LHA000030 - Land Rover Kit-chain drive

Land Rover Td5 Timing Chain & Sprocket Kit – LHA000030 (Defender & Discovery 2)

LHA000030 is the complete timing chain and sprocket drive kit used on the Land Rover 2.5L Td5 5‑cylinder turbo‑diesel engine. The kit includes the primary timing chain, camshaft sprocket, and crankshaft sprocket, forming the matched drive set that maintains accurate valve timing through the engine’s timing chest.

Designed for Defender Td5 (from VIN 2A622424) and Discovery 2 Td5 (from VIN 2A736340), this kit synchronises crankshaft rotation with camshaft operation, ensuring correct fuel injection timing and valve actuation. Chain stretch and sprocket wear are known Td5 ageing characteristics, and Land Rover specifies replacement of chain and sprockets together to restore correct tooth profile engagement and eliminate timing slack risk.

Genuine kits feature a simplex roller chain, hardened steel sprockets and precise machine tolerances to maintain timing stability under load. The components are critical to maintaining Td5 reliability, preventing rough running, starting difficulties, and the potential for catastrophic timing failure from a worn chain skipping teeth. Replacement is typically performed during major top‑end work or at high mileage intervals.

LHA000030 supersedes earlier Td5 chain drive part numbers including ERR6885 and LXB100090, reflecting Land Rover’s consolidated chain‑drive update.