RTC4338 | Sealing Washer - ZF 4-Speed Auto | Defender, Discovery, Range Rover
To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: RTC4338 - Sealing Washer for Blanking Plug - ZF 4-Speed Automatic
RTC4338 is a sealing washer used under the blanking plug on the oil pump closure plate of ZF 4-speed automatic transmissions. Fitted to the oil pump closure plate, it provides a fluid-tight seal to prevent transmission fluid leaks and secures the closure plate blanking plug in position; it should be inspected whenever the blanking plug is removed during service.
Compatibility
- Defender (1987-2006)
- Discovery 1 (1989-1998) - From VIN FA393361 to WA799999
- Discovery 2 (1998-2004)
- Range Rover Classic (1986-1991) - To VIN HA610293
- Range Rover Classic (1992-1994) - From VIN JA610294
- Range Rover P38
Frequently Asked Questions
RTC4338 provides a fluid-tight seal between the blanking plug and the oil pump closure plate on ZF 4-speed automatic transmissions, helping to prevent transmission fluid loss from the oil pump assembly. The washer should be inspected whenever the blanking plug is removed and replaced if distorted or damaged to avoid leaks.
| Model | Variant |
|---|---|
| Land Rover Defender (1987-2006) | Oil Pump (Automatic Transmission) |
| Land Rover Discovery 1 (1989-1998) | Oil Pump (Automatic Transmission) (From VIN FA393361 to WA799999) |
| Land Rover Discovery 2 (1998-2004) | Converter, Bell Housing and Oil Pump (Automatic Transmission) |
| Land Rover Range Rover Classic (1986-1991) | Oil Pump (Automatic Transmission) (To VIN HA610293) |
| Land Rover Range Rover Classic (1992-1994) | Oil Pump (4 Speed, Automatic Transmission) (From VIN JA610294) |
| Land Rover Range Rover P38 |
If you are unsure of compatibility with your vehicle, you can also confirm by checking against your V.I.N. Simply reach out to us with your V.I.N and desired part number via our Contact page or use our Finding Part Numbers page.
Replace the sealing washer whenever the blanking plug is removed or if any sign of leakage or damage is found. Inspect it during transmission or oil pump servicing and fit a new washer if necessary.
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