BMW Engine Parts

TIMING CHAIN WITH TENSION RAIL

T#:57231560

Part#: 11318658027

In Stock

$ 85.67 USD

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$ 85.67 USD

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Upper Engine Mount

T#:51320854

Part#: 22116778610

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Sale - Save 15% $ 75.99

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

$ 64.59 USD

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$ 75.99

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

$ 64.59 USD

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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

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$ 159.99

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

$ 135.99 USD

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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

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$ 283.99 USD

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With Cap!

Oil Cap

T#:56110314

Part#: 11127560482

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$ 9.99 USD

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$ 9.99 USD

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Hydraulic Alternator Belt Tensioner Assembly

T#:55030822

Part#: 11287838797

In Stock

$ 59.99 USD

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$ 59.99 USD

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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

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$ 346.99

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

$ 315.20 USD

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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

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$ 75.99

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

$ 60.38 USD

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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.

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Fuel Pump - High Pressure

T#:57267808

Part#: 13517636881

In Stock

$ 170.54 USD

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$ 170.54 USD

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Accessory Belt Tensioner Assembly

T#:54995068

Part#: 11287582946

In Stock

$ 52.99 USD

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$ 52.99 USD

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Double roller tensioner

Intake Gasket Set

T#:54995058

Part#: 11617547242

In Stock

$ 19.99 USD

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$ 19.99 USD

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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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Starter Motor

T#:55030826

Part#: 12412354693

Ships on Sep 9, 2026

$ 129.99 USD

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$ 129.99 USD

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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

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$ 39.99

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

$ 31.99 USD

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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

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$ 99.99

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

$ 79.99 USD

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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

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$ 770.99

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

$ 693.88 USD

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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

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$ 22.99

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05-03-2026

$ 18.39 USD

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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

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$ 29.99

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

$ 23.99 USD

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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

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$ 44.99

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05-03-2026

$ 38.24 USD

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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

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Fuel Pump - High Pressure

T#:55030831

Part#: 13518605102

Ships on Oct 23, 2026

$ 279.99 USD

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$ 279.99 USD

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Engine Oil Level Sensor

T#:53255650

Part#: 12617607909

In Stock

Sale - Save 20% $ 215.99

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

$ 172.79 USD

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$ 215.99

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

$ 172.79 USD

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Replace Your Old Oil Level Sensor!

A/C Tensioner Pulley

T#:53538115

Part#: 11282245087

In Stock

Sale - Save 20% $ 27.99

This product was last offered at the strikethrough price on
05-30-2026

$ 22.39 USD

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$ 27.99

This product was last offered at the strikethrough price on
05-30-2026

$ 22.39 USD

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Valve Cover Gasket - Set

T#:54068660

Part#: 11127587804

In Stock

Sale - Save 15% $ 25.99

This product was last offered at the strikethrough price on
05-30-2026

$ 22.09 USD

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$ 25.99

This product was last offered at the strikethrough price on
05-30-2026

$ 22.09 USD

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Front Oxygen Sensor - Bank 1 Pre-Cat

T#:54780515

Part#: 11787558055

Ships on Oct 19, 2026

$ 99.99 USD

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$ 99.99 USD

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Friction Wheel

T#:54744786

Part#: 11287598833

Ships on Oct 19, 2026

$ 87.99 USD

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$ 87.99 USD

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Crank Case Ventilation Valve - Priced Each

T#:53326230

Part#: 11158647299

In Stock

Sale - Save 20% $ 80.99

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

$ 64.79 USD

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$ 80.99

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

$ 64.79 USD

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Performance Cylinder Head Gasket - 0.030 Inch

T#:54388449

Part#: C4308-030

Back Ordered

$ 96.99 USD

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$ 96.99 USD

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When you're building an engine—whether it's a high-revving track beast or a reliable daily driver—you only want to do the job once. Cometic’s Multi-Layer Steel (MLS) head gaskets are engineered to handle the intense cylinder pressures of high-performance applications while providing a bulletproof seal for stock replacements.

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TIMING CHAIN WITH TENSION RAIL

Upper Engine Mount

Oil Level Indicator with hardware

Aluminum Valve Cover - BMW N55 3.0L

Oil Cap

Hydraulic Alternator Belt Tensioner Assembly

Valve Cover - Aluminum

Bremmen High Pressure Fuel Pump Sprocket - BMW N57 3.0L

Fuel Pump - High Pressure

Accessory Belt Tensioner Assembly

Intake Gasket Set

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

Starter Motor

Camshaft Speed Sensor

CCV Hose

Oxygen Sensor Kit - F30/31 N47, E70 M57

Oil Separator Vent Hose

Vacuum Pipe

Alternator Pulley

Fuel Pump - High Pressure

Engine Oil Level Sensor

A/C Tensioner Pulley

Valve Cover Gasket - Set

Front Oxygen Sensor - Bank 1 Pre-Cat

Friction Wheel

Crank Case Ventilation Valve - Priced Each

Performance Cylinder Head Gasket - 0.030 Inch

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