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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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S65 Timing Chain Kit - E90, E92, M3

10X Entries Into Our F80 M3 Sweepstakes

T#:55353596

Part#: 11317838479KT2

Ships in 3 Business Days

$ 1,495.99

This product was last offered at the strikethrough price on
08-17-2026

$ 1,481.99 USD

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$ 1,481.99 USD

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Oil Level Indicator with hardware

10X Entries Into Our F80 M3 Sweepstakes

T#:52551471

Part#: 12617607910KT1

In Stock

Sale - Save 15% $ 159.99

This product was last offered at the strikethrough price on
05-03-2026

$ 135.99 USD

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Sale - Save 15%

$ 159.99

This product was last offered at the strikethrough price on
05-03-2026

$ 135.99 USD

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Reads oil level in oil pan, includes new hardware and seal

Locking Hex Nut - M6 - Priced Each

10X Entries Into Our F80 M3 Sweepstakes

T#:22558959

Part#: 94235A080

In Stock

Sale - Save 62% $ 3.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1.53 USD

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Sale - Save 62%

$ 3.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1.53 USD

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Allen Head Bolt - priced each

10X Entries Into Our F80 M3 Sweepstakes

T#:372427

Part#: 91290A231

In Stock

Sale - Save 80% $ 4.99

This product was last offered at the strikethrough price on
05-02-2026

$ 0.99 USD

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Sale - Save 80%

$ 4.99

This product was last offered at the strikethrough price on
05-02-2026

$ 0.99 USD

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Allen Head Bolt

Upgrade your fastening needs with the Allen Head Bolt, a versatile and reliable solution for various applications. Crafted from high-quality materials, these bolts offer exceptional strength and durability. Their allen head design ensures secure tightening and easy access, making them ideal for automotive, construction, and DIY projects. Elevate your projects with the precision and reliability of Allen Head Bolts.

High-quality materials for exceptional strength
Secure tightening with allen head design
Versatile usage for automotive, construction, and DIY projects
Reliable and durable solution for various applications

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Active Autowerke Rotrex Traction Fluid - 1 Liter

T#:57616348

Part#: RTF-1L

Ships in 3 Business Days

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

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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

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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).

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Active Autowerke Supercharger Kit Gen 2 Level 4 - E9X M3 S65 4.0L ...

T#:57616347

Part#: 12-032-C38

Ships in 10 Business Days

$ 23,749.00 USD

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$ 23,749.00 USD

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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.

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S65 Ignition Service Kit - E9X M3

10X Entries Into Our F80 M3 Sweepstakes

T#:55569528

Part#: 12137841754KT5

Ships in 1-2 days

$ 2,245.99

This product was last offered at the strikethrough price on
09-14-2026

$ 2,220.99 USD

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$ 2,220.99 USD

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The Turner Motorsport S65 Ignition Service Kit restores ignition timing and ionic knock-sensing accuracy on the BMW E9X M3 S65 engine. Worn spark plugs alter cylinder electrical resistance, disrupting ionic current knock detection across the ignition coils. Replacing all eight NGK plugs, S65 coils, and applying AGS dielectric boot protector restores precise combustion and knock monitoring.

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King X-Series Bearings S65 Performance Rod Bearing Replacement Kit ...

10X Entries Into Our F80 M3 Sweepstakes

T#:56218624

Part#: CR8066GPCXKT2

Ships on Nov 2, 2026

$ 1,219.99

This product was last offered at the strikethrough price on
10-08-2026

$ 1,217.99 USD

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$ 1,217.99 USD

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We built this S65 Rod Bearing Refresh Kit to deliver proven reliability under severe operating conditions. Anchored by King’s X-series Coated GPC Rod Bearings, this kit utilizes specialized polymer coatings to resist scuffing, handle elevated oil temperatures

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King Bearings S65 Performance Rod Bearing Replacement Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:56218621

Part#: CR8066GPCKT2

Ships on Nov 2, 2026

$ 1,219.99

This product was last offered at the strikethrough price on
10-08-2026

$ 1,217.99 USD

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$ 1,217.99 USD

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We built this S65 Rod Bearing Refresh Kit to deliver proven reliability under severe operating conditions. Anchored by King’s Coated GPC Rod Bearings, this kit utilizes specialized polymer coatings to resist scuffing, handle elevated oil temperatures

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S65 High Performance Rod Bearing And Bolt Set - E9x

10X Entries Into Our F80 M3 Sweepstakes

T#:55857735

Part#: S65BABKT2

Ships on Nov 2, 2026

$ 547.99 USD

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$ 547.99 USD

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We’ve packaged the ultimate preventative maintenance solution to keep your high-revving 4.0L V8 screaming all the way to its 8,400 RPM redline with peace of mind. This kit combines the industry's most trusted bearings with high-strength fasteners to eliminate the S65’s biggest Achilles' heel.

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E9X M3 Oxygen Sensor - Priced Each

10X Entries Into Our F80 M3 Sweepstakes

T#:57267803

Part#: 11787537984

Ships on Dec 29, 2026

Sale - Save 10% $ 79.99

This product was last offered at the strikethrough price on
10-08-2026

$ 71.99 USD

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Sale - Save 10%

$ 79.99

This product was last offered at the strikethrough price on
10-08-2026

$ 71.99 USD

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Positive Cable Battery Connection Pole

10X Entries Into Our F80 M3 Sweepstakes

T#:57616371

Part#: 61129217031

Ships on Jan 11, 2027

Sale - Save 10% $ 135.99

This product was last offered at the strikethrough price on
10-08-2026

$ 122.39 USD

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Sale - Save 10%

$ 135.99

This product was last offered at the strikethrough price on
10-08-2026

$ 122.39 USD

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E9X M3 Oxygen Sensor - Black

10X Entries Into Our F80 M3 Sweepstakes

T#:58234534

Part#: 11787539125

Ships on Jan 28, 2027

Sale - Save 10% $ 99.99

This product was last offered at the strikethrough price on
10-08-2026

$ 89.99 USD

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Sale - Save 10%

$ 99.99

This product was last offered at the strikethrough price on
10-08-2026

$ 89.99 USD

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