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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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Rein Piston Rings - Set - Single Piston - E36, Z3
Rein Piston Rings - Set - Single Piston - E36, Z3
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Rein - Corporate Logo
T#:591603
Part#: 11251405783
Back Ordered
$ 43.99 USD
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$ 43.99 USD
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Replace your worn out piston rings with OE replacements - 86.415mm
Rein Piston Rings - Set - Single Piston
Rein Piston Rings - Set - Single Piston
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
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T#:592808
Part#: 11251247917
Ships in 3 Business Days
$ 36.99 USD
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$ 36.99 USD
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Replace your worn out piston rings with OE replacements - 85.065mm
OEM Head Bolt Set - M50 M52 S50 S52
OEM Head Bolt Set - M50 M52 S50 S52
Victor Reinz - Corporate Logo
T#:1551
Part#: 11121721938
In Stock
Sale - Save 66% $ 62.21

This product was last offered at the strikethrough price on
05-14-2026

$ 20.94 USD
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Sale - Save 66%
$ 62.21

This product was last offered at the strikethrough price on
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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Rein Piston Ring - Priced Per Piston - E28, E30, E34, E36
Rein Piston Ring - Priced Per Piston - E28, E30, E34, E36
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:379806
Part#: 11251713192
Ships in 2 Business Days
$ 30.99 USD
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$ 30.99 USD
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For use on stock pistons, will need 6 sets to replace all piston rings in the engine
Rein Piston Ring Set
Rein Piston Ring Set
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:379819
Part#: 11251437077
Ships in 3 Business Days
$ 31.99 USD
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$ 31.99 USD
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Standard bore replacement piston rings
Rein Piston Ring Set - Priced Per Piston
Rein Piston Ring Set - Priced Per Piston
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:592811
Part#: 11251713178
Ships in 3 Business Days
$ 28.99 USD
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$ 28.99 USD
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Replace your worn rings - 84.000mm
Victor Reinz Cylinder Head Bolt Set - BMW N63 S63
Victor Reinz Cylinder Head Bolt Set - BMW N63 S63
Victor Reinz - Corporate Logo
T#:27672116
Part#: 11127582454
In Stock at Vendor
$ 55.99

This product was last offered at the strikethrough price on
05-07-2026

$ 54.99 USD
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$ 54.99 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.
M52TU/M54 Aluminum Block Head Bolt Set
M52TU/M54 Aluminum Block Head Bolt Set
Victor Reinz - Corporate Logo
T#:1560
Part#: 11121740065
In Stock at Vendor
$ 80.99

This product was last offered at the strikethrough price on
05-07-2026

$ 78.99 USD
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$ 78.99 USD
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Head Bolt set for M52TU and M54 engines with aluminum block.

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:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 525xi 530i 530xi
2004-2005 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
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Head Bolt Set - S54 - E46 M3, MZ3 S54, Z4 M
Head Bolt Set - S54 - E46 M3, MZ3 S54, Z4 M
Victor Reinz - Corporate Logo
T#:25748
Part#: 11127831862
In Stock at Vendor
$ 51.98 USD
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$ 51.98 USD
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Head Bolt Set for the S54 engine.

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:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
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MINI N14 N18 Valve Stem Seal Kit - Set Of 16
MINI N14 N18 Valve Stem Seal Kit - Set Of 16
Victor Reinz - Corporate Logo
T#:591738
Part#: 11340033950
Ships in 1 Business Day
$ 39.99 USD
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$ 39.99 USD
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MINI N14 N18 Valve Stem Seal Kit - Set Of 16 is an essential upgrade for maintaining the performance and longevity of your Mini's engine. This comprehensive kit, designed specifically for the MINI N14 and N18 engines, includes 16 high-quality valve stem seals that ensure optimal sealing and efficient engine performance.

  • Complete set of 16 valve stem seals for comprehensive coverage.
  • Designed specifically for MINI N14 and N18 engines for perfect compatibility.
  • High-quality materials for long-lasting durability and reliable performance.
  • Prevents oil leakage and reduces engine wear.
  • Enhances engine efficiency and extends engine life.

Ensure your Mini's engine operates at peak performance with the MINI N14 N18 Valve Stem Seal Kit - Set Of 16.

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MINI R56 Cylinder Head Bolts - Set Of 13
MINI R56 Cylinder Head Bolts - Set Of 13
Victor Reinz - Corporate Logo
T#:583709
Part#: 11127560274
Ships in 8 Business Days
$ 85.99 USD
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$ 85.99 USD
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Rein Piston Rings - Set - Single Piston - E30, E36
Rein Piston Rings - Set - Single Piston - E30, E36
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:591604
Part#: 11251727461
Ships in 3 Business Days
$ 31.99 USD
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$ 31.99 USD
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Replace your worn out piston rings with OE replacements - 84.000mm
Cynlider Head Gasket
Cynlider Head Gasket
Victor Reinz - Corporate Logo
T#:13957889
Part#: 11121734214
In Stock at Vendor
$ 126.09 USD
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$ 126.09 USD
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Victor Reinz Cylinder Head Bolts - N54
Victor Reinz Cylinder Head Bolts - N54
Victor Reinz - Corporate Logo
T#:373825
Part#: 11127574303
In Stock at Vendor
$ 152.99

This product was last offered at the strikethrough price on
04-15-2026

$ 147.99 USD
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$ 147.99 USD
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Head Bolt set for the N54 engines with aluminum block. 

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. 
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Head Bolt Set - E30 E36 M42 M44 318i 318is, Z3 1.9
Head Bolt Set - E30 E36 M42 M44 318i 318is, Z3 1.9
Victor Reinz - Corporate Logo
T#:19403
Part#: 11121721939
Ships in 3 Business Days
$ 54.58 USD
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$ 54.58 USD
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Replacing a head gasket? The M42 /M44 engine cylinder head bolts stretch when installed and as a result cannot be re-used. Replace you head bolts with this set of 10 head bolts.

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:
1990-1991 E30 BMW 318i 318is 318ic
1992-1998 E36 BMW 318i 318is 318ti 318ic
1997-1998 Z3 BMW Z3 1.9
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Rein Exhaust Valve - E34, E36, E39, E46, Z3
Rein Exhaust Valve - E34, E36, E39, E46, Z3
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:379738
Part#: 11341739823
Ships on Aug 6, 2026
$ 20.99 USD
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$ 20.99 USD
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Replacement exhaust valve
Rocker Arm Shaft Plug - Priced Each
Rocker Arm Shaft Plug - Priced Each
Victor Reinz - Corporate Logo
T#:593898
Part#: 11331264519
Ships in 1 day
$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.99 USD
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$ 2.99 USD
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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.
Aluminum Cylinder Head Bolt Set
Aluminum Cylinder Head Bolt Set
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:594302
Part#: 11120392547
Ships in 3 Business Days
$ 12.35

This product was last offered at the strikethrough price on
05-07-2026

$ 7.89 USD
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$ 7.89 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 Rein Camshaft / Crankshaft Sensor O-Ring - Multiple BMWs
OEM Rein Camshaft / Crankshaft Sensor O-Ring - Multiple BMWs ...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:12463
Part#: 12141748398
In Stock
$ 4.99

This product was last offered at the strikethrough price on
06-29-2026

$ 2.75 USD
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$ 2.75 USD
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This is the o-ring used for most BMW camshaft sensors and crankshaft sensors. Although most sensors that we sell come with this o-ring at no charge, they may be the source of oil or fluid leaks.
Rein Exhaust Valve - Sold Each - E28, E30, E34
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
In Stock
Sale - Save 9% $ 18.35

This product was last offered at the strikethrough price on
05-14-2026

$ 16.65 USD
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Sale - Save 9%
$ 18.35

This product was last offered at the strikethrough price on
05-14-2026

$ 16.65 USD
Free Shipping on orders $49 and up
Add to Wish List
Replace your worn valves
Victor Reinz O-Ring - Distributor Drive And Cam Cover - E24, E28, E30, E34
Victor Reinz O-Ring - Distributor Drive And Cam Cover - E24, E28, E30...
Victor Reinz - Corporate Logo
T#:597166
Part#: 12111252257
Ships in 1 Business Day
$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.99 USD
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$ 2.99 USD
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Seals the cover plate to the cylinder head
OEM Rein Rocker Arm Shaft Plug - E28 E30 E34
OEM Rein Rocker Arm Shaft Plug - E28 E30 E34
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:583592
Part#: 11331264519
In Stock at Vendor
$ 6.11 USD
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$ 6.11 USD
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This is an OEM Rein replacement rocker arm shaft plug, also referred to by BMW as a Blind Plug. This plug connects to the end of the rocker arm shafts. 4 required per vehicle. Replace your old plugs to keep everything properly sealed.
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Piston Ring - Priced Per Piston | BMW M54 3.0L Engine
Piston Ring - Priced Per Piston | BMW M54 3.0L Engine
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:591606
Part#: 11257506252
Ships in 3 Business Days
$ 48.99 USD
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$ 48.99 USD
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Piston Ring - Priced Per Piston | BMW M54 3.0L Engine is a vital component in maintaining proper compression and oil control in BMW M54 3.0L engines. Over time, piston rings experience wear from continuous movement within the cylinder bore, leading to decreased engine efficiency. Worn or damaged rings can result in excessive oil consumption, reduced performance, and visible black or blue smoke from the exhaust. Ideal for engine rebuilds, this high-quality replacement ensures optimal sealing and longevity.

  • Restores proper compression and oil control for improved engine performance
  • Reduces oil consumption and minimizes exhaust smoke
  • Direct-fit replacement for BMW M54 3.0L engine pistons
  • Manufactured from high-strength materials for durability and longevity
  • Essential for engine rebuilds and maintaining peak efficiency
  • Designed to withstand high temperatures and pressures for reliable operation
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Rein Alusil Piston Ring Repair Kit - E38, E39, E53
Rein Alusil Piston Ring Repair Kit - E38, E39, E53
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:591608
Part#: 11259071606
Ships in 3 Business Days
$ 37.99 USD
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$ 37.99 USD
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Set of rings for one piston
Victor Reinz O-Ring Seal
Victor Reinz O-Ring Seal
Victor Reinz - Corporate Logo
T#:369725
Part#: 12141748398
Ships in 4 Business Days
$ 2.99 USD
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$ 2.99 USD
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Always replace the o-ring when replacing sensor
Valve Seal Set (pack of 8) - E30 M3
Valve Seal Set (pack of 8) - E30 M3
Victor Reinz - Corporate Logo
T#:282
Part#: 11349059171
Ships on Aug 6, 2026
$ 15.99 USD
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$ 15.99 USD
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E30 M3 Valve Seal Set (package of 8). 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.
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