Power Driven Diesel

Power Driven 48RE Transmission Cooler Line Replacement Kit for 03-07 Cummins

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  • Regular price $250.00
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Power Driven 48RE Transmission Cooler Line Replacement Kit — 2003–2007 Dodge Cummins

Factory 48RE transmission cooler lines are a known failure point — they corrode, crack, and leak, often without warning. When they go, you're looking at transmission fluid on the ground and a truck that won't tow. The Power Driven 48RE Cooler Line Kit replaces the entire factory steel line system with premium USA-made rubber-coated hose rated for 300°F and 300 psi — the same hose we've run 100,000+ miles on a built hot rod tow rig without a single issue.

Kit Includes

  • All necessary fittings and pre-cut cooler lines for a complete replacement
  • 1/2" ID USA-made hose rated for 300°F and 300 psi
  • Premium rubber-coated line clamps for a clean, secure install
  • Adapter for non-standard ports on aftermarket 89–02 heat exchangers
  • Maintains factory routing: transmission → heat exchanger → air-to-oil cooler → back to transmission

Why Not Just Use Auto Parts Store Hose?

Most commonly available transmission hose fails within a couple of years under the heat and pressure of a working 48RE. We've tested it — it falls short. This kit uses hose we've validated over 100,000 miles on a hot rod Cummins tow rig. It's the best hose we've ever found for this application, and we've made it available by the foot for custom builds too.

Fits

  • 2003–2007 Dodge Ram 2500 / 3500 5.9L 24v Cummins with 48RE transmission

*May not work for all builds due to other engine/vehicle modifications.

📄 Download Installation Instructions (PDF)