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M7 Speed 4 Percent Crank Pulley Includes ARP Bolt and Washer Mini R53 JCW 02-06

$167.00 Sale:$146.96

M7 Speed

Model #53-3M7101-4

Shopper Award

This beautiful design is a result of advanced computer modeling and high precision CNC machining. Made in the USA from billet 6061-T6 aerospace grade aluminum alloy and finished with a deep black anodized coating and laser etching, the M7 Speed oversize - speed increasing pulley will add power and performance to your MINI. The Micro V-Belt grooves are machined to exacting SAE J1459 specifications for minimum belt slippage at maximum boost. Weighing in at a scant 12 ounces, the lightweight M7 Speed 2% Crank Pulley assists in reducing rotational mass, which equals increased horsepower, torque and throttle response. Use this in combination with the M7 Speed 16% Supercharger Technology Pulley for maximum performance and boost yourself to the next level of MINI tuning and performance.

Just redesigned for 2014, the M7 Speed crank pulley is engineered with an interference fit onto the crankshaft eliminating pulley slippage on the crankshaft. From the factory, the Mini suffers from no positive drive key on the crankshaft snout to drive the lower pulley. The factory pulley is press fit onto the crank. All aftermarket pulleys are slip fit at best and rely on the bolt to provide adequate clamp force to prevent the pulley from slipping. Well, the bolt cannot do that and all aftermarket pulley slip...reducing supercharger RPM and killing power.

Simple to install. Heat the pulley to 275/300oF (135/150oC) in your kitchen oven or using a small propane torch and heat gun and the pulley will drop straight onto the crank. When it cools it will be super tight onto the crank. Finish the installation with the supplied ARP bolt and precision flat washer and presto...more power, more reliability and more overall performance for your supercharged MINI Cooper.


  • Lightweight 13 ounces | 0.80 lbs
  • Perfectly in balance achieved by symmetric design and high precision machining
  • Industry exclusive interference thermal fit to eliminate high RPM slippage on the crankshaft
  • Supplied with a brand new high quality ARP bolt and precision ground flat washer
  • Micro V-Belt grooves are machined to exacting SAE J1459 specifications
  • Made in USA
Install Instructions:Fitment:
  • Mini R53 JCW 2002-2006
  • Pictures are used for marketing purposes only, actual product may vary.

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm

Vehicle Engine Notes
Mini Cooper

What is M7 Speed?

M7 Speed is the premier and largest aftermarket MINI Cooper performance parts manufacturer across the globe. Founded by Southern California car enthusiast Peter Horvath in 2002, M7 is now located in the heart of the U.S. motor sport scene in Mooresville, North Carolina. Under the direction of Mark Catania, a formally trained mechanical engineer, M7 Speed has prospered.

Catania brings 25 years of professional racing experience, including roles as a race engineer, crew chief, engineering manager, and R&D director for some of the biggest names in NASCAR Sprint Cup racing. M7 tuning continues to lead the way forward with many new state-of-the-art high performance engine, body, and suspension components.

They incorporate the latest tools when developing their products, including sophisticated laser surface scanning, digital measuring, and solid model design. Product manufacturing is being shifted to local suppliers who can offer the latest processes, materials, and world class quality. Today over 90% of M7 tuning MINI aftermarket products are proudly made in the USA, with the goal being 100% American-Made in the not too distant future.

The M7 Speed Vision

M7 is committed to providing industry leading innovation, design, customer service, and technical support. The company's employees not only have a commitment to state-of-the-art MINI Cooper aftermarket parts, they are also dedicated to high ethical standards.

M7 Speed considers themselves to be an intricate part of the MINI community, including involvement with MINI-only events, MINI car club shows, social media sites, their exclusive M7 Ambassador program, and more. They don't just talk MINI at M7—they live it. M7 is striving to be the ultimate MINI performance company on the planet, and it shows!

M7 Speed Innovation

Because of M7 Speed's dedication to technology, innovation, and engineering, all design, development, and testing takes place in-house. With several race tracks within a few hours from M7, full day test events are a regular thing with the company's R&D. Each innovative design is proven to meet the strictest standards before it ever reaches a MINI enthusiasts hands. M7 tuning includes engine upgrades, suspension upgrades, and ultimate MINI street car builds that are engineered, tested, and tweaked before they make the M7 cut.

Find M7 Speed at Vivid Racing

If you're ready to change the way your MINI Cooper looks, feels, and performs, look no further than Vivid Racing and M7 tuning. If M7 can help the IMSA MINI Cooper Factory Racing Team, LAP Motorsports, prepare a car for the 2016 Sonora Mexico Rally, imagine what they can do for your ride!

Vivid Racing is proud to carry an extensive inventory of M7 Speed tuning parts, including cool air intakes, lift kits, turbo parts, body kit and performance packages, and so much more! If you cannot find a specific part above or have any questions, please contact our expert sales team at (480) 966-3040.

For warranty information go here:
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Product Added At Friday 05 December, 2014
Product Modified At Tuesday 21 December, 2021
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M7 Speed $103.54 $167.00 ? $146.96 ? 2021-12-21 10:49:49

M7 Speed

Contact: Mark Catania

Phone: (888) 438-5767



149 Byers Creek Rd Unit 103
Mooresville, NC 27530-7198

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