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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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Bav Auto Crankshaft Front Oil Seal Removal / Installer Tool - N54, N55
Bav Auto Crankshaft Front Oil Seal Removal / Installer Tool - N54, N5...
Bav Auto Tools - Corporate Logo
T#:580444
Part#: B8800139
Ships on Sep 1, 2026
Sale - Save 5% $ 203.99

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

$ 193.79 USD
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Sale - Save 5%
$ 203.99

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

$ 193.79 USD
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Used in removal and installation of the front crankshaft seal on BMW N55 engines, a common job that you can save yourself a ton of money doing at home.
OEM Head Bolt Set - M50 M52 S50 S52
OEM Head Bolt Set - M50 M52 S50 S52
Victor Reinz - Corporate Logo
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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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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Bav Auto Crankshaft Rear Oil Seal Removal / Installer Tool - N51, N52 and N54
Bav Auto Crankshaft Rear Oil Seal Removal / Installer Tool - N51, N52...
Bav Auto Tools - Corporate Logo
T#:580412
Part#: B8800104
In Stock
Sale - Save 5% $ 147.99

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

$ 140.59 USD
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Sale - Save 5%
$ 147.99

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

$ 140.59 USD
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Add to Wish List
For removal and installation of the rear crankshaft seal on BMW N51, N52 and N54 engines.
Bav Auto Intermediate Lever Valve Spring Compressor - N20/26 N55
Bav Auto Intermediate Lever Valve Spring Compressor - N20/26 N55 ...
Bav Auto Tools - Corporate Logo
T#:580431
Part#: B8800124
Ships on Sep 1, 2026
Sale - Save 15% $ 178.99

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

$ 152.14 USD
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Sale - Save 15%
$ 178.99

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

$ 152.14 USD
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For installation and removal of pressure springs on intermediate levers of valve train. Ensures quick, easy and safe handling of these high force springs.
Bavarian Autosport Crankshaft Holding Tool - BMW
Bavarian Autosport Crankshaft Holding Tool - BMW
Bav Auto Tools - Corporate Logo
T#:580450
Part#: B8800145
In Stock
Sale - Save 15% $ 77.99

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

$ 66.29 USD
Free Shipping on orders $49 and up
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Sale - Save 15%
$ 77.99

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

$ 66.29 USD
Free Shipping on orders $49 and up
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Makes removal of crankshaft hub nut/bolt much easier. A must-have for replacing timing chains, oil pump chains, leaking crankshaft seals and more.
Bav Auto Crankshaft Pulley Holding Tool
Bav Auto Crankshaft Pulley Holding Tool
Bav Auto Tools - Corporate Logo
T#:580404
Part#: B8800094
In Stock
Sale - Save 10% $ 180.99

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

$ 162.89 USD
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Sale - Save 10%
$ 180.99

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

$ 162.89 USD
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Bav Auto's Crankshaft Pulley Holding Tool enables you to remove your crankshaft nut/bolt with ease - we recommend this tool if you intend on replacing timing chains, oil pump chains, leaking crankshaft seals, etc.
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Intake Valve - E36 E46 E34 E39 Z3 (M42, M44, M50, M52, M52TU)
Intake Valve - E36 E46 E34 E39 Z3 (M42, M44, M50, M52, M52TU) ...
TRW - Corporate Logo
T#:1617
Part#: 11341739820
Back Ordered
Sale - Save 27% $ 15.99

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

$ 11.72 USD
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Sale - Save 27%
$ 15.99

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

$ 11.72 USD
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Replacement intake valve in the stock size. Fits all VAN0S versions of the M50/M52/M52TU, including 1993-2000 323, 325, 328 and the E36 M3 3.0/3.2. Also fits E39 528 and Z3 2.3, Z3 2.8, MZ3 (S52 3.2), M Roadster, M Coupe.
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