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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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Rocker Arm - E30 325e 325i 325is - E34 525i (M20)

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T#:3387

Part#: 11331271429

In Stock

$ 33.99

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

$ 26.99 USD

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If there is one weak point to the internals of the M20 engine, it's the camshaft rocker arms. They're actually designed to be the weak link to prevent more extensive damage elsewhere in the valvetrain. The rocker arm actuates the valves as the cam lobe makes contact. But sustained running at high RPM will cause the valves to 'float' or stay open which can lead to contact between the piston and the valves. If this happens too often, it will fatigue and snap the rocker arm. Therefore, any track driven E30 should have the rockers inspected or replaced often, along with a correct valve adjustment. And any high mileage M20 engine is running the risk of failure because of fatigue and weak valve springs. It's also a good idea to use new rocker arms any time a new cam is installed as the cam and the rocker wear together.

Replacement of the rocker arms can be done with the cylinder head in the car but more often, the head is removed. This makes removing the rocker shafts easier. Either way, a new cylinder head gasket set is recommended as it includes all of the gaskets and plugs that you would need. If the head stays on the car, the radiator may need to be removed to allow more access for the shafts to come out. Replacing the engine timing belt is not done at the same time and should be treated as a separate job.

These Febi M20 rocker arms are sold per rocker (order 12 for a complete set). You may also want to replace the eccentric adjusters as it's easy to do and worn eccentrics may prevent you from properly adjusting the valves afterward.

This item fits the following BMWs:
1984-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1989-1990 E34 BMW 525i

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Rocker Arm - M10 4 cylinder, M30 6 cylinder engine

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T#:6780

Part#: 11331271833

In Stock

Sale - Save 5% $ 30.99

This product was last offered at the strikethrough price on
07-13-2026

$ 29.44 USD

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Sale - Save 5%

$ 30.99

This product was last offered at the strikethrough price on
07-13-2026

$ 29.44 USD

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Replace your worn rocker arm with this unit. The rocker arms make contact with the camshaft and control the movement of the valves. Any time a camshaft is replace it is always a good idea to replace the rocker arms with new units. It is also a good idea to replace the rocker shafts that the arms mount on.
Since the late 1800’s Febi has been fabricating replacement metal parts. This history is self evident in the quality and vast amount of applications they service. With more than 34,000 repair solutions for cars and commercial vehicles you can be sure Febi has you covered.

This item fits the following BMWs:
1970-1976 2002 BMW 1600 2002 2002tii
1984-1985 E30 BMW 318i
1976-1981 E12 BMW 528i 530i
1982-1988 E28 BMW 533i 535i 535is
1989-1993 E34 BMW 535i
1982-1989 E24 BMW 633csi 635csi
1981-1987 E23 BMW 733i 735i
1988-1992 E32 BMW 735i 735il

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Glyco Connecting Rod Bearing Set

T#:375825

Part#: 11241284849

Ships in 2 Business Days

$ 92.02

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

$ 84.36 USD

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$ 84.36 USD

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Standard bore - 45mm

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

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$ 30.59

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

$ 27.99 USD

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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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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

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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Main Bearing Set - Standard Size - E30 M3 2.3 liter

T#:3166

Part#: 11210666110

Ships in 4 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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Febi Camshaft - E30, E34

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T#:19082

Part#: 11311716138

In Stock at Vendor

$ 368.34

This product was last offered at the strikethrough price on
05-15-2026

$ 292.43 USD

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$ 292.43 USD

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CAMSHAFT 11311716138 Manufactured by Febi

This item fits the following BMWs:
BMW 3 Series - 325i, 325i Convertible, 325is, 325ix
BMW 5 Series - 525i

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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 2 Business Days

$ 331.13

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

$ 305.57 USD

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$ 305.57 USD

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Febi Eccentric Bolt - E12, E21, E23, E24, E28, E3, E30, E32, E34, E9 ...

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T#:382364

Part#: 11331744355

In Stock

$ 2.99 USD

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$ 2.99 USD

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Used on rocker arm eccentric

Osvat Intake Valve - E28, E30, E34

T#:1196099

Part#: 11341706631

In Stock

$ 12.99

This product was last offered at the strikethrough price on
06-22-2026

$ 10.99 USD

Limited Qty Sale

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$ 12.99

This product was last offered at the strikethrough price on
06-22-2026

$ 10.99 USD

Limited Qty Sale

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Standard replacement intake valve

Osvat Exhaust Valve - Sold Each - E28, E30, E34

T#:1196100

Part#: 11341708896

In Stock at Vendor

$ 35.98 USD

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$ 35.98 USD

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Replace your worn valves

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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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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$ 12.99 USD

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OEM BMW Connecting Rod Bush

Intake Valve - Priced Each

T#:596779

Part#: 11341267721

In Stock at Vendor

$ 13.99

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

$ 8.99 USD

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$ 8.99 USD

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Replacement intake valve 40.0/6.97MM

Valve Guide - Intake/Exhaust 1st Replacement (13.05 X 7.00 Mm) ...

T#:596716

Part#: 11121280523

In Stock at Vendor

$ 12.29 USD

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$ 12.29 USD

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Replacement Valve Guide from Canyon Engine

Glyco Connecting Rod Bushing

T#:374292

Part#: 11241278209

Ships in 2 Business Days

$ 6.11 USD

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$ 6.11 USD

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Press fit into small journal of connecting rod

Timing Chain - E30 E32 E34

T#:4468

Part#: 11311716986

In Stock at Vendor

$ 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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Febi Hydraulic Lifter - E30, E32, E34, E36, E38

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T#:382358

Part#: 11321734341

Ships on Oct 19, 2026

$ 17.99 USD

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$ 17.99 USD

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Replaces noisy or stuck lifters

Febi Rocker Arm Shaft Plug - E28, E30, E34

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T#:381746

Part#: 11331264519

Ships on Oct 19, 2026

$ 6.99 USD

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$ 6.99 USD

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4 required per vehicle

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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$ 172.99 USD

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Standard bore

Febi Intake Valve - Sold Each - E28, E30, E34

For vehicles with production date from 12/1986

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T#:381760

Part#: 11341708895

Back Ordered

$ 14.99 USD

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$ 14.99 USD

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Replace your worn valves

Febi Cylinder Head Bolt Set - E30, E34

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T#:363803

Part#: 11121726478

Special Order: No Guaranteed ETA

$ 32.99 USD

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$ 32.99 USD

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A complete set of 14 cylinder head bolts

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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$ 108.99 USD

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59.75MM(+0.25) bore

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