A-Premium HVAC Heater Core for Dodge Ram 1500/2500/3500 (2002–2009) — Aluminium Direct-Fit, 5/8" Inlets

A-Premium HVAC Heater Core is a direct-fit aluminum replacement for Dodge Ram trucks that restores cabin heat and reliable coolant flow with high-density fins and leak-resistant construction.

If your Dodge Ram 1500/2500/3500 (2002–2009) or larger Ram 4000/4500/5500 (2005–2010) is blowing cold air or showing signs of coolant leaks from the dash, the heater core is a common cause. This A-Premium unit is engineered to match OE form, fit and function using corrosion-resistant aluminum, multi-louvered fins for efficient heat transfer, and 5/8" inlet and outlet tubing for straightforward hose connections. The part comes with multiple reference numbers to help confirm fitment and includes a one-year unlimited-mileage guarantee for added confidence.

Will this heater core fit my Dodge Ram?

Compatibility covers many model years and weight classes of the Ram lineup. Confirm your exact model year and engine options against listed fitment and the part reference numbers before ordering to ensure a direct replacement.

• Compatible models: Ram 1500 (2002–2008), Ram 2500/3500 (2002–2009)
• Also fits Ram 4000 (2005–2008), Ram 4500/5500 (2008–2010)
• Reference numbers: 99331, HT399331C, 5073971AA, 68004228AA, 68004228AB
• Use vehicle lookup tools and verify special notes before purchase

How does the A-Premium core improve heating performance?

The unit’s high-density multi-louvered fins increase surface area and promote faster heat dissipation into the cabin. Aluminum construction resists rust, helps maintain a seal under pressure, and supports consistent coolant flow for steady warmth.

• Multi-louvered fins maximize heat transfer from coolant to air
• Aluminum body reduces corrosion compared with older copper/brass types
• Precise inlet/outlet dimensions (5/8") match common factory hoses
• Thin-profile design (12.40"×2.56"×1") fits OEM mounting spaces

What should I know about installation and compatibility details?

Installation typically requires dashboard access and basic automotive tools; depending on truck configuration, professional installation may save time. Double-check inlet/outlet diameters and mounting clearance, and flush the cooling system to prevent contamination of the new core.

• Physical size: height 12.40 in, width 2.56 in, thickness 1 in
• Inlet/outlet: both 5/8 inch diameter for hose compatibility
• Material: durable aluminum for sealing and leak resistance
• Recommended: cooling system flush before installation

What warranty and support does A-Premium offer?

A-Premium backs this heater core with a one-year unlimited-mileage guarantee to protect against manufacturing defects. The policy supports replacement or refund if the part fails under normal use within the warranty period.

• One-year unlimited-mileage guarantee
• Quality control focused on sealing and fin density
• Wide range of automotive parts available from the brand
• Contact A-Premium for warranty claims and fitment questions

Who is this for: This A-Premium HVAC heater core is intended for Dodge Ram owners and mechanics seeking a direct-fit, corrosion-resistant replacement that restores cabin heating. It’s a practical choice if your vehicle matches the listed model years and reference numbers, you want improved heat transfer from a high-density fin design, and you prefer the reassurance of a one-year guarantee. If you’re uncomfortable with dash removal or coolant system work, consider professional installation to ensure an efficient, leak-free repair.