SKU: AMP-ENG-200V2
ALTA 02-06 Mini Cooper S/JCW & 02-08 S/JCW Convertible R53 15% SuperCharger Pulley
This ALTA supercharger pulley has a 15% smaller diameter that increases boost pressure by about 2 PSI across the entire RPM range on supercharged R53 Minis. It fits 2002-2006 Mini Cooper S and JCW hatchback models plus 2005-2008 Mini Cooper S and JCW convertible models. Gain strong power increases through this direct bolt-on part with no other modifications required.
Key Features
- 15% Smaller Diameter: Raises boost by approximately 2 PSI for quicker acceleration and higher horsepower without engine strain.
- Billet 6061-T6 Aluminum: Lightweight at 4.8 ounces reduces rotational mass for sharper throttle response and durability.
- Hard Black Anodized Finish: Protects against corrosion heat and wear for lasting performance and sharp engine bay appearance.
- Includes Premium Belt: Custom ALTA belt matches exact tension needs for reliability under higher boost.
- Precision CNC Machined: Balanced construction prevents vibration for smooth supercharger operation at every speed.
Product Notes
- ECU remap advised to fully use added boost and safeguard engine parts.
- Supercharger must reach operating temperature before pulley removal to prevent damage.
- Ships in protective padded box measuring 6 x 4 x 2 inches with 0.65 lb shipping weight.
Installation Notes
- Professional installation recommended.
- Requires supercharger pulley puller tool like ALTA part APT-TOOL-001 or equivalent.
- Adjust belt tensioner to factory specs after install for reliable performance.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2006 | MINI | Cooper S | R53 |
| 2002-2006 | MINI | Cooper S JCW | R53 |
| 2005-2008 | MINI | Cooper S Convertible | R52 |
| 2005-2008 | MINI | Cooper S JCW Convertible | R52 |
Why Choose ALTA?
- Specializes in Mini Cooper performance parts with proven track and street results.
- All parts made in USA from premium materials for dependable daily power.
- Exact engineering matches OEM tolerances for seamless fit and long service life.
Frequently Asked Questions
- Q: Will this pulley fit JCW GP Kit models?
A: Yes it fits all supercharged R53 and R52 models including JCW and GP variants with stock supercharger nose pulley location. - Q: What material and finish does it use?
A: Machined from 6061-T6 billet aluminum with hard black anodizing for maximum durability and heat resistance. - Q: What warranty applies and is tuning required?
A: ALTA provides lifetime warranty against manufacturing defects tuning recommended for optimal power and safety.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Secure padded box 6 x 4 x 2 inches
- Weight: 0.30 lbs product 0.65 lbs shipping








