Dualoy Diesel Pistons by UEM Pistons & Rings

Premium Dualoy Diesel Pistons – Built for Strength & Performance

Upgrade your diesel engine with Dualoy Diesel Pistons, engineered for durability and peak performance. Cast and machined in-house, our pistons ensure unmatched quality and consistency for light and medium-duty diesel trucksacross various engine codes.


Enhanced Strength:  High-strength top ring carrier for superior durability and heat resistance.

Precision Engineered:  Manufactured in-house for exact fit and performance.

Optimized Cooling:  Integrated oil cooling galleries (application-specific) to handle extreme conditions.


Boost reliability and efficiency—Get Your Dualoy Diesel Pistons Today!

Dualoy Diesel Pistons by UEM Pistons & Rings

Premium Dualoy Diesel Pistons – Built for Strength & Performance

Upgrade your diesel engine with Dualoy Diesel Pistons, engineered for durability and peak performance. Cast and machined in-house, our pistons ensure unmatched quality and consistency for light and medium-duty diesel trucks across various engine codes.


Enhanced Strength:  High-strength top ring carrier for superior durability and heat resistance.

Precision Engineered:  Manufactured in-house for exact fit and performance.

Optimized Cooling:  Integrated oil cooling galleries (application-specific) to handle extreme conditions.


Boost reliability and efficiency—Get Your Dualoy Diesel Pistons Today!

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775.882.7790

FOR APPLICATION INFO

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Duramax

HAMMER SERIES

Dualoy Hammer Series pistons are completely machined to OEM specs except for the unfinished crown. Hammer Pistons feature a steel top ring carrier, fully machined ring grooves, custom skirt profile and a fully machned pin hole. The crown is left unfinished with extra stock to allow for altered compression height, valve pockets or your own custom bowl design. Dualoiy Hammer Series include detailed prints to establish allowable machining depths and alterations to the crown.

Years

2010-2017

Engine Family

6.6L Duramax LML/LGH with unfinished crown

VIN

8.L

Piston Set

7230D

Available Size

0.5mm

FORD F250, F350, F450, F550

Application Years Engine Family VIN Piston & Ring Kit Available Oversizes OE Part # Mahle fitment reference #
Ford F250, F350, F450, F550 1994-2003 7.3L Navistar T444E Power Stroke F 7207DKT STD .25MM .5MM .75MM 1.0MM F81Z6102AA 224-3163
Ford F250, F350, F450, F550 1994-2003 7.3L Navistar T444E Power Stroke .010” RCH F 7217DKT STD .25MM .5MM .75MM 1.0MM 224-3409
Ford F250, F350, F450, F550 2003-2004 6.0L Navistar VT365 Power Stroke P 7203DKT STD .25MM .5MM .75MM 1.0MM XC3Z6108AA 224-3454
Ford F250, F350, F450, F550 2004-2007 6.0L Navistar VT365 Power Stroke P 7204DKT STD .25MM .5MM .75MM 1.0MM 4C3Z6108AA/1843285C2 224-3503
Ford F250, F350, F450, F550 2004-2007 6.0L Navistar VT365 Power Stroke .010” RCH P 7214DKT STD .25MM .5MM .75MM 1.0MM 224-3902
Ford F250, F350, F450, F550 2008-2010 6.4L Navistar Power Stroke R 7205DKT STD .25MM .5MM .75MM 1.0MM 8C3Z6108F / 1878410C1 224-3666
Ford F250, F350, F450, F550 2008-2010 6.4L Navistar Power Stroke .010” RCH R 7215DKT STD .25MM .5MM .75MM 1.0MM 224-3891
Ford F250, F350, F450, F550 2011-2016 6.7L Power Stroke Scorpion 34mm Pin T 7206DKT STD .25MM .5MM .75MM 1.0MM BC3Z6108A 224-3852
Ford F250, F350, F450, F550 2011-2016 6.7L Power Stroke Scorpion 34mm Pin .010” RCH T 7216DKT STD .25MM .5MM .75MM 1.0MM 224-4026
Ford F250, F350, F450, F550 2017-2020 6.7L Power Stroke Scorpion 35mm Pin T 7223DKT STD .25MM .5MM .75MM 1.0MM HC3Z6108A 224-4051
Ford F250, F350, F450, F550 2017-2020 6.7L Power Stroke Scorpion 35mm Pin .010” RCH T 7233DKT STD .25MM .5MM .75MM 1.0MM N/A

DODGE RAM 2500/3500

Application Years Engine Family VIN Piston & Ring Kit Available Oversizes OE Part # Mahle fitment reference #
Dodge/Ram 2500, 3500 1984-1998 5.9L 12V 6BT Cummins D 7199DKT STD .5MM 1.0MM 3802493 224-3520
Dodge/Ram 2500, 3500 1998-2002 5.9L 24V Non-HO ISB Cummins 6 7198DKT STD .5MM 1.0MM 3946153 224-3355
Dodge/Ram 2500, 3500 1998-2002 5.9L 24V HO ISB Cummins 7 7200DKT STD .5MM 1.0MM 3800838 / 5018093AA 224-3354
Dodge/Ram 2500, 3500 2003-2004 5.9L 24V ISB ETC/Non-HO Cummins 6 7196DKT STD .5MM .75MM 1.0MM 3958675 / 5093117AB 224-3674
Dodge/Ram 2500, 3500 2003-2004 5.9L 24V ISB HO Cummins C 7197DKT STD .5MM 1.0MM 3965497 / 5093119AA 224-3672
Dodge/Ram 2500, 3500 2005-2009 5.9L 24V ISB ETH/HO Cummins C 7195DKT STD .5MM 1.0MM 3970192 / 5139059AA 224-3673
Dodge/Ram 2500, 3500 2007-2018 6.7L 24V ISB Cummins ETJ, ETK A,L 7201DKT STD .5MM .75MM 1.0MM 4938619 / 68005277AA 224-3732
Dodge/Ram 2500, 3500 2013-2018 6.7L 24V ISB ETK Cummins L 7224DKT STD .5MM 1.0MM 5336107 / 68210137AA 224-3963
Dodge/Ram 2500, 3500 2013-2018 6.7L 24V ISB ETK Cummins .010” RCH L 7234DKT STD .5MM 1.0MM
Dodge/Ram 2500, 3500 2013-2018 6.7L 24V ISB ETK Cummins .015” RCH L DU10160-_ _ _K1 STD .5MM 1.0MM
Dodge/Ram 2500, 3500 2019-2024 6.7L 24V ETM/HO Cummins L DU10157-_ _ _K1 STD .5MM 1.0MM 68447756AA
Dodge/Ram 2500, 3500 2019-2024 6.7L 24V ETL/ETN Cummins L 7228D-_ _ _K1 STD .5MM 1.0MM 68447759AA

* RCH = .010 Reduced Compression Height | += Availability to be announced

GENERAL MOTORS

*NEW expanded Duramax line, all 3 generations including the LML.

*NEW UEM exclusive - Duramax Rings PVD coated with Chrome Boron Nitrite (CrBN) 

THE BEST ring coating for long service life and HI OUTPUT applications.

Application Years Engine Family VIN Piston & Ring Kit Available Oversizes OE Part # Mahle fitment reference #
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 1992-2002 6.5L GM/Detroit Diesel L57/L65 Y,F 7229D-_ _ _K1 STD .5MM .75MM 1.0MM 12550059
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2001-2005 6.6L Duramax LB7/LLY 1,2 7208DKT STD .25MM .5MM .75MM 1.0MM 97303755-R, 97309756-L 224-3452(R), 224-3451(L)
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2001-2005 6.6L Duramax LB7/LLY .010” RCH 1,2 7218DKT STD .25MM .5MM .75MM 1.0MM 224-4086(R), 224-4085(L)
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2001-2005 6.6L Duramax LB7/LLY, Non-Strutted 1,2 7239D-_ _ _K1 STD .25MM .5MM .75MM 1.0MM
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2001-2005 6.6L Duramax LB7/LLY, Non-Strutted, Reduced 1,2 7249D-_ _ _K1 STD .25MM .5MM .75MM 1.0MM
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2006-2010 Comp. D, 2, 6 7210DKT STD .5MM .75MM 1.0MM 97374384-R, 97374385-L 224-3708(R), 224-3709(L)
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2006-2010 6.6L Duramax LBZ/LMM/LLY D, 2, 6 7220DKT STD .5MM 1.0MM 224-4087(R), 224-4088(L)
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2006-2010 6.6L Duramax LBZ/LMM/LLY .010” RCH D, 2, 6 7240D-_ _ _K1 STD .25MM .5MM .75MM 1.0MM
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2006-2010 6.6L Duramax LBZ/LMM/LLY, Non-Bushed D, 2, 6 7250D-_ _ _K1 STD .25MM .5MM .75MM 1.0MM
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2010-2017 6.6L Duramax LBZ/LMM/LLY, Non-Bushed, .010” 8,L 7225DKT STD .25MM .5MM .75MM 1.0MM 19256949-R, 19256948-L 224-3935
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2010-2017 RCH 8,L DU10173-_ _ _K1 STD .25MM .5MM .75MM 1.0MM / subs to 19301155
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2010-2017 6.6L Duramax LML/LGH 8,L 7235DKT STD .25MM .5MM .75MM 1.0MM 224-3985
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2010-2017 6.6L Duramax LML/LGH .005” RCH 8,L DU10161-_ _ _K1 STD .25MM .5MM .75MM 1.0MM
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2016-2024 6.6L Duramax LML/LGH .010” RCH 1 DU10096-_ _ _K1 TBD 24585028
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2017-2018 6.6L Duramax LML/LGH .015” RCH Y 7227DKT STD .5MM 1.0MM 12686800
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2017-2018 2.8L Duramax LWN Y 7237DKT STD .5MM 1.0MM
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2019-2023 6.6L Duramax L5P Y DU10170-_ _ _K1 TBD 12693468
General Motors Silverado/ Sierra/Express/ Savana 2500, 3500 2019-2023 6.6L Duramax L5P Reduced Comp. Height T DU10154-_ _ _K1 TBD 55510938

NAVISTAR INTERNATIONAL TERRASTAR / DURASTAR

Application Years Engine Family Piston & Ring Kit Available Oversizes OE Part # Mahle fitment reference #
Navistar International Terrastar, DuraStar 2008-2016 6.4L Navistar MaxxForce 7 7212DKT STD .25MM .5MM .75MM 1.0MM 1886491C1 224-3851
Navistar International Terrastar, DuraStar 2008-2016 6.4L Navistar MaxxForce 7 Reduced Comp. Height 7222DKT STD .25MM .5MM .75MM 1.0MM

SPRINTER | DODGE & MERCEDES

Application Years Engine Family Piston & Ring Kit Available Oversizes OE Part # Mahle fitment reference #
Dodge Sprinter 2500/3500 2007-2009 3.0L V6 EXM 7226DKT - 6801-3987AA(R), 6801-3986AB(L) 224-3952
Mercedes Sprinter 2010-2020 3.0L OM642.896/.898/.899 7226DKT - 642 030 38 17 (L), 642 030 40 17 ® 224-3952

*RCH = .010 Reduced Compression Height        † = Availability to be announced           KP = Kit supplied with premium PVD rings

For more detailed specifications see UEM Master Catalog or go to www.uempistons.com