Spectra Premium 99331 Vehicle HVAC Heater Core Replacement Compatible With Dodge Ram 1500
- Aluminum core and tanks, fully brazed design
- Dodge Ram 1500 to 5500, model years 2002 to 2010, engine specific
- 1 year warranty
- 1.8 pounds, heater core only
Last refreshed Oct 3, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A direct-fit aluminum heater core for the Dodge Ram trucks on its list, brazed and leak tested at the factory. Fit is engine specific, so check the year and engine before ordering.
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ASIN: B001DBTUYWModel: 99331Category: Heater Cores
Overview
A fully brazed aluminum core carries coolant through the vehicle's heater casing so the HVAC system can warm the cabin. This Spectra unit is made to match the original casing on the listed Ram trucks and is leak tested before it ships.
Choose it when the heater has stopped working and you want a replacement shaped for the original casing. The fit list is split by engine and year, so a mismatch is the easiest way to go wrong. Gaskets and hose fittings are not part of the listing.
Who it's for
A Dodge Ram pickup in the covered model years that needs its heater core replaced. Owners of other makes, or Rams with an engine outside the list, should confirm fit with the Amazon Confirmed Fit tool first.
Pros and cons
- Fully brazed aluminum construction
- Leak tested at the factory
- Shaped for the OE heater casing
- Covers several Ram engine options
- Fit depends on exact engine and year
- Gaskets and fittings not listed
- Dodge Ram trucks only
Performance notes
Brazed aluminum joins the tubes and tanks into one sealed unit. Heat output still depends on coolant flow, so flushing the cooling system during the swap matters.
Specifications
| Brand | Spectra Premium |
|---|---|
| Model | 99331 |
| Dimensions & fit | |
| Weight | 1.8 pounds |
| Core height | 6-1/4 inches |
| Core width | 7-3/8 inches |
| Inlet diameter | 5/8 inch |
| Outlet diameter | 5/8 inch |
| Construction & materials | |
| Core material | Aluminum |
| Tank material | Aluminum |
| Compatibility & installation | |
| Compatible vehicles | 2002-2010 Dodge Ram 1500, 2500, 3500, 4000, 5500 |
| Warranty & support | |
| Warranty | 1 Year |
| Other details | |
| Core thickness | 1 inch |
Frequently asked questions
What size is the Spectra 99331 heater core?
The core is 6-1/4 inches high, 7-3/8 inches wide and 1 inch thick, with a 5/8 inch inlet and a 5/8 inch outlet.
Which Dodge Ram engines does the 99331 cover?
The list includes V6, V8, V10 and L6 engines across the 1500, 2500, 3500, 4000 and 5500 for the years shown in the specs. Match your exact engine and year, because not every year pairs with every engine.
Is the Spectra 99331 a complete heater assembly?
No. The listing names the heater core only, so hoses, clamps and gaskets are not part of what is described.