SKU: 84425721479

M7 Speed MINI Cooper R53 Super Lightweight Crank Pulley | 4%

$143.95 $159.95
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

M7 Speed MINI Cooper R53 Super Lightweight Crank Pulley | 4%The M7 Speed 4% oversize speed increasing crankshaft pulley will add power, acceleration and performance to your MINI. Speeding up your supercharger safely adds "low end" boost and torque which gets your MINI Cooper going. Weighing in at a scant 13 ounces, (an amazing 88. 5% less than factory) the lightweight M7 Speed 4% Crank Pulley reduces crankshaft rotational mass which equals additional increased horsepower, torque and throttle response. Design

  • The M7 Speed 4% oversize - speed increasing crankshaft pulley will add power, acceleration and performance to your MINI. ‚ Speeding up your supercharger safely adds "low end" boost and torque which gets your MINI Cooper going. Weighing in at a scant 13 ounces, (an amazing 88.5% less than factory) the lightweight M7 Speed 4% 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% 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 13 ounces (0.3 kg)
    • Save 6.2 lbs (2.8 kg) from stock
    • Reduces damper weight by an‚ amazing 88.5%!
    • 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 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.

    PROUDLY MADE IN THE USA




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: 84425721479

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4.4 ★★★★★
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Verified Purchase
elisabeth
West Palm Beach, US
★★★★★ 5
They paid on the policy
I bought a four year replacement policy on my modem and two years into its lifespan it stopped working. I trouble shot with the company but we eventually determined it was dead. I contacted Asurion, they sent me a pre-paid address label, I mailed the defective modem, they found that it was dead and deposited a credit in the amount of the original purchase in my Amazon account, all within a few days. I am quite happy with the service. Just so you know, the reimbursement is through a gift card at Amazon which you can draw down against your purchases; it is not CASH.
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Reviewed in the United States on June 26, 2024
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Verified Purchase
KirbytheDiver
Chelsea, US
★★★★★ 5
Nearly 3 years later, Asurion had my back :)
In Nov of 2017 I bought a $900 35" Ultra wide PC monitor for Gaming and Work. It was made by a company called AOC/Envision and I bought it through amazon. The monitor had a 3 year warranty that I was still within but they said no to a defect that they said was only covered for 1 year, even though it wasn't the type of defect that was only covered for 1 year. LUCKILY, back in 2017 I had purchased an Asurion insurance policy with this monitor. I told an Asurion agent in a instant messaging chat window on the Asurion website my problem and she sent me postage in an email. I shipped my product and in 5 days from shipping it I received a text telling me that it was beyond repair and I would be getting a FULL REFUND! Not 2hr later, in an email, there it was, an amazon gift card code for $900 I will not be making any big purchases without an Asurion plan going forward. Happy customer Don't buy anything AOC
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Reviewed in the United States on October 16, 2020
E
Verified Purchase
Ed M
Massapequa, US
★★★★★ 4
Received a refund
I purchased the 4-year protection plan offered at the time I purchased a refurbished printer. Seven months later the printer failed, so I went searching through my Amazon orders for my protection plan and located it. Once I created an account on Asurion's website it showed the the plan but it was not attached to a specific purchase, so I had to locate and upload the invoice for my printer. Once that was done, the policy still wasn't linked for some unknown reason. I proceeded to start the claim anyway stating that my printer had failed and I received an immediate reply stating that a box would be shipped to me for me to return the printer for inspection/repair. After a week I hadn't seen any additional info so I called their support phone #. The service was very good and they had to create a new case to replace the one I started online, and they assured me that a shipping box would be sent. About a week later I did receive the box with a prepaid shipping label to return the item by UPS. I packaged the printer up and sent it off. I received updates stating that they received it, were looking at it and attempting repairs. Everything appeared to be going along well, then out of the blue they sent me a notification of a full refund in the form of an Amazon gift card. Overall I'm satisfied and I'm glad I purchased the coverage.
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Reviewed in the United States on October 6, 2022
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Cjohn
Birmingham, US
★★★★★ 5
Get this INSURANCE A MUST!!!
The best company top tier add it to your purchase !!!!
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Reviewed in the United States on July 21, 2025
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Verified Purchase
Virginia H.
Charlottesville, US
★★★★★ 1
Worst Experience of my Life
My Epson printer had problems with it's software in early mid April, while trying to resolve the software glitch which I could not, I found that every picture I had scanned for some time had lines running through it and no cleaning process or other process that Epson had would get rid of it, and everything I had scanned for my project, was ruined. I sent the machine to Asurion following their instructions and explaining the issues. They sent it back to me after a month saying they had double checked and fixed everything, I spent some time setting it all back up, only to find that exactly the same two issues were still present and the machine was unusable. I sent in a second request, this time they sent it back to me a month later saying they couldn't find anything wrong with it. Hooked it up again, same problem. I complained numerous times asked for them to warranty the item; they would not unless I sent it back to them and they kept it and then they would give me a credit on my amazon account to buy a new one. I packed it up and drove to UPS a third time and mailed it back to them, after about three weeks they sent me a note that they had it and that they were sending it back to me as they couldn't find anything wrong. Three times I ha filled out their entire sheet with product, date of purchase, problems detailed, receipts, picture of the lines in the photos that it was making over all the scanned photos. Then after two weeks of back and forth they sent me a message telling me they couldn't warranty it until I filled all this information out again on line. Then they told me they couldn't read the tiny print off the receipt printed off the Amazon site, which I cannot change. I then blew up the receipts and circled everything and sent it back to them again...of course they already had now five copies of this same information, they had paid for postage three times to NY and back to fix it and they still aren't able to process a payment to me????? Finally I get a call from a gentleman telling me that I will have a credit to my Amazon Card in 72 hours. Great. Then he calls me back the next day and says the warranty team has decided they would not warranty the item and credit me but they will mail me a check in 7 to 10 days. After over four months of this I received a check...will it bounce? I don't know yet. My project that I was working on was for my mother's Celebration of Life, I could not do what I wanted to do for her, this caused me emotional pain, as well as the obvious frustration of four months of aggravation and complete and total ineptitude on their part.
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Reviewed in the United States on August 10, 2024

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