What is the main benefit of a lightweight water pump pulley?

A lightweight water pump pulley reduces the rotational mass of the engine. This means the engine doesn't have to work as hard to spin the pulley, leading to slightly improved throttle response and quicker revving.

What material is the Perrin water pump pulley made from?

This Perrin water pump pulley is constructed from lightweight aluminum. Aluminum is chosen for its lower weight compared to the factory steel or cast iron pulley.

Does this pulley come with a new water pump or any other hardware?

This product is for the lightweight water pump pulley only. It is designed to be a direct replacement for your vehicle's stock pulley, and typically uses the original hardware or requires specific installation instructions from Perrin.

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Specifications

Brand: Perrin Performance
Part #: PSP-ENG-111RD
UPC: PSP-ENG-111RD

PERRIN 15-21 Subaru WRX / 18-20 Crosstrek / 14-18 FXT Lightweight Water Pump Pulley - Red

Name: PERRIN 15-21 Subaru WRX / 18-20 Crosstrek / 14-18 FXT Lightweight Water Pump Pulley - Red
Brand: Perrin Performance
SKU: perrin-performance-perrin-15-21-subaru-wrx-18-20-crosstrek-14-18-fxt-lightweight-t14-4336794
Price: 104.55 USD
Availability: InStock

$104.55

Only 8 left in stock

Perrin Performance red lightweight water pump pulley for 2015-2021 Subaru WRX, 2018-2020 Crosstrek, and 2014-2018 Forester XT. Reduces rotational mass for improved engine response.

Key Features

Fits 2015-2021 Subaru WRX, 2018-2020 Crosstrek, and 2014-2018 Forester XT.
Made from lightweight aluminum to reduce rotational mass.
Helps improve engine response by allowing it to rev more freely.
Features a red anodized finish for improved aesthetics.
Direct replacement for the factory water pump pulley.

This pulley is designed to fit 2015-2021 Subaru WRX, 2018-2020 Crosstrek, and 2014-2018 Forester XT models. Please verify fitment for your specific vehicle.

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About this part

Product Details

This is the Perrin Performance lightweight water pump pulley in red, made for your 2015-2021 Subaru WRX, 2018-2020 Crosstrek, or 2014-2018 Forester XT. Swapping out the stock water pump pulley for a lighter one can make a small but noticeable difference in how quickly your engine revs. Because it has less mass to spin, the engine can accelerate a bit more freely.

Perrin makes these pulleys from well-built aluminum, which is significantly lighter than the factory steel or cast iron pulley. This reduction in rotational weight helps the engine feel a little more responsive, especially when you're accelerating or decelerating. It's a straightforward part to install, often done when you're already working on other engine bay components. The red finish also adds a nice visual touch under the hood.