J Replace OE Replacement SR20DET Revised Timing Chain Guide (Long)

This J Replace OE replacement SR20DET revised timing chain guide is the long guide for the SR20DET chain drive, supplied in the revised design. Along with the slack side guide and the tensioner, it controls the chain path between the crank and cam sprockets, and a guide with a worn or cracked face lets the chain whip and rattle.

Product Facts

• OE replacement long timing chain guide for the SR20DET
• Revised design
• Restores quiet, controlled chain travel

Fitment

Nissan SR20DET engines, as found in the S13, S14 and S15 Silvia and 180SX and swapped into the USDM 240SX.

Why Guides Fail

Chain guides use a plastic wear face over a metal backbone. Heat cycles and age embrittle the plastic, and a loose or stretched chain hammers it until it grooves, chips or separates. Debris from a failed guide ends up in the oil, and if the chain jumps a tooth the valve timing goes with it. Replacing the guides during any timing chain service is cheap insurance against that outcome.

Related Parts

Complete the refresh with the J Replace SR20DET timing chain, timing chain tensioner and gasket, and slack side timing chain guide. All of these are accessible once the front cover is removed, so it makes sense to replace them together.

Install Note

Torque the guide bolts to spec and confirm the chain runs centered on the guide face before installing the tensioner and refitting the front cover with fresh sealant.

With limited availability and frequently increasing prices on new OEM parts, J Replace offers a quality alternative at a steady price.

Note: Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways, and also for use in other exempted vehicles.