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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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Timing Chain - Upper

T#:17871154

Part#: 11311432177

In Stock

Sale - Save 20% $ 27.99

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

$ 22.39 USD

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Sale - Save 20%

$ 27.99

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

$ 22.39 USD

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Cylinder Head - Complete - E30 325i, E34 525i, M20 engine

T#:222771

Part#: 11121707032C

In Stock

$ 1,322.99 USD

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$ 1,322.99 USD

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This replacement cylinder head for BMW M20B25 6 cylinder engine comes completely assembled with new valves, valve springs, valve guides and seals. Being assembled this cylinder head makes for a much quicker and easier job of installation. The camshaft is not included but is available separately.

This cylinder head is manufactured in Spain by Amadeo Marti Carbonell, a company that meets or exceeds the ISO 4000, ISO 9000 and TS-16949 standards so you can be assured of a quality part.BMW has discontinued this part so this is the only current source for M20 cylinder heads.

This item fits the following BMWs:
1988 E30 BMW 325e 325es
1987-1991 E30 BMW 325i 325ic 325is 325ix
1988 E28 BMW 528e
1989-1990 E34 BMW 525i

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Cylinder Head - Complete - M52, S50, S52

T#:19419

Part#: 11121703637

Ships on Sep 15, 2026

$ 2,315.99 USD

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$ 2,315.99 USD

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This replacement cylinder head for BMW S52 S50 M52 6 cylinder engine comes completely assembled with new valves, valve springs, valve guides, valve seals and studs. Being assembled this cylinder head makes for a much quicker and easier job of installation. The camshaft is not included but is available separately.

This cylinder head is manufactured in Spain by Amadeo Marti Carbonell, a company that meets or exceeds the ISO 4000, ISO 9000 and TS-16949 standards so you can be assured of a quality part.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 328i 328is 328ic M3
1995 E34 BMW 525i
1997-1998 E39 BMW 528i
1996-1998 E36/7 BMW Z3 2.8
1998-2000 E36/7 BMW M Roadster M Coupe

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Timing Component

T#:17871158

Part#: 11367583208

In Stock

Sale - Save 20% $ 199.99

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

$ 159.99 USD

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Qty

Sale - Save 20%

$ 199.99

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

$ 159.99 USD

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AMC Cylinder Head - Bare - E34, E36, E39, Z3

T#:383388

Part#: 11121703637

Special Order: No Guaranteed ETA

$ 1,631.99 USD

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$ 1,631.99 USD

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Bare head with guides and seats only

AMC Cylinder Head - complete - E39, E46, E53, E60, E61, E83, Z3, Z4 ...

T#:383390

Part#: 11127514540-3

Ships on Sep 9, 2026

$ 1,562.99 USD

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$ 1,562.99 USD

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Complete cylinder head with guides, seats, valves, springs, and all neccesary hardware for installation

AMC Cylinder Head - Bare - E39, E46, E53, E60, E61, E83, Z3, Z4 ...

T#:19277

Part#: 11127514540

Ships on Sep 9, 2026

$ 1,869.02 USD

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$ 1,869.02 USD

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CYLINDER HEAD WITH BEARING L 11127514540 Manufactured by AMC New

Cylinder Head - Bare - E30 325i, E34 525i, M20 engine

T#:22168

Part#: 11121707032

Ships on Sep 9, 2026

$ 999.00 USD

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$ 999.00 USD

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This replacement cylinder head for BMW M20B25 6 cylinder engine includes new valve guides and seals. The stock valve guides are not replaceable so if you need new guides you likely need a new cylinder head.This cylinder head is manufactured in Spain by Amadeo Marti Carbonell, a company that meets or exceeds the ISO 4000, ISO 9000 and TS-16949 standards so you can be assured of a quality part.BMW has discontinued this part so this is the only current source for M20 cylinder heads.

This item fits the following BMWs:
1988 E30 BMW 325e 325es
1987-1991 E30 BMW 325i 325ic 325is 325ix
1988 E28 BMW 528e
1989-1990 E34 BMW 525i

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AMC Cylinder Head - Complete - E39, E46, E53, E60, E61, E83, Z3, Z4 ...

T#:363902

Part#: 11127514540-2

Special Order: No Guaranteed ETA

$ 1,864.99 USD

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$ 1,864.99 USD

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Complete cylinder head with guides, seats, valves, & springs

Bav Auto Crankshaft Position Sensor - Multiple BMWs

T#:639826

Part#: 13627525015

Special Order: No Guaranteed ETA

$ 67.99 USD

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$ 67.99 USD

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This crankshaft position sensor provides the ECU with the engine speed signal. It is mounted in either the engine block or the bell housing of the transmission on most cars. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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BMW N52 N54 Collar Screw

T#:17871157

Part#: 11367524954

In Stock

Sale - Save 20% $ 5.99

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

$ 4.79 USD

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Qty

Sale - Save 20%

$ 5.99

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

$ 4.79 USD

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Holds the camshaft gear to the camshaft, measures M10X1X94.

Camshaft - Inlet Side 647107 - Priced Each

T#:54388484

Part#: 11317587756

Ships on Sep 8, 2026

$ 216.99 USD

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$ 216.99 USD

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Ready to extract more power and optimize your valve timing? This replacement intake camshaft is engineered for dual-overhead-cam (DOHC) cylinder heads, delivering the precise lift and duration needed to keep your engine breathing efficiently at higher RPMs.

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Cylinder Head 910570 - R55 / R56 / R57

T#:22723740

Part#: 11127577371

Ships on Sep 9, 2026

$ 2,409.99 USD

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Qty

$ 2,409.99 USD

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Whether you're seeking a replacement to regain optimal power or enhance your vehicle's performance, this cylinder head is an excellent choice. Crafted by AMC, a trusted OEM supplier, and proudly made in Spain, it ensures reliability and performance you can count on.

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Camshaft - Exhaust Side 647108 - Priced Each

T#:31158823

Part#: 11317565422

Back Ordered

$ 216.99 USD

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Qty

$ 216.99 USD

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