BMW Internal Engine Parts for BMW 6 Series F12 (2012+)

Bremmen Parts Eccentric Shaft - BMW N55 S55 3.0L

T#:36913364

Part#: 11377589883

Ships on Sep 28, 2026

Sale - Save 20% $ 614.99

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

$ 491.22 USD

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$ 491.22 USD

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This eccentric shaft is a vital component of your BMW's N55 Valvetronic system, responsible for precise control of valve lift. In the N55 engine, the Valvetronic system uses intermediate levers between the camshaft and lifters to adjust valve lift dynamically. These levers are actuated by this eccentric shaft, which is rotated by an electronically controlled motor under the direction of the engine computer.

Eccentric shaft failure is a common issue in N55 engines, often caused by inadequate lubrication due to extended oil change intervals. The most frequent failure occurs when the eccentric shaft gear wears down, leading to disengagement from the motor's worm drive. Symptoms include multiple fault codes, such as P1014 (Shaft Parity Error), P1017 (Shaft Sensor Plausibility), P1023 (Valvetronic Adjustment Range), and P10E1 (Valvetronic System No Travel Detected).

If your BMW is experiencing Valvetronic-related fault codes, a failing eccentric shaft could be the source of the problem. Opt for this premium direct replacement from Bremmen Parts to restore your Valvetronic system's functionality and ensure a durable, high-quality repair.

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Ferrea High Performance Valve Spring Kit for BMW N55/S55

T#:23416526

Part#: FER-HPVSK-N55

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$ 1,049.99 USD

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$ 1,049.99 USD

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Maximize your N55 or S55 engine's performance with Ferrea Valve Springs and Retainers, precision components crafted from chromoly alloy. These springs undergo special thermal treatment, ensuring exceptional durability even in extreme racing conditions. Addressing issues like valve binding, breakage, and float, Ferrea valve springs are meticulously heat-treated and stress-relieved, providing stability for high-lift and high-RPM racing engines while minimizing load loss. Precision CNC machined titanium retainers offer superior strength and stability. Ferrea's Spring Seat Locators, made from 4140 chromoly alloy, guarantee precise tolerances and a flat, parallel spring pad with a hard Nitride surface treatment for exceptional toughness and anti-wear characteristics. Please note that installation requires the expertise of an engine builder.

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ARP Head Stud Kit - BMW N55/S55

T#:23416542

Part#: ARP-HSK-S56-CA

In Stock

$ 999.99 USD

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$ 999.99 USD

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BMW N55 S55 Ferrea High Performance Valve Kit

T#:23416508

Part#: FER-HPVK-S55-T-3

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$ 929.99 USD

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$ 929.99 USD

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Increase the power output of your N55/S55 engine with the high-performance Ferrea valve kit. Renowned as the industry's most reliable extreme-duty valves, they're meticulously crafted from aerospace-grade alloys, employing an exclusive two-step slow forging process for optimal grain flow and material structure integrity. A 48-hour heat treatment and stress-relieving process enhance molecular integrity. The valves feature avionics-quality hard chrome and a specially applied hard tip. Standard size: 32mm intake / 28mm exhaust, with a triple groove valve design. Compatible with factory valve locks ("Valve Keepers"), the kit includes 12x Intake Valves and 12x Exhaust Valves for a comprehensive engine upgrade!

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CP-Carrillo Connecting Rod Set - N63/S63 Pro-Xtreme

For Use With Aftermarket Pistons Only!

T#:26238404

Part#: CAR-CRS-S63-XT

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$ 2,899.99 USD

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$ 2,899.99 USD

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5150 AutoSport Pro-Xtreme Connecting Rods, manufactured by CP-Carrillo, are designed to handle extreme horsepower and high RPM applications for BMW N63 and S63 Engines. The Pro-Xtreme design is specifically tailored to handle up to 2000 horsepower, making them suitable for high-performance turbo/drag racing or street/strip applications. They are also designed to handle high engine speeds of up to 9500 RPM, which is necessary for achieving maximum power output. Each connecting rod is precisely engineered to meet the demands of high-performance engines using advanced manufacturing techniques such as computer-aided design (CAD) and finite element analysis (FEA). The Pro-Xtreme Connecting Rods are designed to be durable, reliable, and capable of handling the extreme stresses and forces generated by high-horsepower and high-rpm engines.

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Performance N55 Main Bearing Set

T#:26238415

Part#: 5150-HPMBS-N55

Ships in 3 Business Days

$ 549.99 USD

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$ 549.99 USD

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5150 High Performance Coated Main Bearing Sets are made for the demands of high performance engine builds. Treated shells and coated by Calico to reduce friction, these bearings allow your engine to generate more power and resist "spinning" under stress. These coated bearings also have thermal resistant properties that not only perform in high HP applications like forced induction or race use, but also help prevent sudden engine failure in the event of oil pressure loss. 5150 bearings have proven themselves on and off the track, lasting longer and outperforming other bearings on the market.

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CP-Carrillo Pro-Xtreme Connecting Rod Set - BMW N63/S63

T#:23681818

Part#: CAR-CRS-S63-XTT

Ships in 3 Business Days

$ 2,999.99 USD

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Tailored for exceptional performance, the Pro-Xtreme design is crafted to handle up to 2000 horsepower and 9500 RPM. Constructed from high-strength, aircraft-grade steel, these connecting rods feature a tapered small-end, allowing them to be paired with your OEM pistons.

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CP Forged Piston Set - N63 - Pro-Xtreme 9.5:1

T#:26238409

Part#: CP-FPS-N63-XT-HD

Ships in 3 Business Days

$ 2,464.99 USD

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$ 2,464.99 USD

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The 5150 AutoSport Pro-Xtreme Forged Pistons, made by CP-Carrillo, are designed to handle extreme horsepower and high RPM applications for BMW N63 engines. Constructed from high-strength, aircraft-grade steel, these pistons are engineered to withstand the forces generated by high-powered engines. The Pro-Xtreme Piston design is specifically engineered to handle up to 2000 horsepower, making these pistons suitable for high-performance turbo/drag racing or street/strip applications. They are also designed to handle high engine speeds of up to 9500 RPM, which is necessary for achieving maximum power output. Each piston is precisely fabricated to meet the demands of high-performance engines using advanced manufacturing techniques such as computer-aided design (CAD) and finite element analysis (FEA). The Pro-Xtreme Pistons are designed to be durable, reliable, and capable of handling the extreme stresses and forces generated by high-horsepower and high-rpm engines. Includes: - Pistons - HD Wrist Pins - PVD Rings - Pins - Locks - Spec Sheet

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Crankshaft

T#:38924612

Part#: 11217580483

Special Order: No Guaranteed ETA

Sale - Save 3% $ 1,608.99

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

$ 1,560.27 USD

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Sale - Save 3%

$ 1,608.99

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

$ 1,560.27 USD

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Direct replacement N55 crankshaft for a fraction of the cost of Genuine

OEM Ina Intake Hydraulic Tappet - BMW N52 N54 N55 N20 S55

We Price Match - Give Us A Call or Chat!

T#:591661

Part#: 11337548690

In Stock

$ 15.99 USD

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$ 15.99 USD

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Hydraulic valve lifter

Performance Rod Bearing Set - N55

T#:26238416

Part#: 5150-HPRBS-N55

Ships in 3 Business Days

$ 399.99 USD

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$ 399.99 USD

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5150 High Performance Coated Rod Bearing Sets are made for the demands of high performance engine builds. Treated shells and coated by Calico to reduce friction, these bearings allow your engine to generate more power and resist "spinning" under stress. These coated bearings also have thermal resistant properties that not only perform in high HP applications like forced induction or race use, but also help prevent sudden engine failure in the event of oil pressure loss. 5150 bearings have proven themselves on and off the track, lasting longer and outperforming other bearings on the market.

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JE Pistons BMW N55B30 84mm Bore 9.5:1 Compression Ratio -14.7 Dish FS...

T#:590161

Part#: 338096

In Stock at Vendor

$ 1,649.99 USD

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$ 1,649.99 USD

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BMW N55/S55 Valves By Super Tech

T#:39329323

Part#: SUP-HPVK-S55-32/

Ships in 3 Business Days

$ 1,143.99 USD

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$ 1,143.99 USD

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5150 AutoSport & Cat Cams Camshaft Set - 278* / 272* - 11.20mm / 10.3...

T#:39126861

Part#: N55CCCAM-278-272

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$ 1,799.99 USD

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$ 1,799.99 USD

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Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in the most popular enthusiast upgrade specs to ensure there is an option for whatever your power goal is. This N55 camshaft set is designed to bring your engine to the next level! Whether it's for street or track purposes, this camshaft set offers the power gains and throttle response needed to push your N55 to its limits. These camshafts are a direct fit for seamless installation and with some simple tuning can produces great power while retaining factory-like idle and driveability. Valvetronic and Dual VANOS functionality can be fully retained, or with an aftermarket throttle body, the valvetronic system can be locked open, providing even more control.

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JE Pistons BMW N55B30

T#:33612897

Part#: 3380966

In Stock at Vendor

$ 1,649.99 USD

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$ 1,649.99 USD

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JE Pistons for the N55 engine are precision-engineered for BMW’s single-turbo 3.0L inline-six. These forged pistons are built for high-performance applications, offering exceptional strength and durability under extreme conditions. Designed to handle high boost pressures and increased power, they feature optimized crown shapes and valve reliefs to improve combustion efficiency. Their lightweight construction reduces rotational mass, enhancing throttle response and engine efficiency. With customizable options for compression ratios and coatings, JE Pistons are ideal for tuning and motorsport setups, ensuring reliable performance in both street and track environments.

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JE Pistons BMW N55 Single

T#:33846578

Part#: 338096S

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$ 349.99 USD

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$ 349.99 USD

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B

JE Pistons BMW N55B30 Piston - 3.307 in Bore

Transform your BMW N55B30 engine with the high-performance JE Pistons Piston, engineered for those who demand power, efficiency, and reliability. With a precise 3.307-inch bore size, this piston is designed to enhance combustion dynamics, resulting in improved horsepower and torque. Crafted from premium forged aluminum, the JE piston is built to endure the rigors of high-performance driving, making it an ideal choice for both track enthusiasts and everyday drivers.

Key Features:

Optimized Design: Each piston is meticulously crafted to ensure a perfect fit for the N55B30 engine, maximizing combustion efficiency and overall engine performance.
3.307-Inch Bore: This specific bore size enhances airflow and combustion efficiency, enabling your engine to unleash its full power potential while maintaining reliability.
Durable Forged Construction: Made from high-quality forged aluminum, this piston offers exceptional strength and lightweight properties, making it capable of withstanding extreme conditions found in performance applications.
Enhanced Combustion Characteristics: The uniquely designed piston crown promotes efficient fuel burn, reducing the chances of detonation and improving power delivery across the RPM range.
Trusted Performance: JE Pistons are renowned in the automotive community for their durability and reliability, making them a preferred choice for high-performance builds.

Applications:

Fits BMW N55B30 Engines – Perfect for high-performance applications, whether on the track or on the street.
Ideal for builders looking to enhance their engine’s capabilities, ensuring maximum power and efficiency.

Technical Specifications:

Bore Size: 3.307 inches, specifically designed for optimal performance in the N55B30 engine.
Material: Premium forged aluminum for lightweight and strength.

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ARP Head Stud Kit BMW S55 Custom Age 625+

N55 Engines it is a MUST to drill and tap!

T#:41458801

Part#: ARP-HSK-S55-CA

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$ 899.99 USD

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$ 899.99 USD

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Upgrade your S55 with the ARP Head Stud Kit BMW S55 Custom Age 625+ and drive with confidence under pressure.

BMW N55B30 JE Pistons

T#:33612902

Part#: 338097

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$ 1,649.99 USD

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$ 1,649.99 USD

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JE Pistons for the N55 engine are precision-engineered for BMW’s single-turbo 3.0L inline-six. These forged pistons are built for high-performance applications, offering exceptional strength and durability under extreme conditions. Designed to handle high boost pressures and increased power, they feature optimized crown shapes and valve reliefs to improve combustion efficiency. Their lightweight construction reduces rotational mass, enhancing throttle response and engine efficiency. With customizable options for compression ratios and coatings, JE Pistons are ideal for tuning and motorsport setups, ensuring reliable performance in both street and track environments.

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BMW N55B30 ULTRA SERIES

T#:33612895

Part#: 367879

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$ 1,674.99 USD

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$ 1,674.99 USD

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JE Pistons for the N55 engine are high-performance forged pistons designed for BMW’s single-turbo 3.0L inline-six. Built for strength and durability under high boost, they feature optimized crown shapes and valve reliefs for better combustion. The lightweight design reduces rotational mass, improving throttle response and efficiency. With options for compression ratios and coatings, these pistons are perfect for tuning and motorsport use, delivering reliable performance on the street or track.

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BMW N55 JE Piston ULTRA SERIES

T#:33612896

Part#: 367880

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$ 1,674.99 USD

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$ 1,674.99 USD

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JE Pistons for the N55 engine are high-performance forged pistons designed for BMW’s single-turbo 3.0L inline-six. Built for strength and durability under high boost, they feature optimized crown shapes and valve reliefs for better combustion. The lightweight design reduces rotational mass, improving throttle response and efficiency. With options for compression ratios and coatings, these pistons are perfect for tuning and motorsport use, delivering reliable performance on the street or track.

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BMW Internal Engine Parts for BMW 6 Series F12 (2012+)

Sub-Categories

Bremmen Parts Eccentric Shaft - BMW N55 S55 3.0L

Ferrea High Performance Valve Spring Kit for BMW N55/S55

ARP Head Stud Kit - BMW N55/S55

BMW N55 S55 Ferrea High Performance Valve Kit

CP-Carrillo Connecting Rod Set - N63/S63 Pro-Xtreme

Performance N55 Main Bearing Set

CP-Carrillo Pro-Xtreme Connecting Rod Set - BMW N63/S63

CP Forged Piston Set - N63 - Pro-Xtreme 9.5:1

Crankshaft

OEM Ina Intake Hydraulic Tappet - BMW N52 N54 N55 N20 S55

Performance Rod Bearing Set - N55

JE Pistons BMW N55B30 84mm Bore 9.5:1 Compression Ratio -14.7 Dish FS...

BMW N55/S55 Valves By Super Tech

5150 AutoSport & Cat Cams Camshaft Set - 278* / 272* - 11.20mm / 10.3...

JE Pistons BMW N55B30

JE Pistons BMW N55 Single

Key Features:

Applications:

Technical Specifications:

ARP Head Stud Kit BMW S55 Custom Age 625+

BMW N55B30 JE Pistons

BMW N55B30 ULTRA SERIES

BMW N55 JE Piston ULTRA SERIES

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