Perrin Performance

Perrin Alternator Pulley - Black — Fits 2015-2022 Subaru WRX / 2014-2018 Forester XT

Perrin Alternator Pulley - Black — Fits 2015-2022 Subaru WRX / 2014-2018 Forester XT
Perrin Alternator Pulley - Black — Fits 2015-2022 Subaru WRX / 2014-2018 Forester XT
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Perrin Alternator Pulley - Black — Fits 2015-2022 Subaru WRX / 2014-2018 Forester XTPerrin Alternator Pulley - Black — Fits 2015-2022 Subaru WRX / 2014-2018 Forester XT
Perrin Performance

Perrin Alternator Pulley - Black — Fits 2015-2022 Subaru WRX / 2014-2018 Forester XT

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SKU: PERPSP-ENG-121BK
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About Perrin Performance Perrin Performance engineers high-quality automotive parts and ...Read More

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$58.00 $61.00
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches
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Product Details

Product Description
Part Numbers
Sizing & Fit

About Perrin Performance

Perrin Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Perrin Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Stealth Performance Upgrade for FA/FB Engines

Optimize the performance of your 2015-2022 Subaru WRX or 2014-2018 Forester XT with the Perrin Performance Black Alternator Pulley. This precision-machined aluminum pulley is designed to be lighter than the factory unit, reducing parasitic drag on your engine. The result is a noticeable improvement in throttle response and a subtle gain in horsepower, making your driving experience more engaging.

Features & Performance Benefits:

  • Lightweight Design: Reduces rotating mass for quicker engine revs.
  • Durable Black Anodized Finish: Provides a sleek, understated look and corrosion resistance.
  • Precision Machined: Ensures perfect balance and fitment.
  • Direct Replacement: Easy installation for 2015-2022 Subaru WRX and 2014-2018 Forester XT models.
  • Improved Engine Efficiency: Less strain on the engine leads to better power delivery.

The black finish offers a subtle, OEM-plus aesthetic that blends seamlessly into your engine bay while delivering tangible performance advantages. Upgrade your Subaru with confidence. Find this and more performance parts at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Perrin Performance

Perrin Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Perrin Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Stealth Performance Upgrade for FA/FB Engines

Optimize the performance of your 2015-2022 Subaru WRX or 2014-2018 Forester XT with the Perrin Performance Black Alternator Pulley. This precision-machined aluminum pulley is designed to be lighter than the factory unit, reducing parasitic drag on your engine. The result is a noticeable improvement in throttle response and a subtle gain in horsepower, making your driving experience more engaging.

Features & Performance Benefits:

  • Lightweight Design: Reduces rotating mass for quicker engine revs.
  • Durable Black Anodized Finish: Provides a sleek, understated look and corrosion resistance.
  • Precision Machined: Ensures perfect balance and fitment.
  • Direct Replacement: Easy installation for 2015-2022 Subaru WRX and 2014-2018 Forester XT models.
  • Improved Engine Efficiency: Less strain on the engine leads to better power delivery.

The black finish offers a subtle, OEM-plus aesthetic that blends seamlessly into your engine bay while delivering tangible performance advantages. Upgrade your Subaru with confidence. Find this and more performance parts at GGCRACING.

Product Details

Product Description

About Perrin Performance

Perrin Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Perrin Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Stealth Performance Upgrade for FA/FB Engines

Optimize the performance of your 2015-2022 Subaru WRX or 2014-2018 Forester XT with the Perrin Performance Black Alternator Pulley. This precision-machined aluminum pulley is designed to be lighter than the factory unit, reducing parasitic drag on your engine. The result is a noticeable improvement in throttle response and a subtle gain in horsepower, making your driving experience more engaging.

Features & Performance Benefits:

  • Lightweight Design: Reduces rotating mass for quicker engine revs.
  • Durable Black Anodized Finish: Provides a sleek, understated look and corrosion resistance.
  • Precision Machined: Ensures perfect balance and fitment.
  • Direct Replacement: Easy installation for 2015-2022 Subaru WRX and 2014-2018 Forester XT models.
  • Improved Engine Efficiency: Less strain on the engine leads to better power delivery.

The black finish offers a subtle, OEM-plus aesthetic that blends seamlessly into your engine bay while delivering tangible performance advantages. Upgrade your Subaru with confidence. Find this and more performance parts at GGCRACING.

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