The ERC8861G is a timing belt tensioner for Land Rover Defender models fitted with the 2.5-litre naturally aspirated or turbocharged diesel engine. The tensioner maintains correct belt tension on the timing belt, preventing slippage or excessive wear that can lead to timing failure and catastrophic engine damage. A worn or seized tensioner is a common cause of premature timing belt failure on these engines and should be inspected or replaced as part of any timing belt service. Key Features Designed to maintain correct timing belt tension on the 2.5 NA and Turbo Diesel engines Direct replacement component matching original fitment specification Supplied as a single unit - verify whether one or two tensioners are required for your specific engine configuration Replace alongside the timing belt, idler pulley, and coolant pump for a complete timing belt service Vehicle Fitment Fits Land Rover Defender (1986–2006) with 2.5-litre Naturally Aspirated Diesel and 2.5-litre Turbo Diesel engines. Not sure about fitment? Feel free to get in touch at [email protected]