2007.5-2018 Dodge 6.7L Cummins DUALOY Piston Kit

Regular price $815.00
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  • 1× 2007.5-2018 Dodge 6.7L Cummins DUALOY Piston Kit $815.00

Dualoy Diesel pistons are cast and machined in-house to maintain the highest level of quality and consistency. Available for most popular diesel light and medium-duty truck applications, and engine codes. All Dualoy pistons feature a high strength top ring carrier to improve strength of the top land, and resistance to the extreme heat of diesel engines. Oil cooling galleries are cast into the pistons, as required depending on the specific application.

24V, iron ring insert in top groove. Keystone top ring.

DUALOY – Cummins 409CI/6.7L

Product Specifications

Sold As Piston Set with Rings
Engine Manufacturer Dodge
Engine Family Cummins
Eng. Disp. In. 409
Eng. Disp Liters 6.7
Year Range 2007-2018
Vin Code A, C, L
Oe Assembly 4938619
Bore (in) 4.212
Bore (mm) 107
Stroke (in) 4.882
Stroke (mm) 124.0
Oversized STD-.50-.100
Oversize STD
Ring Pack 2.87K, 2.5mm, 3.46mm
Top Land .315
Pin Number 7201D-GP
Pin Type Floating
Pin Diameter (in) 1.575
Pin Diameter (mm) 40.0
Compression Height IN 2.734
Compression Height MM 69.45
Crown (cc) +51.4cc
Alloy 332
Compression Ratio 17.2

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A bottle of Maxton MTX Diesel Oil 4T SE 10W-40 SAE 30 oil stands on a dark workbench in a workshop setting, with a turbocharger and engine parts blurred in the background under dramatic red lighting.