BMW Internal Engine Parts

OEM Head Bolt Set - M50 M52 S50 S52

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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Camshaft Timing Chain - E39 E38 E53 X5 with M62 V8 engine

T#:14505

Part#: 11311747437

In Stock

$ 62.99

This product was last offered at the strikethrough price on
03-02-2026

$ 34.43 USD

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$ 34.43 USD

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This is the timing chain that connects the 2 camshaft sprockets. The M62 V8 engine is known for issues with the timing system. Replace the timing chain on your BMW with this OEM part. We also recommend replacing guides and tensioners while replacing the chain. Sold individually. 2 per car.

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair but ultimately improve the way your engine runs.

This item fits the following BMWs:
1997-2003 E39 BMW 540i
1996-2001 E38 BMW 740i 740il
1996-1999 E31 BMW 840i 840ci
2000-2003 E53 BMW X5 4.4i X5 4.6is

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Oil Pump Chain - E36 E46 E34 E39 Z3 Z4

T#:14529

Part#: 11417576915

Ships in 3 Business Days

$ 45.89

This product was last offered at the strikethrough price on
08-13-2026

$ 32.99 USD

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$ 32.99 USD

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This is an OEM oil pump chain for BMW's with the M50/M52/M54/S50/S52 6 cylinder engine. We recommend replacing the oil pump chain any time you remove the oil pump from the car.

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair but ultimately improve the way your engine runs.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1991-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i
2004-2005 E83 BMW X3 2.5i X3 3.0i
1996-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1998-2000 Z3 BMW M Roadster M Coupe
2003-2006 E85 BMW Z4 2.5i Z4 3.0i

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OEM IWIS Lower Timing Chain - E36, E46, E39, Z3 E60

T#:362220

Part#: 11311432176

In Stock

$ 83.99

This product was last offered at the strikethrough price on
06-08-2026

$ 79.99 USD

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$ 79.99 USD

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IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair, but ultimately improve the way your engine runs.

Oil Pump Chain - E46 M3, Z3M Z4M with S54 engine

T#:34869

Part#: 11411401399

In Stock

$ 30.99

This product was last offered at the strikethrough price on
06-19-2026

$ 29.99 USD

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$ 29.99 USD

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This is an OEM oil pump chain for BMW's with the S54 6 cylinder engine. We recommend replacing the oil pump chain any time you remove the oil pump from the car.

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair, but ultimately improve the way your engine runs.

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe

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Crankshaft Position Sensor

T#:13793006

Part#: 13627809334

Ships in 3 Business Days

$ 81.99

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

$ 79.99 USD

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$ 79.99 USD

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Crankshaft to Camshafts Lower Timing Chain - E39 E38 E53 E31 ...

T#:14503

Part#: 11311741746

In Stock

$ 97.72

This product was last offered at the strikethrough price on
07-16-2026

$ 88.99 USD

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$ 88.99 USD

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This is the timing chain that connects the crankshaft to the camshafts. The M62 V8 engine is known for issues with the timing system. Replace the timing chain on your BMW with this OEM part. We also recommend replacing guides and tensioners while replacing the chain.

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair but ultimately improve the way your engine runs.

This item fits the following BMWs:
1997-2003 E39 BMW 540i
1996-2001 E38 BMW 740i 740il
1996-1999 E31 BMW 840i 840ci
2000-2003 E53 BMW X5 4.4i X5 4.6is

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Head Bolt Set - S54 - E46 M3, MZ3 S54, Z4 M

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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M52TU/M54 Aluminum Block Head Bolt Set

T#:1560

Part#: 11121740065

Ships in 1 Business Day

$ 80.99

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

$ 78.74 USD

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$ 78.74 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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MINI R56 Cylinder Head Bolts - Set Of 13

T#:583709

Part#: 11127560274

Ships on Sep 1, 2026

$ 85.99

This product was last offered at the strikethrough price on
08-13-2026

$ 73.99 USD

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$ 73.99 USD

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Cynlider Head Gasket

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 Bolt Set - BMW N63 S63

T#:27672116

Part#: 11127582454

Ships in 2 Business Days

$ 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.

Hella Crankshaft Bearing Set - Standard Size - 55.0mm

T#:27638781

Part#: 11210666100

In Stock at Vendor

$ 143.99

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

$ 141.99 USD

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$ 141.99 USD

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Often called main bearings, crankshaft bearing shells sit between the rotating assembly and the engine block. They allow the crankshaft to rotate freely, but are prone to wear from deterioration and lack of lubrication.

This complete set consists of nine bearings, enough to fill each journal.

If you're overhauling your M10, choose Hella crankshaft-bearing shells for a lasting solution.

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MINI N14 N18 Valve Stem Seal Kit - Set Of 16

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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Victor Reinz Cylinder Head Bolts - N54

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

T#:19403

Part#: 11121721939

Ships in 1-2 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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Timing Chain - Upper

T#:362341

Part#: 11311432177

In Stock

$ 45.92 USD

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$ 45.92 USD

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This is the upper timing chain that connects the 2 camshaft sprockets on cars with the M50, M52, M54, S50 or S52 engines. If you need the lower timing chain that connects the crankshaft to the upper sprocket you can find it Here .

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair but ultimately improve the way your engine runs.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1991-1995 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 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1997-2000 Z3 BMW Z3 M Roadster M Coupe
2003-2005 E85 BMW Z4 2.5i Z4 3.0i

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Victor Reinz O-Ring - Distributor Drive And Cam Cover - E24, E28, E30...

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

Osvat Intake Valve - E28, E30, E34

T#:1196099

Part#: 11341706631

In Stock

$ 12.99

This product was last offered at the strikethrough price on
06-22-2026

$ 10.99 USD

Limited Qty Sale

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Qty

$ 12.99

This product was last offered at the strikethrough price on
06-22-2026

$ 10.99 USD

Limited Qty Sale

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Standard replacement intake valve

Rocker Arm Shaft Plug - Priced Each

T#:593898

Part#: 11331264519

Ships in 1-2 days

$ 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.

Timing Chain - Single Row

T#:578660

Part#: 11311716987

In Stock at Vendor

$ 62.99

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

$ 60.99 USD

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$ 60.99 USD

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The timing chain in any vehicle can begin to stretch and rattle over time. This is a common issue, and though BMW says it is a lifetime part, most enthusiasts decide to change them. If you need only the timing chain instead of a kit, ECS Tuning has your replacement. This is a direct fit replacement for any broken or stretched chain. A great replacement to a damaged chain or one that may have been misplaced out of a timing belt kit.

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Intake Valve - Priced Each

T#:596779

Part#: 11341267721

Ships in 3 Business Days

$ 13.99

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

$ 8.99 USD

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$ 8.99 USD

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Replacement intake valve 40.0/6.97MM

Osvat Exhaust Valve - Sold Each - E28, E30, E34

T#:1196100

Part#: 11341708896

In Stock at Vendor

$ 35.98 USD

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$ 35.98 USD

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Replace your worn valves

Timing Chain - E30 E32 E34

T#:4468

Part#: 11311716986

Ships in 2 Business Days

$ 47.17 USD

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$ 47.17 USD

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This single row timing chain is used on many BMW's from 1979 on. If you are rebuilding your engine we recommend replacing the timing chain.

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair, but ultimately improve the way your engine runs.

This item fits the following BMWs:
1979-1983 E21 BMW 320i 323i
1984-1985 E30 BMW 318i
1979-1981 E12 BMW 528i 530i
1985-1988 E28 BMW 533i 535i 535is
1989-1995 E34 BMW 535i
1979-1989 E24 BMW 633csi 635csi
1979-1987 E23 BMW 733i 735i
1988-1993 E32 BMW 735i 735il

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Timing Chain - Oil Pump

T#:591278

Part#: 13528648731

Ships in 1-2 days

$ 39.99

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

$ 38.99 USD

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$ 38.99 USD

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Victor Reinz O-Ring Seal

T#:369725

Part#: 12141748398

Ships in 4 Business Days

$ 2.99 USD

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Qty

$ 2.99 USD

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Always replace the o-ring when replacing sensor

Valve Seal Set (pack of 8) - E30 M3

T#:282

Part#: 11349059171

Ships on Sep 1, 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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Sub-Categories

OEM Head Bolt Set - M50 M52 S50 S52

Camshaft Timing Chain - E39 E38 E53 X5 with M62 V8 engine

Oil Pump Chain - E36 E46 E34 E39 Z3 Z4

OEM IWIS Lower Timing Chain - E36, E46, E39, Z3 E60

Oil Pump Chain - E46 M3, Z3M Z4M with S54 engine

Crankshaft Position Sensor

Crankshaft to Camshafts Lower Timing Chain - E39 E38 E53 E31 ...

Head Bolt Set - S54 - E46 M3, MZ3 S54, Z4 M

M52TU/M54 Aluminum Block Head Bolt Set

MINI R56 Cylinder Head Bolts - Set Of 13

Cynlider Head Gasket

Victor Reinz Cylinder Head Bolt Set - BMW N63 S63

Hella Crankshaft Bearing Set - Standard Size - 55.0mm

MINI N14 N18 Valve Stem Seal Kit - Set Of 16

Victor Reinz Cylinder Head Bolts - N54

Head Bolt Set - E30 E36 M42 M44 318i 318is, Z3 1.9

Timing Chain - Upper

Victor Reinz O-Ring - Distributor Drive And Cam Cover - E24, E28, E30...

Osvat Intake Valve - E28, E30, E34

Rocker Arm Shaft Plug - Priced Each

Timing Chain - Single Row

Intake Valve - Priced Each

Osvat Exhaust Valve - Sold Each - E28, E30, E34

Timing Chain - E30 E32 E34

Timing Chain - Oil Pump

Victor Reinz O-Ring Seal

Valve Seal Set (pack of 8) - E30 M3

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