Seller notes

For Fit (STD) size BMW N54B30 N55B30 135i 335i 535i Main & con rod bearings NEW DESCRIPTION: 100% brand new, never been used. Easy to install in use. Great quality and great fit. For BMW 135i M135i M235i 335i 535i 640i 740i N54B30 N55B30 con rod & main bearings. The crankshaft, connecting rods and bearings are extremely important in every engine build, because they convert the reciprocating motion of the pistons into rotational torque. The longer the stroke, the greater the leverage effect and t...

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