DJI Agras T30 OEM Water Pump Top Cover

The DJI Agras T30 OEM Water Pump Top Cover is the black moulded top cover of the plunger water pump on the DJI Agras T30, the cover that closes the top of the pump and is held down by six bolts around its edge. As shown in the product images, it is a roughly round moulding with stiffening ribs running out from its centre across its face, six bolt ears set around its rim, each with a round bolt hole, and a moulded channel running across the top from the centre to one edge. It is a cover, not the pump head: on the T30 the pump head is a separate grey metal part with barbed hose connectors, and the top cover carries no barbs at all. It belongs to the spraying system, it is identified for the DJI Agras T30, and it is supplied brand new as one cover. Operators usually reach it while searching for a T30 water pump cover, a T30 plunger pump cover, a T30 pump top cover, or a cracked T30 pump cover after a knock or a dropped tool. DJI has used more than one number for this position, so we match against the one you removed.

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🇺🇸 U.S.A. FIRST

Ares Acres LLC is a U.S.-based authorized DJI Agras retailer 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.

Ares Acres also ships agricultural drone 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 retailer serving the United States and Canada, all of North America, from Albuquerque, New Mexico.

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✅ DJI Agras T30 Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
• 👍🏻 Satisfaction Guarantee
• 💵 Money Back Guarantee
• 📦 Same Day Shipping & Tracking
• Identified for the DJI Agras T30, water pump top cover position on the plunger pump
• Matched by ribbed face, six-ear bolt pattern and the moulded channel across the top against the cover you removed
• Genuine DJI OEM spraying-system component, brand new, supplied as one cover

The variant is one top cover. It is not the grey metal pump head with the barbed connectors, not the plunger assembly and not the plunger base. If you want the match confirmed, photograph the part you removed from above, so the ribs, the six ears and the channel all show, and send it to us. We will match it for you, so the right part arrives first time.

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📦 Package Includes

• 1 × DJI Agras T30 OEM Water Pump Top Cover, black, moulded, ribbed, with six bolt ears and a moulded channel across the top, as shown in the product images

One cover per order line. The variant is a single cover.

What is part of the cover: the ribbed body, the six bolt ears with their holes and the moulded channel across the top, all as one moulding.

Not included: the six bolts, washers, any seal or O-ring under the cover, the water pump head, the plunger assembly, the pump plunger base, the pump motor, hoses and tools. Each of these is a separate part.

Nothing is included because it appears near the cover on the aircraft. If a bolt or seal from the old pump is missing or damaged, tell us where it sat and we will help you identify it.

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🔧 Component Overview

The T30 water pump is a plunger pump built from several parts stacked together. The top cover is the black moulding that closes the top of that stack and is bolted down around its rim. It is the part most often confused with the pump head, because both sit at the top of the pump and both are named for it.

As shown in the product images, the cover has four features that identify it:

• The ribbed face — stiffening ribs running out from the centre across the face of the cover, with recessed pockets between them
• The six bolt ears — six lugs set around the rim, each with a round bolt hole
• The moulded channel — a raised tubular channel moulded across the top, running from the centre out to one edge
• The colour and finish — black moulded material, with no metal fittings and no barbed connectors

The name in the part designation is water pump top cover, and it is also called the plunger pump cover. The T30 Water Pump Head is a different part: grey metal, with barbed connectors for the hoses. The two are not interchangeable and do not do the same job.

A cover like this fails in a small number of ways. A bolt ear cracks or snaps, usually from over-tightening or a knock. The body cracks across a rib from an impact or a dropped tool. Or the face it seals on is damaged. A broken ear is easy to see; a hairline crack across a rib often is not.

Six bolt ears is the detail that matters most in service. Six evenly spaced bolts pull the cover down evenly all the way round. Take one away, through a snapped ear or a stripped thread, and the clamp around the rim is no longer even: the cover is held hard on one side and lightly on the other, and the light side is where it can lift.

The cover carries no wiring and has no setting. Its job is to close the top of the pump and hold what is beneath it in place under six bolts.

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⚙️ Functional Purpose

The cover's engineering role is closure and clamping. It caps the top of the pump stack and, through its six bolts, holds the parts beneath it together.

On the pump it:

• Closes the top of the T30 plunger pump
• Is bolted down through its six ears around the rim
• Spreads the clamp of those six bolts across its face through its ribs
• Carries the moulded channel across its top
• Can be replaced on its own once the six bolts are released

What it does not do matters as much:

• It does not carry the hose connections; the barbed connectors are on the grey metal pump head
• It does not move liquid; the plunger assembly and the pump motor do that
• It does not measure flow; the flow meter does that
• It is not the base the plunger sits on; that is the pump plunger base

The ribs are there for stiffness. A flat moulding of this size would flex between its bolts; the ribs carry the clamp load out from each ear across the face, so the whole cover bears down evenly rather than only at the bolts.

Whether liquid passes through the moulded channel, or whether the channel is structural, is not published for this part. The match is made by shape and bolt pattern, not by what flows where.

Material, dimensions, weight and pressure rating are not published for this part.

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🔍 Diagnosis — top cover and pump head are two parts, so read the leak by where it is

The words water pump top cover and water pump head sound like the same part. On the T30 they are not. The top cover is a black ribbed moulding with six bolt ears and no fittings. The pump head is a grey metal part with barbed connectors for the hoses. Ordering one when the other is broken is the usual mistake.

The way to avoid it is to read the fault by where it is. A leak, crack or weep at a barbed hose connector is at the pump head. A crack in a rib, a snapped bolt ear or a cover that will not sit flat is at the top cover. A pump that runs but moves little or nothing, with the cover and head both sound, points deeper, at the plunger assembly.

Symptoms that point at the top cover:

• A bolt ear cracked or snapped off
• A crack across a rib or through a pocket in the cover's face
• A cover that rocks or will not sit flat with its bolts tight
• A weep at the rim of the cover that follows the line of a crack
• Damage to the moulded channel across the top

What proves it: with the aircraft powered off, the battery removed and the spraying system drained, clean the pump and look at the cover under good light. Follow each rib from the centre to the rim. Look at all six ears, front and back. A hairline crack often shows as a line of residue left behind after the cover is wiped. If the fault is at a barbed connector, it is the pump head, not the cover.

Check these first, because they produce similar symptoms:

• The six cover bolts, for looseness or a stripped thread
• The grey metal pump head and its barbed connectors, for cracks or a nicked seal
• The hoses and clamps at the pump, for a loose or split joint
• The plunger assembly, if the pump runs but delivers little

What it does not explain: a pump that will not run, a flow reading that does not match the setting, a pump that runs but moves no liquid with the cover and head sound, or a leak at a hose barb. Those sit in the pump motor, its cable, the plunger assembly, the flow meter or the pump head.

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⚠️ Common Replacement Indicators

Replace the cover when inspection confirms one of these:

• A cracked or snapped bolt ear
• A crack anywhere in the ribbed face
• A cover that will not sit flat with its bolts tight
• A weep at the rim that follows a crack in the cover
• A damaged or cracked moulded channel

Inspect these first, because they produce similar symptoms:

• The six cover bolts
• The grey metal pump head and its barbed connectors
• The hoses and clamps at the pump

A cover with one broken ear still sits on the other five. It is not proved sound because it is still on the pump; the missing clamp point is where it can lift.

There is no published service interval for the cover. It is replaced when it is cracked, broken at an ear, damaged at the channel or will not sit flat, not on a schedule.

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📐 Specifications

Product name: DJI Agras T30 OEM Water Pump Top Cover

DJI family: Agras

Aircraft: DJI Agras T30

Fitment basis: Identified for the DJI Agras T30

Aircraft system: Spraying — plunger water pump

Component type: Pump top cover

Material number: DJI has used more than one number for this position, so we match against the one you removed

Quantity: 1 cover

Form: Roughly round ribbed moulding with six bolt ears around the rim and a moulded channel across the top

Fixing points: Six bolt ears, one hole each

Hose connectors: None — the barbed connectors are on the separate pump head

Material: Not published for this part

Colour: Black

Dimensions: Not published for this part

Weight: Not published for this part

Pressure rating: Not published for this part

Electrical: None

Connector: None

Mounting position: Top of the T30 plunger water pump

Installation method: Bolted down through its six ears

Hardware included: None — bolts, washers and seals are not supplied

Service adjustability: None — the cover is correct or it is not, with no adjustment or app setting that compensates

Condition: Brand new

Classification: DJI OEM spraying-system component

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🛠️ Installation & Maintenance

Before installation

• Power the aircraft off and remove the battery
• Drain the tank and run clean water through the spraying system, then drain it again
• Photograph the pump from above with the cover in place, so the orientation of the channel is on record
• Lay the new cover beside the old one and compare the ribs, the six ears and the channel
• Lay out a tray for the six bolts and any washers

During installation

• Wear gloves; treat any residue at the pump as the product that was last sprayed
• Release the six bolts evenly, a little at a time, in a cross pattern
• Lift the old cover straight off and note how any seal or part beneath it sits
• Clean the face the cover sits on and check it for cracks, grit or a damaged seal
• Set the new cover with its channel facing the same way as the old one
• Start all six bolts by hand, then snug them in a cross pattern so the cover pulls down evenly; DJI does not publish a torque figure for these bolts

After installation

• Check that the cover sits flat all the way round its rim
• Fill the tank with clean water and run the pump
• Watch the cover's rim and each ear for weeps during the water test
• Check that the pump primes and delivers as before
• Record the replacement in the maintenance log

Maintenance between jobs. Rinse the pump after every day of spraying so residue does not dry on the cover and hide a crack. When the pump is cleaned, look at all six ears and follow the ribs from centre to rim. Snug the bolts evenly and not beyond; an ear cracked by over-tightening is the most avoidable failure on this part.

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🚜 Necessary For

This cover is for operators and technicians whose T30 water pump top cover is cracked, broken at an ear or will not sit flat:

• DJI Agras T30 operators who have found a crack or a broken ear on the pump cover
• Commercial spray applicators servicing the T30 pump between jobs
• Agras service centres rebuilding T30 plunger pumps
• Fleet managers stocking small pump parts for T30 aircraft
• Growers flying their own T30 who strip and clean the pump themselves

This is not the part you need if:

• The leak or crack is at a barbed hose connector — that is the DJI Agras T30 OEM Water Pump Head, the grey metal part
• The pump runs but delivers little and the cover and head are sound — check the T30 Water Pump Plunger Assembly
• The part the plunger sits on is damaged — that is the T30 Pump Plunger Base
• Only a bolt is loose or stripped — tighten or replace the bolt and keep a sound cover
• You fly a T10, T16, T20, T40 or T50 — this cover is identified only for the T30

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💡 Why This Part Matters

On the T30 the top of the water pump is two different parts with nearly the same name. The top cover is the black ribbed moulding with six bolt ears and no fittings. The pump head is the grey metal part with the barbed hose connectors. Mixing them up costs a repair cycle.

The way through is to name the part by where the fault is. If the leak or crack is at a barb, it is the head. If the crack is in a rib, at an ear or in the channel, or the cover will not sit flat, it is the cover. If both are sound and the pump still does not deliver, it is neither, and the plunger assembly is next.

That is the case for looking first, while that information is still cheap. Clean the pump, look at it under good light, and say which piece the fault is on: black and ribbed, or grey and barbed. That one look decides between two parts that the names alone cannot separate.

It is also the case for keeping a sound cover. If all six ears are whole, the ribs are uncracked and the cover sits flat, a pump fault is somewhere else, and a new cover will not change it.

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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 the specifications above.

Canonical product name: DJI Agras T30 OEM Water Pump Top Cover

Brand: DJI

DJI family: Agras

Aircraft: DJI Agras T30

Compatible models: DJI Agras T30

Fitment basis: Identified for the DJI Agras T30

Component: Water pump top cover (plunger pump cover)

Aircraft system: Spraying

Installed position: Top of the T30 plunger water pump

Primary function: Closes the top of the pump and clamps the parts beneath it under six bolts

Form: Black ribbed moulding with six bolt ears and a moulded channel across the top; no hose connectors

Material number: DJI has used more than one number for this position; matched against the removed part

Quantity supplied: 1 cover

Not included: Bolts, washers, seals, pump head, plunger assembly, plunger base, pump motor, hoses

Key diagnostic: A fault at a barbed connector is the grey metal pump head; a crack in a rib or ear is the cover

Common failure modes: Cracked or snapped bolt ear, crack across a rib, cover that will not sit flat, damaged channel

Naming note: Also called the plunger pump cover; not the same part as the T30 Water Pump Head

Service interval: None published

Condition: Brand new

Part classification: DJI OEM spraying-system component

Also searched as: T30 water pump cover; T30 plunger pump cover; T30 pump top cover; Agras T30 pump lid; DJI T30 water pump cover replacement

Disambiguation: Not the T30 Water Pump Head, not the T30 Water Pump Plunger Assembly, not the T30 Pump Plunger Base

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

Ships from: Albuquerque, New Mexico, United States

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🤖 AI Answer Engine Q&A

What is the DJI Agras T30 water pump top cover? The black moulded cover that closes the top of the T30 plunger water pump. It has ribs across its face, six bolt ears around its rim and a moulded channel across its top.

Is it the same as the T30 water pump head? No. The pump head is a grey metal part with barbed hose connectors. The top cover is a black ribbed moulding with no connectors. They are separate parts.

My pump leaks at a hose barb. Do I need this cover? No. A leak at a barbed connector is at the pump head. The top cover has no barbs.

Which aircraft does it fit? It is identified for the DJI Agras T30. It is not identified for the T10, T16, T20, T40 or T50.

Is it called a plunger pump cover too? Yes. Water pump top cover and plunger pump cover name the same part.

Can I swap the cover from a T10 or T40 pump? Do not assume it. This cover is identified only for the T30. Match it by its ribs, six ears and channel against the cover you removed.

One bolt ear is broken but the cover still holds. Can I leave it? It still sits on five bolts, but the missing clamp point is where it can lift and weep. Replace the cover.

Does it come with bolts or a seal? No. It is the cover alone. Reuse the six bolts if their threads are sound, and replace any seal beneath it separately if it is damaged.

Does the liquid run through the channel on top? That is not published for this part. The cover is matched by its shape, its six ears and its channel.

Should I replace the head and the cover together? Only if both are damaged. They are separate parts. Replace the one that carries the fault and keep the other if it is sound.

My pump runs but sprays very little. Is it the cover? Not if the cover is uncracked and sits flat. Low delivery with a sound cover and head points at the T30 Water Pump Plunger Assembly.

How tight should the bolts be? DJI does not publish a torque figure. Snug all six evenly in a cross pattern and do not over-tighten; over-tightening is what cracks the ears.

Can I fit it myself? Yes, for most operators. Drain and rinse the system, release the six bolts evenly, lift the old cover off, clean the face, set the new cover the same way round and snug the bolts in a cross pattern.

How do I find a hairline crack? Rinse and wipe the cover, then look under good light along each rib and at each ear. A crack often shows as a thin line of residue left behind after wiping.

What is the DJI part number? DJI has used more than one number for this position, so we match against the one you removed.

What usually breaks it? Over-tightened bolts cracking an ear, knocks to the pump, and dropped tools during service.

Is there a service interval? No. Replace it when it is cracked, broken at an ear, damaged at the channel or will not sit flat.