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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Turner Motorsport - Corporate Logo
T#:34147756
Part#: N5X-WPC-RB
In Stock
Sale - Save 20% $ 519.99

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

$ 415.99 USD
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Sale - Save 20%
$ 519.99

This product was last offered at the strikethrough price on
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$ 415.99 USD
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Upgrade your engine build with Turner's WPC-treated Race Series Bearings, engineered for serious performance enthusiasts. Starting with ACL’s high-performance bearing shells, these Race Series bearings are built to withstand extreme RPMs and stress. Utilizing a "Duraglide" tri-metal construction and a high-strength overlay plate, these bearings offer superior oiling and heat resistance for high-RPM operation.

Our WPC-treated bearings take ACL’s already impressive design and enhance it even further. The WPC treatment process strengthens and smooths the bearing surface by firing high-speed, ultra-fine particles at the bearing shells, reducing friction and improving durability. This advanced surface treatment ensures smoother operation and improved heat dissipation, which are critical for any high-performance engine.

Key Features:

Duraglide Tri-Metal Construction: ACL's Race Series bearings feature a high-strength overlay for enhanced performance. Optimized Oiling: Designed to promote better oil flow during high-RPM conditions. Precise Fitment: Manufactured with OEM-level precision using micron tolerance machining. WPC-Treated for Strength: Surface treatment adds strength and reduces friction for improved engine performance. No Flash Plating: Allows for better heat transfer and bearing retention. Thermal Discharge Process: Smoother, stronger components through WPC’s unique thermal discharge technology. Enhanced Heat and Friction Resistance: Built to combat the biggest enemies of high-performance engines. Don’t settle for standard bearings—choose Turner Motorsport WPC-treated Race Series Bearings for the ultimate engine performance upgrade. Perfect for your next engine rebuild or rod bearing service!

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Turner Motorsport - Corporate Logo
T#:34147754
Part#: M5X-WPC-RB
In Stock
Sale - Save 25% $ 475.99

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

$ 356.99 USD
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Sale - Save 25%
$ 475.99

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

$ 356.99 USD
Free Shipping on orders $49 and up

Upgrade your engine build with Turner's WPC-treated Race Series Bearings, engineered for serious performance enthusiasts. Starting with ACL’s high-performance bearing shells, these Race Series bearings are built to withstand extreme RPMs and stress. Utilizing a "Duraglide" tri-metal construction and a high-strength overlay plate, these bearings offer superior oiling and heat resistance for high-RPM operation.

Our WPC-treated bearings take ACL’s already impressive design and enhance it even further. The WPC treatment process strengthens and smooths the bearing surface by firing high-speed, ultra-fine particles at the bearing shells, reducing friction and improving durability. This advanced surface treatment ensures smoother operation and improved heat dissipation, which are critical for any high-performance engine.

Key Features:

Duraglide Tri-Metal Construction: ACL's Race Series bearings feature a high-strength overlay for enhanced performance. Optimized Oiling: Designed to promote better oil flow during high-RPM conditions. Precise Fitment: Manufactured with OEM-level precision using micron tolerance machining. WPC-Treated for Strength: Surface treatment adds strength and reduces friction for improved engine performance. No Flash Plating: Allows for better heat transfer and bearing retention. Thermal Discharge Process: Smoother, stronger components through WPC’s unique thermal discharge technology. Enhanced Heat and Friction Resistance: Built to combat the biggest enemies of high-performance engines. Don’t settle for standard bearings—choose Turner Motorsport WPC-treated Race Series Bearings for the ultimate engine performance upgrade. Perfect for your next engine rebuild or rod bearing service!

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Turner Motorsport - Corporate Logo
T#:34147790
Part#: N5X-WPC-MB
In Stock
$ 607.99 USD
Free Shipping on orders $49 and up

Upgrade your engine build with Turner's WPC-treated Race Series Bearings, engineered for serious performance enthusiasts. Starting with ACL’s high-performance bearing shells, these Race Series bearings are built to withstand extreme RPMs and stress. Utilizing a "Duraglide" tri-metal construction and a high-strength overlay plate, these bearings offer superior oiling and heat resistance for high-RPM operation.

Our WPC-treated bearings take ACL’s already impressive design and enhance it even further. The WPC treatment process strengthens and smooths the bearing surface by firing high-speed, ultra-fine particles at the bearing shells, reducing friction and improving durability. This advanced surface treatment ensures smoother operation and improved heat dissipation, which are critical for any high-performance engine.

Key Features:

Duraglide Tri-Metal Construction: ACL's Race Series bearings feature a high-strength overlay for enhanced performance. Optimized Oiling: Designed to promote better oil flow during high-RPM conditions. Precise Fitment: Manufactured with OEM-level precision using micron tolerance machining. WPC-Treated for Strength: Surface treatment adds strength and reduces friction for improved engine performance. No Flash Plating: Allows for better heat transfer and bearing retention. Thermal Discharge Process: Smoother, stronger components through WPC’s unique thermal discharge technology. Enhanced Heat and Friction Resistance: Built to combat the biggest enemies of high-performance engines. Don’t settle for standard bearings—choose Turner Motorsport WPC-treated Race Series Bearings for the ultimate engine performance upgrade. Perfect for your next engine rebuild or main bearing service!

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N52 Valvetronic Camshaft Adjuster Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5416764
Part#: 11377548388TMSKT
In Stock
Sale - Save 19% $ 220.99

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

$ 179.28 USD
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Sale - Save 19%
$ 220.99

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

$ 179.28 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.

Check Valve - 11367541692
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:37655979
Part#: 11367541692
In Stock
Sale - Save 11% $ 32.99

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

$ 29.37 USD
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Sale - Save 11%
$ 32.99

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

$ 29.37 USD
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A damaged, leaking, or missing vacuum check valve can lead to engine performance problems, trigger the check engine light, and potentially cause your vehicle to fail an emissions test.
BMW N52 Valve Cover & PCV Valve Refresh Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:21735875
Part#: VALVECVRN52KT
In Stock
Sale - Save 11% $ 465.99

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

$ 414.91 USD
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Sale - Save 11%
$ 465.99

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

$ 414.91 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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N52 Valvetronic Camshaft Adjusting Unit - 11377548388
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:36066208
Part#: 11377548388
In Stock
Sale - Save 20% $ 148.99

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

$ 119.13 USD
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Sale - Save 20%
$ 148.99

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

$ 119.13 USD
Free Shipping on orders $49 and up

This Valvetronic variable valve timing actuator is designed to optimize engine performance by adjusting the eccentric shaft, effectively increasing or decreasing valve lift and duration as needed. By dynamically controlling valve timing, it enhances power delivery, fuel efficiency, and overall driving performance.

A failing actuator can lead to noticeable power loss, reduced performance, and an illuminated check engine light. Restore your BMW's performance with this premium replacement from Bremmen Parts, designed to meet or exceed OE specifications.

Features:

Exact Fitment: Engineered to perfectly match your BMW’s specifications for seamless installation. Durable Construction: Built with high-strength materials to resist engine heat, vibration, and wear. Precision Manufacturing: Designed to OE dimensions for accurate clearances and alignment. Optimal Performance: Restores proper timing and functionality at all engine speeds. Get your BMW back on the road with reliable performance and confidence.

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ECS - Corporate Logo
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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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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Exhaust Valve - Priced Each
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Febi - Corporate Logo
T#:381763
Part#: 11347505731
In Stock
$ 26.99

This product was last offered at the strikethrough price on
10-07-2026

$ 22.99 USD
Limited Qty Sale
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$ 26.99

This product was last offered at the strikethrough price on
10-07-2026

$ 22.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up

Bremmen Camshaft Position Sensor - E46 E39 E60 E83 Z3 Z4
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:640145
Part#: 12147518628
Ships on Dec 16, 2026
Sale - Save 16% $ 31.99

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

$ 26.87 USD
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Sale - Save 16%
$ 31.99

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

$ 26.87 USD
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A bad cam sensor can cause a variety of problems from hard starting to stalling at low speeds. Cam sensor replacement has been known to cure many drivability issues
Complete Cylinder Head Replacement Kit - BMW M52TU M54
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15710818
Part#: 11127514540KT
Ships on Dec 28, 2026
Sale - Save 1% $ 2,332.99

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

$ 2,299.57 USD
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$ 2,332.99

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

$ 2,299.57 USD
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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Bremmen Parts - Corporate Logo
T#:1195922
Part#: 11127575422
In Stock
Sale - Save 3% $ 6.59

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

$ 6.39 USD
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Sale - Save 3%
$ 6.59

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

$ 6.39 USD
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The sleeves that go in each cylinder of the cylinder cover


Febi - Corporate Logo
T#:16873849
Part#: 11127565869
In Stock
$ 7.99

This product was last offered at the strikethrough price on
09-04-2026

$ 7.13 USD
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$ 7.13 USD
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Insulation sleeve for the spark plug insert on then valve cover.
Febi Intake Valve - E39, E46, E53, E60, E83, Z3, Z4
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Febi - Corporate Logo
T#:374076
Part#: 11341438385
Ships in 2 Business Days
$ 23.45

This product was last offered at the strikethrough price on
08-13-2026

$ 19.91 USD
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$ 19.91 USD
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Replacement intake valve
Febi Intake Hydraulic Tappet
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Febi - Corporate Logo
T#:381750
Part#: 11337548690
Ships in 2 Business Days
$ 24.99 USD
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Hydraulic valve lifter

Rocker Arm - Set Of 8
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:56507832
Part#: 11337559797
Ships on Dec 2, 2026
New Item
Sale - Save 10% $ 99.99

This product was last offered at the strikethrough price on
10-08-2026

$ 89.99 USD
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$ 99.99

This product was last offered at the strikethrough price on
10-08-2026

$ 89.99 USD

Intake Hydraulic Tappet - Priced Each
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:56797117
Part#: 11337548690
Ships on Dec 14, 2026
New Item
Sale - Save 10% $ 10.99

This product was last offered at the strikethrough price on
10-08-2026

$ 9.89 USD
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Sale - Save 10%
$ 10.99

This product was last offered at the strikethrough price on
10-08-2026

$ 9.89 USD
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Oil Pump Chain
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:26271802
Part#: 11417576915
In Stock
Sale - Save 15% $ 18.99

This product was last offered at the strikethrough price on
09-16-2026

$ 16.14 USD
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Sale - Save 15%
$ 18.99

This product was last offered at the strikethrough price on
09-16-2026

$ 16.14 USD
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Febi Rocker Arm
Exhaust
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Febi - Corporate Logo
T#:370956
Part#: 11337559797
Special Order: No Guaranteed ETA
$ 30.99 USD
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$ 30.99 USD
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Located on cam shaft
Crankshaft Position Sensor
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Febi - Corporate Logo
T#:16175684
Part#: 13627525015
Special Order: No Guaranteed ETA
$ 46.99 USD
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Febi - Corporate Logo
T#:56291055
Part#: 11367529405
Special Order: No Guaranteed ETA
New Item
$ 36.99 USD
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This Febi Bilstein Cylinder Head Oil Check Valve (Non-Return Valve) is designed to keep oil right where it belongs.

Febi - Corporate Logo
T#:56291040
Part#: 11367522288
Special Order: No Guaranteed ETA
New Item
$ 142.99 USD
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Keep your BMW’s VANOS system functioning at its peak with this Febi Bilstein Intake Camshaft Adjuster.