HEATING AND AIR CONDITIONING
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
- A/C Hoses & Lines
- Blower Motor & Resistor
- Blend Door Actuators
- Heater Core & Case Seals
- 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
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.
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GPD 6512232 NEW A/C COMPRESSOR FOR 2006-2009 DODGE RAM 2500/3500 WITH 5.9L/6.7L CUMMINS ENGINE
GLOBAL PARTS DISTRIBUTORS
$251.57Experience seamless climate control with the GPD 6512232 New A/C Compressor, expertly designed for 2006-2009 Dodge Ram 2500 and 3500 models equipped with the robust 5.9L and 6.7L Cummins engines, as well as 2008-2009 Dodge Ram 4500 and 5500 models...$251.57 -
GPD 6511617 NEW A/C COMPRESSOR FOR 94-05 DODGE RAM 2500/3500 WITH 5.9L CUMMINS ENGINE
GLOBAL PARTS DISTRIBUTORS
$243.01The GPD 6511617 New A/C Compressor is the perfect solution for revitalizing the air conditioning system of your 1994-2005 Dodge Ram 2500/3500 equipped with a powerful 5.9L Cummins engine. Designed for optimal performance, this compressor combines...$243.01 -
MOPAR 68004228AB HEATER CORE FOR 03-09 DODGE RAM 2500/3500
MOPAR
$283.51The Mopar 68004228AB Heater Core is a premium replacement part specifically designed for the 2003-2009 Dodge Ram 2500 and 3500 models. Engineered for optimal heating performance, this high-quality heater core ensures that your vehicle’s heating system...$283.51