Hayden 398 Automatic Transmission Oil Cooler Line Connector

Transmission Oil Cooler Line Connector Kit

Hayden 398 is an oil cooler install kit built as a transmission fitting kit for automatic transmission vehicles. It is performance rated and used to connect transmission cooler lines on select Dodge applications, including Dodge Ram, Dakota, and Durango models with the specified thread and flare styles.

• Oil cooler install kit for transmission line connection service
• Performance rated for transmission cooling applications
• Fitting kit style for select automatic transmission vehicles
• Application-specific coverage for 9/16"-24 thread fittings and 5/8"-18 S.A.E. 45 degree fittings
• Hayden Cooler Inst.Kit product line

Fitment and Application Details

Compatible With select 1999-2004 Dodge trucks, vans, and SUVs where the transmission cooler line connection matches the listed thread and flare specifications. Fits 2004 Dodge Caravan, N/A; Fits 2004 Dodge Grand Caravan, N/A; Fits 2003-2004 Dodge Sprinter 2500, N/A; Fits 2003-2004 Dodge Sprinter 3500, N/A; Fits 1999-2003 Dodge Dakota, N/A; Fits 2000-2003 Dodge Dakota, N/A; Fits 2000-2003 Dodge Durango, N/A; Fits 2000-2003 Dodge Ram 1500, N/A; Fits 1999-2003 Dodge Ram 1500 Van, N/A; Fits 1999-2003 Dodge Ram 2500 Van, N/A; Fits 1999-2003 Dodge Ram 3500 Van, N/A; Fits 1999-2002 Dodge Ram 1500, N/A; Fits 2000-2002 Dodge Ram 2500, N/A; Fits 2000-2002 Dodge Ram 3500, N/A; Fits 2000-2001 Dodge Ramcharger, N/A; Fits 1999 Dodge Dakota, N/A; Fits 1999 Dodge Durango, N/A; Fits 1999 Dodge Ram 1500, N/A; Fits 1999 Dodge Ram 2500, N/A; Fits 1999 Dodge Ram 3500, N/A; Fits 1999 Dodge Ramcharger, N/A.

This part cross-references 0398 and 53247 for the same application.

What It Helps Address

• Broken or worn transmission cooler line fittings
• Incorrect thread or flare connection at the transmission cooler line
• Leak points at the oil cooler line interface
• Service replacement needs during transmission cooler line repair
• Fitment issues on Dodge Ram, Dakota, and Durango cooler line connections

Installation Notes and Tips

Verify the transmission cooler line thread and flare style before installation. This Hayden 398 kit is listed for vehicles using 9/16"-24 thread fittings or 5/8"-18 S.A.E. 45 degree fittings, depending on application. Match the vehicle year, model, and connection style exactly to the fitment notes for proper installation.

Quality Assurance

Hayden identifies this part as a performance rated transmission fitting kit for oil cooler installation service. The Cooler Inst.Kit line is built for application-specific use on listed Dodge vehicles and transmission cooler line configurations.