This timing chain tension guide 13085‑EA210 is an individual wear‑prone timing system component for Nissan VQ40DE 4.0L V6 gasoline engine. Installed on tension side lower position of timing chain, it restrains chain swing, reduces vibration impact and friction wear during engine running, keep timing chain running in correct track. It is aftermarket replacement for Nissan Xterra, Frontier, Pathfinder and NV series full‑size van from 2005‑2021.
Adopts steel‑back reinforced nylon composite material. Metal skeleton guarantees mounting rigidity; high‑wear‑resistant nylon sliding surface bears long‑term friction contact with timing chain, anti‑high‑temperature and anti‑oil corrosion. Precision‑drilled mounting holes consistent with original installation position.
Common failure symptoms: timing chain abnormal rattling noise, guide rail surface abrasion, rail cracking, aggravate timing chain jumping risk. It is often replaced together with timing chain, tensioner and other timing components during engine overhaul. Every guide rail passes dimension inspection before shipment, no modification required for installation. Important single spare‑part for VQ40DE engine timing maintenance.
