ERR6401 - Oil Suction Pipe O-Ring – TD5

- €9,10

€9,10

€9,10 - €9,10

€9,10

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Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.

Oil Pump Suction Pipe O-Ring for the 2.5L Td5 five-cylinder diesel engine, part of the engine lubrication circuit.

It seals the joint between the oil pump suction (pickup) pipe and the oil pump, preventing air being drawn into the suction side and maintaining oil pump priming and delivery pressure. Renewed whenever the suction pipe or oil pump is disturbed.

Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 2 1998-2004 (L318)

Fitment Notes DEFENDER 1998-2006 — 2.5L 5-Cyl TD5, oil pump suction pipe seal
DISCOVERY 2 1998-2004 — 2.5L 5-Cyl TD5, oil pump suction pipe seal

Alternative Codes

ERR6401

In stock 9 units

8 · Gouda 1 · Drachten

Express delivery available

When will my order arrive?

Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
Netherlands / Belgium / Germany: 2–4 working days.
Other EU countries + UK: 4–8 working days.
Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What does the ERR6401 oil suction pipe O-ring do?

The ERR6401 O-ring seals the joint between the oil pump suction (pickup) pipe and the oil pump on the 2.5L Td5 five-cylinder diesel. It stops air being drawn into the suction side, keeping the oil pump primed and maintaining delivery pressure.

Why is this O-ring important to replace?

A perished or leaking suction pipe O-ring lets the Td5 oil pump draw air instead of oil, which can cause low oil pressure and poor priming. It's a low-cost seal, so it's typically renewed whenever the suction pipe or oil pump is disturbed.

Where does it fit on the engine?

The ERR6401 sits at the oil pump pickup inside the lubrication circuit of the 2.5L Td5, sealing the suction pipe to the oil pump. Access usually means removing the sump on the Defender or Discovery 2.

Which vehicles does the ERR6401 fit?

The ERR6401 fits the 2.5L Td5 five-cylinder diesel in the Defender (1998-2006) and Discovery 2 (1998-2004). It's specific to the Td5 oil pump suction pipe, so confirm your engine is the Td5 before ordering.