2003-2004 Ram 2500/3500 5.9L Cummins Engine & Performance

FREE SHIPPING ON ALL
ORDERS OVER $70

PRICE MATCH
GUARANTEE

BUILD NOW, PAY LATER
FINANCING OPTIONS

30-DAY RETURN
SATISFACTION GUARANTEE

DIESEL TRUCK EXPERTS STANDING BY

Availability
Price
$0
$19,400
Rating
Vendor
Year
Make
Model
Loading products...
Filter
176 products
Sort by:
Best selling
Availability
Price
$0
$19,400
Rating
Vendor
Year
Make
Model
Fleece FPE-CLNTBYPS-CR-ORING-KIT Replacement O-ring Kit for Cummins Coolant Bypass Kits | 1994-2018 Dodge 5.9L/6.7L Cummins
Quick shop
Fleece FPE-CLNTBYPS-CR-ORING-KIT Replacement O-ring Kit for Cummins Coolant Bypass Kits | 1994-2018 Dodge 5.9L/6.7L Cummins
Fleece FPE-CLNTBYPS-CR-ORING-KIT Replacement O-ring Kit for Cummins Coolant Bypass Kits | 1994-2018 Dodge 5.9L/6.7L Cummins

Fleece FPE-CLNTBYPS-CR-ORING-KIT Replacement O-ring Kit for Cummins Coolant Bypass Kits | 1994-2018 Dodge 5.9L/6.7L Cummins

Price
$9.45
PPE 119020086 Coolant Drain Tube | 2001-2016 Silverado/Sierra 2500HD/3500HD 6.6L
Quick shop
PPE 119020086 Coolant Drain Tube | 2001-2016 Silverado/Sierra 2500HD/3500HD 6.6L

PPE 119020086 Coolant Drain Tube | 2001-2016 Silverado/Sierra 2500HD/3500HD 6.6L

Price
$26.99
ARP 247-5403 Main Stud Kit | 2004-2007 Dodge 5.9L Cummins
Quick shop
ARP 247-5403 Main Stud Kit | 2004-2007 Dodge 5.9L Cummins

ARP 247-5403 Main Stud Kit | 2004-2007 Dodge 5.9L Cummins

Sale price
$252.64
Regular price
$481.87
Mahle HS54557 1.28mm Thicker Head Gasket Kit | 2003-2007 Ram 5.9L Cummins 2500/3500
Quick shop
Mahle HS54557 1.28mm Thicker Head Gasket Kit | 2003-2007 Ram 5.9L Cummins 2500/3500

Mahle HS54557 1.28mm Thicker Head Gasket Kit | 2003-2007 Ram 5.9L Cummins 2500/3500

Sale price
$265.31
Regular price
$573.67
Fluidampr 920301 Internal Balance Steel Black Zinc Finish O.D. 9-1/4 In. Performance Damper | 2003-2009 Dodge 5.9L/6.7L Cummins
Quick shop
Fluidampr 920301 Internal Balance Steel Black Zinc Finish O.D. 9-1/4 In. Performance Damper | 2003-2009 Dodge 5.9L/6.7L Cummins

Fluidampr 920301 Internal Balance Steel Black Zinc Finish O.D. 9-1/4 In. Performance Damper | 2003-2009 Dodge 5.9L/6.7L Cummins

Price
$630.70
Smarty S-06POD Tuner | 2003-2007 Dodge 5.9L Cummins 2500/3500 MADS
Quick shop
Smarty S-06POD Tuner | 2003-2007 Dodge 5.9L Cummins 2500/3500 MADS

Smarty S-06POD Tuner | 2003-2007 Dodge 5.9L Cummins 2500/3500 MADS

Price
$685
BD Diesel 1300030 Accelerator Pedal Position Noise Isolator | 1994-2004 Ram 5.9L Cummins
Quick shop
BD Diesel 1300030 Accelerator Pedal Position Noise Isolator | 1994-2004 Ram 5.9L Cummins

BD Diesel 1300030 Accelerator Pedal Position Noise Isolator | 1994-2004 Ram 5.9L Cummins

Price
$35.95
Fleece FPE-CLNTBYPS-CUMMINS-0305 Coolant Bypass Kit | 2003-2005 Ram 5.9L Cummins
Quick shop
Fleece FPE-CLNTBYPS-CUMMINS-0305 Coolant Bypass Kit | 2003-2005 Ram 5.9L Cummins
Fleece FPE-CLNTBYPS-CUMMINS-0305 Coolant Bypass Kit | 2003-2005 Ram 5.9L Cummins

Fleece FPE-CLNTBYPS-CUMMINS-0305 Coolant Bypass Kit | 2003-2005 Ram 5.9L Cummins

Price
$359
PPE 119020092 2in OEM Coolant Hose Drain 1/4in Bung | Universal
Quick shop
PPE 119020092 2in OEM Coolant Hose Drain 1/4in Bung | Universal

PPE 119020092 2in OEM Coolant Hose Drain 1/4in Bung | Universal

Price
$26.99
Fleece FPE-CLNTBYPS-CUMMINS-MAN Cummins Coolant Bypass Kit | 2003-2007 Dodge 5.9L Cummins MT
Quick shop
Fleece FPE-CLNTBYPS-CUMMINS-MAN Cummins Coolant Bypass Kit | 2003-2007 Dodge 5.9L Cummins MT

Fleece FPE-CLNTBYPS-CUMMINS-MAN Cummins Coolant Bypass Kit | 2003-2007 Dodge 5.9L Cummins MT

Price
$359
Fleece FPE-CLNT-HS-BRKT Coolant Bypass Hose Brackets | 2003-2018 Dodge Ram 5.9L/6.7L Cummins
Quick shop
Fleece FPE-CLNT-HS-BRKT Coolant Bypass Hose Brackets | 2003-2018 Dodge Ram 5.9L/6.7L Cummins
Fleece FPE-CLNT-HS-BRKT Coolant Bypass Hose Brackets | 2003-2018 Dodge Ram 5.9L/6.7L Cummins

Fleece FPE-CLNT-HS-BRKT Coolant Bypass Hose Brackets | 2003-2018 Dodge Ram 5.9L/6.7L Cummins

Price
$69.99
Mahle HS54556 1.20MM Head Gasket Set | 2003-2007 Dodge 2500/3500 5.9L Cummins
Quick shop
Mahle HS54556 1.20MM Head Gasket Set | 2003-2007 Dodge 2500/3500 5.9L Cummins

Mahle HS54556 1.20MM Head Gasket Set | 2003-2007 Dodge 2500/3500 5.9L Cummins

Sale price
$214.26
Regular price
$567.55
Loading products...

Shop This Make By

If you're looking to turn your 5.9L Cummins into a beast that can handle anything thrown its way, check out our Engine & Performance upgrades!  When it comes to every aspect of performance, from cooling upgrades to free flow pipes and intakes, we've got your truck covered. From tuners & modules, oil pans, valve covers, and even high-performance crate engines, Alligator Performance is sure to have what you need in order to upgrade your Ram 5.9L Cummins. Whether you're looking to add more power, reliability or durability, we have you covered at Alligator Performance. Pair your new engine upgrades with our selection of top tier Turbo Upgrades! Ram Cummins Fitments: 2003, 2004 Ram 5.9L Cummins. Submodel Fitments: Tradesman, Laramie, Laramie Longhorn, Big Horn, Limited, Lone Star, Power Wagon. Some exceptions apply, please see individual product pages for specific fitments.

Can We Help You Find Something?

Give us a call: +1-208-719-7400

THE GARAGE

The Garage

Welcome to The Garage – your one-stop shop for all your car care and maintenance needs. From premium oils and filters to top-notch car care products, we have everything you need to keep your vehicle running smoothly and looking its best. Whether you're a DIY enthusiast or a professional mechanic, our carefully curated selection of high-quality products will help you take care of your ride like never before.