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BMW Internal Engine Parts for BMW X Series E83 (2004-2010)

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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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N52 Valvetronic Camshaft Adjuster Replacement Kit

T#:5416764

Part#: 11377548388TMSKT

Ships on Aug 12, 2026

Sale - Save 19% $ 220.99

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

$ 179.20 USD

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Sale - Save 19%

$ 220.99

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

$ 179.20 USD

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Includes new Valvetronic motor, gasket, and hardware. The Valv-tronic adjuster unit changes the the timing shaft to adjust the valve timing.

Glyco "Yellow" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E...

T#:375823

Part#: 11211706847

In Stock

$ 136.06

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

$ 125.04 USD

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$ 125.04 USD

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Standard bore

BMW N52 Valve Cover & PCV Valve Refresh Kit

T#:21735875

Part#: VALVECVRN52KT

In Stock

Sale - Save 12% $ 465.99

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

$ 411.03 USD

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Sale - Save 12%

$ 465.99

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

$ 411.03 USD

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Maintaining the peak performance and reliability of your BMW N52 engine is essential for a smooth and enjoyable driving experience. One of the most effective ways to achieve this is by replacing critical components like the valve cover, crankcase vent hose, angle connector with heating element, and cylinder sleeve. In this article, we'll delve into the numerous benefits of upgrading these vital parts, ensuring your BMW N52 operates at its best. Optimized Engine Performance: Replacing the valve cover, crankcase vent hose, angle connector, and cylinder sleeve enhances your BMW N52's engine performance. The valve cover plays a crucial role in sealing the engine, preventing oil leaks and ensuring optimal valve operation. When you upgrade these components, you reduce the risk of performance-robbing oil leaks and maintain precise valve timing, resulting in improved horsepower and torque. Enhanced Reliability: Reliability is paramount for any BMW owner. These components, when aged or damaged, can lead to severe engine issues. By replacing them, you significantly reduce the likelihood of unexpected breakdowns or costly repairs, ensuring your BMW N52 engine runs smoothly and reliably for years to come. Improved Fuel Efficiency: An efficiently operating engine not only performs better but also consumes less fuel. The replacement of these components leads to better combustion, reduced emissions, and ultimately improved fuel efficiency. This means fewer trips to the gas station and a lighter environmental footprint. Reduced Maintenance Costs: Regular maintenance and repairs can add up over time. By proactively replacing the valve cover, crankcase vent hose, angle connector, and cylinder sleeve, you mitigate the risk of more extensive engine damage that could lead to expensive repairs down the road. In the long term, this can translate into significant cost savings. Extended Engine Lifespan: The longevity of your BMW N52 engine is directly tied to the quality and condition of its components. When you invest in high-quality replacements, you're effectively extending the lifespan of your engine. This not only preserves the value of your BMW but also allows you to enjoy its performance for years to come. Precise Temperature Control: The angle connector with heating element is vital for maintaining optimal engine temperature, especially in cold weather. A malfunctioning or worn-out connector can disrupt temperature control, affecting engine performance. Replacing this component ensures consistent and precise temperature management. Customized Upgrades: When replacing these components, you have the opportunity to choose high-performance or specialized alternatives, allowing you to customize your BMW N52 to your preferences. Whether you prioritize power, efficiency, or specific driving conditions, there are options available to tailor your engine's performance accordingly. Included in the BMW N52 Valve Cover & PCV Valve Refresh Kit: 6 Cylinder Sleeves 1 Alternator Mounting Screw Set 1 Angle Connector with Heating Element 1 Valve Cover - Gasket Included 1 Crankcase Vent Hose

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Complete Cylinder Head Replacement Kit - BMW M52TU M54

T#:15710818

Part#: 11127514540KT

Ships on Oct 1, 2026

Sale - Save 2% $ 2,332.99

This product was last offered at the strikethrough price on
06-10-2026

$ 2,277.27 USD

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Sale - Save 2%

$ 2,332.99

This product was last offered at the strikethrough price on
06-10-2026

$ 2,277.27 USD

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When duty calls and its time to replace or refresh your cylinder head, you'll need quite a few components. Look no further because we've collected all those parts into one kit including notable items like 7 liters of BMW oil, 1 gallon of coolant, all seals and gaskets needed and required hardware all available in one kit at the push of a button!

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WPC Treated Crank Bearing Set

T#:585720

Part#: 11211706847WPCKT

In Stock

Sale - Save 3% $ 250.99

This product was last offered at the strikethrough price on
06-14-2026

$ 243.46 USD

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Qty

Sale - Save 3%

$ 250.99

This product was last offered at the strikethrough price on
06-14-2026

$ 243.46 USD

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What's better than using new crank bearings in your next engine build? WPC-treated bearings! What is WPC, you ask? WPC is a surface treatment that reduces friction and adds strength - two improvements that benefit internal engine components. Ultra-fine particles are fired at the surface at very high speeds, like shot-peening - but much, much smaller. The parts come out smoother and stronger due to thermal discharge. The two largest enemies of any high-performance engine are heat and friction - and WPC has found a way to reduce both. What are you waiting for? Use WPC-treated bearings on your next engine build or crank service!

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Glyco "Yellow" Crankshaft Bearing Shell - Set - E30, E36, E39, E46, E...

T#:375824

Part#: 11211706850

In Stock at Vendor

$ 126.61

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

$ 118.92 USD

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$ 118.92 USD

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59.75MM(+0.25) bore

Glyco "Green" Crankshaft Bearing Shell - Set - E39, E46, E53, E83, Z3...

T#:374671

Part#: 11211706848

Ships in 1 day

$ 194.32 USD

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$ 194.32 USD

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Standard bore

BMW N54 N55 WPC Treated Genuine BMW Rod Bearing Set

T#:585258

Part#: 11247628034WPCKT

Ships in 1 day

Sale - Save 3% $ 803.88

This product was last offered at the strikethrough price on
06-14-2026

$ 779.76 USD

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Qty

Sale - Save 3%

$ 803.88

This product was last offered at the strikethrough price on
06-14-2026

$ 779.76 USD

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BMW N54 N55 WPC Treated Genuine BMW Rod Bearing Set

Ensure optimal engine performance with the BMW N54 N55 WPC Treated Genuine BMW Rod Bearing Set. This genuine BMW rod bearing set, treated with WPC technology, is specifically designed for BMW N54 and N55 engines, providing several benefits for engine longevity and reliability. Engineered with precision and quality in mind, it offers:

Enhanced durability and wear resistance for extended engine life
Reduced friction and heat buildup for improved engine performance
WPC treatment for superior lubrication and protection against metal-to-metal contact
Genuine BMW quality and reliability for peace of mind

Upgrade your BMW N54 or N55 engine with this high-quality rod bearing set for enhanced performance and longevity.

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Performance Camshaft Set - 238/272

T#:26904914

Part#: SCH-N52-238/272

Special Order: No Guaranteed ETA

$ 1,749.99 USD

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$ 1,749.99 USD

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Glyco "White" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E3...

T#:374670

Part#: 11211706849

Back Ordered

$ 177.99

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

$ 172.99 USD

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$ 172.99 USD

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Standard bore

Glyco "White" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E3...

T#:374672

Part#: 11211706852

Back Ordered

$ 111.99

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

$ 108.99 USD

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$ 108.99 USD

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59.75MM(+0.25) bore

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