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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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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#:395066
Part#: 11241284849WPC
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$ 141.74 USD
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These WPC-treated bearings are the best we have seen! WPC is a shot-peening treatment at a microscopic level. It's perfect for sensitive surfaces like bearings. The WPC treatment removes imperfections and high spots, while creating a surface that retains oil better than the original surface. This greatly reduces friction. The bearings in this kit are original equipment KS bearings that are sent to WPC for treatment. The treated bearings are stronger with less metal fatigue and less friction than buying off-the-shelf bearings from the dealer.

This item fits the following BMWs: 
1984-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix 
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1982-1988 E28 BMW 528e
1989-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i 
2004-2006 E83 BMW X3 2.5i X3 3.0i 
2000-2006 E53 BMW X5 3.0i 
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe 
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i 

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ECS - Corporate Logo
T#:396674
Part#: 017301ECS01
Ships on Sep 21, 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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Bremmen Parts - Corporate Logo
T#:5470982
Part#: 11311741236
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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
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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#:640145
Part#: 12147518628
Ships on Sep 16, 2026
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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#: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#:35357255
Part#: 11157848341
In Stock
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$ 43.24 USD
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Bremmen Parts - Corporate Logo
T#:36066208
Part#: 11377548388
Ships in 5 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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ECS - Corporate Logo
T#:585720
Part#: 11211706847WPCKT
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$ 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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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
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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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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#:5202585
Part#: 11367545862
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$ 108.52 USD
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ECS - Corporate Logo
T#:388756
Part#: 11247841703WPCKT
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07-12-2026

$ 815.00 USD
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Enhance Your BMW Engine with WPC-Treated OEM Connecting Rod Bearings

Upgrade your BMW engine performance by choosing WPC-treated OEM connecting rod bearings, surpassing the advantages of Original BMW bearings. WPC surface treatment is renowned for its ability to reduce friction and enhance component strength. Through ultra-fine particle blasting at high speeds, this treatment ensures smoother and stronger surfaces by utilizing thermal discharge. Combatting the critical enemies of heat and friction, WPC-treated bearings offer superior performance for your engine build or rod bearing service.

Key Benefits:

  • WPC-treated OEM connecting rod bearings for enhanced engine performance
  • Reduction in friction and addition of strength through surface treatment
  • Ultra-fine particle blasting results in smoother and stronger surfaces
  • Mitigates heat and friction, critical for high-performance engines
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Bremmen Parts - Corporate Logo
T#:8169510
Part#: 11367536085
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MINI R56 N18 Adjustment Unit - Outlet Cam is a crucial component for optimizing engine performance. This timing chain camshaft gear, which is the thicker gear positioned toward the front of the engine on the outlet side, plays a key role in the timing and operation of the engine. It is typically replaced when servicing or replacing the timing chain to ensure proper engine function and longevity. As an Original Equipment Supplier (OES) part, it guarantees the same quality and reliability as the factory-installed component.

  • Thicker Gear Design: Ensures robust performance and durability.
  • Optimal Positioning: Located toward the front of the engine on the outlet side for precise timing.
  • Replacement Component: Commonly changed during timing chain replacement to maintain engine performance.
  • OES Quality: Provides factory-level quality and reliability.
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Bremmen Parts - Corporate Logo
T#:26904924
Part#: 11311485403
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$ 44.87 USD
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ECS - Corporate Logo
T#:585258
Part#: 11247628034WPCKT
Ships on Aug 18, 2026
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$ 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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ECS - Corporate Logo
T#:394295
Part#: 012016ECS
In Stock at Vendor
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Starting at $ 269.21 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 though 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.

While you're replacing the seals in your VANOS unit it a good time to install anti-rattle spacers to tighten up the gaps in your stock assembly and get rid of that noisy VANOS clatter.

This item fits the following BMWs: 
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 
1997-1998 E39 BMW 528i 
1997-1998 Z3 BMW Z3 2.8 
1998-2000 Z3 BMW M Roadster M Coupe

 

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Bremmen Parts - Corporate Logo
T#:26904925
Part#: 11211485402
In Stock
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$ 26.10 USD
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Bremmen Parts - Corporate Logo
T#:5471008
Part#: 11311704945
In Stock
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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


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#:26904920
Part#: 11311485400
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$ 32.63 USD
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Bremmen Parts - Corporate Logo
T#:5202590
Part#: 13528648731
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$ 22.02 USD
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ECS - Corporate Logo
T#:585808
Part#: 11217849238WPCKT
In Stock
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$ 43.08 USD
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Bremmen Parts - Corporate Logo
T#:26404785
Part#: 11317603944
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Bremmen Parts - Corporate Logo
T#:26904918
Part#: 11367547955
In Stock
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Bremmen Parts - Corporate Logo
T#:26904921
Part#: 11317510801
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Bremmen Parts - Corporate Logo
T#:1195922
Part#: 11127575422
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The sleeves that go in each cylinder of the cylinder cover

ECS - Corporate Logo
T#:585807
Part#: 11217849234WPC
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$ 39.63 USD
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ECS - Corporate Logo
T#:5470995
Part#: 11247617339WPC
In Stock
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$ 42.63 USD
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ECS - Corporate Logo
T#:17073561
Part#: 11247620969WP3KT
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ECS - Corporate Logo
T#:13299333
Part#: 11248053291WP2KT
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T#:17073562
Part#: 11247620969WP4KT
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ECS - Corporate Logo
T#:13299336
Part#: 11247620969WP2KT
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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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ECS - Corporate Logo
T#:13299340
Part#: 11217849234KT2
Ships on Aug 26, 2026
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$ 844.42 USD
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Bremmen Parts - Corporate Logo
T#:26271802
Part#: 11417576915
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Bremmen Parts - Corporate Logo
T#:9190485
Part#: 11111485171
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Bremmen Parts - Corporate Logo
T#:2332903
Part#: 11141742042
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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.