SKU: 61522605645

M7 Speed R53 MINI Cooper Lightweight Crankshaft Pulley - Standard Diameter

Sale price$169.16 Regular price$187.95
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

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Description

M7 Speed R53 MINI Cooper Lightweight Crankshaft Pulley - Standard DiameterThe M7 Speed lightweight crankshaft pulley will add power, acceleration and performance to your MINI. The lightweight crank pulley reduces crankshaft rotational mass which equals additional increased horsepower, torque and throttle response. Design 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

The M7 Speed lightweight crankshaft pulley will add power, acceleration and performance to your MINI. The lightweight crank pulley reduces crankshaft rotational mass which equals additional increased horsepower, torque and throttle response.

Design

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 Micro V-Belt grooves are machined to exacting SAE J1459 specifications for minimum belt slippage at maximum boost. Use this in combination with the M7 Speed 16 percent Supercharger Technology Pulley for maximum performance and boost yourself to the next level of MINI tuning and performance.

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.

The M7 Speed crank pulley is engineered with an interference fit onto the crankshaft eliminating pulley slippage on the crankshaft.

Features

  • Super Lightweight. Weighs in at 17 ounces (0.5 kg)
  • Save 6.2 lbs (2.8 kg) from stock
  • Reduces damper weight by an amazing 88.5 percent!
  • Prefect balance is 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 Racing bolt and precision ground flat washer
  • Micro V-Belt grooves are machined to exacting SAE J1459 specifications

Installation

Simple to install. Heat the pulley to 400 degreesF (205 degrees C) in your kitchen oven or using a small propane torch and the pulley will drop straight onto the crank.

When it cools it will shrink on to 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.

Made in the USA

Fitment Notes :
A larger 4 percent oversize speed increasing crank pulley will add just that little extra added supercharger boost and performance. 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 with a deep black anodize coating, the M7 Speed 4 percent oversize - speed increasing pulley will provide a lifetime of reliable use.

Weighing in at just 17 ounces and supplied with a brand new high strength ARP bolt and precision ground flat washer, the M7 Speed Super Light crank pulley is best in class.

Each M7 Speed product is Engineered....Tested....and Proven to Perform!

  • 02-06 Mini Cooper Hatchback 05-08 Mini Cooper Convertiable
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 61522605645

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Denise
West Palm Beach, US
★★★★★ 1
easily punctured by dog teeth & not durable
Size: Large Size 3, Color: World Cup
I have a medium size dog 25lbs. The tabs all came off within 4 days & deflated/punctured in the same amount of time this ball is not as sturdy as they say.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
S
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Sunshyne
Lake Worth, US
★★★★★ 4
Quality product but sold on Amazon cheaper with different seller.
Size: Medium Size 2, Color: White-Blue
The size is the reason for the missing star. Made of good quality but found cheaper from another buyer. My 9month Cane Corso hasn't destroyed it yet and enjoys playing keep away with the other dogs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 2, 2025
J
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Jenna
Draper, US
★★★★★ 5
absolutely must buy perfect for dogs. I have a large black lab and he has had so much fun with us.
Size: Large Size 3, Color: White-Blue
I have to say that my dog would be considered an aggressive tower. However, this ball has stayed intact. I love that it comes with the pump. It’s extremely functional very soft for catching can be cleaned. Very easy easy the quality is exceptional. Very functional does have a bounce. I can say he has had so much fun with this since it’s getting it for his birthday on 11/11 I highly recommend this product and would definitely buy again.
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Reviewed in the United States on November 23, 2025
K
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KLBlake
Louisville, US
★★★★★ 5
Perfect for keep-away
Size: Large Size 3, Color: Red-Blue
I purchased one of these for my pup and he has a ball throwing it up in the air and chasing it. Handy for something they can play with alone.
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Reviewed in the United States on May 24, 2026
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Yaidaliz
Omaha, US
★★★★★ 5
Great durable ball
One of my dog’s favorite toy. We have had this ball for almost a year and it is still intact. My Doberman loves it and has not been able to destroy it. The size is comparable to s tenis ball. It has a little weight to it witch makes it easy to trow further.
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Reviewed in the United States on May 21, 2026

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