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BMW Engine Parts

Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

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Macht Schnell - Corporate Logo
T#:593749
Part#: 10.00.011
In Stock
$ 349.00 USD
Free Shipping
$ 349.00 USD
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Free additional power to your M3’s rear wheels without sacrificing or compromising your BMW’s reliability. Machined from 6061-T6 aerospace aluminum, Macht Schnell Performance Underdrive Pulleys are strong as well as lightweight to limit parasitic drag from the accessories within a moderate level for maximum performance on or off the track. After machining and engraving, pulleys are then T3 hard anodized for additional strength, anti-corrosion & wear resistance. Our DualDrive design replaces the Crank Accessory & Power Steering Pulleys, resulting in an additional 9-14 HP and 7-9ft. lbs TQ gain for the M3. Gains are due to a reduction in power required to turn accessories; an increase in accessories lifespan due to lower speed will also result. All factory harmonics/balancing are undisturbed. Macht Schnell Performance Underdrive Pulleys have no negative effect on accessory operation and comes fully equipped with new belts. Already have this kit and need new belts? See T#14491 and T#14489 Performance Underdrive Pulleys Features: DualDrive design allows maximum performance, with minor effect on accessory speed Proper cooling temperatures are retained at proper levels on or off the track Maintains proper alternator speed, allowing sustained levels to sensitive control modules Machined from 6061-T6 aerospace aluminum T3 Hard-Anodized for maximum strength and corrosion/wear resistance No affects to crankshaft dampening or harmonics Simple bolt-on installation
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Alta Performance - Corporate Logo
T#:394899
Part#: AMPENG500
In Stock
$ 129.99 USD
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$ 129.99 USD
Free Shipping

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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Alta Performance - Corporate Logo
T#:26238480
Part#: AMPENG520
In Stock at Vendor
$ 129.99 USD
Free Shipping on orders $49 and up

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 Performance - Corporate Logo
T#:586220
Part#: AMPENG208
In Stock at Vendor
$ 93.99 USD
Free Shipping
$ 93.99 USD
Free Shipping

Crafted from machined 6061 billet aluminum, the ALTA Performance Pulley Removal Tool is specifically designed for the non-JCW MINI Cooper S, offering a convenient way to enhance power quickly and effortlessly, whether you're in a workshop or your backyard. This versatile tool ensures durability and can be utilized repeatedly with proper usage, maintenance, and care. An essential addition for MINI specialty shops, this tool is compatible with all OEM-sized pulleys, except for JCW variants. Note: A steering wheel puller is necessary for the removal of the stock supercharger pulley.

  • Crafted from machined 6061 billet aluminum
  • Designed for non-JCW MINI Cooper S
  • Durable for repeated use with proper care
  • Ideal for MINI specialty shops
  • Compatible with all OEM-sized pulleys (excluding JCW)
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Alta Performance - Corporate Logo
T#:15777319
Part#: AMPENG200V2
In Stock
$ 123.99 USD
Free Shipping on orders $49 and up

Enhance your Mini's performance with the ALTA Supercharger Pulley, crafted from lightweight 6061T6 aluminum. This pulley reduces the rotational inertia of the supercharger, significantly enhancing engine responsiveness. Featuring cross-drilled holes over each groove, it improves belt grip and minimizes belt slippage as the belt stretches. Additionally, oversized belt retainers prevent belt jumping.

ALTA offers two reduction sizes: 15% and 17%, each providing distinct benefits.

  • 15% Reduction: The standard choice in the market, delivering smooth power increases of approximately 20WHP for safe performance enhancements.
  • 17% Reduction: Ideal for those seeking more power, this option builds boost at lower RPMs, providing additional power where needed. It delivers an extra 1.5psi of boost at redline, ensuring added horsepower to conquer challenging situations.
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Alta Performance - Corporate Logo
T#:586157
Part#: AMPENG205V2
In Stock
$ 123.99 USD
Free Shipping
$ 123.99 USD
Free Shipping

Crafted from lightweight 6061T6 aluminum, the ALTA SC pulley body reduces the supercharger's rotational inertia, significantly enhancing your Mini's engine responsiveness. This innovative pulley design integrates cross-drilled holes to amplify belt grip and mitigate belt slippage, especially during belt stretching. Furthermore, it incorporates oversized belt retainers to prevent belts from jumping off. Available in two sizes—15% and 17% reductions—the 15% reduction option, a market standard, delivers safe power gains of around 20WHP, ensuring a smoother and enhanced performance.

Benefits:

  • Enhanced engine responsiveness
  • Improved belt grip and reduced slippage
  • Safe power increase of around 20WHP (15% reduction)
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Alta Performance - Corporate Logo
T#:27938418
Part#: AMPENG195BK
In Stock at Vendor
$ 99.99 USD
Free Shipping on orders $49 and up

MINI R52 R53 Adjustable Tensioner Stop - Black

Upgrade your Mini's engine with the MINI R52 R53 Adjustable Tensioner Stop - Black. Engineered for precision and durability, this tensioner stop allows for easy adjustment of belt tension, ensuring optimal performance. Say goodbye to belt slippage and enjoy improved engine reliability with this high-quality accessory.

  • Allows for easy adjustment of belt tension
  • Prevents belt slippage for improved engine reliability
  • Engineered for precision and durability
  • Enhances performance of your Mini's engine
  • Sleek black design adds a stylish touch
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Dr. VANOS - Corporate Logo
T#:3428562
Part#: 11361438694RKT
Ships in 1 Business Day
$ 525.99

This product was last offered at the strikethrough price on
04-15-2026

$ 466.00 USD
Free Shipping
$ 466.00 USD
Free Shipping


Optima - Corporate Logo
T#:26238452
Part#: OPT-35
Special Order: No Guaranteed ETA
$ 332.99 USD
$ 332.99 USD

Elevate your Mini's performance with the REDTOP High-Performance AGM Battery, the ultimate starting battery designed to ensure a reliable ignition every time. Engineered for strong starting bursts, this battery offers high-power delivery and extreme resistance to common causes of battery failure. Enjoy key benefits including up to 3X longer life, 15 times more vibration resistance, virtually spill-proof design, and mountability in any position. With maintenance-free operation and faster recharging, this battery provides optimal starting power for your Mini.

  • Strongest starting burst for reliable ignition
  • Up to 3X longer life for extended durability
  • 15 times more vibration resistance for enhanced reliability
  • Virtually spill-proof design for peace of mind
  • Mountable in virtually any position for convenience
  • Maintenance-free operation for hassle-free use
  • Faster recharging for minimal downtime
  • Optimal starting power for your Mini

Specs:

  • Weight: 31.7 lbs
  • Reserve Capacity: 44 Ah
  • Post Type: SAE Post
  • CCA: 720 Amp
  • Width: 6.75 in
  • Length: 9.38 in
  • Height: 7.69 in
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Alta Performance - Corporate Logo
T#:586195
Part#: AMPENG213
Ships in 6 Business Days
$ 32.00 USD
Free Shipping on orders $49 and up

Upgrade your Mini's supercharger with the Supercharger Pulley Belt from Alta Performance. Specifically designed for the R52 R53 W11 1.6L Engine and compatible with Alta 15% and 17% pulleys (part number 60535), this belt ensures optimal performance. Don't let a worn-out belt cause annoying squeaks under the hood – replace it every 30,000 miles and keep your Mini running smoothly.

  • Designed for R52 R53 W11 1.6L Engine
  • Compatible with Alta 15% and 17% pulleys
  • Connects main pulley to alternator, water pump, and air conditioner pump pulley
  • Replace every 30,000 miles to maintain optimal performance
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