BMW Engine Parts

OEM Bosch Fuel Injector Replacement Kit - BMW S58 3.0L

T#:51426465

Part#: BS58FIRKT

In Stock

$ 276.99

This product was last offered at the strikethrough price on
08-07-2026

$ 267.99 USD

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$ 267.99 USD

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This Fuel Injector Replacement Kit includes new injectors and hardware to service your fuel injection system, eliminating rough idle, low power, and check engine lights due to faulty fuel injectors.

OEM Bosch Fuel Injector Replacement Kit - BMW B58 3.0L (Gen2 B58C B58...

T#:51356042

Part#: BB58G2FIRKT

In Stock

$ 990.99

This product was last offered at the strikethrough price on
03-31-2026

$ 740.99 USD

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$ 740.99 USD

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This Fuel Injector Replacement Kit includes new injectors and hardware to service your fuel injection system, eliminating rough idle, low power, and check engine lights due to faulty fuel injectors.

Blue Thermostat Caps (pair)

T#:54139632

Part#: BMS-TCP-BLU

Ships in 1 Business Day

$ 29.00 USD

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$ 29.00 USD

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Red B58 BMW Coil Upgrade Adapter Kit - N55

T#:57086690

Part#: BMSN55CUAK-R

Ships on Sep 22, 2026

$ 199.00 USD

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$ 199.00 USD

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Upgrade your N55 ignition system with the N55 → B58 Coil Upgrade Adapter Kit, engineered for a seamless, plug-and-play conversion. This kit lets you run modern B58-style pencil coils on your N55 without modifying the factory harness or compromising valve cover integrity.

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Spark Plugs - Set Of Four zr7si332s

T#:50934294

Part#: 12120035531KT3

In Stock

$ 39.99 USD

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$ 39.99 USD

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Over time, excessive carbon build up and eroded electrodes degrade ignition performance, leaving your engine running well below its potential.

Knock Sensor

T#:54388475

Part#: 13627636937

In Stock

$ 29.99 USD

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$ 29.99 USD

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Keep your ignition timing razor-sharp and your engine safe from destructive detonation. This replacement Knock Sensor acts as your engine's first line of defense, constantly listening for pre-ignition "pinging" or knocking.

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OEM Bosch Fuel Injector Replacement Kit - BMW B48 2.0L (Gen2 B46D B46...

T#:51356041

Part#: BB48G2FIRKT

In Stock

$ 658.99

This product was last offered at the strikethrough price on
03-31-2026

$ 492.99 USD

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$ 492.99 USD

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This Fuel Injector Replacement Kit includes new injectors and hardware to service your fuel injection system, eliminating rough idle, low power, and check engine lights due to faulty fuel injectors.

Active Autowerke Rotrex Traction Fluid - 1 Liter

T#:57616348

Part#: RTF-1L

Ships in 3 Business Days

$ 240.00 USD

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$ 240.00 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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Ignition Coil - Priced Each

T#:50934300

Part#: 12131748018BKT

In Stock at Vendor

$ 86.99

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

$ 78.99 USD

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$ 78.99 USD

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When a coil starts to fail, that spark gets weak or disappears entirely costing you horsepower, and ruining your drive. Swapping in a fresh set of coils is the quickest way to kill those misfire codes

MINI Fuel Pump - Supply Module

T#:54388518

Part#: 16117300477

Ships in 2 Business Days

$ 354.99

This product was last offered at the strikethrough price on
06-15-2026

$ 350.99 USD

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$ 350.99 USD

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On the street or at the track, volume and pressure are everything when it comes to fuel. A degrading fuel pump doesn't just rob your BMW of horsepower—it risks dangerous lean conditions when you're pushing the engine to its limits. When it’s time to replace a soft or failing pump, don't gamble on no-name budget brands. Go back to the source with this high-quality Bosch replacement fuel pump.

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Rod Bearing Set - Standard (48.00 Mm)

T#:55821723

Part#: 11241715701

In Stock

$ 159.99 USD

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$ 159.99 USD

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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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Main Bearing Set (Standard)

T#:55857747

Part#: 11211725917

Ships in 2 Business Days

$ 90.99

This product was last offered at the strikethrough price on
07-15-2026

$ 85.99 USD

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$ 85.99 USD

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BFI Transmission Mounts - Stage 1 - BMW E30 / E36 / E46 / E9X / Z3 / ...

T#:50934269

Part#: BFI-BMW-TRANS-01

Ships on Sep 28, 2026

$ 69.99 USD

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$ 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.

Black Forest Industries Engine Mount - Stage 1 (Pair) - BMW E8X / E9X...

T#:50934267

Part#: BFI-BMW-E9X-M1

Ships on Sep 28, 2026

$ 302.99 USD

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$ 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.

Active Autowerke - S65 Power Pulley DPK Belt Kit - E9X M3

For vehicles with production date from 6/2008

T#:50934275

Part#: 13-001D

Ships in 3 Business Days

$ 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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Black Forest Industries Engine Mounts - Stage 1 - BMW E30 / E36 / E46...

T#:50934264

Part#: BFI-BMW-90-01

Ships on Sep 28, 2026

$ 199.99 USD

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$ 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.

Rotrex C38 Supercharger Kit - Level 1 (OBD2)

For OBD2 vehicles w/ Automatic Transmission Only

T#:50899186

Part#: 12-003A

Ships in 10 Business Days

$ 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 Engine Mounts - Stage 1 - BMW F8X M2 / M3 / M...

T#:50934268

Part#: BFI-BMW-F8X-M1

Ships on Sep 28, 2026

$ 349.99 USD

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$ 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.

Supercharger Kit Level 1 - E46 330 2003+

For model years 2003+ ~ Call in to provide vin before purchase

T#:50899201

Part#: 12-016M45

Ships in 10 Business Days

$ 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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E46 M3 Prima Plus + Supercharger With 600HP Upgrade Kit

For SMG Transmissions Only ~ Call in to provide vin before purchase

T#:50934251

Part#: V12-035S

Ships in 10 Business Days

$ 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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Supercharger Kit Level 1 - E46 3330i

For model years 1999-2002 ~ Call in to provide vin before purchase

T#:50899198

Part#: 12-016M430

Ships in 10 Business Days

$ 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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PRIMA Supercharger Kit (Non-Intercooled) - E46 M3

For SMG Transmissions Only ~ Call in to provide vin before purchase

T#:50899202

Part#: 12-021S

Ships in 10 Business Days

$ 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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Supercharger Kit Level 1 - E46 328 '99-'02

For model years 1999-2002 ~ Call in to provide vin before purchase

T#:50899197

Part#: 12-016M438

Ships in 10 Business Days

$ 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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OEM Bosch Fuel Injector - BMW S58 B48E

T#:51391239

Part#: 0261500502

In Stock

$ 37.99

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

$ 36.99 USD

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$ 36.99 USD

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Replace wearing or old injectors with these new OEM ones!

OEM Bosch Fuel Injector Replacement Kit - BMW B48E 2.0L

T#:51426471

Part#: BB48EFIRKT

In Stock

$ 183.99

This product was last offered at the strikethrough price on
08-05-2026

$ 177.99 USD

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$ 177.99 USD

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This Fuel Injector Replacement Kit includes new injectors and hardware to service your fuel injection system, eliminating rough idle, low power, and check engine lights due to faulty fuel injectors.

Remanufactured Alternator

T#:57267768

Part#: 12317616126

Special Order: No Guaranteed ETA

$ 571.99 USD

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$ 571.99 USD

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Keep your BMW's vital electronics powered and your engine running at peak efficiency with a premium remanufactured alternator from Bosch.

Starter

T#:57267806

Part#: 12418625995

Special Order: No Guaranteed ETA

$ 463.99 USD

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$ 463.99 USD

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Bosch starter units deliver the high-torque cranking performance required to reliably start modern high-compression BMW engines under all thermal conditions.

Starter Solenoid

T#:57231530

Part#: 12411427080

Special Order: No Guaranteed ETA

$ 78.99 USD

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$ 78.99 USD

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When you are at the track or gearing up for a weekend backroad drive, the last thing you need is a sluggish starter holding your BMW back.

Remanufactured Alternator - 12V - 170A

T#:57267766

Part#: 12317605478

Special Order: No Guaranteed ETA

$ 499.99 USD

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$ 499.99 USD

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Maintain peak battery performance and protect your vehicle's complex electrical architecture with a motorsport-tested, factory-grade charging replacement.

Starter - Remanufactured

T#:57267807

Part#: 12418621839

Special Order: No Guaranteed ETA

$ 342.99 USD

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$ 342.99 USD

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Oil Filter

T#:57231534

Part#: 7B0115561

Special Order: No Guaranteed ETA

$ 9.99 USD

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$ 9.99 USD

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Protect your engine on the road and at the track with maximum-efficiency oil filtration engineered for demanding performance applications.

Starter

T#:57304035

Part#: SR3295N

Special Order: No Guaranteed ETA

$ 441.99 USD

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$ 441.99 USD

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This new starter delivers crisp power and rapid engine speed recovery, avoiding the typical voltage drop issues associated with worn original units.

Fuel Filter

T#:57267771

Part#: 13321709535

Special Order: No Guaranteed ETA

$ 83.99 USD

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$ 83.99 USD

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Protect your precision engine performance with a high-grade OEM fuel filter replacement manufactured by Bosch.

AL41X Remanufactured Alternator

T#:57231540

Part#: 12311466084

Special Order: No Guaranteed ETA

$ 286.99 USD

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$ 286.99 USD

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Ensure your BMW or European vehicle maintains uninterrupted power under demanding driving conditions with this premium remanufactured alternator by Bosch.

Remanufactured Alternator - 12V - 150 A

T#:57267763

Part#: AL0757X

Special Order: No Guaranteed ETA

$ 430.99 USD

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$ 430.99 USD

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This high-output Bosch remanufactured alternator ensures your ignition system and performance electronics receive clean, steady amperage under high-demand driving conditions.

Remanufactured Alternator

T#:57267767

Part#: 12317561004

Special Order: No Guaranteed ETA

$ 695.99 USD

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$ 695.99 USD

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This Bosch remanufactured alternator delivers the rock-solid current required to keep your ignition, fuel management, and chassis electronics operating at peak efficiency under demanding conditions.

High Pressure Fuel Pump

T#:57725174

Part#: 13537804411

Special Order: No Guaranteed ETA

$ 209.99 USD

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$ 209.99 USD

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This Bosch High-Pressure Fuel Pump restores your high-pressure direct injection system to factory-fresh performance.

Starter - Remanufactured

T#:57304037

Part#: 12417843530

Special Order: No Guaranteed ETA

$ 412.99 USD

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$ 412.99 USD

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Ensure your high-performance engine cranks reliably every time with an OE-quality starter motor from Bosch.

Remanufactured Starter

T#:57376671

Part#: SR71XKT

Back Ordered

$ 342.99

This product was last offered at the strikethrough price on
08-23-2026

$ 212.99 USD

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$ 212.99 USD

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The Bosch SR71X Remanufactured Starter delivers the precise, high torque cranking performance needed to keep your vehicle starting cleanly on the street or at the track

BMW Alternator 150 Amp - Bosch AL0839X

T#:57376634

Part#: AL0839XKT

Back Ordered

$ 476.86

This product was last offered at the strikethrough price on
08-23-2026

$ 422.86 USD

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$ 422.86 USD

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Protect your BMW's electrical performance on the road and track with the Bosch AL0839X remanufactured alternator. Designed to handle high demand electrical loads under spirited driving conditions

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