Land Rover Part Number: ESR4686 - Fuel Filter - Td5 ESR4686 is a fuel filter for Td5 engines. Fitted inline on vehicles with the Td5 diesel, it removes particulates and separates water from the fuel supply to protect the injection system. Please note: This filter does not include the water sensor; reuse the existing sensor from the old filter or replace it with part number WKW500070. Compatibility Defender (1987-2006) - Td5 (From VIN XA159807 to VIN YA600724) Defender (1987-2006) - Td5 (From VIN 1A600725 to 2006) Discovery 2 (1999-2004) - Td5 Frequently Asked Questions What does ESR4686 do? ESR4686 filters fuel on vehicles fitted with the Td5 diesel, removing particulates and separating water from the fuel to help protect the injection components. The unit does not include the water sensor, so the existing sensor should be reused or replaced with part number WKW500070 if required. Which Land Rover models does the ESR4686 Fuel Filter fit? ModelVariant Land Rover Defender (1987-2006)Td5 - From VIN XA159807 to VIN YA600724 Land Rover Defender (1987-2006)Td5 - From VIN 1A600725 to 2006 Land Rover Discovery 2 (1999-2004)Td5 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. When should I replace the ESR4686 Fuel Filter? Inspect the fuel filter during routine services and replace it according to the vehicle manufacturer's maintenance schedule. If water or visible contamination is present in the filter bowl, replace the filter immediately. What do the C8, L8 and Z8 suffixes mean? C8 products are usually supplied by Britpart.L8 products are genuine Land Rover parts.Z8 products are normally supplied by Allmakes.