ISR Performance Light Weight Pulley Kit - Blue - SR20DET S13

The blue version of the ISR Performance lightweight pulley kit for the S13 SR20DET gives you the same rotating weight reduction as the rest of the range, finished in blue anodizing that stands out against a black or bare aluminum engine. For a bay built around blue silicone hoses or a blue valve cover, this is the matching accessory pulley set.

Kit Overview

• Lightweight aluminum accessory pulley set for the S13 SR20DET.
• Blue anodized finish.
• Replaces the heavier factory accessory pulleys.

Why Lighter Pulleys

Accessory pulleys are part of the rotating mass tied to the crankshaft through the belts. Lighter pulleys mean less inertia for the engine to spin up, so revs climb a little quicker and a little less power is lost driving the accessories. The anodized aluminum also resists the surface rust that creeps onto old factory steel pulleys.

Fitment

Nissan SR20DET S13 engines, including S13 red top and black top SR swaps in 240SX chassis.

Install

With the belts removed, swap each pulley onto its accessory, check that the new pulleys sit true and in line with the crank pulley, then reinstall and tension the belts. Doing this at the same time as an ISR underdrive crank pulley saves pulling the belts twice; just plan on sourcing shorter belts for the underdrive pulley.

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