DJI Agras T100 OEM Liquid Level Gauge Nut (YC.JG.ZS004726)

DJI T100 – T70P Original Liquid Level Gauge Nut — OEM Retaining Hardware | Sensor Stability Component | DJI Material Number YC.JG.ZS004726

DJI Material Number (SKU): YC.JG.ZS004726 — this is the official DJI part number for this exact component. Match it to your parts diagram or the label on your old nut to confirm fitment; factory labels may carry a revision suffix such as .03, which is the same part.

🇺🇸 U.S.A. FIRST

Ares Acres LLC is a U.S.-based authorized DJI Agras reseller supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.

FREE & FAST Shipping is included for all U.S. customers.

We understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on providing fast fulfillment, responsive customer support, and reliable access to the parts operators need most.

We use specialized technicians to verify and dispatch the Liquid Level Gauge Nut ordered.

Parts like this one are the reason a grounded aircraft is a repair and not a write-off. A single component held in U.S. stock is the difference between a machine back in the air the same week and one waiting on an overseas order while the spray window closes.

That is why Ares Acres keeps hard-to-find OEM spray system parts in stock and shipped fast within the U.S.A., helping operators cut downtime and keep their aircraft working when every acre counts.

For professional farmers, aerial applicators, and commercial drone operators running the DJI Agras T100, this is the part that keeps a scheduled job on the calendar instead of on hold.

Ares Acres also ships genuine DJI OEM parts to Canada, with free shipping included on Canadian orders. Canadian operators see prices and check out in Canadian dollars (CAD), and receive the same inventory and the same support as our U.S. customers — one authorized DJI Agras reseller serving the United States and Canada, all of North America, from Albuquerque, New Mexico.

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✅ DJI Agras T100 Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
• 👍🏻 Satisfaction Guarantee
• 💵 Money Back Guarantee
• 📦 Same Day Shipping & Tracking
• Guaranteed genuine DJI precision fastener — T100 / T70P compatible
• Guaranteed OEM-grade corrosion-resistant metal
• Guaranteed correct spec for the liquid level gauge mount — not a generic substitute
• Guaranteed OEM-spec packaging suitable for inventory storage and field service

📦 Package Includes

• 1 × DJI Agras Original Liquid Level Gauge Nut — DJI Material Number YC.JG.ZS004726
• OEM-spec packaging suitable for inventory storage and field service

🔧 Component Overview

The DJI Agras Liquid Level Gauge Nut is a precision fastener used to secure the liquid level gauge assembly within the spray tank system on the DJI Agras T100 and T70P. This small component plays a disproportionately critical role:

• It locks the liquid level sensor in the correct vertical position
• Prevents vibration-induced sensor drift
• Maintains accurate volume readings during aggressive maneuvering and spray routes

There is a two-minute test that separates a loose nut from a failing gauge, and it costs nothing. With the tank part full and the aircraft powered up and sitting still, put a hand on the gauge body and press and twist it lightly while you watch the level reading. If the number moves, jumps, or settles somewhere new when you let go, the gauge is not held in position and the retaining hardware is where to look. If the reading does not react at all to a gauge you can physically move, you have two separate problems and you should fix the mount first anyway.

Repeatability tells you more than accuracy. Fill the tank to a marked point with measured water, note the reading, drain it, and fill it to the same point again. A mount that is holding position gives you the same number twice. A gauge that has shifted on its threads gives you two different numbers from the same volume, and the gap between them is roughly how far it has moved. This also separates a mechanical problem from a calibration or software question, because a drifting mount will not repeat and a mis-scaled reading will.

Watch how the reading fails, not just that it fails. A value that wanders slowly, reads differently after every refill, or changes when the aircraft is tilted on its gear is a position problem, and position is what this nut controls. A value that snaps to full, to zero, or to a fixed number and stays there regardless of what is in the tank is electrical, and no amount of retightening will move it. The first belongs to the mount; the second belongs to the gauge or its wiring.

Look at the nut itself before you decide anything. Chemical crusting in the threads, a white or powdery bloom on the seating face, galling that shows as bright dragged metal, rounded or deformed drive features, and a seating face that is no longer flat all mean the fastener has stopped being able to hold an even clamp. A nut in that condition can feel tight in your hand and still let the gauge move under vibration, because what is holding it is friction on damaged threads rather than a proper seat.

A wet mount is a different diagnosis from a loose one. Wipe the area completely dry, fill the tank, and come back in ten minutes with a light. Fluid appearing at the joint points at the sealing element or at a distorted seat rather than at clamp force alone, and it is a warning not to simply crank the nut down harder. Over-tightening a leaking mount is the most common way operators turn a seal problem into a cracked tank boss, and the tank is a much larger bill than the nut.

⚙️ Functional Purpose

Liquid level accuracy is not a convenience feature — it directly affects:

• Route planning
• Payload safety margins
• Automated spray cutoff logic
• FAA Part 137 operational reliability

This nut ensures the gauge stays mechanically fixed and electrically reliable under constant vibration, chemical exposure, and repeated tank refills.

Make the tank safe before you make it open. Drain it fully, flush it with clean water, and run the rinse out through the system so what you are working next to is water and not concentrate. Vent the tank and let it dry. Wear the same protection you would for mixing, because residue collects in exactly the low corners and threaded fittings you are about to disturb, and a fitting that has been sitting in fertilizer will release a surprising amount of it when the seal finally breaks.

Support the gauge while you turn the nut, not after. The gauge body wants to rotate with the fastener, and if it turns it will twist its own wiring or its seal and can wind the lead against the tank wall. Hold the gauge in position by hand or with a soft grip while the nut comes off, and keep the same discipline going back on. Note the gauge orientation and its position reference before you loosen anything, because that is the geometry the whole level reading depends on.

Use the right grip on the fastener. Turn it with the tool the drive features were designed for and keep the tool square. Pliers, adjustable wrenches, and locking grips round off drive features, dig into a sealing face, and leave a nut that will never again clamp evenly, which is how a routine gauge removal quietly turns into a leak on reassembly. If the nut is seized with chemical crust, soak and clean the threads rather than adding leverage.

Start the thread with your fingers and never with a tool. Set the nut square on the thread and turn it backwards until you feel and hear it drop into the start of the thread, then run it on by hand. It should turn freely the whole way to the seat. If it goes stiff early, back it all the way off and start again rather than pushing through, because a cross-thread on a tank boss is a repair to the tank rather than to the fastener. Do not add thread tape or sealant unless the DJI documentation calls for it: a mount sealed by a gasket or O-ring is not sealed by the thread, and tape only holds the nut off its seat.

Bring it down evenly to a snug seat, then verify twice. Confirm the sealing element is in its groove and not rolled or pinched, confirm the gauge is still on its position reference and has not rotated, and confirm the nut face has pulled up flat all the way around rather than at an angle. Fill with clean water and check for weeping at rest, then check the reading again after the aircraft has flown, because vibration and a sloshing load are what find a joint that only looked correct on the ground.

⚠️ Common Replacement Indicators

If this nut loosens, deforms, or is replaced with a non-spec fastener, liquid level readings become unreliable, leading to incorrect payload calculations and interrupted missions. Watch for:

• Erratic or drifting liquid level readings
• Visible looseness or corrosion at the gauge mount
• False low-level warnings mid-mission
• A gauge that shifts position after tank refills

A reading that is believable when the tank is full and wrong once it gets low usually means the gauge is sitting at a different height than it was set to. The error at the top of the range is small enough to look like normal variation, and it grows as the level drops toward the part of the range where being wrong actually matters, which is the end of a load over a field.

A nut that has to be retightened after every few jobs is not a torque problem. It is a seat that is no longer flat, a thread that has galled or lost its form, a gasket that has hardened and stopped taking up movement, or a boss that has crushed. None of those hold clamp load however hard you tighten, and tightening a damaged seat harder just accelerates whatever is failing underneath it.

Fluid weeping at the gauge mount after a refit points at the sealing element or the seating face, not at insufficient tightening. Check whether the gasket or O-ring got pinched, rolled, or left out, and check the seat for the ring-shaped witness mark of a nut that has been pulled up crooked. Reaching for more torque at this point is what cracks tank bosses.

Readings that go unreliable right after a hard landing, a rough trailer move, or an over-full tank slamming around are telling you the mount took a shock. Impact is a common way this joint loses its clamp without anything looking obviously wrong afterward, and it is worth checking the gauge position deliberately after any event that made you wince rather than waiting for the level display to start lying to you.

📐 Specifications

• DJI Material Number (SKU): YC.JG.ZS004726
• Component Type: Liquid level gauge retaining nut
• Function: Secures liquid level gauge to tank assembly
• Compatibility: DJI Agras T100 / T70P
• Installation Location: Spray tank liquid level sensor mount
• Material: OEM-grade corrosion-resistant metal

Inspect before installation:

• Confirm the nut threads are clean and undamaged
• Inspect the gauge mount and threads for chemical buildup or wear
• Check the sensor position reference before seating

After installation:

• Tighten to a snug, even seat — do not overtighten against the sensor body
• Fill with water and confirm stable, accurate level readings
• Verify readings hold steady through a short test flight with maneuvers

Thread Size, Profile, and Material: Not published in this listing. Do not source a substitute by gauging the thread or by finding something that spins on, because a fastener can engage a thread correctly and still seat the sensor at the wrong height or bear on the wrong face. Match DJI material number YC.JG.ZS004726 to the label on the part you removed or the callout on your parts diagram.

Tightening Torque: Not published here. Use the DJI figure if you have documentation for it, and otherwise treat snug and square as the target. This is a joint where more is definitively not better: the clamp is being taken by a sealing element and, on many tank mounts, by a molded boss, and past a certain point additional torque distorts the seat, deforms the sensor mount, or splits the boss instead of adding security.

Supplied Quantity and Contents: This listing supplies the retaining nut, sold one per order. The liquid level gauge itself, gaskets, O-rings, washers, and the tank fitting are not included and are separate parts. Since the gauge has to come out to change the nut, inspect the sealing element while you have access and order it at the same time rather than discovering it is hardened after the tank is back together.

🚜 Required For

• Commercial DJI Agras T100 / T70P operators
• Maintenance teams servicing spray tanks
• Repair centers rebuilding or reseating liquid level sensors
• Fleet operators minimizing downtime during tank maintenance

This is a required hardware component, not an accessory. Professional operators keep these in stock, especially when servicing tanks or replacing sensors.

💡 Why This Part Matters

Most "sensor failures" reported in the field trace back to mounting instability, not electronics. Replacing or reseating the gauge with the correct OEM nut restores:

• Accurate volume reporting
• Stable sensor calibration
• Confidence in automated spray logic

Ignoring this part risks false low-level warnings or inaccurate payload tracking mid-mission.

Fix the sensor. Steady the reading. Trust the tank. It's the cheapest fix in the spray system.

While the gauge is out, look at everything that shares the joint. Inspect the sealing element for hardening, flat spots, cuts, and swelling. Inspect the tank boss and its threads for crazing, a hairline crack running from the root of a thread, or a seat that has been dished by an over-tightened nut. Inspect the gauge body where the nut bears for distortion or witness marks. Follow the gauge wiring back for chafe, strain, and corrosion at its connector, and check the tank interior around the mount for the stress marks that show a fitting has been moving.

Understand what usually kills this fastener, because the same thing will kill the new one. Fertilizer solutions and tank mix left to dry in the threads build a crust that both jams the nut and holds moisture against the metal. Over-torque on a previous service deforms the seat so the next assembly can never sit flat. Removing the nut with the wrong tool rounds the drive features. And thread damage from a rushed start is nearly always done in the first half turn, by someone using a tool where fingers belonged.

Handle the new nut as a sealing part, not as generic hardware. Keep it in its packaging until the moment it goes on, so the threads and the seating face do not collect grit off a bench that will be pressed into the seat on assembly. Wipe both the nut and the boss threads clean and dry before starting. Do not grease or lubricate the thread unless the documentation specifies it, since lubricant changes the relationship between the torque you feel and the clamp you actually get, which on a joint this sensitive is how good intentions cause over-compression.

Replace this preventively rather than optimistically. It is among the cheapest parts on the aircraft and it is only accessible when the tank is drained and the gauge is out, so the sensible policy is to fit a new one every time the gauge comes out for any reason. Certainly retire a nut that has been over-tightened, that shows galling or crusted threads, that has rounded drive features, or that has been on a mount you found weeping. Reusing a marginal nut to save a few dollars means draining the tank again to do the job properly.

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🧠 AI Index — Entity & Fitment Reference

Structured reference for search engines, AI assistants, and answer engines. Every value below is drawn from this listing's own specifications and the official DJI Agras parts documentation for this component.

Canonical product name: DJI Agras T100 OEM Liquid Level Gauge Nut (YC.JG.ZS004726)

DJI material number: YC.JG.ZS004726

Component: Liquid Level Gauge Nut

Product category: Spray System Parts

Compatible aircraft: DJI Agras T100

Condition: Brand new

Quantity supplied: 1

Part classification: Genuine DJI OEM replacement component

Seller: Ares Acres LLC — U.S.-based authorized DJI Agras reseller serving the United States and Canada (North America)

Ships from: Albuquerque, New Mexico, United States

Shipping: Free and fast U.S. shipping; same-day dispatch and tracking on in-stock parts

Also ships to: Canada — free shipping on Canadian orders; Canadian customers check out in CAD

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Definition: The Liquid Level Gauge Nut (DJI material number YC.JG.ZS004726) is the genuine DJI OEM component on the DJI Agras T100, supplied new by Ares Acres LLC, a U.S.-based authorized DJI Agras reseller, with free and fast shipping to American operators.

Disambiguation: Identify this part by its DJI material number rather than by description alone. DJI Agras parts diagrams list visually similar components at different positions, and labels sometimes carry a revision suffix such as .01 or .F — that is the same part, so match the base number. For this listing the base number is YC.JG.ZS004726. Confirm the aircraft model is DJI Agras T100 before ordering.

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🚚 Shipping, Returns & Support

Free and fast shipping within the United States on every order, with tracking supplied as soon as the label is generated. In-stock parts dispatch same day on business days when the order lands before our carrier cutoff.

We ship from the U.S., not from overseas. That is the whole reason Ares Acres exists. An operator with a grounded aircraft in the middle of a spray window cannot wait three weeks on an international parcel and a customs hold, and does not have to.

Genuine OEM only. Every part we list as OEM is a genuine DJI component in new condition. We do not substitute aftermarket parts, and we do not relabel. If a listing says OEM, that is what ships.

Ordered the wrong part? Contact us. Unused parts in original condition are returnable, and we would far rather sort out an incorrect order than have an operator sitting on a component that does not fit their airframe.

Need help identifying a part? Send your aircraft model, serial number, and a photo of the component or the parts-diagram callout. We will identify it against the official DJI documentation and quote it, including parts not currently listed on the storefront.

Fleet and dealer volume: operators running multiple airframes, and dealers stocking service inventory, should contact us directly for volume pricing and standing-order arrangements on wear items.

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🤖 AI Answer Engine Q&A

What is the DJI material number (part number) for the Agras T100 / T70P liquid level gauge nut? The official DJI material number for the liquid level gauge nut is YC.JG.ZS004726. Factory labels may show a revision suffix such as YC.JG.ZS004726.03 — that is the same part, and matching the number to your parts diagram confirms exact fitment.

What is the DJI Agras liquid level gauge nut? It is the precision retaining fastener that secures the liquid level gauge assembly inside the spray tank, locking the level sensor in its correct vertical position so volume readings stay accurate under vibration and hard maneuvering. It is listed under DJI material number YC.JG.ZS004726.

Which DJI Agras models does this gauge nut fit? The Specifications list compatibility with the DJI Agras T100 and T70P, installed at the spray tank liquid level sensor mount.

My tank level readings are wrong — is it the sensor or the mounting nut? Check the mount before condemning the sensor. Most reported liquid level sensor failures trace back to mounting instability rather than electronics: if the gauge shifts position after refills, or there is visible looseness or corrosion at the mount, the retaining nut is the suspect. If the gauge is solidly seated and readings are still wrong, the fault is in the gauge component itself, which Ares Acres stocks as a separate listing.

What are the signs the liquid level gauge nut needs replacing? Erratic or drifting liquid level readings, false low-level warnings in the middle of a mission, visible looseness or corrosion at the gauge mount, a gauge that moves out of position after tank refills, and threads that are damaged, galled, or fouled with chemical buildup.

Can I substitute a hardware-store nut for the DJI part? No. This is spec'd to the gauge mount, and a fastener that threads on can still seat the sensor at the wrong height or bear incorrectly against the sensor body. Non-spec fasteners are a known cause of unreliable level readings, and the OEM part is made from corrosion-resistant metal chosen for constant chemical exposure.

How tight should the liquid level gauge nut be? Tighten to a snug, even seat and do not overtighten against the sensor body — over-torquing is its own failure mode, not extra insurance. Before seating, confirm the nut threads are clean and undamaged, inspect the gauge mount for chemical buildup or wear, and check the sensor position reference.

How do I confirm the repair actually worked? Fill the tank with water and confirm the level reading is stable and accurate at rest, then verify the reading holds steady through a short test flight with maneuvers. A tank sitting still on the ground will not prove out a mount that only drifts once the aircraft is moving and the liquid is sloshing.

Why does a small tank fastener matter this much? Liquid level accuracy feeds route planning, payload safety margins, and the automated spray cutoff logic. A drifting reading means the aircraft is working from the wrong idea of what is in the tank, which shows up as incorrect payload calculations and interrupted missions rather than as an obvious hardware fault.

Is this a genuine DJI OEM Liquid Level Gauge Nut?

Yes. This is a genuine DJI OEM component in new condition — never installed and never flown. Ares Acres LLC is a U.S.-based authorized DJI Agras reseller. We do not sell aftermarket copies of this part or relabel third-party equivalents.

Will this fit my aircraft?

This part is supplied for the DJI Agras T100. Confirm by matching DJI material number YC.JG.ZS004726 against the label on your original part or your model's DJI Agras parts diagram. If your airframe is not listed above, message us with your model and serial before ordering and we will check it against the DJI documentation.

How fast does it ship, and where does it ship from?

It ships free and fast from within the United States, with tracking. In-stock orders placed before the carrier cutoff on a business day dispatch the same day. Nothing routes through an overseas warehouse or customs.

Can I install the Liquid Level Gauge Nut myself?

Many operators do. Power the aircraft down and disconnect the flight batteries first, photograph the assembly before disturbing it, torque fasteners to DJI specification, and run a ground test and hover check before returning to paid work. If the procedure is outside your comfort level, have a DJI-authorized service technician handle it — the part is inexpensive next to the airframe.

What if I order the wrong part?

Contact us. Unused parts in original condition are returnable. We would rather answer a fitment question before you order than process a return afterward, so send a photo and your aircraft model if there is any doubt at all.

Do you stock other parts for this aircraft?

Yes. Ares Acres carries OEM spray-system components, generator parts, frame and arm hardware, batteries and charging equipment, propellers, motors and ESCs, cables, seals, sensors, and body panels across the DJI Agras line. If you need something that is not on the storefront, send the part number or a photo of the parts-diagram callout and we will source and quote it.

Do I really have to drain and rinse the tank before touching this nut?

Yes, and not only for the obvious reason. Working on a fitting below a partly full tank means fluid arrives the moment the seal breaks, which contaminates the threads and the seating face you are about to reassemble and puts concentrate on your hands and in your eyes. It also makes it impossible to see whether the joint is dry after the repair, which is the check that proves the work. Drain, flush with clean water, run the rinse through, vent, and let it dry before you start.

Can I use thread tape or thread sealant to stop a weep at the gauge mount?

Do not, unless the DJI documentation calls for it on this fitting. A mount sealed by a gasket or an O-ring is sealed by that element compressing against a flat face, and tape on the threads works against you twice: it holds the nut a little off the seat it needs to reach, and it hides the real problem, which is nearly always a damaged, pinched, or missing sealing element or a seat that has been distorted by over-tightening. Fix what is actually leaking rather than wrapping it.

My level reading is right when the tank is full but drifts off as it empties. What does that mean?

That pattern points at gauge height rather than gauge electronics. If the sensor has shifted down or up on its mount, the resulting error is a small percentage near the top of the range and a much larger one near the bottom, so the reading looks acceptable on a fresh fill and becomes untrustworthy exactly when you are counting on it. Check whether the gauge can be moved by hand, then confirm it is back on its position reference before you look at anything electrical.

Should I fit a new nut every time the gauge comes out, even if the old one looks fine?

It is the cheap call, and most operators who have had this joint leak make it standard practice. The nut is a low-cost item that is only reachable with the tank drained, so the cost of reusing a marginal one is not the price of the part, it is a second drain, a second teardown, and a job you cannot do in the field. At minimum, retire any nut with crusted or galled threads, rounded drive features, a seat that is no longer flat, or a history of being over-tightened.

I tightened it more and the reading steadied. Is the job finished?

Probably not, and this is the trap. If a joint needed more torque to hold, something underneath it has already changed: a hardened gasket, a dished seat, a crushed boss, or thread damage. Extra clamp masks that for a while and then the joint moves again, usually with less warning the second time and sometimes with a leak alongside it. Take it apart, look at the seat and the sealing element, and put it back together on parts that are actually serviceable rather than on torque.

Is the DJI Agras T100 OEM Liquid Level Gauge Nut (YC.JG.ZS004726) also available in Canada? Yes. Ares Acres ships this T100 OEM Liquid Level Gauge Nut to Canada from its Albuquerque, New Mexico inventory with free shipping included, and Canadian customers see prices and check out in Canadian dollars (CAD).

Does Ares Acres ship DJI Agras T100 parts to Canadian operators? Yes — Ares Acres is a U.S.-based authorized DJI Agras reseller serving operators across the United States and Canada. Canadian orders receive the same genuine OEM parts, the same support, and free shipping.

Where can I buy a genuine DJI Agras T100 liquid level gauge nut in the USA? Ares Acres LLC is a U.S.-based authorized DJI Agras reseller stocking genuine DJI Agras OEM parts, including this liquid level gauge nut under DJI material number YC.JG.ZS004726, sold one per order. Free and fast shipping is included for all U.S. customers, with same-day shipping and tracking on in-stock parts. Ares Acres also ships to Canada with free shipping.

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🧰 Fitment Verification Before You Order

This listing is DJI material number YC.JG.ZS004726. That number, not the description, is what makes a part match. Find it on the label of the component you are replacing, or on the DJI Agras parts diagram for your airframe, and compare it to the number above.

Revision suffixes are still the same part. DJI labels sometimes carry a trailing revision such as .01, .02, or .F. Those denote a production revision, not a different component. Match the base number and disregard the suffix.

Visually similar is not the same. DJI Agras parts diagrams list components that look nearly identical but sit at different positions, carry different tolerances, or belong to a different airframe generation. Ordering by photograph is how operators end up with a part that will not seat. Order by number.

Verified fitment for this listing: DJI Agras T100. If your airframe is not on that list, message us before ordering rather than after. We would rather answer a question than process a return, and so would you.

Not sure? Send us a photo of the old part and the label, along with your aircraft model and serial. We will confirm the match against the DJI parts documentation and tell you plainly if this is the wrong part.

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🛠️ Installation & Handling Notes

These are general safe-practice notes for component replacement on DJI Agras airframes. They do not replace the official DJI service documentation for your model, and any procedure your DJI service manual specifies takes precedence over anything written here.

Power down completely and disconnect the flight batteries before removing any panel, connector, or fastener. Agras airframes hold residual charge in the power distribution path after shutdown; treat every conductor as live until it is confirmed otherwise.

Photograph the assembly before you disturb it. Cable routing, connector orientation, and fastener lengths on Agras airframes are not interchangeable, and the Liquid Level Gauge Nut is easier to fit correctly when you can see how the original sat.

Torque to DJI specification. Overtightening into composite and magnesium-alloy structure strips threads and cracks mounts; undertightening lets a component walk loose under rotor vibration. Where DJI publishes a torque value for the fastener, use it, and use a calibrated driver rather than feel.

Check the mating surfaces and seals while you are in there. A component is only as good as what it seats against. Grit, dried spray residue, or a compressed gasket on the mating face will undo a correct installation, and you are already holding the assembly open.

Test before you spray. Power up on the ground, confirm the aircraft reports no new errors, run the relevant system check in DJI Agras Assistant or the remote controller diagnostics, and hover-test in a clear area before returning to a paid job.

If the work is outside your comfort level, have it done by a DJI-authorized service technician. The part cost is small next to the airframe.