Crank Pulley, Light weight R53 for Supercharged Engine
Crank Pulley, Light weight R53 for Supercharged Engine
Crank Pulley, Light weight R53 for Supercharged Engine
SKU: AMP-ENG-500

Crank Pulley, Lightweight R53 for Supercharged Engine

Sale price$129.20 Regular price$152.00
IN-STOCK
Size:0%
The ALTA Lightweight Crank Pulley increases horsepower and reliability with a stronger one piece design. Choose 0% for OEM boost or +2% for added supercharger performance.

PROPOSITION 65

Proposition 65 Warning

WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands.

For more information see: www.P65Warnings.ca.gov/motor-vehicle-parts

OFF ROAD USE ONLY

This product is legal in California only for racing vehicles which may never be used upon a highway. Check your local and federal laws prior to installation.

ESTIMATED DIY INSTALL TIME:
120 MINUTES
EMAIL OUR TECH DEPARTMENT:

Download Instructions

Specs & In The Box

Specifications

  • Material 6061 Billet Aluminum
  • Finish Black Anodizing
  • 0% Weight .90 lbs.
  • 2% Weight 1.0 lbs.

In The Box

Warranty

5 YEAR WARRANTY

Compatibility

Returns

We stand behind every order. Returning something should be easy.

Refund & Returns 

We offer free returns on all eligible domestic orders within 30 calendar days of delivery. Here is what that looks like:

  • Free return shipping : a prepaid label is issued through our online returns portal. No cost to you.
  • No restocking fees : unopened items in original packaging are refunded in full.
  • Store credit for installed or used parts : full store credit issued, no restocking fee.
  • Customer-damaged parts : a 50% damage fee is assessed; the remainder is issued as store credit.

How to Start a Return

You can submit a return request directly through your account on our store:

  1. Visit our How to Start a Return page, or go directly to account.perrin.com, then continue with the steps below.
  2. Sign in by entering your email address and clicking Continue.
  3. Check your email for a six-digit verification code from our store and enter it on the sign-in page.
  4. Find the order you want to return and click Request return. 
  5. If your order has multiple items, select the items you are returning.
  6. Choose a return reason and add any notes, then click Request return.

Once your return request is approved, you will receive an email with a prepaid return shipping label and instructions. After the item is received, your refund or store credit will be processed.

Need help? Email us at sales@altaperformance.com or call 503-693-1702 during business hours.

Items That Cannot Be Returned

The following are not eligible for return or exchange:

  • Electrical parts
  • COBB AccessPORTs
  • CSF Radiators
  • Special order items, including sub-parts, hardware, hoses, and fittings

A Few Things to Know

The following are not eligible for return or exchange:

  • Hardware and accessories:  Items must be returned with all hardware, accessories, and equipment included at purchase or a damage fee will be assessed.
  • Original shipping costs:  Outbound shipping fees are not refunded in any case.
  • PayPal payments:  Refunds on PayPal orders will exclude the processing fee assessed by PayPal.

Refund Timeline

Once your return is received and inspected, refunds are issued by check, credit card, or account credit at our discretion. Please allow up to 12–14 working days for a credit card refund to appear on your statement.

 

Did your package arrive damaged or missing parts?

Shortage and damage claims must be made within 5 working days of the receipt date. All claims for damaged merchandise must be made with the carrier. Keep all shipping cartons and packing materials for carrier inspection. ASMC LTD. will not initiate any claims with the carrier. All approved refunds will be paid by either check, credit card, or account credit, to be determined by ASMC LTD.

Crank Pulley, Light weight R53 for Supercharged Engine

Performance

The ALTA Lightweight Crank Pulley increases horsepower and torque by reducing rotational mass. The 0% Stock Size version maintains factory diameter while delivering faster engine response with no added vibration, bearing stress, or charging issues. The +2% Overdrive version offers the same lightweight benefits but increases crank diameter. On supercharged models, this spins the supercharger faster for safely increased boost and performance.

Construction

Machined from high strength 6061 T6 aluminum, the ALTA Lightweight Crank Pulley is engineered for strength, durability, and reduced rotational mass. The 0% pulley weighs 0.90 lbs, while the +2% Overdrive version weighs 1.0 lb. Unlike the factory two-piece pulley design, which is known to separate and cause tensioner damage, the ALTA one piece construction eliminates this common failure point for improved long-term reliability.

Crank Pulley, Light weight R53 for Supercharged Engine

Two Size Options

The 0% Stock Size pulley maintains factory crank diameter, making it ideal for drivers who want improved response and reliability while keeping OEM boost levels. The +2% Overdrive pulley slightly increases crank diameter to spin the supercharger faster. This effectively increases boost, turning a 15% pulley into a 17%, and a 17% into a 19%. The larger diameter also improves belt wrap, helping reduce slip and decrease belt wear under load.

Straight From Our Customers