Summary
NPR pistons for 2004.5-2008 Dodge trucks with the 5.9L 24-valve turbo diesel 6-cylinder engine; 4.016" (102mm) Bore; Cummins ISBe/QSB HO Turbocharged; Engine Code: ETH; VIN: C. P/N (6) 11-856. Pistons include pins and locks. Piston specifications are as follows:
BORE: 102.00mm/4.016" (at STANDARD)
PISTON LENGTH: 105.20mm (4.142")
COMP. DISTANCE: 71.40mm (2.811")
PISTON PIN LENGTH: 83.00mm (3.268")
PIN DIAMETER: 40.00mm (1.575")
HEAD TYPE: Recessed Head .492" deep x 3.001" diameter
COMPRESSION RATIO: 17.1:1
RING LANDS: 3.00mmK-2.35mm-4.00mm
OE REFERENCE #: 3970192
TECH NOTE: There were two different pistons used in 2004 models. The earlier model pistons have a deeper head recess. Be sure to compare your piston with the specifications listed above. Using the incorrect piston, can result in engine damage.