BMW Gaskets, Gasket Sets, Seals, & O-Rings for BMW E90 M3 S65 4.0L

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Gaskets are key to a properly running and clean engine. They obviously prevent fluid leaks but they're also critical in keeping air either in or out... Air leaks after the air flow meter, also known as vaccum leaks, can induce lean running conditions, fault codes, and poor running conditions. Other seals and gaskets are designed to keep air in. With the sensitivity of OBD systems, leaks will lead to fault codes very quickly which can be tough to diagnose and prevent you from passing state inspections.

We insist on Original BMW or OEM gaskets whenever possible.

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Cometic Head Gasket - BMW S65B40 - 0.040" Thick
Cometic Head Gasket - BMW S65B40 - 0.040" Thick
Cometic - Corporate Logo
T#:19428661
Part#: C5112-040
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$ 144.99 USD
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$ 144.99 USD
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Multi-Layer Steel gaskets are comprised of multiple embossed layers of both proprietary high-temperature coated and uncoated stainless steel, requiring less clamp load, creating less bore distortion, and conforms load distribution across the sealing area. The embossed outer layers of our head gaskets meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The MLS Gasket (Multi-Layer Steel) features an active combustion seal on multiple layers. The stainless steel outer layers utilize FKM (Viton®) rubber coating, a high-temperature and chemical-resistant polymer. A topcoat of PTFE aids in resistance to fret and increased cold sealing.
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Cometic Multi-layer Steel Head Gasket Set
Cometic Multi-layer Steel Head Gasket Set
Cometic - Corporate Logo
T#:24079611
Part#: COM-HG-S65-93030
Ships in 4 Business Days
$ 379.99 USD
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$ 379.99 USD
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93mm - 0.030"
Valve Cover Gasket - Left - Cyl 1-4
Valve Cover Gasket - Left - Cyl 1-4
Victor Reinz - Corporate Logo
T#:18269303
Part#: 11127838271
Ships in 7 Business Days
$ 77.54

This product was last offered at the strikethrough price on
05-30-2026

$ 65.82 USD
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$ 65.82 USD
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Valve cover gaskets seal the valve train covers to the top of the engine cylinder heads. These gaskets are a common source of engine oil leaks.
Valve Cover Gasket Set - Right
Valve Cover Gasket Set - Right
Victor Reinz - Corporate Logo
T#:591279
Part#: 11127838272
Ships in 7 Business Days
$ 64.58

This product was last offered at the strikethrough price on
05-29-2026

$ 54.62 USD
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$ 54.62 USD
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Valve cover gaskets seal the valve train covers to the top of the engine cylinder heads. These gaskets are a common source of engine oil leaks.
OEM Rein Oil Cooler Line O-Ring - Multiple BMWs
OEM Rein Oil Cooler Line O-Ring - Multiple BMWs
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:15159
Part#: 17222245358
In Stock
$ 4.99 USD
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$ 4.99 USD
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This is the sealing o-ring used for many oil cooler kits on various BMW models. They're also a prime source for oil leaks because the o-ring gets 'flat' or shrinks or becomes damaged. These are usually easy to change though which puts an end to annoying small oil leaks.
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1.5mm X 51mm Metric Buna-N 70 O-ring
1.5mm X 51mm Metric Buna-N 70 O-ring
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:388889
Part#: N1.50X051
In Stock
Sale - Save 25% $ 5.99

This product was last offered at the strikethrough price on
06-13-2026

$ 4.49 USD
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Sale - Save 25%
$ 5.99

This product was last offered at the strikethrough price on
06-13-2026

$ 4.49 USD
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1.5mm X 51mm Metric Buna-N 70 O-ring is the perfect sealing solution for various industrial applications. Made from high-quality Buna-N material, this O-ring provides reliable sealing performance, ensuring leak-free connections. With its metric sizing and 70 durometer hardness, it offers versatility and durability for a wide range of uses.

  • High-quality Buna-N material
  • Reliable sealing performance
  • Metric sizing for versatility
  • 70 durometer hardness for durability
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Victor Reinz O-Ring
Victor Reinz O-Ring
Victor Reinz - Corporate Logo
T#:592881
Part#: 11367507729
Ships in 1 Business Day
$ 3.99 USD
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$ 3.99 USD
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If you drive a European vehicle, chances are high your vehicle came equipped with one or more Victor Reinz gaskets. Choose OE quality VR gaskets and seals and do the job right the first time.
Victor Reinz O-Ring for Oil Level Sensor
Victor Reinz O-Ring for Oil Level Sensor
Victor Reinz - Corporate Logo
T#:596362
Part#: 12611744292
Ships in 1 Business Day
$ 8.99

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

$ 7.99 USD
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$ 7.99 USD
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General Purpose Clamp - Priced Each
General Purpose Clamp - Priced Each
Norma - Corporate Logo
T#:594670
Part#: 64218367179
Ships in 1 Business Day
$ 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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Clamps are like bolts and nuts, as you can never have enough of them. If you do work on your vehicle in your home, you are going to need clamps often. If you need one clamp, why not get a few to ensure that you are always prepared.
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Cometic Head Gasket - BMW S65B40 - 0.027" Thick
Cometic Head Gasket - BMW S65B40 - 0.027" Thick
Cometic - Corporate Logo
T#:31556168
Part#: C5112-027
Back Ordered
$ 122.99 USD
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$ 122.99 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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Cometic Head Gasket - BMW S65B40 - 0.057" Thick
Cometic Head Gasket - BMW S65B40 - 0.057" Thick
Cometic - Corporate Logo
T#:31556170
Part#: C5112-057
Back Ordered
$ 183.99 USD
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$ 183.99 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 - 0.080" Thick
Cometic Head Gasket - BMW S65B40 - 0.080" Thick
Cometic - Corporate Logo
T#:31556167
Part#: C5111-080
Back Ordered
$ 189.99 USD
Free Shipping on orders $49 and up
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$ 189.99 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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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
Free Shipping on orders $49 and up
Add to Wish List
$ 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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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
Free Shipping on orders $49 and up
Add to Wish List
$ 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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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
Add to Wish List
$ 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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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
Add to Wish List
$ 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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