APP’s Side Freeze Plug—bolt on with O ring will eliminate blown freeze plugs on Cummins engines due to high rpm and increased coolant pressures in modified engines. It's also a great way to dress up your diesel engine as the engine is usually black, and the freeze plugs are a shiny aluminum.
• Eliminates blown freeze plugs
• Machined in the USA from Military grade 6061 aluminum
• Includes O-ring
Fits all 3.9L, 5.9L, and 6.7L Cummins diesel engines ’89 to Current
Vehicle could need from 1 to 4 depending on the block:
Engine Years Number of Side Freeze Plugs*
3.9L 4BT 1989-1998 1 or 2
5.9L 6BT 1989-1998 3 or 4
5.9L/6.7L 24 Valve 1998-current 3
* For reference only, please confirm the quantity needed for your specific engine.
Attitude Performance: 1009