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BMW Engine Parts

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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ECS - Corporate Logo
T#:49996974
Part#: 059235LA01
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06-14-2026

$ 23.99 USD
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$ 23.99 USD
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If you're experiencing hard starting, flaky charging, or other electrical issues, your engine ground strap may be the culprit. On older BMWs, the engine ground strap is a thin, non-insulated cable that spans from the engine mount arm to the frame horn. Despite the seemingly simple nature of this part, on older cars, it is known to cause massive headaches. Due to its non-insulated design, years of exposure to water, dirt, and road salt will cause the wire to corrode, ultimately leading to complete failure. A break in this cable will cause an open circuit, resulting in issues with the vehicle's electrical system and potentially leading to a no-start condition.

To solve this issue, ECS has engineered an exact-fit, upgraded ground strap for your BMW! Unlike its OEM counterpart, this design features insulated, large-gauge copper wire for dependable conductivity and long-lasting durability. Additionally, factory-style lugs are zinc-coated, crimped, and soldered, ensuring protection against corrosion and oxidation.

Whether you're replacing a visibly corroded strap or proactively preventing failure, this solution from ECS is sure to provide lasting performance and protection.

FEATURES

Direct-fit replacement and upgrade for E30 (318i/is), E36, E39, E46, and others Solves intermittent grounding issues caused by aging OEM straps Clean, stealthy design that fits seamlessly in factory engine bays Factory length and lug orientation for drop-in fitment 2 AWG tinned copper cable for excellent conductivity and corrosion resistance Zinc-coated lugs, crimped and soldered to resist moisture and oxidation Black UL1015-grade insulation withstands oil, heat, and abrasion Discreet ECS label for a clean, OEM+ look Replaces OEM part numbers 12421737755 and 12421714262.

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ECS - Corporate Logo
T#:49996976
Part#: 059261LA01
In Stock
New Item
Sale - Save 25% $ 29.99

This product was last offered at the strikethrough price on
06-14-2026

$ 22.49 USD
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Sale - Save 25%
$ 29.99

This product was last offered at the strikethrough price on
06-14-2026

$ 22.49 USD
Free Shipping

If you're experiencing hard starting, flaky charging, or other electrical issues, your engine ground strap may be the culprit. On E70/E71 BMWs, the engine ground strap is a thin, non-insulated cable that spans from the left engine mount arm to the frame horn. Despite the seemingly simple nature of this part, on older cars, it is known to cause massive headaches. Due to its non-insulated design, years of exposure to water, dirt, and road salt will cause the wire to corrode, ultimately leading to complete failure. A break in this cable will cause an open circuit, resulting in issues with the vehicle's electrical system and potentially leading to a no-start condition.

To solve this issue, ECS has engineered an exact-fit, upgraded ground strap for your BMW X5/X6! Unlike its OEM counterpart, this design features insulated, large-gauge copper wire for dependable conductivity and long-lasting durability. Additionally, factory-style lugs are zinc-coated, crimped, and soldered, ensuring protection against corrosion and oxidation.

Whether you're replacing a visibly corroded strap or proactively preventing failure, this solution from ECS is sure to provide lasting performance and protection.

FEATURES

Direct-fit replacement and upgrade for E70 X5 and E71 X6 applications Solves intermittent grounding issues caused by aging OEM straps Clean, stealthy design that fits seamlessly in factory engine bays Factory length and lug orientation for drop-in fitment 2 AWG tinned copper cable for excellent conductivity and corrosion resistance Zinc-coated lugs, crimped and soldered to resist moisture and oxidation Black UL1015-grade insulation withstands oil, heat, and abrasion Discreet ECS label for a clean, OEM+ look Replaces OEM part number 12427557027.

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ECS - Corporate Logo
T#:49613460
Part#: 057120LA01
Ships on Jan 5, 2027
New Item
Sale - Save 25% $ 101.99

This product was last offered at the strikethrough price on
06-14-2026

$ 76.49 USD
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Sale - Save 25%
$ 101.99

This product was last offered at the strikethrough price on
06-14-2026

$ 76.49 USD
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Designed to fix a known weak point for the MINI B3X and B4X engines, the ECS billet aluminium oil filter housing cap is a direct replacement for the factory plastic cap. The OEM plastic part is infamous for cracks, stripped threads, and rounded hex heads—often failing during routine oil changes and turning basic maintenance into a frustrating, time-consuming repair.

The engineers at ECS have designed a precision-machined billet aluminium upgrade that eliminates those issues, delivering strength, durability, and consistent fitment. An integrated drain plug allows you to drain the filter housing cleanly before removal, reducing spills and mess for a faster, cleaner oil service.

Replaces OEM MINI part number 11428575907.

FEATURES

Fixes common OEM plastic failures, including cracking, stripped threads, and rounded hex heads Precision-machined billet aluminum construction for superior strength and longevity Black anodized coating to prevent oxidation Integrated drain plug allows clean, mess-free oil changes Improves serviceability, reliability, and underhood appearance

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Bav Auto Tools - Corporate Logo
T#:580415
Part#: B8800108
In Stock
Sale - Save 55% $ 19.99

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

$ 8.99 USD
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Sale - Save 55%
$ 19.99

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

$ 8.99 USD
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This universal stretch belt installer can aid in drive belt installation. Recommended in conjunction with ​B8800123

ECS - Corporate Logo
T#:3729869
Part#: 11127646555P
In Stock
Sale - Save 50% $ 1.99

This product was last offered at the strikethrough price on
05-15-2026

$ 0.99 USD
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Sale - Save 50%
$ 1.99

This product was last offered at the strikethrough price on
05-15-2026

$ 0.99 USD
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ECS - Corporate Logo
T#:5858452
Part#: 3PK968
In Stock
Sale - Save 78% $ 27.99

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

$ 6.02 USD
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Sale - Save 78%
$ 27.99

This product was last offered at the strikethrough price on
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$ 6.02 USD
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Replaces BMW # 11288638616 & 11285A04DA2 ECS Tuning Performance Kevlar-reinforced belts give you that extra peace of mind! Kevlar reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM style belts. ECS Tuning Performance Kevlar-reinforced belts have been put through a series of multiple tests: Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.
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ECS - Corporate Logo
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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Black Forest Industries - Corporate Logo
T#:50934267
Part#: BFI-BMW-E9X-M1
Ships on Sep 8, 2026
New Item
$ 302.99 USD
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These Stage 1 mounts provide the structural rigidity needed to handle increased boost levels and higher torque loads while dampening the vibrations typical of the BMW straight-six.

Black Forest Industries - Corporate Logo
T#:50934268
Part#: BFI-BMW-F8X-M1
Ships on Sep 8, 2026
New Item
$ 349.99 USD
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By upgrading to a solid-core poly design, you eliminate the risk of fluid-filled mount failure while gaining a significantly more stable drivetrain platform.

Power Pulley DPK Belt Kit
For vehicles with production date from 6/2008
Active Autowerke - Corporate Logo
T#:50934275
Part#: 13-001D
Ships in 3 Business Days
New Item
$ 75.00 USD
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$ 75.00 USD
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Free Up Real S65 Power — Engineered the Turner Way Your S65 is already making the power. This kit simply lets you keep more of it. The Active Autowerke Power Pulley Kit for the BMW E9X M3 reduces parasitic drag at the crankshaft, trimming rotational mass and freeing up horsepower that would otherwise be consumed by accessory drive load. The result is a measurable increase in rear-wheel output without sacrificing the balance, cooling capacity, or long-term durability expected from a properly engineered BMW upgrade. The crank pulley is CNC-machined from billet 6061 aluminum and finished with a hard-coat anodize for durability under sustained high-RPM operation. Unlike undersized pulleys that compromise system function, this design maintains proper operating characteristics while delivering real-world gains. Late-2007 production E9X M3 models transitioned to a double-sided (DPK) A/C belt configuration. Rather than forcing a workaround, Active Autowerke developed a proper DPK-compatible solution — including the correct matched belt. Applicable kits also include a spare DPK belt for added insurance. Dyno testing on a Mustang chassis dyno confirms gains of 10–12+ rear-wheel horsepower on an otherwise stock vehicle. Installation is fully reversible and requires no permanent modification. Product Highlights 10–12+ RWHP gain verified on stock S65 engines Complete bolt-on system CNC-machined 6061 billet aluminum crank pulley Hard-coat anodized finish for durability Includes correct replacement drive and A/C belts Spare DPK belt included where applicable Compatible with manual and DCT-equipped E9X M3 Reduces parasitic drag and rotational mass Designed to maintain proper operating temperatures Works in conjunction with Active Autowerke performance software Available for single-sided and double-sided (DPK) belt configurations Fitment Information Confirm whether your E9X M3 is equipped with a single-sided or double-sided (DPK) A/C belt prior to ordering to ensure correct application. A properly engineered solution for enthusiasts who want measurable gains while preserving OEM-level refinement and reliability.
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Supercharger Kit Level 1 - E46 330 2003+
For model years 2003+ ~ Call in to provide vin before purchase
Active Autowerke - Corporate Logo
T#:50899201
Part#: 12-016M45
Ships in 10 Business Days
New Item
$ 9,856.00 USD
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$ 9,856.00 USD
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Add proven forced induction performance to your E46 330i with the Active Autowerke Supercharger Kit. Designed to deliver a significant horsepower increase without sacrificing daily usability, this system operates safely on 91 to 93 octane pump fuel and integrates directly with the factory ECU. Active Autowerke’s dyno developed calibration manages ignition timing, fueling, VANOS function, and rev limits through the stock DME for consistent, predictable results. Power delivery remains smooth and repeatable with OEM like drivability, and the system can be returned to stock configuration if needed. The included self contained oil cooling circuit keeps installation straightforward without modifying the factory oil system. For E46 owners seeking a complete, well engineered bolt on solution, this kit offers substantial, reliable gains. Key Features Rotrex C38-81 trim supercharger 8 PSI boost pressure CNC machined supercharger bracket with hardware Self contained oil system with front mount oil cooler Six higher flow fuel injectors Active Autowerke/Bosch bypass valve High temperature silicone hoses with stainless clamps Mandrel bent aluminum tubing for improved flow Active Autowerke performance air filter (K&N on select models) Active Autowerke dyno tuned software Complete mounting hardware, plumbing, hoses, and clamps Illustrated installation manual and guide 1 year warranty with technical support Performance Specifications Power: 320 BHP @ 7000 RPM Torque: 260 lb ft @ 5400 RPM Boost Level: 8.0 PSI
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Supercharger Kit Level 1 - E46 328 '99-'02
For model years 1999-2002 ~ Call in to provide vin before purchase
Active Autowerke - Corporate Logo
T#:50899197
Part#: 12-016M438
Ships in 10 Business Days
New Item
$ 9,856.00 USD
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$ 9,856.00 USD
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Add proven forced induction performance to your E46 with the Active Autowerke 328i Supercharger Kit. Engineered to work seamlessly with your factory ECU and 91 to 93 octane pump fuel, this system uses dyno developed software to precisely manage ignition timing, fueling, VANOS, and rev limits through the stock DME. The result is smooth, repeatable power delivery with OEM-like drivability and the ability to return the vehicle to stock if desired. A self contained oil cooling system keeps installation clean without interfering with the factory oil circuit. For E46 owners looking to approach M3 level performance without the full swap, this complete bolt-on solution delivers substantial gains with proven reliability. Key Features Rotrex C38-81 trim supercharger 8 PSI boost pressure CNC machined supercharger bracket with hardware Self contained oil system with front mount cooler Six higher flow fuel injectors Active Autowerke/Bosch bypass valve High temperature silicone hoses with stainless clamps Mandrel bent aluminum charge tubing Active Autowerke performance air filter (K&N on select models) Active Autowerke dyno tuned software Complete hardware and illustrated instructions 1 year warranty with tech support Performance Power: 320 BHP @ 7000 RPM Torque: 260 lb ft @ 5400 RPM Boost: 8.0 PSI
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E46 M3 Prima Plus + Supercharger With 600HP Upgrade Kit
For SMG Transmissions Only ~ Call in to provide vin before purchase
Active Autowerke - Corporate Logo
T#:50934251
Part#: V12-035S
Ships in 10 Business Days
New Item
$ 10,449.00 USD
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$ 10,449.00 USD
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As producer of one of the finest working supercharger systems for the BMW E46 M3, Active Autowerke is proud to introduce the PRIMA PLUS supercharger system capable of exceeding 500 WHP running on pump drawn 93 octane. The PRIMA PLUS is an upgrade kit to the existing PRIMA supercharger system designed to create MORE horsepower.
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Black Forest Industries - Corporate Logo
T#:50934269
Part#: BFI-BMW-TRANS-01
Ships on Sep 8, 2026
New Item
$ 69.99 USD
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This kit is a "must-have" for any E36, E46, or E9X owner looking to tighten up their drivetrain's foundation and ensure long-term mechanical reliability.
Supercharger Kit Level 1 - E46 3330i
For model years 1999-2002 ~ Call in to provide vin before purchase
Active Autowerke - Corporate Logo
T#:50899198
Part#: 12-016M430
Ships in 10 Business Days
New Item
$ 9,856.00 USD
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$ 9,856.00 USD
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Add proven forced induction performance to your E46 330i with the Active Autowerke Supercharger Kit. Designed to deliver a significant horsepower increase without sacrificing daily usability, this system operates safely on 91 to 93 octane pump fuel and integrates directly with the factory ECU. Active Autowerke’s dyno developed calibration manages ignition timing, fueling, VANOS function, and rev limits through the stock DME for consistent, predictable results. Power delivery remains smooth and repeatable with OEM like drivability, and the system can be returned to stock configuration if needed. The included self contained oil cooling circuit keeps installation straightforward without modifying the factory oil system. For E46 owners seeking a complete, well engineered bolt on solution, this kit offers substantial, reliable gains. Key Features Rotrex C38-81 trim supercharger 8 PSI boost pressure CNC machined supercharger bracket with hardware Self contained oil system with front mount oil cooler Six higher flow fuel injectors Active Autowerke/Bosch bypass valve High temperature silicone hoses with stainless clamps Mandrel bent aluminum tubing for improved flow Active Autowerke performance air filter (K&N on select models) Active Autowerke dyno tuned software Complete mounting hardware, plumbing, hoses, and clamps Illustrated installation manual and guide 1 year warranty with technical support Performance Specifications Power: 320 BHP @ 7000 RPM Torque: 260 lb ft @ 5400 RPM Boost Level: 8.0 PSI
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Rotrex C38 Supercharger Kit - Level 1 (OBD2)
For OBD2 vehicles w/ Automatic Transmission Only
Active Autowerke - Corporate Logo
T#:50899186
Part#: 12-003A
Ships in 10 Business Days
New Item
$ 8,074.00 USD
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$ 8,074.00 USD
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360HP/300TQ - a complete power solution for your M3!

Black Forest Industries - Corporate Logo
T#:50934264
Part#: BFI-BMW-90-01
Ships on Sep 8, 2026
New Item
$ 199.99 USD
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Eliminate the "drive-line slop" common in the E36 and E46 chassis with this Stage 1 Engine Mount kit.
PRIMA Supercharger Kit (Non-Intercooled) - E46 M3
For SMG Transmissions Only ~ Call in to provide vin before purchase
Active Autowerke - Corporate Logo
T#:50899202
Part#: 12-021S
Ships in 10 Business Days
New Item
$ 8,906.00 USD
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$ 8,906.00 USD
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Co-developed with Frank Smith of TuningTechFS, the Active Autowerke PRIMA Supercharger Kit delivers a proven entry point into forced induction for the E46 M3. The system is engineered around efficiency, repeatability, and upgrade potential, with a baseline configuration that can grow beyond 500 WHP through available Level 1 and Level 2 packages. PRIMA focuses on clean, practical design. This is a fully bolt-on, non intercooled setup that installs without custom fabrication and can be reverted to stock if required. The modular architecture also allows straightforward progression to higher output configurations. As expected from Active Autowerke, the kit enhances overall performance while preserving the sharp throttle response and balanced character of the S54-powered M3. PRIMA Supercharger Kit Key Features Rotrex C38-92 supercharger assembly Active Autowerke GEN 9 intake manifold plenum Active Autowerke dual blow off valve configuration Active Autowerke green performance filter with cover Alpha N calibration with SIMON 4 interface included High capacity fuel injectors Colder heat range spark plugs Dedicated self contained oil cooling circuit Pre assembled hoses, clamps, and installation hardware Compatible with Level 1 and Level 2 upgrade paths Baseline Dynojet Results Boost: 5.8 PSI Stock Power: 285.4 WHP @ 7500 RPM Stock Torque: 232.36 lb ft @ 5250 RPM Supercharged Power: 426.69 WHP @ 8150 RPM Supercharged Torque: 297.99 lb ft @ 7200 RPM
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