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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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Glyco Connecting Rod Bearing Set

T#:375825

Part#: 11241284849

Ships in 1 Business Day

$ 92.02

This product was last offered at the strikethrough price on
07-15-2026

$ 84.38 USD

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$ 84.38 USD

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Standard bore - 45mm

Oil Pump Chain - E36 E46 E34 E39 Z3 Z4

T#:14529

Part#: 11417576915

In Stock

$ 45.89 USD

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$ 45.89 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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Rod Bearing - E30 M3, E28 M5, E24 M6, E34 M5 (sold individually) ...

T#:183

Part#: 11241310515

In Stock

$ 30.59

This product was last offered at the strikethrough price on
05-03-2026

$ 27.99 USD

Limited Qty Sale

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$ 30.59

This product was last offered at the strikethrough price on
05-03-2026

$ 27.99 USD

Limited Qty Sale

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E30 M3, E28 M5, E24 M6, E34 M5 Rod Bearing. Sold individually. Standard sizing.

This item fits the following BMWs
1988-1991 BMW E30 M3 - 8 required.
1988 BMW E28 M5 - 12 required.
1989-1993 BMW E34 M5 3.6 liter - 12 required.
1987-1989 BMW E24 M6 - 12 required.

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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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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.

Glyco "Yellow" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E...

T#:375823

Part#: 11211706847

In Stock

$ 136.06

This product was last offered at the strikethrough price on
07-15-2026

$ 125.04 USD

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$ 125.04 USD

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Standard bore

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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Main Bearing Set - Standard Size - E30 M3 2.3 liter

T#:3166

Part#: 11210666110

Ships in 3 Business Days

$ 99.99 USD

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$ 99.99 USD

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This E30 M3 Main bearing set is in standard size for the 2.3 liter S14 engine. This main bearing kit includes the thrust bearings.

This item fits the following BMWs:
1988-1991 E30 BMW M3

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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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Glyco Main Bearing Set (Standard) - E21, E28, E30

Features All Single-Tang Main Bearings for Earlier M20 Engines

T#:1196183

Part#: 11211722342

In Stock

$ 259.99

This product was last offered at the strikethrough price on
05-03-2026

$ 231.99 USD

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$ 231.99 USD

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Glyco "Yellow" Crankshaft Bearing Shell - Set - E30, E36, E39, E46, E...

T#:375824

Part#: 11211706850

In Stock at Vendor

$ 126.61

This product was last offered at the strikethrough price on
07-15-2026

$ 118.92 USD

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$ 118.92 USD

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59.75MM(+0.25) bore

Rod Bearing Set (+0.25)

T#:23748157

Part#: 112412848516CYL-

Ships in 1 Business Day

$ 331.13

This product was last offered at the strikethrough price on
07-15-2026

$ 305.57 USD

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Qty

$ 305.57 USD

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Glyco "Green" Crankshaft Bearing Shell - Set - E39, E46, E53, E83, Z3...

T#:374671

Part#: 11211706848

Ships in 1-2 days

$ 194.32 USD

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$ 194.32 USD

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Standard bore

Timing Chain - Upper

T#:362341

Part#: 11311432177

Ships in 3 Business Days

$ 45.92

This product was last offered at the strikethrough price on
08-20-2026

$ 39.68 USD

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$ 39.68 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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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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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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Rod Bearing Set - Standard (48.00 Mm)

T#:55821723

Part#: 11241715701

In Stock

$ 153.99 USD

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Qty

$ 153.99 USD

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Glyco Connecting Rod Bushing

T#:374292

Part#: 11241278209

Ships in 1 Business Day

$ 6.11 USD

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Qty

$ 6.11 USD

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Press fit into small journal of connecting rod

Glyco Connecting Rod Bushing - E12, E21, E23, E24, E28, E3, E30, E32,...

T#:187165

Part#: 11240618100

In Stock at Vendor

$ 12.99 USD

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Qty

$ 12.99 USD

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OEM BMW Connecting Rod Bush

Main Bearing Set (Standard)

T#:55857747

Part#: 11211725917

Ships in 2 Business Days

$ 90.99

This product was last offered at the strikethrough price on
07-15-2026

$ 85.99 USD

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Qty

$ 85.99 USD

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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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Qty

$ 38.99 USD

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Glyco "White" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E3...

T#:374670

Part#: 11211706849

Back Ordered

$ 177.99

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

$ 172.99 USD

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Qty

$ 172.99 USD

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Standard bore

Glyco "White" Crankshaft Bearing Shell - Set - E28, E30, E34, E36, E3...

T#:374672

Part#: 11211706852

Back Ordered

$ 111.99

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

$ 108.99 USD

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Qty

$ 108.99 USD

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59.75MM(+0.25) bore

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