Description:

The crankcase is the most important part of the engine. It withstands the force transmitted by the connecting rod, and converts it into torque output through the crankshaft and drives other accessories on the engine to work. This kit helps relieve pressure from the crankcase as needed, replacement oil separator, replaces cracked and leaking OE units while restoring emissions system function. Part Number: 11617531423, 11157567801, 11157527570, 11617522933, 11157522931. Replacement For These Engines: N52 B30 BF, N52 B30 A, N52 B25 A. Replacement For BMW 323i, 525xi, 530xi 2006-2007; Replacement For 325i 330i 2004-2006; Replacement For 325xi, 330xi 2005-2006; Replacement For 525i, 530i 2005-2007; Replacement For Z4 2006-2008.