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SKU: AMP-ENG-500
ALTA 02-06 Mini Cooper S/JCW & 02-08 S/JCW Convertible R53 Lightened Crank Pulley 0%
ALTA lightened crank pulley replaces the heavy stock unit on R53 chassis Mini Cooper S models. It fits 2002-2006 hatchback S and JCW variants plus 2002-2008 convertible S and JCW models. Removing 2.1 lbs of rotational mass lets the supercharged engine accelerate quicker with crisper throttle response while 0% underdrive keeps accessory speeds at stock levels.
Key Features
- Weight Savings: Reduces pulley mass from stock 46 oz to 12.5 oz for 33.5 oz or 2.1 lb drop that frees up engine power.
- Material Construction: CNC machined from billet 6061-T6 aircraft grade aluminum for strength and light weight.
- Finish Quality: Black anodized surface provides corrosion resistance and long lasting appearance.
- Underdrive Ratio: 0% design matches stock outer diameter to prevent slower alternator water pump or power steering operation.
- Balance Engineering: Precision machined and balanced to reduce vibrations and ensure smooth high RPM operation.
Product Notes
- Direct bolt on replacement with no vehicle modifications needed.
- Inspect belt condition and tension after installation for best results.
- Ships in protective 6 x 6 x 4 inch box to prevent damage.
Installation Notes
- Professional installation recommended.
- BMW/Mini crank pulley holding tool 11 9 220 or equivalent required to secure crankshaft.
- Torque crank bolt to 400 Nm after pulley installation compatible with stock belt and tensioner.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2006 | Mini | Cooper S | |
| 2002-2006 | Mini | Cooper S | JCW |
| 2002-2008 | Mini | Cooper S Convertible | |
| 2002-2008 | Mini | Cooper S Convertible | JCW |
Why Choose ALTA?
- Trusted by Mini racers and track enthusiasts for reliable performance gains.
- Manufactured in USA with focus on quality materials and fitment.
- Engineered for W11 supercharged engines with dyno tested improvements.
Frequently Asked Questions
-
Q: Will this pulley fit both hatchback and convertible R53 models?
A: Yes it bolts directly onto 2002-2006 Mini Cooper S/JCW hatchbacks and 2002-2008 S/JCW convertibles with R53 chassis and W11 engine. -
Q: What material and finish does it use?
A: Built from CNC billet 6061-T6 aluminum with black anodized finish for durability and heat resistance. -
Q: What tools are needed for installation and is there a warranty?
A: Crank holding tool required professional install advised. Backed by ALTA lifetime warranty against manufacturing defects.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Secure foam protected box 6 x 6 x 4 inches
- Weight: Product 0.78 lbs shipping 2 lbs
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