STC4098/99GEN Transmission Sump Drain Plug & Washer Set – Discovery II / Range Rover P38

Keep your automatic transmission properly serviced and leak-free with this Transmission Sump Drain Plug & Washer Set (Part No. STC4098/99GEN). This Genuine-spec set includes the correct drain plug (STC4098) and sealing washer (STC4099) designed specifically for Land Rover automatic transmissions.

A worn plug or crushed washer can lead to fluid seepage, contamination, or difficulty achieving proper torque during service. Replacing both components during every fluid change ensures a clean seal and reliable maintenance of your Rover’s A/T system.

Includes:

• STC4098 – Drain Plug

• STC4099 – Sealing Washer

• Sold as a matched Genuine-spec set

Fits:

• Discovery Series II (1999–2004)

• Range Rover P38 4.0 (1999–2002)

• Range Rover P38 4.6 (1999–2002)

Install tip: Always torque to factory spec and clean the sump surface to ensure a proper seal. Replace washer each time the plug is removed.

Supersession Part Numbers

No supersessions found.

FAQ

Is this a complete set?
Yes — you receive the drain plug and washer together.

Is this for automatic transmissions only?
Correct — this set is for A/T (automatic transmission) vehicles.

Should the washer be replaced every fluid change?
Yes — the sealing washer is designed for single-use to ensure leak-free sealing.

Part Number: STC4098/99GEN

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