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Crankshaft Pulleys & Harmonic Balancers

Keep your drive belt system in check by replacing your BMW's crankshaft pulleys and harmonic balancers.
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Vargas N54/55 Billet Crank Seal Guard - BMW N54 N55 3.0L
Vargas N54/55 Billet Crank Seal Guard - BMW N54 N55 3.0L
Vargas Turbo Technologies - Corporate Logo
T#:638889
Part#: VTT-CRANKGUARD
In Stock
Starting at $ 89.99 USD
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Starting at $ 89.99 USD
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It is a well-known issue on the BMW N54/55 platforms that your serpentine belt can fail for various reasons. When this happens, there is a high chance of the belt getting sucked behind the front damper pulley and then being pushed past the crank seal into your oil pan. From there it can get sucked into the oil pick up causing total engine failure. Even if you do not lose the engine, it is a COSTLY repair to remove the sub-frame and drop the oil pan to remove the belt. The best way to combat this is to watch for oil leaks and keep up on your maintenance. BUT, even with those preventative measures, pre-mature belt failure can occur. This crank seal guard installs over your front crank seal and will keep the belt from being sucked in if a belt failure does occur. This is a cheap way to ensure you do not end up having to replace your motor from oil starvation due to an ingested belt. Vargas' seal is different from those already on market in two major ways. Firstly, it is not offensively priced. Secondly, it is 100% billet with no welds on the tabs to break, no cheap bent thin steel pieces. 100% Billet 6061-T6 aluminum, anodized black for long-term corrosion resistance. Crank Seal Guard includes: One VTT Billet N54/55 Crank Seal Guard Two extended 12.9 Grade bolts, and two stainless washers We highly recommend you install WITH a crank bolt capture at the same time, as you have to remove the damper anyway. Then you will get the benefit of helping eliminate the dreaded spun crank hub and the crank seal issue
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ALTA Crank Pulley - 2% - R52 R53
ALTA Crank Pulley - 2% - R52 R53
Alta Performance - Corporate Logo
T#:26238480
Part#: AMPENG520
In Stock at Vendor
Sale - Save 11% $ 129.99

This product was last offered at the strikethrough price on
07-17-2026

$ 116.28 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 11%
$ 129.99

This product was last offered at the strikethrough price on
07-17-2026

$ 116.28 USD
Free Shipping on orders $49 and up
Add to Wish List

Enhance the performance of your Mini with the ALTA Lightened Crank Pulley (LCP), engineered to increase horsepower and torque. Available in 0% Stock Sized and +2% Oversized options, this pulley is crafted from 6061T6 aluminum, weighing only 0.65 lbs. Significantly lighter than the stock crank pulley, the ALTA LCP ensures improved engine efficiency without adding vibration or noise. The +2% Oversized pulley provides additional boost for Supercharged Cooper S models, delivering safe and reliable performance. With increased belt contact, this pulley reduces wear and enhances durability, making it a must-have upgrade for Mini enthusiasts.

  • Increases horsepower and torque
  • Lightweight 6061T6 aluminum construction
  • Available in 0% Stock Sized and +2% Oversized options
  • Does not affect charging system
  • Improves engine efficiency and performance
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ALTA Crank Pulley - 0% (Stock Size) MINI W11 1.6L Engine
ALTA Crank Pulley - 0% (Stock Size) MINI W11 1.6L Engine
Alta Performance - Corporate Logo
T#:394899
Part#: AMPENG500
In Stock at Vendor
Sale - Save 11% $ 129.99

This product was last offered at the strikethrough price on
07-17-2026

$ 116.28 USD
Free Shipping
Add to Wish List
Sale - Save 11%
$ 129.99

This product was last offered at the strikethrough price on
07-17-2026

$ 116.28 USD
Free Shipping
Add to Wish List

ALTA Lightweight Crank Pulley (LCP) for Mini

Upgrade your Mini's performance with the ALTA Lightweight Crank Pulley (LCP), designed to increase horsepower and torque. Available in two sizes - 0% Stock Sized and +2% Oversized - this pulley is engineered for Supercharged Cooper S models. Crafted from 6061T6 aluminum, the ALTA pulley is lightweight, weighing just 0.65 lbs, providing a weight reduction of over 2.3 lbs compared to the stock crank pulley.

  • Increases horsepower and torque
  • Lightweight design reduces rotational mass
  • Does not wear out engine bearings or oil pump
  • Adds boost safely and reliably
  • Improves belt contact with pulleys, reducing wear
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