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4309434NX, 4955422RX EGR Cooler EGR Valve Kit Cummins ISX Gen I 2002-2006



TamerX Part#: EGR783KIT

OEM: 4309434NX (EGR Cooler), 4955422RX (EGR Valve)

(2 installments with $0.00 additional charges)

TamerX Diesel Products LLC

Extreme Duty

Complete kit includes EGR Cooler, Installation Gaskets, and EGR Valve

For 2003-2006 Cummins ISX (First Generation)

This is a complete repair solution that includes an extreme-duty EGR Cooler with installation gaskets and a new EGR Valve. This is the strongest EGR Cooler available today. The TamerX EGR cooler lasts longer, works better, and is far more durable than the OEM design. This is not the cheapest cooler you can buy but absolutely the best. WHY! for one it is made in the USA. The design uses stainless steel tubing that is TIG welded by craftsman trained specifiaclly for this task. The tube design has proven itself to be the best solution. The TIG welded joint is much stronger than the brazed OEM Design that has been proven to fail.

 Kit Includes:

  • 1- Extreme-Duty EGR Cooler
  • 1- EGR Valve
  • 1- EGR Cooler Gasket Kit
  • 1- Flexible Hose

 OEM Part: 4956008NX, 4309434NX, 2881783NX, 4309434NX

TamerX Part #  EGR783KIT

 Warranty: 2 years 1,000,000 Miles



  • Make:     Cummins
  • Engine:  ISX Gen 1
  • Year:          2003-2006
  • Engine Designation: CM850



We generally ship via UPS ground. We can ship next day air for a very reasonable price. This usually runs $50 to $65 depending on your location


 Ship Weight: 35 LBS


TamerX Diesel Products LLC

88 Ard Circle

Hemingway, S.C. 29554

More Information
Part Number
Year Range
Cummins ISX
OEM Number
4309434NX, 4955422RX
Product Type
EGR Cooler
4309434NX, 4952490, 2881783, 4956008, 4955422RX
Year Range
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