BMW Engine Parts for BMW E90 M3 S65 4.0L

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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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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 in 5 Business Days
$ 349.00 USD
Free Shipping
$ 349.00 USD
Free Shipping
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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Performance Tool - Corporate Logo
T#:1809130
Part#: W89409
Ships in 1 Business Day
$ 126.99 USD
Free Shipping
$ 126.99 USD
Free Shipping
For servicing overhead valve engine with cylinder head removed.
Performance Tool - Corporate Logo
T#:1809147
Part#: W5202
In Stock at Vendor
$ 21.99 USD
Free Shipping on orders $49 and up
Nitrile Butadiene Rubber

OEM Febi Idler Pulley - Multiple BMWs
For vehicles with a production date up to 04/2008
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:382342
Part#: 11287841228
In Stock
$ 48.99 USD
Free Shipping on orders $49 and up
$ 48.99 USD
Free Shipping on orders $49 and up
This is an OEM Febi Upper Idler Pulley, also known as the roller pulley or deflection pulley. The upper and lower idler pulleys are known to be the primary sources for 'belt squealing'. The pulley is also encased in rubber which will crack over time. If left without service the rubber could fail completely, chucking the belt and leaving you stranded. Replacement is a very simple procedure and can be done anytime the fan is off the engine (belt replacement, water pump service, alternator replacement, etc).
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Febi Outdoor Temperature Sensor / Probe
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Febi - Corporate Logo
T#:382731
Part#: 65816936953
Ships in 1 Business Day
$ 20.79 USD
Free Shipping on orders $49 and up
Common fix for incorrect OBC temperature readings
Performance Tool - Corporate Logo
T#:2242223
Part#: W80573
Ships in 1 Business Day
$ 22.99 USD
Free Shipping on orders $49 and up
Use to install pistons on most passenger cars and truck engines

Performance Tool - Corporate Logo
T#:2242226
Part#: W80533
Ships in 1 Business Day
$ 20.25 USD
Free Shipping on orders $49 and up
Extended socket length reaches confined areas.
Sunex - Corporate Logo
T#:391150
Part#: SUU884506
In Stock
9% off MSRP $ 31.99

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

$ 28.99 USD
Free Shipping on orders $49 and up
9% off MSRP
$ 31.99

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

$ 28.99 USD
Free Shipping on orders $49 and up
3/8" drive socket with 5/8" opening for most spark plugs

POR-15 - Corporate Logo
T#:1575841
Part#: POR49216
Ships in 6 Business Days
$ 40.99 USD
Free Shipping on orders $49 and up
POR-15 Fuel Tank Sealer was formulated and developed in our own laboratories due to the demand for a high-tech sealer impervious to all fuels, including the new Stage II fuels which have a high alcohol content.
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Performance Tool - Corporate Logo
T#:2242222
Part#: W80572
Ships in 1 Business Day
$ 21.99 USD
Free Shipping on orders $49 and up
Use to install pistons on most passenger cars and truck engines
Febi - Corporate Logo
T#:382432
Part#: 13627839138
Ships on Jan 11, 2027
$ 53.99 USD
Free Shipping on orders $49 and up
$ 53.99 USD
Free Shipping on orders $49 and up
Referred to as the speed sensor & reference sensor
Febi - Corporate Logo
T#:56471623
Part#: 11287835422
Ships on Jan 11, 2027
New Item
$ 78.99 USD
Free Shipping on orders $49 and up
This Febi Bilstein accessory belt vibration damper is designed to maintain consistent belt tracking and suppress high-RPM harmonic vibrations


Febi Relay - Replaces White/Green
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:16375128
Part#: 61368373700
Ships on Jan 11, 2027
Sale - Save 28% $ 15.99

This product was last offered at the strikethrough price on
05-15-2026

$ 11.56 USD
Free Shipping on orders $49 and up
Sale - Save 28%
$ 15.99

This product was last offered at the strikethrough price on
05-15-2026

$ 11.56 USD
Free Shipping on orders $49 and up
This relay is often the fuel pump relay for many BMW models. To ensure the relay is correct for your car please check the pin locations
Performance Tool - Corporate Logo
T#:641935
Part#: WLMW5203
In Stock
$ 19.99 USD
Free Shipping on orders $49 and up
Many uses around the garage and home
Performance Tool - Corporate Logo
T#:1855974
Part#: W942
Ships on Dec 15, 2026
$ 8.99 USD
Free Shipping on orders $49 and up
Includes straight, angled and combination picks

Performance Tool - Corporate Logo
T#:1855998
Part#: W80535
Ships in 1-2 days
$ 1.99

This product was last offered at the strikethrough price on
08-26-2026

$ 1.54 USD
Free Shipping on orders $49 and up
$ 1.54 USD
Free Shipping on orders $49 and up
Easy to read markings to set gaps quickly and easily.

Performance Tool - Corporate Logo
T#:1809133
Part#: W80575
Ships in 1 Business Day
$ 17.62 USD
Free Shipping on orders $49 and up
Comfortable vinyl grip handles.
Performance Tool - Corporate Logo
T#:1809154
Part#: W5368
In Stock
$ 13.68 USD
Free Shipping on orders $49 and up
A must for any toolbox.

Febi - Corporate Logo
T#:57543712
Part#: 07129904150
Ships on Nov 20, 2026
New Item
$ 5.99 USD
Free Shipping on orders $49 and up
This Febi Bilstein 5-piece fastener set offers genuine OEM-level durability and precision tolerance to ensure your vehicle stays tightly bolted together.
Crankshaft Position Sensor
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:16175684
Part#: 13627525015
Special Order: No Guaranteed ETA
$ 46.99 USD
Free Shipping on orders $49 and up

Febi - Corporate Logo
T#:54816249
Part#: 64538375742
Special Order: No Guaranteed ETA
New Item
$ 0.99 USD
Free Shipping on orders $49 and up
Heavy-duty track-day grade green O-ring keeps BMW A/C systems sealed.

Febi - Corporate Logo
T#:56580211
Part#: 13539899007
Special Order: No Guaranteed ETA
New Item
$ 38.99 USD
Free Shipping on orders $49 and up
This Febi Bilstein Fuel Pressure Sensor provides a reliable solution to restore precise fuel monitoring.
Febi - Corporate Logo
T#:55821709
Part#: 51127070202
Special Order: No Guaranteed ETA
New Item
$ 1.99 USD
Free Shipping on orders $49 and up
This Febi-manufactured M6 C-Clip Nut is the exact direct-replacement fastener needed to keep your BMW or MINI's bodywork properly secured.