This standard size (STD) piston & ring set is designed for Cummins B-Series engines, including the 6BT 5.9L and 4BT 3.9L platforms. It is a direct replacement for Cummins OEM part number 3928673 and is commonly used in 1994–1998 Dodge Ram 2500 & 3500 as well as industrial and agricultural applications.
All dimensions match OEM specifications and are intended for engines with standard bore size.
Engine Compatibility
Cummins 6BT 5.9L
Cummins 4BT 3.9L
B-Series, 12-Valve engines
Vehicle & Equipment Applications
Dodge Ram 2500 / 3500 (1994–1998)
Industrial engines
Agricultural equipment
Construction and generator applications using Cummins 6BT or 4BT engines
5.9L Cummins Piston Ring Set 6BT 4BT 12V 3928673 STD 1994-1998 Dodge 2500 3500
Yes. 6BT is the Cummins engine family name, and 5.9L is the displacement. They refer to the same engine platform.
No. This set is intended for 12-valve Cummins B-Series engines.

















