HEATING & AIR CONDITIONING — 2003–2007 DODGE RAM 5.9L CUMMINS

Keep your 03–07 Ram 2500/3500 comfortable year-round with proven HVAC parts. CPP Diesel stocks A/C compressors, accumulators, hoses & seals, blower motors & resistors, blend door actuators, heater cores, and case seal kits—all curated for 5.9L Cummins trucks.

Browse the full 03–07 HEATING & A/C category

Shop by Component

• A/C Compressors
  • GPD 6511617 (94–05) — fits early 3rd-gen split.
  • GPD 6512232 (06–09) — covers 06–07 Cummins.
• Accumulator / Receiver-Drier
  • GPD 1411737 Accumulator (03–07)
• A/C Hoses & Lines
  • GPD 4811693 Liquid Hose (03–09 std cab)
• Blower Motor & Resistor
  • Mopar 05096255AA Blower Motor (03–09)
  • CPP-BMR-0309 Blower Motor Resistor (03–09)
  • Dorman 645-701 Resistor Pigtail (94–09)
• Blend Door Actuators
  • Mopar 04885206AB Single-Zone (03–09)
  • Mopar 05073983AA Dual-Zone (03–09)
• Heater Core & Case Seals
  • Mopar 68004228AB Heater Core (03–09)
  • Mopar 68004231AB HVAC Case Seal Kit (03–09)
• Seals & O-Rings
  • GPD 1321311 Rapid Seal O-Ring Kit (05–12) — covers late 03–07 setups.

Tech Notes & Fitment

• Year split: 2003–2005 vs 2006–2007 compressors and some lines differ—match your build year to the listing.
• Best practice: Replace the accumulator and O-rings whenever the system is opened; evacuate and recharge to spec.
• Electrical: If fan speeds are intermittent, check the blower resistor and pigtail together.

Related Categories

• COOLING SYSTEM
• HEAT CONTROL PRODUCTS

Frequently Asked Questions

Do I need to replace the accumulator when I change the compressor?

Yes—moisture and debris can shorten compressor life. Install a new accumulator and fresh O-rings, then vacuum and recharge.

My fan only works on high—what should I check?

That symptom often points to a failed blower motor resistor or a melted pigtail. Replace both for a lasting fix.

Single-zone vs. dual-zone—how do I know which actuator I need?

Check your truck’s HVAC controls. Single-zone uses 04885206AB; dual-zone uses 05073983AA. Match the part to your system.