BMW Engine Parts for BMW E93 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:

Spark Plug Socket 16MM 12 Point Swivel
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:640924
Part#: CTA4329
In Stock
$ 24.28 USD
Free Shipping on orders $49 and up
Swivel Spark Plug Socket 16MM
OEM INA Accessory Belt Tensioner Pulley - Water Pump/Alternator - BMW...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:31059479
Part#: 11287838194KT
Ships in 3 Business Days
$ 30.99 USD
Free Shipping on orders $49 and up
If your water pump or alternator belt tensioner has failed because of the pulley or bearing, this replacement pulley is all you need to get your BMW back on the road! BMW and other brands usually sell the tensioner with the metal arm included, which increases the cost, even though the arm often doesn't need replacement. This OEM replacement is a much more affordable option, saving you $150 or more compared to the Genuine BMW tensioner.
Show More Show Less
CTA Tools Valve Spring Compressor Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:584140
Part#: CTA2112
In Stock
$ 115.45 USD
Free Shipping
$ 115.45 USD
Free Shipping
Replaces valve springs and valve stem oil seals without the need to remove the cylinder head

OEM INA Accesory Belt Tensioner Pulley - Air Conditioner - BMW E9X M3...
For clockwise power steering pump
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:31092500
Part#: 11287838196KT
In Stock
$ 25.99

This product was last offered at the strikethrough price on
05-06-2026

$ 24.99 USD
Free Shipping on orders $49 and up
$ 24.99 USD
Free Shipping on orders $49 and up
If your air conditioning belt tensioner has failed because of the pulley or bearing, this replacement pulley is all you need to get your BMW back on the road! BMW and other brands usually sell the tensioner with the metal arm included, which increases the cost, even though the arm often doesn't need replacement. This OEM replacement is a much more affordable option, saving you $180 or more compared to the Genuine BMW tensioner.
Show More Show Less

Crank Bolt Socket 22mm
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:3729823
Part#: CTA1067
In Stock
$ 31.43 USD
Free Shipping on orders $49 and up
Designed for extreme torque
4 Pc. Spark Plug Socket Set-Euro
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:1241318
Part#: CTA2030
Ships on Jul 28, 2026
$ 81.95 USD
Free Shipping
$ 81.95 USD
Free Shipping
Get the complete set and be ready.

Piston Ring Installer
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:641669
Part#: CTA2028
In Stock
$ 9.27 USD
Free Shipping on orders $49 and up
Installs and removes piston rings without damaging
Plastigage Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:640925
Part#: CTA2450
In Stock
$ 9.27 USD
Free Shipping on orders $49 and up

Plastigage Set is an essential tool for accurately measuring the clearances of engine rod and main bearings without the need for expensive micrometers. This set is ideal for ensuring proper engine assembly by helping you choose the correct size replacement bearing inserts. Designed to cover all automotive engines, the Plastigage Set provides precise measurements to maintain optimal engine performance.

  • Accurate Measurements: Measures clearances of engine rod and main bearings, ensuring proper fitment.
  • Cost-Effective: Eliminates the need for expensive micrometers, offering a budget-friendly solution.
  • Universal Application: Suitable for all automotive engines, making it versatile for various applications.
  • Complete Set: Includes sizes .001" - .003" (green) and .002" - .006" (red) to cover a wide range of measurements.
Show More Show Less

9-Wire Spark Plug Gap Gauge
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:641657
Part#: CTA3238
In Stock
$ 3.99 USD
Free Shipping on orders $49 and up
Always check gap on your new spark plugs

2 Pc. O-Ring Pick Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:641668
Part#: CTA2554
In Stock
$ 8.55 USD
Free Shipping on orders $49 and up
High quality steel blades with 4 different patterns for removal & installation of O-Rings, Oil Seals & more
CTA Tools - Spark Plug Gapper
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:641654
Part#: CTA3235
In Stock
$ 1.99 USD
Free Shipping on orders $49 and up

CTA Tools - Spark Plug Gapper is an essential tool for accurately setting and measuring spark plug gaps, ensuring optimal engine performance. This precision tool is designed for both professional and DIY mechanics, providing reliable gap adjustments for a variety of engine applications.

  • Versatile Measurement Range: The ramp gauge measures gaps from .020 to .100 inches (0.50 to 2.5 mm), accommodating a wide range of spark plug specifications.
  • Precision Engineering: Engineered to deliver accurate gap settings, improving engine efficiency and performance.
  • Made in the USA: Crafted with high-quality materials to ensure durability and long-lasting performance.
  • Easy to Use: Simple design makes gap adjustments quick and straightforward, enhancing convenience in any workshop or garage setting.

Upgrade your toolset with the CTA Tools - Spark Plug Gapper to achieve precise spark plug gaps and optimize your engine’s performance.

Show More Show Less
OEM INA Idler Pulley - Multiple BMWs
For vehicles with a production date up to 04/2008
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:1626
Part#: 11287841228
In Stock
$ 18.99 USD
Free Shipping on orders $49 and up
$ 18.99 USD
Free Shipping on orders $49 and up
This is an OEM INA 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).
Show More Show Less


5 Pc. Hook & Pick Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:641721
Part#: CTA9900
Ships on Jul 28, 2026
$ 9.99 USD
Free Shipping on orders $49 and up
For separating wires, removing small fuses, "O" rings, retrieving washers and parts, scribing on metal parts