If you are removing the fuel injectors from the engine for service, the intake air horn has to be removed and the original gasket will be ruined in the process. Have a new gasket ready to go.
The replacement intake air horn gasket for '89-'07 Dodge Turbo Diesel trucks with the 5.9L engine is sold individually.
*'89-'98 12-valve requires 1 gasket to refit the intake air horn.
*'98.5-'07 24-valve requires 2 gaskets to refit the intake air horn.
CUMMINS 3969988 Intake Air Horn Gasket ('89-'07)