BMW Internal Engine Parts for BMW 3 Series E30 (1984-1991)

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

Upgrade to the less restrictive cylinder head found on the M20 2.5L

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:222771

Part#: 11121707032C

Ships in 9 Business Days

$ 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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BMW E28 / E30 / E43 - M20 Complete Cylinder Head Basic Replacement Ki...

Upgrade to the less restrictive cylinder head found on the M20 2.5L

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:2810081

Part#: 11121707032-3KT

Ships in 9 Business Days

Sale - Save 1% $ 1,614.99

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

$ 1,598.57 USD

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Qty

Sale - Save 1%

$ 1,614.99

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

$ 1,598.57 USD

Add to Wish List

Includes all of the necessary components to service and replace the head on your M20 powered BMW

E24 M6, E28 M5, E30 M3 Evo Cam Gear - BMW Motorsport

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:337970

Part#: 11311312535

Ships on Sep 17, 2026

$ 360.99

This product was last offered at the strikethrough price on
03-25-2026

Starting at $ 341.99 USD

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Starting at $ 341.99 USD

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The BMW Motorsport Cam Gear retards the exhaust camshaft of the 88-91 M3 and 88-89 M5 and M6. This allows for better exhaust scavenging, which in turn gives a moderate torque increase. This is very useful in day-to-day driving. This cam gear came stock on the EVO2 M3. (+11 lb./ft torque increase at 3000 rpm on M3 and +22 lb./ft on a M5/M6). Kit includes Cam gear and valve cover gaskets. Better acceleration and improved torque for your M5/M6

This item fits the following BMWs:
1988-1991 E30 BMW M3
1988 E28 BMW M5
1987-1989 E24 BMW M6

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BMW Internal Engine Parts for BMW 3 Series E30 (1984-1991)

Sub-Categories

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

BMW E28 / E30 / E43 - M20 Complete Cylinder Head Basic Replacement Ki...

E24 M6, E28 M5, E30 M3 Evo Cam Gear - BMW Motorsport

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