This timing chain slack‑side curved guide 13091‑2J202 is a vulnerable timing‑system component for Nissan SR20DE / SR20DET 2.0L turbo gasoline engine. Installed on slack side of timing chain, it limits lateral swing of timing chain, absorbs vibration impact and lowers friction loss during engine running, keeps timing chain running in correct track. Aftermarket replacement for Nissan Silvia S13, S14, S15 and 200SX from 1989‑2002。
Adopts steel‑back reinforced nylon composite construction. Metal skeleton guarantees mounting rigidity, high‑wear‑resistant nylon sliding surface bears long‑term friction contact with timing chain, performs well under high‑temperature and engine‑oil corrosion environment. Precision‑drilled mounting holes fully match original installation points.
Common failure symptoms: timing chain rattling noise from engine front cover, heavy surface abrasion, guide rail cracking, increases risk of timing‑chain jump. Usually 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 SR20DE / SR20DET engine timing maintenance.
