ISR Performance Light Weight Pulley Kit - Silver - SR20DET S13

The ISR Performance lightweight pulley kit in silver for the S13 SR20DET replaces the three steel accessory pulleys with anodized aluminum pieces. It is a straightforward way to cut rotating mass from the front of the engine while giving the bay a cleaner, show-ready look.

What the Kit Replaces

• Alternator pulley
• Water pump pulley
• Power steering pulley

Benefits

• Lighter weight than the stock pulleys, reducing rotating mass and freeing up horsepower.
• Silver anodized finish for a bright, show-quality appearance.
• Aluminum construction that resists corrosion better than bare steel factory pulleys.

Fits

Nissan SR20DET S13 engines, including S13 red top and black top variants in swapped 240SX chassis. Also offered in red, blue and gold anodizing if you prefer a color accent over silver.

Fitting the Kit

Remove the accessory belts, swap each pulley onto its respective component, and reinstall the belts. Check that each new pulley sits flush and runs in line with the crank pulley before tensioning. A good time to do this is alongside an ISR underdrive crank pulley, since the belts will already be off.

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