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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MOPAR 05096255AA BLOWER MOTOR FOR 03-09 DODGE RAM 2500/3500
MOPAR
$320.31The Mopar 05096255AA Blower Motor delivers indispensable performance and reliability tailored for 2003-2009 Dodge Ram 2500 and 3500 models. This essential component is meticulously engineered to enhance your vehicle’s heating and air conditioning...$320.31 -
MOPAR 05073983AA HVAC BLEND DOOR ACTUATOR (DUAL ZONE) FOR 03-09 DODGE RAM 2500/3500
MOPAR
$378.06Enhance the comfort and efficiency of your Dodge Ram with the Mopar 05073983AA HVAC Blend Door Actuator, specifically crafted for the 2003-2009 Dodge Ram 2500 and 3500 models. This critical component seamlessly regulates air flow, ensuring the ideal...$378.06 -
DORMAN 599-212 HVAC CLIMATE CONTROL MODULE (MANUAL A/C) 2003-2005 DODGE RAM 2500/3500
DORMAN
$328.56Climate controls stopped working? Seamlessly restore operation by easily swapping the malfunctioning original module with this fully tested replacement unit. Direct replacement - this HVAC control module matches the appearance and function of the...$328.56 -
CPP A/C COMPRESSOR FOR 03-18 DODGE CUMMINS 5.9L/6.7L 24V
CPP DIESEL
$329.95Enhance the performance of your Dodge Cummins engine with the CPP Diesel Cummins A/C Compressor specifically designed for the 5.9L/6.7L 24V engines spanning from 2003 to 2018. Whether you are looking to upgrade or maintain your air systems, our CPP A/C...$329.95