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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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Bremmen Parts - Corporate Logo
T#:5403287
Part#: 11317531813
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Located in the timing cover and is removable without dis-assembly. This item fits the following BMWs: 1993-1995 E34 BMW 530i 540i 1997-2003 E39 BMW 540i 1988-1994 E32 BMW 740i 740il 1995-2001 E38 BMW 740i 740il 1990-1999 E31 BMW 840i 840ci 2000-2003 E53 BMW X5 4.4i X5 4.6is 2000-2003 E52 BMW Z8 Alpina Roadster
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Bremmen Parts - Corporate Logo
T#:37655979
Part#: 11367541692
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$ 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.
ECS - Corporate Logo
T#:396674
Part#: 017301ECS01
Ships on Sep 18, 2026
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06-13-2026

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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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Victor Reinz - Corporate Logo
T#:1551
Part#: 11121721938
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05-14-2026

$ 20.94 USD
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Head Bolt Set for all M50 engines with a steel engine block.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.​

This item fits the following BMWs:
992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1991-1995 E34 BMW 525i
1997-1998 E39 BMW 528i
1998-2000 Z3 BMW M Roadster M Roadster
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Bremmen Parts - Corporate Logo
T#:5470982
Part#: 11311741236
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$ 39.98 USD
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Timing chain guide rails wear down over time. It is imperative that you replace the chain and rails every 100,000 miles to prevent failure and possible engine damage. Fits the following BMW engines: M62
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Bavarian Autosport - Corporate Logo
T#:17871154
Part#: 11311432177
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$ 22.39 USD
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Bremmen Parts - Corporate Logo
T#:36913364
Part#: 11377589883
Ships on Sep 28, 2026
Sale - Save 20% $ 614.99

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05-03-2026

$ 491.22 USD
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$ 614.99

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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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Bremmen Parts - Corporate Logo
T#:5471083
Part#: 11211247338
In Stock
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$ 52.22 USD
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Crankshaft located timing gear used in the operation of the timing chain. This item fits the following BMW Chassis: E30,E36 Fits BMW Engines including: M42,M44

Bremmen Parts - Corporate Logo
T#:640145
Part#: 12147518628
Ships on Sep 16, 2026
Sale - Save 16% $ 31.99

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$ 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

Bremmen Parts - Corporate Logo
T#:35357255
Part#: 11157848341
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$ 43.24 USD
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Bremmen Parts - Corporate Logo
T#:36066208
Part#: 11377548388
Ships in 4 Business Days
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$ 119.13 USD
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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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Bavarian Autosport - Corporate Logo
T#:17871158
Part#: 11367583208
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$ 159.99 USD
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Bremmen Parts - Corporate Logo
T#:37655980
Part#: 11367593719
Ships on Aug 11, 2026
Sale - Save 16% $ 37.99

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$ 32.07 USD
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This Solenoid Actuator is responsible for adjusting camshaft timing through precise phasing, ensuring optimal engine performance.

As a common culprit behind VANOS-related trouble codes, replacing this component can be expensive. Opt for a durable and cost-effective solution with a high-quality replacement from Bremmen Parts, designed to deliver reliable performance without breaking the bank.

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Bremmen Parts - Corporate Logo
T#:583703
Part#: 11217588996
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$ 21.24 USD
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The lower sprocket gear, situated at the engine's bottom, mounts to the crankshaft and is commonly replaced during timing chain modifications for Mini engines. This critical component ensures proper timing and synchronization within the engine system, contributing to efficient and smooth engine performance.

  • Essential for timing chain modifications
  • Mounts to the crankshaft at the engine's base
  • Ensures proper engine timing and synchronization
  • Contributes to efficient engine performance
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Bremmen Parts - Corporate Logo
T#:26904924
Part#: 11311485403
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$ 44.87 USD
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Bremmen Parts - Corporate Logo
T#:26904925
Part#: 11211485402
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05-03-2026

$ 26.10 USD
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Bremmen Parts - Corporate Logo
T#:5471008
Part#: 11311704945
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$ 41.61 USD
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Lower portion for bank 2 (5-8) This item fits the following BMWs: 1997-1998 E39 BMW 540i 1996-1998 E38 BMW 740i 740ill 1996-1999 E31 BMW 840i 840ci
Bremmen Parts - Corporate Logo
T#:38924612
Part#: 11217580483
Special Order: No Guaranteed ETA
Sale - Save 3% $ 1,608.99

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$ 1,560.27 USD
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Direct replacement N55 crankshaft for a fraction of the cost of Genuine

ECS - Corporate Logo
T#:585807
Part#: 11217849234WPC
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$ 39.63 USD
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ECS - Corporate Logo
T#:585808
Part#: 11217849238WPCKT
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$ 43.08 USD
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Bremmen Parts - Corporate Logo
T#:5202590
Part#: 13528648731
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$ 22.02 USD
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Bavarian Autosport - Corporate Logo
T#:17871157
Part#: 11367524954
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$ 4.79 USD
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Holds the camshaft gear to the camshaft, measures M10X1X94.
Bremmen Parts - Corporate Logo
T#:26904921
Part#: 11317510801
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$ 16.52 USD
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Bremmen Parts - Corporate Logo
T#:26904918
Part#: 11367547955
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$ 29.37 USD
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Bremmen Parts - Corporate Logo
T#:1195922
Part#: 11127575422
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$ 6.39 USD
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The sleeves that go in each cylinder of the cylinder cover
Bremmen Parts - Corporate Logo
T#:26404785
Part#: 11317603944
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$ 18.76 USD
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Bremmen Parts - Corporate Logo
T#:26904920
Part#: 11311485400
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$ 32.63 USD
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ECS - Corporate Logo
T#:13299336
Part#: 11247620969WP2KT
Ships in 1 day
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06-14-2026

$ 755.89 USD
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ECS - Corporate Logo
T#:13299333
Part#: 11248053291WP2KT
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$ 896.16 USD
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ECS - Corporate Logo
T#:5484815
Part#: 11248053291WPCKT
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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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Bremmen Parts - Corporate Logo
T#:26271802
Part#: 11417576915
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$ 14.68 USD
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Bremmen Parts - Corporate Logo
T#:9190485
Part#: 11111485171
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$ 4.74 USD
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Schrick - Corporate Logo
T#:25739348
Part#: N54CAMSKT
Ships on Nov 9, 2026
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07-07-2026

$ 3,074.39 USD
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Take your N54-powered BMW to the next level with this upgraded camshaft kit from Schrick Cams! Increasing the air allowed in and out of the motor by increasing both lift and duration over stock is one of the most effective ways to add power to your car next to adding more boost. We recommend finding a competent tuner to get the most out of your individual setup. Duration Duration Intake: 268 Duration Intake @ 1mm: 219 Duration Exhaust: 264 Duration Exhaust @ 1mm: 214 Intake Peak Timing: 125,6 Exhaust Peak Timing: -128 Lift Cam Lobe Lift Intake: 7,2 Cam Lobe Lift Exhaust: 6,54 Valve Lift Without Valve Clearance Intake: 12 Valve Lift Without Valve Clearance Exhaust: 11 Valve Clearance Intake: hydr. Valve Clearance Exhaust:
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Bremmen Parts - Corporate Logo
T#:2332903
Part#: 11141742042
Special Order: No Guaranteed ETA
Sale - Save 6% $ 70.99

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$ 66.85 USD
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If your vehicle has started leaking coolant around the intake area and it is not the pipes it is probably the valley pan. Gasket included.