GM 94056175 Duramax Rear Engine Cover to Block Coolant O-Ring Seal 2001-2010

This is a genuine GM OEM Duramax Rear Engine Cover-to-Block Coolant O-Ring Seal.

These o-rings are sandwiched between the rear engine cover and engine block. Sometimes referred to as the rear cover coolant crossover. 2 Are required per engine.

Fitment:

LB7 LLY LBZ LMM, 2001-2010 Duramax

Note:

2011-2016 LML Based Engines require GM # 12644448.