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Crankshafts

The engines crankshaft takes all of the explosive energy from the pistons and translates this to the drivetrain. When bearings spin due to improper maintenance or oil starvation, the shaft can become scored and is no longer serviceable. Turner carries Genuine BMW replacements that fit and perform exactly as intended
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Rein M54 S54 O-Ring Seal - 12141748398 - E46, E39, E60, E83, E53
Rein M54 S54 O-Ring Seal - 12141748398 - E46, E39, E60, E83, E53 ...
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Rein - Corporate Logo
T#:12463
Part#: 12141748398
In Stock
$ 4.99

This product was last offered at the strikethrough price on
06-29-2026

$ 2.75 USD
Free Shipping on orders $49 and up
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$ 2.75 USD
Free Shipping on orders $49 and up
Add to Wish List
This is the o-ring used for most BMW camshaft sensors and crankshaft sensors. Although most sensors that we sell come with this o-ring at no charge, they may be the source of oil or fluid leaks.

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