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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BMW S65 4.0L Vanos Covers 7075 - QTY 4
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:20749249
Part#: VTT-S65-VANOS-CO
Ships on Oct 27, 2026
$ 264.99 USD
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$ 264.99 USD
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BMW S65 4.0L Vanos Covers 7075 provide a robust replacement for the factory plastic covers, which are known to fail over time. These high-performance Vanos covers snap on securely, offering a precise fit to eliminate vibration and prevent chafing of the engagement dogs.

  • High-Strength Construction: Machined from premium 7075 aluminum for superior durability and strength.
  • Corrosion Resistance: Anodized finish ensures long-lasting protection against corrosion.
  • Perfect Fitment: Designed for an exact fit to avoid issues such as vibration and chafing.
  • No Timing Tools Required: Easy installation with no need for engine timing tools.
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VTT S65 Billet Spark Plug Tubes
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:29566613
Part#: VTT-S65-TUBE
Back Ordered
$ 147.99 USD
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$ 147.99 USD
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Tired of oil leaks from your plastic OEM S65 spark plug tubes? So were we, so we did something about it! VTT Anodized billet 6061 Aluminum S65 spark plug tubes. We took the OEM tubes and redesigned them. Then machined them out of billet 6061, anodized them in black, and added a US-made Viton O-ring with more surface area to ensure a leak-free connection for the life of your S65 that will not break down over time. These are the perfect to upgrade when doing a VC replacement, or upgrading to VTT Billet S65 VCs! These are available in sets of 8. Kit includes: 8 S65 Billet Spark Plug Tubes
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OEM NGK Spark Plug Set - LKR8AP - E9X M3 S65
We Price Match - Give Us A Call or Chat!
NGK - Corporate Logo
T#:348135
Part#: 12120032273KT
In Stock
$ 161.99

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

$ 135.99 USD
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$ 135.99 USD
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BMW recommends a spark plug change interval of 37,000 miles for the S65 engine. Replace the spark plugs on your E9X M3 with these OEM NGK spark plugs that are a direct replacement for the factory part # 12120032273.
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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 on Nov 2, 2026
$ 349.00 USD
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$ 349.00 USD
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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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Burger Motorsports - Corporate Logo
T#:26404907
Part#: 12MMSPG
In Stock
$ 35.00 USD
Free Shipping on orders $49 and up

Spark Plug Gapper Tool BMS Billet is essential for accurately adjusting the gap of spark plugs. This precision tool ensures that each plug is set to the exact specifications required for optimal engine performance. Made in the USA, it features a 12mm plug thread size, making it suitable for a wide range of applications.

  • Precision Adjustment: Allows for accurate gap adjustments to ensure optimal spark performance and engine efficiency.
  • Speed and Efficiency: Streamlines the process of gapping plugs while maintaining high precision, saving time and effort.
  • High-Quality Construction: Crafted from billet materials for durability and reliability, ensuring long-term use.
  • Lifetime Replacement Program: Comes with a lifetime replacement guarantee, reflecting confidence in the tool's quality and performance.

Upgrade your spark plug maintenance with the Spark Plug Gapper Tool BMS Billet for a reliable and precise solution.

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Braille Performance Endurance AGM Battery - B10049 - 58lbs
This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shi
Braille - Corporate Logo
T#:558078
Part#: B10049
Ships in 1 Business Day
$ 446.99 USD
$ 446.99 USD
This Group 49 Endurance AGM battery is an ideal upgrade from the factory battery, offering higher cranking power and a longer battery life for less waste and lower cost to the customer. Plus, this battery is maintenance free and won't eat holes in the battery tray and surrounding areas of your car. Endurance AGM batteries from Braille are a drop-in OEM replacement that requires no modifications to be made for installation, has the highest cranking power and longest run times in their class, and also feature AGM internal racing technology developed for their Advanced AGM and Carbon Fiber batteries.
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Braille - Corporate Logo
T#:558042
Part#: B3121
Ships in 6 Business Days
$ 270.99 USD
Free Shipping on orders $49 and up
When building a car for the track, one of the most important factors to consider is weight. Stock batteries can weigh up to almost 50 pounds and are unnecessarily large, designed to power a host of systems not normally used in a track car (radios, lighting, etc.). What can you do to cut weight the weight without affecting your car's operation? This is where Braille Battery comes in with their long line of performance lightweight battery options! Designed to provide the highest cranking power possible while being up to 75% lighter, Braille Battery is one of the foremost leaders in automotive racing batteries with nothing but high quality, high output batteries in mind! The B3121 battery from Braille is their lightest do-everything battery available, offering 1380 pulse cranking amps that can crank over V8 engines with ease while still coming in at under 22 pounds, half of the weight of a standard Group 34 battery! This is thanks to their Advanced AGM racing technology that allows them to put a ton of power into a very small package. Physical Specifications: BCI Group: All sizes Weight: 21lbs / 9.5kg Length: 6.6" / 168mm Width: 5.2" / 132mm Height: 6.8" / 173mm Polarity: Right Side Positive Terminal Type: Steel terminal block with M6 bolt Performance Specifications: Voltage: 12v Recharge Voltage: 14.4V – 14.6V Maintenance charge voltage: 13.8V 5s Pulse Cranking Amps (PCA): 1380 10s PDC: 124 Amp Hour (Ah): 31 Watt Hour (Wh): 372 Life Cycle @ 10% DOD: 3100 Charging Temperature 0C to 50C Discharge Temperature range -40C to +60C Storage temperature -40C to +60C *THIS BATTERY REQUIRES A CUSTOM MOUNTING SOLUTION. The size and weight are significantly smaller than a stock battery and will not be held in place by the stock battery mount*
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Innovate Motorsports - Corporate Logo
T#:28836410
Part#: 38770
In Stock at Vendor
$ 212.99 USD
Free Shipping on orders $49 and up

Features & Benefits:

Two configurable linear 0-5V analog outputs Ability to calibrate O2 sensors for maximum accuracy Includes LC-2 controller and Bosch wideband O2 sensor Comes with a program cable, manual, and a 10 ft. sensor cable Includes a 1-inch mild steel exhaust bung Innovate MTS serial in/out capability Integrated dual-color status LED (green/red) Patented DirectDigital™ wideband sensor control Positive lock connectors for all connections Real-time display data on screen or with the powerful LogWorks software Range:

AFR (Air-Fuel Ratio) range from 7.4:1 to 22.4:1 (0.5 to 1.5 lambda)

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Braille Performance Intensity Carbon Lithium-ION Battery - i48CX - 10...
This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shi
Braille - Corporate Logo
T#:558047
Part#: I48CX
Ships in 5 Business Days
$ 1,164.99 USD
Free Shipping on orders $49 and up
The ultra-lightweight, standard height I48CX lithium-ION battery from Braille Battery is a popular choice among BMW enthusiasts looking for a drop-in replacement battery that shaves off a ton of weight, 35 pounds in total! Thanks to the Group 48 design of this battery, no modifications are needed for installation. This is perfect for anyone looking to drive their car both on and off of the track, without any negative side effects, and wants a battery with a 10-15 year life span!
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Rogue Engineering - Corporate Logo
T#:553839
Part#: PP.S65.V8.B
Ships in 6 Business Days
$ 295.00 USD
Free Shipping
$ 295.00 USD
Free Shipping
Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent. The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories. These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.
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Braille - Corporate Logo
T#:558046
Part#: G30
Ships in 6 Business Days
$ 522.99 USD
Free Shipping on orders $49 and up
The G30 lithium battery from Braille is designed for the Import Tuner market (4 and 6 cylinder) for track use and has enough power for small black V8 race cars and hot rods with light electrical demands/accessories and standard compression. The G30 comes in the popular ETX 30 Group size, just like the B3121 AGM, so it is small and light enough to mount in a variety of locations. Incorporated in this battery is the same technology used in their race winning batteries used by nearly every OEM developer in classes ranging from SCCA to Formula 1.
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Braille - Corporate Logo
T#:36947237
Part#: B48-H6-L3
Ships in 4 Business Days
$ 398.99 USD
$ 398.99 USD


Burger Motorsports - Corporate Logo
T#:583132
Part#: BMSBSPGT14MM
Ships in 7 Business Days
$ 35.00 USD
Free Shipping on orders $49 and up

BMS Billet Spark Plug Gapper Tool - 14mm is an essential tool for achieving accurate and consistent spark plug gapping, ideal for automotive enthusiasts and professional mechanics alike. This precision tool helps maintain optimal plug performance by providing reliable, consistent gaps. Available in both 14mm and 12mm plug thread sizes, this tool is proudly made in the USA to deliver durability and precision.

  • Precisely gaps spark plugs for enhanced engine performance and efficiency
  • Speeds up the gapping process while ensuring accuracy and uniformity
  • Available in two sizes (14mm and 12mm) for a wider range of compatibility
  • Optional specialty feeler gauge included with 4 blades in thicknesses of .018, .020, .022, and .024
  • Made in the USA for premium quality and durability
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Innovate Motorsports - Corporate Logo
T#:22558994
Part#: INN3904
In Stock at Vendor
14% off MSRP $ 313.99

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

$ 269.00 USD
Free Shipping on orders $49 and up
14% off MSRP
$ 313.99

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

$ 269.00 USD
Free Shipping on orders $49 and up

Introducing the Innovate Motorsports MTX Digital Series "Dual Function" Gauges – now available! These 2 1/16" (52mm) gauges come with interchangeable faceplates and bezels, locking connectors for simplified installation, and MTS serial connections for seamless integration with other Innovate devices for data logging.

DISPLAY RANGE

  • Ethanol Content %: 0-100%
  • Temperature: -40-257 °F (-40-125°C)

KEY FEATURES

  • Ethanol Content
  • Error reporting for ethanol content sensor (Digital Display)
  • Fuel Temperature
  • Customizable exterior LED display
  • Programmable exterior LED color options
  • Selectable unit of measure in °F or °C
  • Programmable fuel temperature warning (outer LED)
  • 2-Configurable analog outputs
  • Ethanol Content: 0v = 0%, 5v = 100%
  • Fuel Temperature: 0v = -40 °F, 5v = 257 °F (-40-125°C)

MTX-D: Ethanol Content Percentage & Fuel Temp Gauge Kit includes Gauge (Black Faceplate, Black Bezel), Silver Bezel & White Faceplate, Harness, Program Cable (Serial), Ethanol Content Sensor, Quick Start Installation Guide.

Please note that this is a universal fitment gauge, and installation may vary depending on the vehicle.

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Vargas Turbo Technologies - Corporate Logo
T#:52270240
Part#: GARROUTT4G4045
Ships in 10 Business Days
New Item
$ 37.99 USD
Free Shipping
$ 37.99 USD
Free Shipping
Upgrade your turbocharger exhaust connection with the VTT-FAB 86mm V-Band Outlet Flange, designed for the Garrett G40-G45 frame sizes.

Rogue Engineering Power Pulley Set - E9X M3 (up to 05/2008)
For vehicles with a production date up to 05/2008 with single drive belt.
Rogue Engineering - Corporate Logo
T#:553840
Part#: PP.S65.V8.A
Ships in 8 Business Days
$ 295.00 USD
Free Shipping
$ 295.00 USD
Free Shipping
Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent. The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories. These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.
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Schrick - Corporate Logo
T#:2474
Part#: TMS2474
Ships on Jan 29, 2027
$ 6,478.60 USD
Free Shipping
$ 6,478.60 USD
Free Shipping
This is one full set of Schrick cam shafts, 4 cams total, for the S65 V8 M3 engine. These cams are the 284 degree version, and includes two intake cams and two exhaust cams. Professional installation is a must due to the complexity of the dual VAN0S V8 motor.
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Schrick - Corporate Logo
T#:2500
Part#: TMS2500
Ships on Jan 29, 2027
$ 6,478.60 USD
Free Shipping
$ 6,478.60 USD
Free Shipping
This is one full set of Schrick cam shafts, 4 cams total, for the S65 V8 M3 engine. These cams are the 292 degree version, and includes two intake cams and two exhaust cams. Professional installation is a must due to the complexity of the dual VAN0S V8 motor.
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OEM NGK Spark Plug - LKR8AP - E9x M3, E60 M5, E63 M6
We Price Match - Give Us A Call or Chat!
NGK - Corporate Logo
T#:20553
Part#: LKR8AP
In Stock
$ 20.99

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

$ 16.99 USD
Free Shipping on orders $49 and up
$ 16.99 USD
Free Shipping on orders $49 and up
BMW recommends a spark plug change interval of 37,000 miles for the S65 and S85 engines. Replace the spark plugs on your E9X M3 and E60 M5 and E63 M6 with these OEM NGK spark plugs that are a direct replacement for the factory part # 12120032273.
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Vargas Turbo Technologies - Corporate Logo
T#:52270291
Part#: S65FILTBLK
Ships in 10 Business Days
New Item
$ 89.99 USD
Free Shipping
$ 89.99 USD
Free Shipping
The VTT Billet BMW Oil Filter Housing Cap is the definitive upgrade for E9X M3 owners looking to eliminate the vulnerabilities of the factory engine components.

Vargas Turbo Technologies - Corporate Logo
T#:52094552
Part#: VTT-DCS-EWG-W-AC
Ships in 10 Business Days
New Item
$ 1,049.99 USD
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$ 1,049.99 USD
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the VTT DCS Billet Adapter with BMW Actuator is the definitive solution for converting to an electronic external wastegate.

Vargas Turbo Technologies - Corporate Logo
T#:52094551
Part#: VTT-DCS-EWG-ONLY
Ships in 10 Business Days
New Item
$ 839.99 USD
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$ 839.99 USD
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The Universal DCS System is the ultimate boost control solution for any vehicle, regardless of whether it came with factory electronic wastegate control.
Hitachi - Corporate Logo
T#:48815471
Part#: 13627525015
Ships in 6 Business Days
$ 66.99 USD
Free Shipping on orders $49 and up
The crankshaft position sensor transmits the crankshaft's position to the computer. This helps the computer to calculate proper spark and fuel control. If you're struggling with CELs, hard starts or no starts, stalling, and/or a rough idle, you may need to replace the crank position sensor.
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Vargas EWG Actuator To Garrett G25-G35 Housing Bracket - BMW EWG G25/...
For vehicles with Electronic Waste Gate
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:51778114
Part#: VTT-FAB-BMW-EWG-
Ships in 10 Business Days
New Item
$ 79.99 USD
Free Shipping
$ 79.99 USD
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The Vargas EWG Actuator Bracket is the definitive solution for enthusiasts looking to merge BMW’s advanced factory EWG control with the high-performance capabilities of Garrett G-Series turbochargers.
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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
Free Shipping on orders $49 and up
Starting at $ 1,698.99 USD
Free Shipping on orders $49 and up
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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