or E39 528i

aircraft-grade steel

5 mm connecting rods are designed to fit BMW N63 and S63 engine found in the following applications:

allowing them to withstand the intense demands of high-performance use

These spring seat locators feature a hard Nitrided surface treatment for improved toughness and wear resistance

Cometic Multi-layer Steel Head Gasket, BMW M52TU/M54 1301415 or E39 528iThis Cometic MLS Head Gasket is designed to replace BMW part numbers 11127501304 and 11127501305, specifically for the M52TU and M54 aluminum block engines. Cometic MLS Gaskets are composed of multiple layers of stainless steel, the number of layers used varying by application. These layers consist of both proprietary, high temperature coated and uncoated stainless steel. Additional layers increase active seal height and can be used to fine tune