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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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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 Oct 6, 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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AMC Cylinder Head - Bare - E39, E46, E53, E60, E61, E83, Z3, Z4 ...

T#:19277

Part#: 11127514540

Ships on Sep 30, 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

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 30, 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

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

T#:22168

Part#: 11121707032

Ships on Sep 30, 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

OEM Bosch Crankshaft Sensor - E70 E90 M57 3.0L

T#:639133

Part#: 13627809334

Ships in 3 Business Days

$ 120.99

This product was last offered at the strikethrough price on
08-27-2026

$ 79.16 USD

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$ 79.16 USD

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The crankshaft position sensor measures the speed at which the crank is turning and adjusts fueling via the ECU to match. If it fails, your computer will not know the speed and will fuel it improperly. Replace yours with a Bosch unit to get your computer reading everything properly again. Installs exactly in the place of your old sensor and will eliminate your car's idle, performance, and misfiring problems.

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Crank Pulley With Dampener

T#:17140168

Part#: 11238638614

Ships on Dec 21, 2026

$ 317.99 USD

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$ 317.99 USD

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Exhaust Valve - Priced Each

T#:54388348

Part#: 11347513024

Ships in 2 Business Days

$ 23.99

This product was last offered at the strikethrough price on
08-07-2026

$ 19.99 USD

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$ 19.99 USD

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On the street or at the track, your engine’s top end takes a beating. If you are rebuilding a cylinder head due to high mileage, overheating, or a mechanical overrev, you need valves that can handle the heat. This Corteco Exhaust Valve is the exact OEM replacement you need to guarantee factory-level sealing and long-term durability under demanding conditions.

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Camshaft - Inlet Side 647107 - Priced Each

T#:54388484

Part#: 11317587756

Ships on Sep 29, 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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Intake Valve - Priced Each

T#:54388474

Part#: 11347513023

In Stock

$ 20.53

This product was last offered at the strikethrough price on
07-23-2026

$ 15.99 USD

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$ 15.99 USD

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A weak or worn intake valve causes lost compression, erratic idle, and drops in top-end power. When it's time to refresh your cylinder head for reliability on the street or the circuit, this Corteco intake valve is up to the task.

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Shaft Seal - Front Seal

T#:17272955

Part#: 11111485171

In Stock

$ 10.99 USD

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$ 10.99 USD

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Cylinder Head 910570 - R55 / R56 / R57

T#:22723740

Part#: 11127577371

Ships on Sep 30, 2026

$ 2,409.99 USD

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$ 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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