Description

1989-1993 Dodge 5.9L Cummins 7mm to 9mm Injector Nozzle Gasket Adapter

Dipaco part number D3919358 is an injector nozzle tip adapter sleeve for 1989-1993 Dodge trucks with the 5.9L Cummins diesel engine.

This adapter allows the use of 7mm injectors in 9mm cylinder heads.  These gaskets measure 1.5 mm thick and get compressed to seal out combustion gases from the injector opening in the cylinder head.  This adapter should be used alone and not with other nozzle gaskets.  Like a nozzle gasket, these are a one-time use, and it is recommended to replace the adapter each time the injector is removed to ensure a proper seal each time the injector is installed.

This injector adapter sleeve converts the later style 7mm injector tip to fit into the early style 9mm cylinder head bore.  Works with 6BT3.9, 6BTA3.9, 4BT3.9 and 4BTA3.9 Cummins engines.

Starting in 1990, cylinder heads for Cummins B Series engines were changed to use a 7mm tip instead of a 9mm tip. The change was made to increase the material in the head and reduce the chances of cylinder head cracking.

Sold individually.

DIPACO is an employee-owned company that supplies diesel fuel injection parts and related products to the global diesel industry. Established in 1948 and based in Windsor, Wisconsin, DIPACO offers a variety of products, including injectors, repair kits, and automotive diesel fuel pumps. These products are compatible with a range of engine applications, including those from Dodge, Ford, GM, and Sprinter. DIPACO has a network of distributors worldwide, including an Australian sister company called INPACparts. In 2021, Diesel Forward acquired DIPACO, which expanded its fuel system product line. DIPACO has a long history in the diesel engine parts industry, initially focusing on engine parts for Detroit Diesel, Buda, and Allis-Chalmers engines. The company began supplying diesel fuel injection parts in the mid-1960s.

Cross-Reference Numbers:

042081
3919358
D3919358
DIPD3919358

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