SKU: 84425721479

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

Sale price$143.95 Regular price$159.95
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 2081 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
R
Verified Purchase
Rosemarie
Houston, US
★★★★★ 5
Makes my skin feel firmer
I bought this and the Prequel SPF, my first time using this product line. Definitely impressed and in my opinion, a great price for what seems like a quality product. The serum has a lightweight texture,, absorbs quickly, and my skin looks and feels well hydrated right away. More so than when I use a regular hyaluronic acid. There is no pilling or heavy feel so easy to use with other products. I can't say whether it improves skin texture over time or what the benefits are with continued use. I've been using it consistently with the SPF for the last two weeks, so it only been a short while. But when I put it on, my skin noticeably looks more springy and feels better throughout the day. I have mature, dry skin so I do use a moisturizer over this before sun protection. I imagine that if you have oily or normal skin you might be able to use this in place of moisturizer during the day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 27, 2025
L
Verified Purchase
L.M.
New York, US
★★★★★ 5
Plump, Soft Skin with a Smooth Finish
I’ve really been enjoying the Prequel Skin Multi‑Quench Plumping Hydration Serum. It gives my skin a soft, hydrated feel without any heaviness, and it absorbs quickly so it never interferes with the rest of my routine. One of the best parts is how smoothly my makeup applies afterward—everything blends better and looks more even. Overall, it’s a lightweight, effective serum that adds the perfect boost of hydration.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
A
Verified Purchase
Amos Cookie
Lowell, US
★★★★★ 5
New favorite moisture serum
I am blown away by this formula - it goes on silky and absorbs into the skin, giving it a plump, hydrated glow without ANY stickiness or annoying shine. Two pumps after cleansing and toner is just right but you can also go in heavier and use in place of a moisturizer. This truly gives me lasting moisture, which is amazing for a light to mid-weight serum. Wears great with other complexion products and under makeup. The glass bottle is luxe and the pump isn't the least bit messy. Glycerin is all the rage in terms of "hot" ingredients right now - and I have to say after using this, I'm a believer. I've pretty much replaced a classic daily moisturizer with pairing this serum before Strata Lipid Gold (another holy grail) - which works great under my moisturizing Japanese sunscreen (Canmake Mermaid Skin). These steps provide a flawless, juicy base under makeup for my maturing (43-year old) skin. Can't wait to try more products in this line.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2024
N
Verified Purchase
Nicolle Castro
Los Angeles, US
★★★★★ 4
Good
Moisturizing and gel like. It pills when used with the Prequel mineral SPF.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 5
LOVE
I love this stuff, doesn't irritate my skin and one pump goes a long way. I like to apply it right out of the shower with some rose hydrosol so my skin can soak it right up. Has a great plumping effect and doesn't irritate sensitive eye or lip areas. The glass bottle is a must for me and the pump is a nice added bonus. Also nice that it is made in the US. No strong scents or any fragrance, lasts me a long time too so the price isn't too bad. I'm new to this brand but am absolutely loving it so far! If Prequel is reading this, PLEASE start using aluminum or glass pump bottles for your face cleansers and offer cheaper refills in packets- I'm sure there are plenty of people who would be willing to pay a bit more for the bottle and then less for a refill. Maybe the cost would even out? I love being able to keep your glass bottles and I hate having to throw out these plastic bottles. Just a thought...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026

recommand products