BMW Internal Engine Parts for BMW Z4 M Roadster S54 (2003-2008)

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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 "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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WPC Treated Crank Bearing Set

T#:585720

Part#: 11211706847WPCKT

In Stock

Sale - Save 3% $ 250.99

This product was last offered at the strikethrough price on
06-14-2026

$ 243.46 USD

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Sale - Save 3%

$ 250.99

This product was last offered at the strikethrough price on
06-14-2026

$ 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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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

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!

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.