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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Cometic Head Gasket - BMW S65B40 - 0.057" Thick
Cometic Head Gasket - BMW S65B40 - 0.057" Thick
Cometic - Corporate Logo
T#:31556170
Part#: C5112-057
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$ 183.99 USD
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$ 183.99 USD
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Cometic is the industry standard when upgrading the head gasket on your high performance BMW. These MLS (Metal Layered Steel) head gaskets are many enthusiasts’ choice when adding more boost or simply bulletproofing your current setup! Designed for high-performance applications, Cometic Head Gaskets are sure to stand up to the task!
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4MM Silicone Vacuum Hose - Black - 9 Feet
4MM Silicone Vacuum Hose - Black - 9 Feet
Forge - Corporate Logo
T#:370919
Part#: VC04B
In Stock
$ 14.99 USD
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$ 14.99 USD
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Car suffering from vacuum leaks? This vacuum hose has a 4mm inner diameter. 
Cometic Head Gasket - BMW S65B40 - 0.080" Thick
Cometic Head Gasket - BMW S65B40 - 0.080" Thick
Cometic - Corporate Logo
T#:31556167
Part#: C5111-080
Back Ordered
$ 189.99 USD
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$ 189.99 USD
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Cometic is the industry standard when upgrading the head gasket on your high performance BMW. These MLS (Metal Layered Steel) head gaskets are many enthusiasts’ choice when adding more boost or simply bulletproofing your current setup! Designed for high-performance applications, Cometic Head Gaskets are sure to stand up to the task!
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18" Flexible Magnetic Pickup Tool
18" Flexible Magnetic Pickup Tool
Gear Wrench - Corporate Logo
T#:641342
Part#: 1711D
Back Ordered
$ 16.99 USD
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$ 16.99 USD
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Meyle Outdoor Temperature Sensor / Probe
Meyle Outdoor Temperature Sensor / Probe
5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:579266
Part#: 3009190001
Back Ordered
$ 44.99 USD
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$ 44.99 USD
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Common fix for incorrect OBC temperature readings
O-Ring - Priced Each
O-Ring - Priced Each
Corteco - Corporate Logo
T#:596676
Part#: 11317507432
Back Ordered
$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.99 USD
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$ 2.99 USD
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This o-ring is located on the timing chain tensioner bolts.
Cometic Head Gasket - BMW S65B40 - 0.051" Thick
Cometic Head Gasket - BMW S65B40 - 0.051" Thick
Cometic - Corporate Logo
T#:31556169
Part#: C5112-051
Back Ordered
$ 144.99 USD
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$ 144.99 USD
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Cometic is the industry standard when upgrading the head gasket on your high performance BMW. These MLS (Metal Layered Steel) head gaskets are many enthusiasts’ choice when adding more boost or simply bulletproofing your current setup! Designed for high-performance applications, Cometic Head Gaskets are sure to stand up to the task!
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VTT S65 Billet Valve Cover Set
VTT S65 Billet Valve Cover Set
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:20749241
Part#: S65BVC
Back Ordered
Starting at $ 1,698.99 USD
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Starting at $ 1,698.99 USD
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VTT is proud to announce the S65 Billet Valve cover set. VTT created these for the S65 owner who wants to add a great look to their engine bay while also getting rid of the stock valve cover which are very problematic and can crack/leak/delaminate with higher mileage. Eliminating the leak-prone factory oil cap design with a threaded cap with O-ring Seal, VTT has also added two -10 ORB bungs which allow you complete freedom to plumb in a catch can, or vent system of your choice. The internal baffling is 100% in place to knock down any oil from the vapors before being expelled. Factory PCV has also been kept in place so these can be run in essentially any configuration required. 100% CNC 6061-T6 Aircraft aluminum construction Anodized in a variety of colors Lightweight; 9.7 lbs. (compared to 7.9 lbs for a stock cover – only 1.8 lbs difference) TWO shrouded -10 ORB ports which Give the end-user variety for setting up their Valve Cover and PCV System Only Billet option on the market with a threaded oil cap, and PCV choices Works with our 1' one-way breather for ultimate crankcase venting Kit includes: Two Billet Valve covers Two US-sourced Viton Gaskets
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Cometic Head Gasket - BMW S65B40 - 0.027" Thick
Cometic Head Gasket - BMW S65B40 - 0.027" Thick
Cometic - Corporate Logo
T#:31556164
Part#: C5111-027
Back Ordered
$ 144.99 USD
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$ 144.99 USD
Free Shipping on orders $49 and up
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Cometic is the industry standard when upgrading the head gasket on your high performance BMW. These MLS (Metal Layered Steel) head gaskets are many enthusiasts’ choice when adding more boost or simply bulletproofing your current setup! Designed for high-performance applications, Cometic Head Gaskets are sure to stand up to the task!
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Cometic Head Gasket - BMW S65B40 - 0.040" Thick
Cometic Head Gasket - BMW S65B40 - 0.040" Thick
Cometic - Corporate Logo
T#:31556166
Part#: C5111-040
Back Ordered
$ 144.99 USD
Free Shipping on orders $49 and up
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$ 144.99 USD
Free Shipping on orders $49 and up
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Cometic is the industry standard when upgrading the head gasket on your high performance BMW. These MLS (Metal Layered Steel) head gaskets are many enthusiasts’ choice when adding more boost or simply bulletproofing your current setup! Designed for high-performance applications, Cometic Head Gaskets are sure to stand up to the task!
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Cometic Head Gasket - BMW S65B40 - 0.030" Thick
Cometic Head Gasket - BMW S65B40 - 0.030" Thick
Cometic - Corporate Logo
T#:31556165
Part#: C5111-030
Back Ordered
$ 144.99 USD
Free Shipping on orders $49 and up
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$ 144.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Cometic is the industry standard when upgrading the head gasket on your high performance BMW. These MLS (Metal Layered Steel) head gaskets are many enthusiasts’ choice when adding more boost or simply bulletproofing your current setup! Designed for high-performance applications, Cometic Head Gaskets are sure to stand up to the task!
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JE Pistons BMW S65B40 - 92.00/.827/3.6cc
JE Pistons BMW S65B40 - 92.00/.827/3.6cc
JE Piston - Corporate Logo
T#:33512916
Part#: 371714
Back Ordered
$ 1,749.99 USD
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$ 1,749.99 USD
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92.00/.827/3.6cc JE Pistons BMW S65B40

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