BMW Engine Parts for BMW E90 M3 S65 4.0L

Clear BMW chassis

Please ensure your correct model is selected

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.

Sub-Categories

Sort By:
E9X M3 Performance Underdrive Pulley Kit
E9X M3 Performance Underdrive Pulley Kit
For vehicles with a production date from 05/2008+ & a counterclockwise rotating Power S...
Macht Schnell - Corporate Logo
T#:593749
Part#: 10.00.011
Ships on Nov 2, 2026
$ 349.00 USD
Free Shipping
Add to Wish List
$ 349.00 USD
Free Shipping
Add to Wish List
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
Show More Show Less
Multi-Pump Fuel Surge Tank (MPFST)
Multi-Pump Fuel Surge Tank (MPFST)
Radium Engineering - Corporate Logo
T#:31059457
Part#: 20-1440
In Stock at Vendor
$ 549.99 USD
Free Shipping
Add to Wish List
$ 549.99 USD
Free Shipping
Add to Wish List
E9X M3 6/2008+ Dinan Underdrive Pulley Kit
E9X M3 6/2008+ Dinan Underdrive Pulley Kit
For vehicles with a production date from 06/2008
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Dinan - Corporate Logo
T#:389532
Part#: D560-0004
Ships in 5 Business Days
Sale - Save 10% $ 449.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 404.96 USD
Free Shipping
Add to Wish List
Sale - Save 10%
$ 449.99

This product was last offered at the strikethrough price on
09-28-2026

$ 404.96 USD
Free Shipping
Add to Wish List
Active Autowerke Power Pulley Kit - E9x M3
Active Autowerke Power Pulley Kit - E9x M3
For vehicles with production date 2007-5/2008
Active Autowerke - Corporate Logo
T#:397285
Part#: 13-001
Ships in 3 Business Days
5% off MSRP $ 399.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 379.99 USD
Free Shipping
Add to Wish List
5% off MSRP
$ 399.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 379.99 USD
Free Shipping
Add to Wish List
Easy to install - reduces parasitic losses from belt driven auxiliary components. Engine crankshaft pulley remains the same, this modification simply unleashes untapped potential from your vehicle. Expect to see gains around 10 RWHP from your S65. All BMW power pulleys included, including alternator, water pump, and power steering pulleys.
Show More Show Less
Replacement Belt For Underdrive Pulley Kit D560-0003 & D560-0004
Replacement Belt For Underdrive Pulley Kit D560-0003 & D560-0004 ...
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Dinan - Corporate Logo
T#:586065
Part#: D561-0007
Ships in 5 Business Days
Sale - Save 10% $ 95.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 86.30 USD
Free Shipping
Add to Wish List
Sale - Save 10%
$ 95.99

This product was last offered at the strikethrough price on
09-29-2026

$ 86.30 USD
Free Shipping
Add to Wish List
BMW E9X M3 Replacement Belt For Underdrive Pulley Kit - (D560-0004)
BMW E9X M3 Replacement Belt For Underdrive Pulley Kit - (D560-0004) ...
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Call In, Chat, Or Email, For Best Price! Limited Time Only!
Dinan - Corporate Logo
T#:586064
Part#: D561-0002
Back Ordered
Sale - Save 10% $ 126.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 114.26 USD
Free Shipping
Add to Wish List
Sale - Save 10%
$ 126.99

This product was last offered at the strikethrough price on
09-29-2026

$ 114.26 USD
Free Shipping
Add to Wish List

BMW E9X M3 Replacement Belt For Underdrive Pulley Kit - (D560-0004) is an essential component designed specifically for the Underdrive Pulley Kit. This belt is one of the two required for optimal performance of the kit.

  • Designed for Precision: Tailored to fit the BMW E9X M3 Underdrive Pulley Kit perfectly.
  • High-Quality Construction: Built to withstand the demands of high-performance driving.
  • Optimal Performance: Ensures smooth operation and reliable power delivery.
  • Easy Replacement: Simple to install, making maintenance straightforward.
Show More Show Less
Advanced Fuel Dynamics ProFlex Commander Flex Fuel System - E9X M3 S65
Advanced Fuel Dynamics ProFlex Commander Flex Fuel System - E9X M3 S6...
Advanced Fuel Dynamics - Corporate Logo
T#:589664
Part#: PFC-E9XM3K
Ships in 2 Business Days
Starting at $ 899.00 USD
Free Shipping
Add to Wish List
Starting at $ 899.00 USD
Free Shipping
Add to Wish List
This full bolt on kit is a complete solution allowing you to alternate between standard and flex fuels without any tuning or mode switching.
Replacement Belt For Underdrive Pulley Kit D560-0003
Replacement Belt For Underdrive Pulley Kit D560-0003
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Dinan - Corporate Logo
T#:586063
Part#: D561-0003
Ships in 5 Business Days
Sale - Save 10% $ 63.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 57.56 USD
Free Shipping
Add to Wish List
Sale - Save 10%
$ 63.99

This product was last offered at the strikethrough price on
09-29-2026

$ 57.56 USD
Free Shipping
Add to Wish List
Active Autowerke Rotrex Traction Fluid - 1 Liter
Active Autowerke Rotrex Traction Fluid - 1 Liter
Active Autowerke - Corporate Logo
T#:57616348
Part#: RTF-1L
Ships in 3 Business Days
New Item
7% off MSRP $ 140.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 130.00 USD
Free Shipping
Add to Wish List
7% off MSRP
$ 140.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 130.00 USD
Free Shipping
Add to Wish List
Rotrex superchargers utilize a unique traction drive system that sets it apart from other centrifugal-style superchargers. For best performance, Rotrex recommends replacing this fluid every 50,000 miles. This bottle of traction fluid is plenty enough for one supercharger service (typically 750ml).
Show More Show Less
Active Autowerke - S65 Gen2 Supercharger Kit (Level 2/ 640HP)- E9X M3
Active Autowerke - S65 Gen2 Supercharger Kit (Level 2/ 640HP)- E9X M3...
Active Autowerke - Corporate Logo
T#:397304
Part#: 12-029
Ships in 10 Business Days
5% off MSRP $ 16,249.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 15,436.99 USD
Free Shipping
Add to Wish List
5% off MSRP
$ 16,249.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 15,436.99 USD
Free Shipping
Add to Wish List
Since getting their start in 1981, Active Autowerke has earned a well-respected reputation in the BMW community for engineering high-quality power solutions for popular BMW models. This supercharger kit will produce 640 horsepower and 413 ft.lbs. of torque on your BMW, while retaining platform integrity and daily driveability. Unique to the design of the Rotrex supercharger is the traction drive system, which eliminates the lag often found in other centrifugal supercharger setups. Power delivery is smooth and dependable, and 100% reversible to stock if you so choose, since each system is designed as a self-contained unit.
Show More Show Less
Active Autowerke - S65 Gen2 Supercharger Kit (Level 3/ 700HP)- E9X M3
Active Autowerke - S65 Gen2 Supercharger Kit (Level 3/ 700HP)- E9X M3...
Active Autowerke - Corporate Logo
T#:397305
Part#: 12-030
Ships in 10 Business Days
5% off MSRP $ 18,749.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 17,811.99 USD
Free Shipping
Add to Wish List
5% off MSRP
$ 18,749.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 17,811.99 USD
Free Shipping
Add to Wish List
Since getting their start in 1981, Active Autowerke has earned a well-respected reputation in the BMW community for engineering high-quality power solutions for popular BMW models. This supercharger kit will produce 700 horsepower and 480 ft.lbs. of torque on your BMW, while retaining platform integrity and daily driveability. Unique to the design of the Rotrex supercharger is the traction drive system, which eliminates the lag often found in other centrifugal supercharger setups. Power delivery is smooth and dependable, and 100% reversible to stock if you so choose, since each system is designed as a self-contained unit.
Show More Show Less
Active Autowerke Supercharger Kit Gen 2 Level 4 - E9X M3 S65 4.0L
Active Autowerke Supercharger Kit Gen 2 Level 4 - E9X M3 S65 4.0L ...
Active Autowerke - Corporate Logo
T#:57616347
Part#: 12-032-C38
Ships in 10 Business Days
New Item
$ 23,749.00 USD
Free Shipping
Add to Wish List
$ 23,749.00 USD
Free Shipping
Add to Wish List
The Active Autowerke Supercharger System is powered by a Rotrex C38-92R Supercharger Unit mounted with a custom CNCed bracket that uses a dedicated drive belt system, while eight high flow fuel injectors are used to supply the additional required fuel. Active Autowerke's Performance Software, available for 91-93 octane, race gas, and octane levels unique to other countries, is carefully calibrated, and is at the heart of the system to provide an unparalleled driving experience. Keeping within the factory's OBDII parameters, the Active Autowerke Supercharger System ensures consistency for everyday driving. The Level 4 system includes a water/methanol injection system with upgraded pulley and custom software.
Show More Show Less

Select Vehicle

BMW Mini
Clear Vehicle

Purpose

Category

Brand

Price

$
$

Special Offers

Shipping