Bypass Housing to Cylinder Head. 3.9L. May be made from fiber or a rubberized composite material This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors.
Genuine GM Coolant Crossover Pipe Gasket 12623852
Genuine GM Coolant Crossover Pipe Gasket 12623853
Genuine GM Coolant Crossover Pipe Gasket 12577704
Genuine GM Coolant Recovery Reservoir 92164620
