Find Parts That Fit Your Vehicle

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.

Sub-Categories

Sort By:

OEM Head Bolt Set - M50 M52 S50 S52

T#:1551

Part#: 11121721938

In Stock

Sale - Save 66% $ 62.21

This product was last offered at the strikethrough price on
05-14-2026

$ 20.94 USD

Add to Wish List

Qty

Sale - Save 66%

$ 62.21

This product was last offered at the strikethrough price on
05-14-2026

$ 20.94 USD

Add to Wish List

Head Bolt Set for all M50 engines with a steel engine block.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1991-1995 E34 BMW 525i
1997-1998 E39 BMW 528i
1998-2000 Z3 BMW M Roadster M Roadster

Show More Show Less

URO Cam Gear - Exhaust - E60 E9X Z4 N54 3.0L

T#:53079364

Part#: 11367540348

Ships in 1 Business Day

$ 177.99 USD

Add to Wish List

Qty

$ 177.99 USD

Add to Wish List

A common source of exhaust-related codes, VANOS, and boost-related issues can often be traced back to this cam gear. If yours is worn and failed, replace it with this quality replacement part from URO.

Show More Show Less

URO Exhaust Variable Valve Timing Sprocket - N20

T#:55749602

Part#: 11367583819

Ships in 1 Business Day

$ 194.99 USD

Add to Wish List

Qty

$ 194.99 USD

Add to Wish List

The variable valve timing system on modern BMW engines is critical for both daily street driveability and wide-open throttle performance. When the factory exhaust gear wears down, it compromises the responsiveness of your BMW powerplant.

Show More Show Less

Mechanical Water Pump - B58

T#:50031906

Part#: 11518482251

In Stock

$ 109.99 USD

Add to Wish List

Qty

$ 109.99 USD

Add to Wish List

Experiencing weak cabin heat at idle, overheating warnings, or unusual noises from beneath the dash? These are common signs that your water pump may need replacement. This cooling system water pump comes complete with a new water pump gasket for a proper seal. Note: One mounting thread includes a self-tapping screw.

Show More Show Less