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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Kolbenschmidt Engine Camshaft - BMW E30 E34 M20 2.5L
Kolbenschmidt Engine Camshaft - BMW E30 E34 M20 2.5L
Kolbenschmidt - Corporate Logo
T#:49335130
Part#: 11311716138
In Stock at Vendor
New Item
$ 234.18

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

$ 215.74 USD
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$ 215.74 USD
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The camshaft has a critical job that impacts engine performance and efficiency. As the camshaft spins, the cam lobes open and close intake and exhaust valves, which is vital to the engine's operation. If the lobes become worn or damaged, the engine will suffer drastically. It is imperative to replace the camshaft when damaged or when wear occurs to prevent costly repair bills and to ensure the engine is operating smoothly and efficiently.
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ACL Race Series High Performance Connecting Rod Bearing Set - Oversized +0.25 - BMW S14 2.0L/2.3L/2.5L
ACL Race Series High Performance Connecting Rod Bearing Set - Oversiz...
ACL - Corporate Logo
T#:48677225
Part#: 4B1568H-.25
Special Order: No Guaranteed ETA
New Item
$ 118.99 USD
Free Shipping on orders $49 and up
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$ 118.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Introducing the BMW S14B20, S14B23, and S14B25 Race Series High-Performance Con Rod Bearing Set by Automotive Components Limited. Elevate your BMW's performance with these precision-engineered con rod bearings, specifically designed for performance BMW engines.
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