BMW Engine Parts

OEM Valeo Alternator - 180amp - E9X M3 S65

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T#:377508

Part#: 12317837981

In Stock

$ 630.99

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

$ 404.99 USD

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$ 404.99 USD

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This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

OEM Starter Motor - E46 M3 2001-2006

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T#:2988

Part#: 12417835735

In Stock

$ 400.99

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

$ 293.99 USD

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$ 293.99 USD

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This is the starter motor for BMW E46 M3 2001-2006 is an OEM Valeo unit.

This item fits the following BMWs:
2001-2006 E46 BMW M3. M3 Convertible
2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe
2005-2008 E85 BMW Z4 M Roadster Z4 M Coupe

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Plug And Play ReFlex Plus Install Harness - S58/B58

T#:35761669

Part#: 201-0409

In Stock

$ 213.99

This product was last offered at the strikethrough price on
01-22-2026

$ 199.99 USD

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$ 199.99 USD

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The **Precision Raceworks S58/B58 Plug-and-Play Install Harness for the Motiv ReFlex+** is certified by Motiv Motorsports and is an essential upgrade for anyone integrating a ReFlex+ into their S58 or B58 vehicle. This Harness replaces only the signal and power sub harness portion of the Motiv Reflex. Standard universal Motiv ReFlex Plus harness required for use of this Plug and Play Harness - ES#4810312 / ES#4810314 This innovative harness eliminates the need for cutting, crimping, or splicing into your factory wiring, providing a straightforward, fully reversible installation. Simply plug it in, and you're ready to go! ### Why Choose the Precision Raceworks Harness? Although the main harness included with the Motiv ReFlex+ is well-designed, its standard sub-harness requires splicing into the factory wiring. Precision Raceworks addresses this by offering a plug-and-play replacement for the sub-harness. This solution retains the high-quality main harness, avoids unnecessary costs, and simplifies installation for seamless performance. ### Key Features of the Precision Raceworks X58 Harness: - **Motiv Motorsports Certified**, ensuring complete compatibility. - **100% Plug-and-Play** for a quick, hassle-free installation. - **Compatible with Tuning Platforms** such as MHD, MHD+, EcuTek, and BM3. - **Premium Build Quality**, manufactured in an ISO 9001-certified facility using automotive-grade wiring. - **Fast Installation**, completed in as little as one hour. - **Reversible Setup**, preserving the factory harness with no permanent modifications. The Precision Raceworks harness is the ideal choice for ReFlex+ users seeking a reliable, cost-effective, and user-friendly solution without altering their vehicle's original wiring.

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BMW N54 Replacement Spark Plug Wires - Blue - 6 Pack For 601-0021 (Lo...

T#:38195384

Part#: 201-0002-1

In Stock

$ 69.99 USD

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$ 69.99 USD

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The Precision Raceworks BMW N55/N54 Relocation Replacement Spark Plug Wires are the same high-quality wires featured in our acclaimed BMW N55 High-Performance Ignition Kit. Engineered for low resistance and maximum performance, these custom-designed spark plug wires deliver exceptional reliability. Precision Raceworks is the only manufacturer worldwide to produce spark plug wires with boots specifically designed for N54 BMW engines, guaranteeing a perfect fit and superior quality.

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BMW N55 Replacement Spark Plug Wires - Black - Pack Of 6

T#:38195386

Part#: 201-0129

In Stock

$ 69.99 USD

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$ 69.99 USD

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E46 M3, MZ3 S54 OEM Valeo Alternator (New)

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T#:377735

Part#: 12317831436

In Stock

$ 522.00

This product was last offered at the strikethrough price on
07-16-2026

$ 463.99 USD

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$ 463.99 USD

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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies.

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Valeo Voltage Regulator - Valeo - E53, E60, E63, E64, E70

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T#:1196078

Part#: 12318510090

Ships in 2 Business Days

$ 91.37 USD

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$ 91.37 USD

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OEM replacement for you BMW alternator fixing charging issues

Precision Raceworks Performance Fuel Pump - Stage 2.5 (V2) - BMW E89 ...

T#:38195408

Part#: 601-0049

In Stock

$ 299.99 USD

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$ 299.99 USD

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The Precision Raceworks High Performance Fuel Pump is designed for customers looking to run all blends of E85. This kit includes a Walbro fuel pump capable of flowing up to 50% more fuel than the factory fuel pump and is 100% E85 compliant. Best of all this pump ships with the necessary lines pre-attached to keep your installation as simple as possible! By design, a fuel pump such as this is ideal for daily driving and racing applications of all kinds. This system keeps the fuel pump fully submerged in fuel regardless of tank level or the g-force the car is subjected to providing cool running temperatures allowing the pump to provide many years of service. Stage 2.5 (3.1 liters per minute) - Our Stage 2.5 bucketed fuel pump comes with a single Walbro 535 (F90000295) fuel pump. This pump can support up to 675whp (Rated for 600whp on 100% E85) and is an easy DIY task.

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Accessory Belt Tensioner Assembly

T#:594655

Part#: 11287810807

In Stock at Vendor

$ 148.53

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

$ 136.50 USD

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$ 136.50 USD

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If the accessory belt is sloppy and loose in your vehicle, your generator, and AC might not work properly. Alternatively, if your belt snaps constantly, the tensioner is too tight.

Voltage Regulator

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T#:594108

Part#: 12317603775

In Stock

$ 71.22

This product was last offered at the strikethrough price on
05-04-2026

$ 70.45 USD

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$ 70.45 USD

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Have you noticed inconsistent electrical power in your interior lately? Your voltage regulator is responsible for maintaining a constant voltage out from the alternator.

OEM Valeo Alternator - E60 M5, E63/64 M6

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T#:14835

Part#: 12317836592

Ships in 8 Business Days

$ 358.99 USD

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$ 358.99 USD

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This is a Valeo brand new 170 amp alternator. These alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an OEM alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications.

No core charge!

This item fits the following BMWs:
2006-2010 E60 BMW M5
2006-2010 E63 BMW M6

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Alternator - 150 Amp - Valeo

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T#:579634

Part#: 439590

In Stock

$ 620.35

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

$ 518.99 USD

Limited Qty Sale

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$ 620.35

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

$ 518.99 USD

Limited Qty Sale

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BMW N55 Replacement Coil Power Harness (Pack Of 6)

T#:38195401

Part#: 201-0008

Ships in 5 Business Days

$ 49.99 USD

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$ 49.99 USD

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The **BMW N55 Replacement Coil Power Harness** by Precision Raceworks is a premium, direct-fit replacement for the factory harness, designed to enhance reliability and ensure consistent power delivery to the ignition coils. Constructed with high-quality automotive-grade materials, it optimizes electrical conductivity while minimizing the risk of misfires and performance issues. ### **Key Features:** - **OEM-Compatible Design:** Plug-and-play installation for a seamless fit. - **Superior Durability:** Built with high-temperature and abrasion-resistant materials for long-lasting performance. - **Optimized Electrical Flow:** Delivers stable and reliable power to the ignition coils. - **Compatible with All N55 Engines:** Works flawlessly with both stock and upgraded ignition systems. Perfect for both daily driving and high-performance builds, the Precision Raceworks N55 Coil Power Harness ensures smooth and efficient engine operation.

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OEM Valeo Alternator - 185 amp

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T#:376244

Part#: 12317525376

Ships in 2 Business Days

$ 730.23

This product was last offered at the strikethrough price on
07-16-2026

$ 647.45 USD

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$ 647.45 USD

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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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Valeo Brand New Alternator - E89 Z4 M Coupe/Roadster

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T#:379218

Part#: 12317837691KT

Ships in 6 Business Days

$ 378.99 USD

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$ 378.99 USD

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This is a brand new Valeo alternator. BMW Alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an OEM Valeo alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications.

No core charge!

Fits the following BMW Chassis:

E89 BMW Z4 M Coupe, M Roadster

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Valeo New Alternator - 80 Amp - E34, E36

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T#:377737

Part#: 12311744564

In Stock at Vendor

$ 549.99

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

$ 533.99 USD

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$ 533.99 USD

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Brand new unit with no core charge

Hitachi Voltage Regulator - BMW E31 E32 E34 E36

T#:48850064

Part#: 12311747920

Ships in 7 Business Days

$ 37.99 USD

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$ 37.99 USD

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This voltage regulator is a crucial component that controls the alternator's output, preventing overcharging by adjusting the current to maintain a safe range of vehicle voltage, thereby protecting the battery and electrical system. Symptoms of failure include dim lights, battery warnings, or a dead battery, often requiring replacement, which can be internal or external to the alternator.

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Alternator

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T#:594101

Part#: 12318570672

In Stock at Vendor

$ 1,094.99

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

$ 1,062.99 USD

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$ 1,062.99 USD

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Replacement Alternator from Valeo

Valeo New Starter Motor - E70, E71, E82, E84, E88, E92, E93, F10, F30...

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T#:594588

Part#: 12417616502

Ships in 4 Business Days

$ 265.76 USD

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$ 265.76 USD

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Brand new unit - no core charge! Avoid messing with a core return entirely!

Precision Raceworks Upgraded Hybrid Fuel Pump - Stage 2.5 - G-Series ...

T#:34147753

Part#: 622-0284

Ships on Aug 11, 2026

$ 999.99 USD

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$ 999.99 USD

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The Precision Raceworks G-Series High Performance Primary fuel pump (Kits) are designed for customers looking to run all blends of E85. These pumps are ideal for customers looking to run a single fuel line to the front of the car and feed the high-pressure fuel pump and port injection from a single pump assembly.

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Valeo New Alternator - 230 Amp - E71, F01, F02

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T#:579635

Part#: 439640

Ships on Aug 14, 2026

$ 590.99 USD

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$ 590.99 USD

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New Replacement Alternator From Valeo - 12317603781

OEM Valeo New Alternator - 230amp

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T#:383432

Part#: 12317603782

Ships on Aug 14, 2026

$ 730.99 USD

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$ 730.99 USD

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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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High Flow Direct Injector Upgrade - BMW S63

T#:27405447

Part#: 201-0399

Ships in 10 Business Days

$ 2,454.99

This product was last offered at the strikethrough price on
03-02-2026

$ 2,299.00 USD

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$ 2,299.00 USD

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The Precision Raceworks S63 High Flow Direct Injector Upgrade is tailored to enhance the performance of BMW M5, M6, X5M, and X6M models by boosting fuel output and ensuring compatibility with Ethanol. Here's a detailed breakdown of its features and specifications: **Key Features:** 1. **Enhanced Fuel Output:** These injectors deliver 31% more fuel per injector compared to standard EU5 injectors, resulting in a substantial increase in power potential. 2. **Seamless Installation:** Designed to mirror the dimensions of stock S63 injectors and equipped with identical connectors, eliminating the need for extra harnesses or spacers during installation. 3. **Ethanol Compatibility:** Fully compatible with Ethanol (E85), allowing users to capitalize on the advantages of this fuel type. 4. **OEM-Inspired Spray Pattern:** Ensures efficient fuel delivery and optimal engine performance, replicating OEM-like spray patterns. 5. **Comprehensive Installation Guide:** Each kit includes a detailed installation guide, facilitating a smooth and trouble-free setup process. **Performance Specs:** - **Gasoline WHP Potential:** Up to 1300 WHP - **E85 WHP Potential:** Up to 975 WHP - **Flow Rate:** 20.2 g/s @ 100 bar (31% increase over stock) - **Max Operating Pressure:** 250 bar / 25MPa / 3625psi **Frequently Asked Questions:** 1. **Do these injectors require coding?** - While not obligatory, coding the injectors is highly recommended to optimize their performance and enhance idle quality by eliminating compensations specific to older injectors. 2. **What software can I use to code my injectors?** - Compatible service tools include Bimmer Geeks ProTool, BMW ISTA+, Autel MaxiSys service tools, ANSEL BM700, and potentially other software options. In summary, the Precision Raceworks S63 High Flow Direct Injector Upgrade delivers substantial performance enhancements and offers flexibility in fuel choice, empowering BMW enthusiasts to unlock the full potential of their vehicles.

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Hitachi Fuel Pump Camshaft Follower - BMW N20 N55 S55 N63 S63 B48/46 ...

T#:589968

Part#: 11327601233

Back Ordered

$ 55.00 USD

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$ 55.00 USD

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A faulty camshaft follower can damage the engine and cause incorrect valve timing.

N54 Replacement Spark Plug Wires - 6 Pack (Manifold Location) ...

T#:38195374

Part#: 201-0129-1

Back Ordered

$ 69.99 USD

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$ 69.99 USD

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The Precision Raceworks BMW N55/N54 Relocation Replacement Spark Plug Wires are the same high-quality wires featured in our acclaimed BMW N55 High-Performance Ignition Kit. Engineered for low resistance and maximum performance, these custom-designed spark plug wires deliver exceptional reliability. Precision Raceworks is the only manufacturer worldwide to produce spark plug wires with boots specifically designed for N54 BMW engines, guaranteeing a perfect fit and superior quality.

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OEM Valeo Alternator - E60 E63 E65 550i 650i 750i

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T#:379446

Part#: 12317542935KT

Back Ordered

$ 444.99 USD

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$ 444.99 USD

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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

For vehicles with production date from 03/2005.

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OEM Valeo Starter (New)

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T#:380773

Part#: 12417835737

Back Ordered

$ 593.99 USD

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$ 593.99 USD

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A failed starter will leave even the best-maintained BMW stranded. Replace your failed starter motor with this brand new replacement from Valeo. Valeo is an OEM BMW supplier - save money and by quality parts by buying them in a different box!

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OEM Valeo Alternator - 120amp - E39 E46 E53 Z3, M54 with Valeo Altern...

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T#:371896

Part#: 12317501599

In Stock

$ 323.99 USD

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$ 323.99 USD

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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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Valeo Alternator - 180 Amp - E70

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T#:377914

Part#: 12317561004

Ships in 6 Business Days

$ 482.99 USD

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Qty

$ 482.99 USD

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Brand new unit with no core charge.

Accessory Belt Tensioner

T#:31622553

Part#: 11288479475

Ships in 4 Business Days

$ 101.99

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

$ 98.99 USD

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$ 98.99 USD

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BMW N54 Replacement Spark Plug Wires - Blue - Manifold Location ...

T#:38195381

Part#: 501-0074

In Stock

$ 13.99 USD

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$ 13.99 USD

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Precision Raceworks BMW N55/N54 Relocation Replacement Spark Plug Wires are the same high-quality wires featured in our acclaimed BMW N55 High-Performance Ignition Kit. Engineered with low-resistance, high-performance technology, these spark plug wires are a completely custom design. As the sole manufacturer worldwide to produce spark plug wires with boots specifically tailored for N54 BMW engines, Precision Raceworks guarantees precise fitment and superior quality.

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Alternator - 220 Amp

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T#:594099

Part#: 12317560989

Ships on Aug 7, 2026

$ 574.96 USD

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Qty

$ 574.96 USD

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Replacement Alternator from Valeo

Mubea Mechanical Belt Tensioner - E70

T#:1195871

Part#: 11287799851

In Stock

$ 123.99

This product was last offered at the strikethrough price on
03-24-2026

$ 88.99 USD

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$ 88.99 USD

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Original equipment German-made tensioner for alternator, A/C and power steering system

Alternator

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T#:594100

Part#: 12317561002

In Stock at Vendor

$ 794.99

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

$ 771.99 USD

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$ 771.99 USD

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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

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Valeo Alternator - E53

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T#:377182

Part#: 12317540994

Special Order: No Guaranteed ETA

$ 384.99 USD

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$ 384.99 USD

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Restore charging system voltage with a new alternator

Hitachi Engine Camshaft Position Sensor - BMW S63M N63B/N63M/N63R S68...

T#:48850059

Part#: 13628697982

Ships in 7 Business Days

$ 48.99 USD

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$ 48.99 USD

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The camshaft position sensor communicates the position of the camshaft 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 cam position sensor.

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Mubea Mechanical Accessory Belt Tensioner - BMW B46/48 B58

T#:26971839

Part#: 11288580360

In Stock at Vendor

$ 177.99

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

$ 158.99 USD

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$ 158.99 USD

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Accessory belt tensioners provide tension to the belt drive system, ensuring the belt is able to properly turn engine accessories without slipping. If your tensioner has failed, replace it with a brand-new unit to ensure proper water pump and alternator functionality.

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Hitachi Camshaft Position Sensor - BMW E9X F3X F8X N20 N52 N55 S55 ...

T#:48815454

Part#: 13627525014

Ships in 7 Business Days

$ 40.00 USD

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$ 40.00 USD

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The camshaft position sensor communicates the position of the camshaft 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 cam position sensor.

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Hitachi Ignition Coil - BMW M54 S54 N62 N73

T#:48815451

Part#: 12131712219

Ships in 7 Business Days

$ 57.99 USD

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$ 57.99 USD

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Get your spark back with new ignition coils.

T#:48815450

Part#: 12218591724

Ships in 7 Business Days

$ 124.99 USD

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Qty

$ 124.99 USD

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Distributes power to glow plugs to preheat them for ignition.

Hitachi Ignition Coil - BMW B58 B48/46 B38

T#:48850056

Part#: 12137619385

Ships in 7 Business Days

$ 64.99 USD

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$ 64.99 USD

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Get your engine's spark back with new ignition coils.

Hitachi Fuel Supply Module - BMW N20 N55 N26

T#:48850079

Part#: 16117243975

Ships in 7 Business Days

$ 344.99 USD

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$ 344.99 USD

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Delivers fuel from the tank to the engine.

Hitachi Engine Crankshaft Position Sensor - BMW N52 N54 S85 S65 S63 ...

T#:48815471

Part#: 13627525015

Ships in 7 Business Days

$ 66.99 USD

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$ 66.99 USD

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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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