BMW Engine Parts

Blue Thermostat Caps (pair)

T#:54139632

Part#: BMS-TCP-BLU

Ships in 1 Business Day

$ 29.00 USD

Add to Wish List

Qty

$ 29.00 USD

Add to Wish List

Blue B58 BMW Coil Upgrade Adapter Kit - N55

T#:49857415

Part#: BMSN55CUAK

Back Ordered

$ 199.00 USD

Add to Wish List

Qty

$ 199.00 USD

Add to Wish List

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. Why Upgrade: While the N55 is a reliable platform, factory coils can struggle under high boost, heat, and load. B58 coils deliver stronger, more consistent spark, and this adapter kit ensures a clean, OEM-quality integration. Features & Benefits: Direct-fit adapter harness & mounts for straightforward B58 coil installation Plug-and-play design — no cutting, splicing, or permanent modifications Secure coil seating & alignment for consistent performance and reliability Improved ignition stability under high-load or tuned conditions, helping reduce misfires Applications: Stage 1–3 N55 builds, turbo upgrades, ethanol blends, track use, and aggressive daily driving Drivers looking to eliminate heat- and boost-related ignition issues Anyone seeking an OEM+ quality coil upgrade without a messy DIY install Result: A clean, professional installation that modernizes your ignition system and delivers reliable spark performance under all conditions. If you provide the kit’s brand/part number and whether your valve cover is stock or aftermarket, I can refine this description for precise fitment and application.

Show More Show Less

Red B58 BMW Coil Upgrade Adapter Kit - N55

T#:57086690

Part#: BMSN55CUAK-R

Ships on Sep 9, 2026

$ 199.00 USD

Add to Wish List

Qty

$ 199.00 USD

Add to Wish List

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.

Show More Show Less

TIMING CHAIN WITH TENSION RAIL

T#:57231560

Part#: 11318658027

In Stock

$ 85.67 USD

Add to Wish List

Qty

$ 85.67 USD

Add to Wish List

Upper Engine Mount

T#:51320854

Part#: 22116778610

In Stock

Sale - Save 15% $ 75.99

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

$ 64.59 USD

Add to Wish List

Qty

Sale - Save 15%

$ 75.99

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

$ 64.59 USD

Add to Wish List

Oil Level Indicator with hardware

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

Add to Wish List

Qty

Sale - Save 15%

$ 159.99

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

$ 135.99 USD

Add to Wish List

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

Aluminum Valve Cover - BMW N55 3.0L

T#:56110315

Part#: 11127570292MKT

In Stock

$ 283.99 USD

Add to Wish List

Qty

$ 283.99 USD

Add to Wish List

With Cap!

Oil Cap

T#:56110314

Part#: 11127560482

In Stock

$ 9.99 USD

Add to Wish List

Qty

$ 9.99 USD

Add to Wish List

Hydraulic Alternator Belt Tensioner Assembly

T#:55030822

Part#: 11287838797

In Stock

$ 59.99 USD

Add to Wish List

Qty

$ 59.99 USD

Add to Wish List

Valve Cover - Aluminum

T#:56110317

Part#: 11127588412MKT

In Stock

Sale - Save 9% $ 346.99

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

$ 315.20 USD

Add to Wish List

Qty

Sale - Save 9%

$ 346.99

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

$ 315.20 USD

Add to Wish List

Bremmen High Pressure Fuel Pump Sprocket - BMW N57 3.0L

T#:50381429

Part#: 13527800025

In Stock

Sale - Save 21% $ 75.99

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

$ 60.38 USD

Add to Wish List

Qty

Sale - Save 21%

$ 75.99

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

$ 60.38 USD

Add to Wish List

The N57 High-Pressure Fuel Pump Sprocket is a crucial component in BMW vehicles equipped with the N57 diesel engine. It drives the high-pressure fuel pump, ensuring precise fuel delivery for efficient combustion and optimal engine performance. This sprocket is also important in linking the timing chain system from the crankshaft to the fuel pump and then to the camshafts.

Show More Show Less

Fuel Pump - High Pressure

T#:57267808

Part#: 13517636881

In Stock

$ 170.54 USD

Add to Wish List

Qty

$ 170.54 USD

Add to Wish List

Accessory Belt Tensioner Assembly

T#:54995068

Part#: 11287582946

In Stock

$ 52.99 USD

Add to Wish List

Qty

$ 52.99 USD

Add to Wish List

Double roller tensioner

Aluminum Valve Cover Replacement Kit

T#:56110323

Part#: 111278463591ALKT

Ships in 1 Business Day

$ 367.19 USD

Add to Wish List

Qty

$ 367.19 USD

Add to Wish List

With oil cap!

Intake Gasket Set

T#:54995058

Part#: 11617547242

In Stock

$ 19.99 USD

Add to Wish List

Qty

$ 19.99 USD

Add to Wish List

Blue B58 BMW Coil Upgrade Adapter Kit - N54

T#:49857414

Part#: BMSN54CUAK

Ships on Sep 9, 2026

$ 199.00 USD

Add to Wish List

Qty

$ 199.00 USD

Add to Wish List

Modernize your N54 ignition system with this N54 to B58 Coil Upgrade Adapter Kit, engineered to deliver an OEM-quality conversion for improved spark energy and consistency. Designed to pair B58-style pencil coils with the factory N54 engine harness, this kit provides a clean, reversible installation—no cutting, splicing, or guesswork required. Key Features & Benefits: Direct-fit adapter solution to run B58 coils on N54 applications Plug-and-play wiring integrates with the factory N54 harness for a factory-like install Secure coil positioning helps ensure proper seating and reliable long-term fitment Improved ignition stability under higher cylinder pressures—ideal for tuned, higher-boost setups Clean, serviceable conversion that maintains a tidy engine bay and simplifies future maintenance Ideal For: Stock to heavily modified N54 builds Vehicles running elevated boost, ethanol blends, or upgraded turbo systems Owners looking to reduce ignition-related misfires and improve combustion consistency under load If you share the brand/part number of the kit and which coils you’re pairing it with, I can tailor the write-up to match the exact components and fitment notes.

Show More Show Less

Turbo & Intake Heat Shield - Gen1 B58

T#:49857410

Part#: BMSB58THS

In Stock

$ 119.00 USD

Add to Wish List

Qty

$ 119.00 USD

Add to Wish List

Keep heat where it belongs and boost where it counts with a B58 Turbo & Intake Heat Shield for BMW and Toyota Supra—an OE-plus style upgrade that helps your setup stay cooler, more consistent, and happier when you’re leaning on it. BMW’s factory heat management is fine at stock-ish levels, but once you start turning the wick up, the turbo becomes a rolling space heater. That radiant heat soaks the nearby intake tract, nudging IATs up and making performance less repeatable pull after pull. This shield steps in as a dedicated barrier between the turbo and intake components, helping reduce heat soak so you can keep intake air cooler and denser when you’re driving it like you mean it. Built with a clean, factory-inspired mindset, it’s precision-formed to wrap neatly around the B58 turbo and intake area, and it mounts using factory locations for a tidy, OEM-level install. No cutting, no permanent changes, and fully reversible—just a straightforward bolt-on that looks right at home in the engine bay. Made from durable, heat-resistant materials, it’s designed to handle the heat long-term without turning into a crispy science project. Why it matters Cuts down radiant heat from the turbocharger into the intake area Helps reduce intake air temperature creep Improves consistency during repeated pulls and hard driving Adds protection for surrounding components exposed to turbo heat Features & highlights Designed for BMW B58 and Toyota Supra applications Precision-formed for OEM-level fitment Heat-resistant construction for long-term durability Bolt-on install using factory mounting points Clean, OE-plus under-hood appearance

Show More Show Less

Turbo & Intake Heat Shield - Gen2 B58

T#:49857413

Part#: BMSG2B58THS

Ships on Sep 9, 2026

$ 119.00 USD

Add to Wish List

Qty

$ 119.00 USD

Add to Wish List

Keep heat where it belongs and boost where it counts with a B58 Turbo & Intake Heat Shield for BMW and Toyota Supra—an OE-plus style upgrade that helps your setup stay cooler, more consistent, and happier when you’re leaning on it. BMW’s factory heat management is fine at stock-ish levels, but once you start turning the wick up, the turbo becomes a rolling space heater. That radiant heat soaks the nearby intake tract, nudging IATs up and making performance less repeatable pull after pull. This shield steps in as a dedicated barrier between the turbo and intake components, helping reduce heat soak so you can keep intake air cooler and denser when you’re driving it like you mean it. Built with a clean, factory-inspired mindset, it’s precision-formed to wrap neatly around the B58 turbo and intake area, and it mounts using factory locations for a tidy, OEM-level install. No cutting, no permanent changes, and fully reversible—just a straightforward bolt-on that looks right at home in the engine bay. Made from durable, heat-resistant materials, it’s designed to handle the heat long-term without turning into a crispy science project. Why it matters Cuts down radiant heat from the turbocharger into the intake area Helps reduce intake air temperature creep Improves consistency during repeated pulls and hard driving Adds protection for surrounding components exposed to turbo heat Features & highlights Designed for BMW B58 and Toyota Supra applications Precision-formed for OEM-level fitment Heat-resistant construction for long-term durability Bolt-on install using factory mounting points Clean, OE-plus under-hood appearance

Show More Show Less

Engine Mount - Left

T#:56110324

Part#: 22116856403

Ships in 2 Business Days

$ 116.22 USD

Add to Wish List

Qty

$ 116.22 USD

Add to Wish List

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

Add to Wish List

Qty

$ 75.00 USD

Add to Wish List

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.

Show More Show Less

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

Add to Wish List

Qty

$ 9,856.00 USD

Add to Wish List

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

Show More Show Less

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

Add to Wish List

Qty

$ 9,856.00 USD

Add to Wish List

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

Show More Show Less

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

Add to Wish List

Qty

$ 9,856.00 USD

Add to Wish List

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

Show More Show Less

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

Add to Wish List

Qty

$ 10,449.00 USD

Add to Wish List

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.

Show More Show Less

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

Add to Wish List

Qty

$ 8,074.00 USD

Add to Wish List

360HP/300TQ - a complete power solution for your M3!

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

Add to Wish List

Qty

$ 8,906.00 USD

Add to Wish List

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

Show More Show Less

Starter Motor

T#:55030826

Part#: 12412354693

Ships on Sep 9, 2026

$ 129.99 USD

Add to Wish List

Qty

$ 129.99 USD

Add to Wish List

Camshaft Speed Sensor

T#:52832891

Part#: 12141743072

In Stock

Sale - Save 20% $ 39.99

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

$ 31.99 USD

Add to Wish List

Qty

Sale - Save 20%

$ 39.99

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

$ 31.99 USD

Add to Wish List

CCV Hose

T#:51391238

Part#: 11127850244

In Stock

Sale - Save 20% $ 99.99

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

$ 79.99 USD

Add to Wish List

Qty

Sale - Save 20%

$ 99.99

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

$ 79.99 USD

Add to Wish List

Oxygen Sensor Kit - F30/31 N47, E70 M57

T#:55569520

Part#: 13628589844KT2

Ships on Oct 15, 2026

Sale - Save 10% $ 770.99

This product was last offered at the strikethrough price on
07-03-2026

$ 693.88 USD

Add to Wish List

Qty

Sale - Save 10%

$ 770.99

This product was last offered at the strikethrough price on
07-03-2026

$ 693.88 USD

Add to Wish List

Oxygen sensors are used by the vehicle computer to adjust the air/fuel ratio and test vehicle emissions. This kit includes both rear Sensors.

Oil Separator Vent Hose

T#:53326231

Part#: 11617522933

In Stock

Sale - Save 20% $ 22.99

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

$ 18.39 USD

Add to Wish List

Qty

Sale - Save 20%

$ 22.99

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

$ 18.39 USD

Add to Wish List

Vacuum Pipe

T#:52586629

Part#: 11157603816

In Stock

Sale - Save 20% $ 29.99

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

$ 23.99 USD

Add to Wish List

Qty

Sale - Save 20%

$ 29.99

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

$ 23.99 USD

Add to Wish List

Alternator Pulley

T#:52164889

Part#: 12317560483

In Stock

Sale - Save 15% $ 44.99

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

$ 38.24 USD

Add to Wish List

Qty

Sale - Save 15%

$ 44.99

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

$ 38.24 USD

Add to Wish List

Is your BMW making a chirping or grinding noise at idle? The culprit is frequently a failing alternator decoupler pulley. Unlike a traditional solid pulley, this Overrunning Alternator Pulley (OAP) allows the alternator rotor to "freewheel" when engine speeds drop suddenly. This specialized function protects your BMW drive belt and belt tensioner from excessive snap-back, vibration, and "belt slap."

Prevent Catastrophic Engine Failure

Over time, the internal clutch mechanism can seize or slip, leading to accelerated wear or total serpentine belt failure. On BMW engines, a snapped belt can be ingested through the front main seal, causing catastrophic engine damage. Replacing this pulley is a cost-effective preventative maintenance step that restores smoothness to your accessory drive without the high cost of a complete alternator replacement.

Features & Benefits:

Lowers the load on the drive belt, tensioner, and AC compressor.
Stops "belt slap" and rhythmic chirping noises during deceleration and idle.
Direct Replacement with high-quality construction ensures perfect fitment and long-term durability.
Essential Maintenance for N52 engines

Show More Show Less