ERR743 | Spark Plug RN9YC - 2.5, 3.5/3.9 V8 EFI | Defender, 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: ERR743 - Spark Plug RN9YC
ERR743 is a Spark Plug RN9YC. Fitted to the ignition system of 2.5 litre petrol Defender engines and 3.5 and 3.9 litre V8 EFI Range Rover Classic engines. It provides the spark required to ignite the fuel-air mixture in the engine's cylinders and should be checked as part of routine ignition system inspections.
Compatibility
- Defender (1987-2006) - 2.5 Petrol
- Range Rover Classic (1992-1994) - V8 EFI (From VIN JA610294)
Frequently Asked Questions
ERR743 is a replacement spark plug (RN9YC) for the specified engines. It delivers the electrical spark that ignites the fuel-air mixture in each cylinder; inspect and replace if the plug is fouled, damaged or worn to maintain reliable ignition.
| Model | Variant |
|---|---|
| Land Rover Defender (1987-2006) | 2.5L Petrol (Distributor, Leads, Coil & Plugs) |
| Land Rover Range Rover Classic (1992-1994) | V8 EFI Petrol (From VIN JA610294) |
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 spark plugs at routine service intervals and replace according to the vehicle manufacturer's schedule or sooner if the plug is fouled, damaged or shows excessive wear; consult the owner's manual or a qualified technician for specific intervals.
- 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.