ALU1403L - Aluminium Washer

- €0,50

€0,50

€0,50 - €0,50

€0,50

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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.

Aluminium Sealing Washer is a soft metal crush washer fitted under a threaded plug or fitting to form a leak-tight joint.

When the bolt or plug is torqued, the soft aluminium deforms to fill minor surface irregularities between the fastener head and its seat, sealing against fluid leakage. It is commonly used on sump and gearbox drain plugs and other threaded oil and fluid fittings, and is intended for renewal each time the joint is disturbed.

Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Land Rover Discovery 2 1998-2004 (L318)
Land Rover Freelander 1 1996-2006 (L314)
Range Rover Classic up to 1994
Range Rover Classic 1994-2001 (P38)

Fitment Notes Generic sealing/drain-plug washer — multiple applications. Sumps: Defender 300TDi, Discovery 2 V8, Range Rover P38 (1994-2001) V8, Range Rover Classic 2.5TDi, Freelander; also gearbox extension cases & front housings.

Alternative Codes

ALU1403LALU1403LX

In stock 202 units

199 · Gouda 3 · 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 ALU1403L aluminium washer do?

The ALU1403L is a soft aluminium crush washer fitted under a threaded plug or fitting to form a leak-tight joint. When torqued, the soft aluminium deforms to fill minor surface irregularities and seals against fluid leaks. It's commonly used on sump and gearbox drain plugs.

Can the aluminium sealing washer be reused?

No, aluminium sealing washers are typically single-use. Once crushed, the washer has deformed to its seat and won't reseal reliably if refitted. Replace it every time the plug or fitting is disturbed to avoid weeping joints. This is standard practice on drain-plug and oil-fitting work.

Which Land Rovers use the ALU1403L washer?

The ALU1403L suits sump and gearbox drain-plug jobs across several Land Rovers, including Defender 300TDi, Discovery 1 and 2, Freelander 1, Range Rover Classic and P38. SAP lists it as a generic sealing washer for sumps, gearbox extension cases and front housings, so match it to your plug seat.

How many aluminium washers do I need for an oil change?

Typically one aluminium washer per drain plug, so a standard engine oil change usually needs one. A job that also drains the gearbox or other fluid housings needs an extra washer per plug. Since they're single-use, it's worth keeping spares for the next service.