Injector Cup Sealant.
For 2001, 2002, 2003, 2004 GM 6.6L Duramax LB7
A small amount of this red sealant goes at the bottom of each injector cup to ensure proper sealing.
For 2001, 2002, 2003, 2004 GM 6.6L Duramax LB7
A small amount of this red sealant goes at the bottom of each injector cup to ensure proper sealing.