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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
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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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$ 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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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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Cylinder Head Bolt Kit
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:582581
Part#: 11121721938
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This product was last offered at the strikethrough price on
07-23-2026

$ 21.33 USD
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07-23-2026

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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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Elring Cylinder Head Bolt Set - E39, E46, E53
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:377047
Part#: 11121740065
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08-12-2026

$ 33.24 USD
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$ 33.24 USD
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Includes all head bolts in one cylinder head

Valve Stem Seal Kit - Set Of 16 - N12 N14 N16 N18 1.6L Engine ...
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Elring - Corporate Logo
T#:591737
Part#: 11340033950
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Ensure optimal performance of your Mini's N12, N14, N16, or N18 1.6L engine with this Valve Stem Seal Kit. It includes a set of 16 seals recommended for replacement whenever installing new valves. These seals play a crucial role in sealing the valve under the spring, preventing oil leakage and maintaining proper engine function.

  • Set of 16 valve stem seals for N12, N14, N16, or N18 1.6L engines
  • Recommended for replacement when installing new valves
  • Seals the valve under the spring to prevent oil leakage
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OEM Elring Cylinder Head Bolt Set - N20/26 2.0L
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Elring - Corporate Logo
T#:2602240
Part#: 11122212157
In Stock at Vendor
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05-07-2026

$ 71.60 USD
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If you remove your cylinder head replacement head bolts are a must. These bolts are designed to be torqued down and not reused.

OEM Elring Cylinder Head Bolt Set - F8X M2 Comp M3 M4 S55 3.0L ...
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Elring - Corporate Logo
T#:2706168
Part#: 11127853937
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$ 79.79 USD
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If you remove your cylinder head replacement head bolts are a must. These bolts are designed to be torqued down and not reused.

Elring Cylinder Head Bolt Set - E53 E60 E63 E64 E65 E66 E70
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Elring - Corporate Logo
T#:596415
Part#: 11127583113
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$ 63.85 USD
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MINI R55 to R61 Shaft Seal
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:583720
Part#: 11117568264
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Enhance your Mini's engine functionality and prevent leaks with this crucial shaft seal. Mounting on both the upper and lower halves of the engine block and situated opposite the transmission side, this seal focuses on the timing chain area, proving its significance for engine repairs and effectively addressing seal leaks.

Key Benefits:

  • Enhanced engine block sealing for optimal performance
  • Prevents leaks and ensures sustained engine integrity
  • Suitable for both upper and lower halves of the engine block
  • Positioned away from the transmission side
  • Perfect solution for seal-related issues during engine repairs
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Rein Exhaust Valve - Sold Each - E28, E30, E34
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:584424
Part#: 11341708896
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$ 16.65 USD
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Replace your worn valves


ECS - Corporate Logo
T#:585808
Part#: 11217849238WPCKT
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05-03-2026

$ 43.08 USD
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Rocker Shaft Plug - E30 325e 325i, E34 525i - M20 engine
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Elring - Corporate Logo
T#:14515
Part#: 11331264519
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$ 1.83 USD
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Rocker shaft blind plug for M20 engine. 4 per engine required.

If you drive a European vehicle, chances are high your vehicle came equipped with one or more Victor Reinz gaskets. Choose OE quality VR gaskets and seals and do the job right the first time.

This item fits the following BMWs:
1982-1988 E28 BMW 528e
1984-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1989-1990 E34 BMW 525i
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Lower Timing Case Gasket Set - E39 E38 E32 E34 E53
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:6643
Part#: 11141436978
In Stock
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$ 16.48 USD
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This kit includes the 3 gaskets for the front lower engine timing chain case for BMW's with the M60 or M62 V-8 engine. Replacing these components is essential when replacing any timing components on your M60/M62 engine.
With more than 100 years in the industry, Elring is one of the oldest names in the European autoparts segment. Delivering OE-quality you can rest assured the job will be done right the first time.

This item fits the following BMWs:
1989-1995 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 E52 BMW Z8 Alpina Roadster
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ECS - Corporate Logo
T#:585807
Part#: 11217849234WPC
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This product was last offered at the strikethrough price on
05-03-2026

$ 39.63 USD
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ECS - Corporate Logo
T#:5470995
Part#: 11247617339WPC
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$ 42.63 USD
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Elring Cylinder Head Bolt Set - F01 F02 F10 F12 F13 E70 E71
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:596414
Part#: 11127582454
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$ 136.71 USD
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One time use torque-to-yield cylinder head bolts. Always replace as a set whenever cylinder head is removed and reinstalled.

Elring CSL Exhaust Valve - E46
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Elring - Corporate Logo
T#:583284
Part#: 18301711969
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$ 16.16 USD
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$ 16.16 USD
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Exhaust valve with better airflow
ECS - Corporate Logo
T#:17073561
Part#: 11247620969WP3KT
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ECS - Corporate Logo
T#:13299333
Part#: 11248053291WP2KT
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ECS - Corporate Logo
T#:17073562
Part#: 11247620969WP4KT
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$ 377.95 USD
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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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Shaft Seal - Front Seal
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:594753
Part#: 11111485171
Ships on Sep 2, 2026
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08-07-2026

$ 10.58 USD
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ECS - Corporate Logo
T#:13299340
Part#: 11217849234KT2
Ships on Sep 18, 2026
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$ 844.42 USD
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$ 844.42 USD
Cylinder Head Bolt - Set Of 14
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:15247124
Part#: 794.480
Special Order: No Guaranteed ETA
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$ 84.54 USD
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Elring - Corporate Logo
T#:45517828
Part#: 233.370
Special Order: No Guaranteed ETA
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$ 56.04 USD
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BMW cylinder head bolts are almost always stretch bolts and should never be reused after removal. Reusing old bolts can lead to a weak seal between the cylinder head and engine block, allowing the head to lift and cause potentially catastrophic damage. Replace your old cylinder head bolts with these brand new Elring bolts to ensure your head is properly secured to prevent damage and keep your engine healthy. Replaces BMW # 11128513128
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Elring - Corporate Logo
T#:45483601
Part#: 802.700
Special Order: No Guaranteed ETA
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$ 40.84 USD
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BMW Cylinder Head Bolt - Priced Each - M10 1.8L - Partnumber 11120621144
Elring - Corporate Logo
T#:44733255
Part#: 794.470
Special Order: No Guaranteed ETA
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$ 81.10 USD
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Cylinder head bolts feature a torque-to-yield design, meaning that they can only be used once. If you have to pull your cylinder head for any reason, be sure to pick up a set of cylinder head bolts to ensure your head is properly attached to the engine block. This kit includes all 10 replacement cylinder head bolts. Replaces BMW p/n 11128644675.
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Elring - Corporate Logo
T#:44767341
Part#: 233.380
Special Order: No Guaranteed ETA
Sale - Save 3% $ 59.99

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$ 57.95 USD
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Cylinder head bolts need to be replaced after removal. Once a bolt is torqued down, you're unable to reuse it. This set of Elring cylinder head bolts is a great option to reattach your head to the block, without paying the markup for Genuine BMW parts. Replaces BMW p/n 11128513130, 11127812925, & 11128511621
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Cylinder Head Bolt
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:580043
Part#: 802.76
Special Order: No Guaranteed ETA
Sale - Save 10% $ 14.99

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$ 13.49 USD
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Prevent oil leaks, coolant mixing, and catastrophic compression loss by refreshing your engine with fresh, factory-spec head hardware.

Cylinder Head Bolt - Set of 10
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:27171911
Part#: 11128644674
Back Ordered
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$ 83.26 USD
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Features robust steel construction engineered to handle the high heat and extreme cylinder pressures of turbocharged applications.