ISR Performance OE Replacement Intake Valve Stem Seals - RWD SR20DET

ISR Performance's OE replacement intake valve stem seals for the Nissan RWD SR20DET are sold individually, so you can order exactly the count your head work needs. The intake side seals keep oil from the valvetrain from being drawn down the valve guides into the ports, and when they harden the engine starts burning oil, especially on startup after sitting.

How to tell the seals are tired

A puff of blue smoke on cold start, oil consumption with no external leaks, and fouled plugs on an otherwise healthy SR20DET usually point to the stem seals. Because intake ports run under vacuum, the intake side seals tend to pass oil first.

Seal details

• OE replacement specification for the SR20DET intake valve guides
• Sold individually
• Produced by ISR Performance within its OE replacement gasket and seal program
• Included as a set in the ISR complete S13 SR20DET gasket kit

Fits

Nissan RWD SR20DET cylinder heads, intake side. The SR20DET has eight intake valves, so order accordingly. ISR offers the exhaust side seals separately.

Install notes

Use a proper valve stem seal installer to seat each seal squarely without tearing the lip, and pair the job with new exhaust seals while the valves are out.

All ISR Performance products are designed for off-road use only.