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BMW Internal Engine Parts

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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ECS - Corporate Logo
T#:396674
Part#: 017301ECS01
In Stock
Sale - Save 25% $ 67.99

This product was last offered at the strikethrough price on
06-13-2026

$ 50.99 USD
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Sale - Save 25%
$ 67.99

This product was last offered at the strikethrough price on
06-13-2026

$ 50.99 USD
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If you're not sure if your Vanos seals are bad then the only question you need to answer is if you've replaced them. Every unit from the factory came with the same failure prone o-rings and seals, even the re-manufactured units you can still get today. The only real fix is by replacing the seals and o-rings with material that is built to last in the oiled, extreme temperature environment found in these kits. 

A premium product replacement with easy to follow instructions makes rebuilding your Vanos unit a must. Even thought the power loss is barely felt it's the opposite result once you replace the seals, every car that gets rebuilt ends up wowing the customer and all of them saying they didn't realize what they lost. 

There are a number of symptoms that will plague your car as a result of these failing seals such as erratic idle, engine hesitation, stalling, and increased fuel consumption to name a few. If you've been chasing down any of these symptoms with no fix then this could be your issue.

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Bavarian Autosport - Corporate Logo
T#:17871154
Part#: 11311432177
In Stock
Sale - Save 20% $ 27.99

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

$ 22.39 USD
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Sale - Save 20%
$ 27.99

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

$ 22.39 USD
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Bavarian Autosport - Corporate Logo
T#:17871158
Part#: 11367583208
In Stock
Sale - Save 20% $ 199.99

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

$ 159.99 USD
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Sale - Save 20%
$ 199.99

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

$ 159.99 USD
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Bavarian Autosport - Corporate Logo
T#:17871157
Part#: 11367524954
In Stock
Sale - Save 20% $ 5.99

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

$ 4.79 USD
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$ 5.99

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

$ 4.79 USD
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Holds the camshaft gear to the camshaft, measures M10X1X94.

ECS - Corporate Logo
T#:585807
Part#: 11217849234WPC
In Stock
Sale - Save 35% $ 60.99

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

$ 39.63 USD
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Sale - Save 35%
$ 60.99

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

$ 39.63 USD
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ECS - Corporate Logo
T#:585808
Part#: 11217849238WPCKT
In Stock
Sale - Save 29% $ 60.99

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

$ 43.08 USD
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Sale - Save 29%
$ 60.99

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

$ 43.08 USD
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Corteco - Corporate Logo
T#:54388348
Part#: 11347513024
Ships in 1 Business Day
New Item
$ 23.99

This product was last offered at the strikethrough price on
08-07-2026

$ 19.99 USD
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$ 19.99 USD
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On the street or at the track, your engine’s top end takes a beating. If you are rebuilding a cylinder head due to high mileage, overheating, or a mechanical overrev, you need valves that can handle the heat. This Corteco Exhaust Valve is the exact OEM replacement you need to guarantee factory-level sealing and long-term durability under demanding conditions.
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Corteco - Corporate Logo
T#:54388474
Part#: 11347513023
In Stock
New Item
$ 20.53

This product was last offered at the strikethrough price on
07-23-2026

$ 15.99 USD
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$ 15.99 USD
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A weak or worn intake valve causes lost compression, erratic idle, and drops in top-end power. When it's time to refresh your cylinder head for reliability on the street or the circuit, this Corteco intake valve is up to the task.
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CP Carrillo - Corporate Logo
T#:50521388
Part#: SCR13034-6
In Stock at Vendor
New Item
$ 2,189.99 USD
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CP Carrillo's PRO-H connecting rods offer exceptional strength and durability for use in high-performance racing engines, capable of withstanding extreme, abusive forces. These rods are made from a proprietary alloy called Carrilloy and utilize an H-beam design for lower weight without compromising strength. This connecting rod set also includes CARR bolts, a multi-phase bolt rated to 285 KSI, which are good for unlimited torque cycles if not overstretched or overheated.
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CP Carrillo - Corporate Logo
T#:49648346
Part#: SCR13492-6
In Stock at Vendor
New Item
$ 1,845.99 USD
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CP Carrillo's PRO-H connecting rods offer exceptional strength and durability for use in high-performance racing engines, capable of withstanding extreme, abusive forces. These rods are made from a proprietary alloy called Carrilloy and utilize an H-beam design for lower weight without compromising strength. This connecting rod set also includes WMC bolts, made from H11 tool steel and rated to 220 KSI, which are good for 15-18 torque cycles.
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ECS - Corporate Logo
T#:13299336
Part#: 11247620969WP2KT
Ships in 1 day
Sale - Save 10% $ 839.99

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

$ 755.89 USD
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Sale - Save 10%
$ 839.99

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

$ 755.89 USD
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ECS - Corporate Logo
T#:13299333
Part#: 11248053291WP2KT
Ships in 1 day
Sale - Save 3% $ 923.99

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

$ 896.16 USD
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Sale - Save 3%
$ 923.99

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

$ 896.16 USD
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ECS - Corporate Logo
T#:5484815
Part#: 11248053291WPCKT
Ships in 1 day
Sale - Save 3% $ 923.99

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

$ 896.16 USD
Free Shipping on orders $49 and up
Sale - Save 3%
$ 923.99

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

$ 896.16 USD
Free Shipping on orders $49 and up
What's better than using Original BMW connecting rod bearings in your next engine build? WPC-treated OEM 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 rod bearing service!
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