90571104 - Filter plug LT77 Transmission or Gearbox Part Land Rover Range Rover Defender, Discovery, Range Rover

90571104 - Gearbox Filter Plug – LT77

- €19,20

€19,20

€19,20 - €19,20

€19,20

Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.

Gearbox Filter Plug for the LT77 five-speed manual gearbox. The plug closes the bore in the extension case that gives access to the gearbox oil filter screen.

Removing the plug allows the filter/strainer to be reached for cleaning or renewal during an oil service. Refitted with its sealing washer, it retains the gearbox oil and keeps the filter chamber sealed against leaks.

Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994

Fitment Notes DEFENDER 1987-2006 — LT77 5-speed manual gearbox extension case (4-cyl & V8)
DISCOVERY 1 1989-1998 — LT77 5-speed manual (4-cyl & V8 petrol)
RANGE ROVER CLASSIC 1986-1994 — LT77 5-speed manual gearbox extension case

Alternative Codes

90571104

In stock 3 units

2 · 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 is the LT77 gearbox filter plug for?

The LT77 gearbox filter plug closes the access bore in the gearbox extension case that reaches the oil filter screen. Removing it lets you get to the filter or strainer for cleaning or renewal during an oil service, then it seals the chamber back up.

Which gearboxes use this filter plug?

This filter plug fits the LT77 five-speed manual gearbox used in Land Rover Defender from 1987 to 2006, Discovery 1, and Range Rover Classic, behind both four-cylinder and V8 engines. Confirm your gearbox is an LT77 before ordering.

Does the filter plug need a new sealing washer?

The filter plug seals against the case with a sealing washer, and it's good practice to renew that washer whenever the plug is removed. A reused or damaged washer can weep gearbox oil, so fitting a fresh washer on reassembly typically avoids a leak.