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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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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

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Qty

Sale - Save 66%

$ 62.21

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

$ 20.94 USD

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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

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Timing Chain - Upper

T#:17871154

Part#: 11311432177

In Stock

Sale - Save 20% $ 27.99

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

$ 22.39 USD

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Qty

Sale - Save 20%

$ 27.99

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

$ 22.39 USD

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Timing Component

T#:17871158

Part#: 11367583208

In Stock

Sale - Save 20% $ 199.99

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

$ 159.99 USD

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Qty

Sale - Save 20%

$ 199.99

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

$ 159.99 USD

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BMW N52 N54 Collar Screw

T#:17871157

Part#: 11367524954

In Stock

Sale - Save 20% $ 5.99

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

$ 4.79 USD

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Qty

Sale - Save 20%

$ 5.99

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

$ 4.79 USD

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Holds the camshaft gear to the camshaft, measures M10X1X94.

Exhaust Valve - Priced Each

T#:54388348

Part#: 11347513024

Ships in 1 Business Day

$ 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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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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BMW Internal Engine Parts

Sub-Categories

OEM Head Bolt Set - M50 M52 S50 S52

Timing Chain - Upper

Timing Component

BMW N52 N54 Collar Screw

Exhaust Valve - Priced Each

Intake Valve - Priced Each

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