NTC1665 | Exhaust Silencer Assembly - 4 Cylinder Turbo Diesel | Defender 1987-2006
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: NTC1665 - Exhaust Silencer Assembly
NTC1665 is an exhaust silencer assembly fitted to the rear exhaust of Defender 90 models with the 4 cylinder turbo diesel. It reduces exhaust noise and helps maintain correct exhaust flow and back-pressure for the turbo diesel installation; the internal chambers and flow paths alter the acoustic signature of exhaust gases to lower tailpipe noise while preserving the engine's required exhaust characteristics. Mounting points on the silencer align with the vehicle's exhaust hangers and connecting pipes to form a sealed exhaust run-damaged mounts or perforation can lead to audible leaks and altered exhaust performance. When replacing this assembly, check adjoining pipe flanges and rubber hangers for wear so the exhaust run maintains correct alignment and sealing.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Defender (1987-2006, L315) - 4 Cylinder Turbo Diesel - Rear, 90 wheelbase
Frequently Asked Questions
NTC1665 fits into the rear section of the Defender 90 exhaust and provides the primary noise attenuation for the 4 cylinder turbo diesel. Its internal chambers and flow paths reduce tailpipe noise while maintaining the exhaust back-pressure required for correct engine and turbocharger function; damaged mounts or perforation can cause audible leaks and altered exhaust performance.
| Model | Variant |
|---|---|
| Land Rover Defender (1987-2006, L315) | Rear - 4 Cylinder Turbo Diesel - 90 wheelbase |
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.
Inspect the silencer during routine service or exhaust inspections and replace if there is perforation, significant corrosion or damaged mounting points that cause audible leaks or altered exhaust performance.
- 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.