BMW Internal Engine Parts for BMW X Series F25 (2011+)

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Rebuilding your engine or giving your cylinder head an overhaul? Internal engine components covers parts that are located within the engine block and cylinder head. Examples include: timing chains and tensioners, rocker arms, rod bolts and studs, head bolts, valve springs, connecting rods, and more. These are Genuine BMW engine parts, performance upgrades, or approved aftermarket brands that have a long track record of reliability and quality.

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Timing Chain Sprocket - Intake Camshaft
Timing Chain Sprocket - Intake Camshaft
Kolbenschmidt - Corporate Logo
T#:32549468
Part#: 11367583818
Special Order: No Guaranteed ETA
$ 92.99

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

$ 83.99 USD
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$ 83.99 USD
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The camshaft adjustment unit, also referred to as an engine timing sprocket or camshaft sprocket, is part of your BMW's VANOS system which controls the position of the camshaft and valves. If your sprocket has failed, it will be unable to properly adjust the camshaft timing. This can result in poor or delayed performance and efficiency which negatively affects driveability and engine power. This OEM Kolbenschmidt sprocket is the perfect option to restore proper timing functionality without the high BMW price tag.
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URO Variable Valve Timing Sprocket - Intake Camshaft - BMW N20 2.0L
URO Variable Valve Timing Sprocket - Intake Camshaft - BMW N20 2.0L ...
2X Entries For Our G87 M2 Sweepstakes!
URO - Corporate Logo
T#:43750198
Part#: 11367583818
In Stock
$ 187.99 USD
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$ 187.99 USD
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This sprocket is the replacement cam gear for the inlet camshaft. Replace this so your timing chain meshes perfectly with the gear teeth for optimal performance.
JE Pistons BMW N55 Single
JE Pistons BMW N55 Single
JE Piston - Corporate Logo
T#:33846578
Part#: 338096S
Back Ordered
$ 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+
ARP Head Stud Kit BMW S55 Custom Age 625+
N55 Engines it is a MUST to drill and tap!
N55 Engines it is a MUST to drill and tap!
5150 Autosport - Corporate Logo
T#:41458801
Part#: ARP-HSK-S55-CA
Back Ordered
$ 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.
5mm Single Groove Valve Keeper - Priced Each
5mm Single Groove Valve Keeper - Priced Each
Supertech - Corporate Logo
T#:21604312
Part#: KPR-5.0-7S
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$ 3.99 USD
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$ 3.99 USD
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Two required per valve, necessary use with certain supertech valves 5.0mm single groove
BMW N55B30 ULTRA SERIES
BMW N55B30 ULTRA SERIES
JE Piston - Corporate Logo
T#:33612895
Part#: 367879
Back Ordered
$ 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 N55B30 JE Pistons
BMW N55B30 JE Pistons
JE Piston - Corporate Logo
T#:33612902
Part#: 338097
Back Ordered
$ 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 N55 JE Piston ULTRA SERIES
BMW N55 JE Piston ULTRA SERIES
JE Piston - Corporate Logo
T#:33612896
Part#: 367880
Back Ordered
$ 1,674.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 1,674.99 USD
Free Shipping on orders $49 and up
Add to Wish List
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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