ISR Performance Light Weight Pulley Kit - Red - SR20DET S13

Red is the color of choice for a lot of SR engine bays, and the ISR Performance lightweight pulley kit in red for the S13 SR20DET lets the accessory drive match. It swaps the heavy factory pulleys for lightweight aluminum pieces with a red anodized finish, trimming rotating mass while adding a visible accent at the front of the engine.

What You Get

• Lightweight aluminum accessory pulleys for the S13 SR20DET.
• Red anodized finish for a durable, show-quality look.
• Replaces the factory steel pulleys as a set.

Performance Angle

Every pulley on the accessory belt spins with the crank. Reducing their weight reduces the inertia the engine has to overcome each time it revs, which translates to a slightly quicker throttle response and marginally more power to the wheels. It is a small gain on its own, but combined with a lightweight crank pulley the difference in how the SR picks up revs is noticeable.

Fits

Nissan SR20DET S13 engines. The same kit is available in silver, blue and gold if red does not suit the build.

Fitting Notes

Pull the accessory belts, replace each pulley on its component, and refit the belts. Confirm alignment with the crank pulley and set proper tension. If you are also installing an underdrive crank pulley, remember that shorter belts will be needed.

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