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Mishimoto Mishimoto 03-07 Dodge Ram 5.9L Cummins Replacement Oil Cooler
Mishimoto Mishimoto 03-07 Dodge Ram 5.9L Cummins Replacement Oil Cooler
Mishimoto Mishimoto 03-07 Dodge Ram 5.9L Cummins Replacement Oil Cooler
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Mishimoto 03-07 Dodge Ram 5.9L Cummins Replacement Oil Cooler

Mishimoto
MISMMOC-RAM-03
840197723111
Oil Coolers
20+ Units In Stock - Ships Next Business Day
$ 330.00 $ 299.95
$ 299.95

SKU: MMOC-RAM-03 | UPC: 840197723111

Mishimoto Replacement Oil Cooler fits Dodge Ram 5.9L Cummins 2003-2007

Keep your 2003-2007 Dodge Ram 2500/3500 5.9L Cummins engine protected with the Mishimoto replacement oil cooler. This direct-fit unit replaces clogged or leaking stock coolers to maintain optimal oil temperatures and viscosity. Engineered as a stock-style upgrade with stacked plate design, it delivers reliable cooling for daily driving and heavy loads.

Key Features

  • Direct Fit: Perfect bolt-on for 2003-2007 Dodge Ram 2500/3500 5.9L Cummins, chassis codes DR DH D1 DC DM, no modifications needed
  • Stacked Plate Core: 14 rows, 6.98in length, 1.48in height, 2.96in thickness for effective heat transfer to coolant
  • Overall Dimensions: 11.41in length, 5.55in width, 1.86in height with 0.67in inlet/outlet fittings
  • Complete Kit: Includes all gaskets and seals for leak-free installation on your specific model
  • Mishimoto Lifetime Warranty: Covers defects for lifetime worry-free performance

Product Notes

  • Restores factory oil cooling to combat thinning and component wear in diesel engines
  • Meets OEM standards for reliable daily driving and towing
  • Affordable direct replacement for renewed engine protection

Installation Notes

  • Professional installation recommended.
  • Bolt-on design completes in 1-2 hours using factory mounting points
  • Compatible with OEM hardware, all gaskets provided for seamless fit

This Part Fits

Year Make Model Submodel
2003-2007 Dodge Ram 2500 5.9L Cummins (Laramie, SLT, ST, Sport, TRX4)
2003-2007 Dodge Ram 3500 5.9L Cummins (Laramie, SLT, ST, TRX4)

Why Choose Mishimoto?

  • Specialized engineering for Cummins diesel cooling systems
  • Direct-fit precision tested on 5.9L applications
  • Lifetime warranty backs every component

Frequently Asked Questions

  • Q: Will this fit my 2005 Dodge Ram 2500 5.9L Cummins?
    A: Yes, direct fit for all 2003-2007 Ram 2500/3500 models with 5.9L Cummins diesel engine, including Laramie SLT ST Sport TRX4 trims
  • Q: What core type and size is used?
    A: Stacked plate construction with 14 rows, core measures 6.98in long x 1.48in high x 2.96in thick, overall unit 11.41 x 5.55 x 1.86in
  • Q: What warranty coverage applies?
    A: Mishimoto Lifetime Warranty covers material and workmanship defects for the original purchaser, ensuring long-term reliability

Shipping & Handling

  • Method: UPS Ground or FedEx Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed 13in x 8in x 5in to protect stacked plate core
  • Weight: 7.05 lbs

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