Ignition Wire Set, Karlyn-STI - E34 525i M20

This part is listed by BMW as BMW part number 12121726037 (12 12 1 726 037) and is described as a direct replacement ignition wire set for 1989-1990 E34 525i with the M20 engine.

This part is manufactured by an aftermarket supplier of European auto parts, including many electrical components. While not carrying OEM status, this part follows the design of the original very closely and uses similar materials. An aftermarket part may even have the same TUV approval as its OEM counterpart. The brand may even be OEM to another manufacturer besides BMW. This aftermarket brand has a two year warranty - the same as Genuine BMW and OEM brands.