Full double timing chain repair kit for Mercedes OM642.820 3.0L V6 turbo diesel engine. Contains dual timing chains, tensioner, guide rails and all mounting hardware. Fix cold start rattle, chain stretch, timing deviation and engine fault codes. High strength alloy steel, direct OEM replacement, reliable quality, competitive price and fast lead‑time for aftermarket overhaul.

Full Description This full complete double timing chain kit is designed for Mercedes‑Benz OM642.820 3.0‑liter V6 turbo‑charged diesel engine, widely installed on ML‑Class W164, GL‑Class X164, R‑Class W251, S‑Class W221 series vehicles. All chain parts adopt high‑strength alloy steel with precise heat‑treatment process, greatly improve wear‑resistance and anti‑fatigue performance, effectively solve common diesel engine failure including timing chain elongation, cold‑start abnormal rattling noise, timing angle drift, check engine light and poor power output.

Cross reference OEM numbers: A0009931076, A6420500211, A0009936376, A0009931776, A6420500311Alibaba. This is full overhaul set including double timing chains, timing tensioner, multiple guide rails and all necessary small installation accessories, customers do not need to purchase extra spare parts. 100% match original installation dimension, direct replacement for original factory components, perfect choice for repair shop and aftermarket maintenance. Our factory provides stable quality, favorable cost and short delivery cycle, supported with 12‑month warranty. Please double‑check engine code and OEM number before placing order to avoid incorrect purchase.

Fitment Mercedes‑Benz ML‑Class W164 ML320 CDI, ML350 CDI Mercedes‑Benz GL‑Class X164 GL320 CDI, GL350 CDI Mercedes‑Benz R‑Class W251 R320 CDI, R350 CDI Mercedes‑Benz S‑Class W221 S320 CDI, S350 CDI Engine Code: OM642.820 3.0L V6 Diesel

Kit Includes 2×Timing Chain(Double Chain) 1×Timing Tensioner 5×Timing Guide Rails Complete installation small fittings

Key Attributes ‑ Brand: ZUIKON ‑ Engine Code: OM642.820 ‑ Displacement:3.0L V6 Turbo Diesel ‑ OEM: A0009931076, A6420500211 ‑ Material: Alloy Steel ‑ Warranty: 12 Months ‑ Condition: 100% New