MJN100910 | Injector Leak-Off Pipe | Defender, Discovery 1, Range Rover Classic
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
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
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: MJN100910 - Injector Leak-Off Pipe
MJN100910 is an injector leak-off pipe for 300Tdi engines. It collects excess fuel discharged from the injector bodies and routes this spill fuel back into the vehicle fuel return circuit via a controlled route alongside the injector rail, helping to prevent fuel pooling, avoid fuel odour and maintain consistent injector return pressure. Replace damaged or blocked leak-off pipes to prevent rough running and check associated banjo bolts and sealing washers when installing.
Please note: When fitting this leak-off pipe replace the banjo bolts and washers; banjo bolt and washer kit STC3297 is available separately.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Defender - 300Tdi (From unit 16L77713B)
- Discovery 1 - 300Tdi
- Range Rover Classic (1986-1994) - 300Tdi
Frequently Asked Questions
The MJN100910 leak-off pipe collects excess fuel from the injector bodies on 300Tdi engines and returns it to the vehicle's fuel return circuit. Fitted alongside the injector rail, it provides a sealed route for spill fuel to prevent pooling and help maintain consistent injector return pressure. Inspect for blockages or damage and replace if necessary; renew sealing washers and banjo bolts when refitting.
| Model | Variant |
|---|---|
| Land Rover Defender | 300Tdi (From unit 16L77713B) |
| Land Rover Discovery 1 | 300Tdi |
| Land Rover Range Rover Classic (1986-1994) | 300Tdi |
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 leak-off pipe if it is damaged, cracked or blocked, as this can cause rough running or fuel odour. Always check and renew the banjo bolt sealing washers when fitting to ensure a leak-free installation.
- C8 products are usually supplied by Britpart.
- L8 products are genuine Land Rover parts.
- Z8 products are normally supplied by Allmakes.
All products and accessories available on LRDirect.com come with a 2-year warranty.