Spectra Premium 94483 Vehicle HVAC Heater Core Replacement Compatible With Chevrolet
- Chevrolet and GMC full-size trucks, Silverado, Suburban, Tahoe, Yukon, Kodiak, Topkick
- C1500 to C7500 and K1500, K2500 chassis listed
- Exact fit in the original equipment heater casing
- 100 percent leak tested
Last refreshed Oct 3, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A vehicle heater core made to drop into the factory heater casing of a long list of GM trucks and SUVs. Match your exact chassis against the listed models before ordering.
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ASIN: B004LGRHWSModel: 94483Category: Heater Cores
Overview
Inside the dash of a full-size Chevrolet or GMC truck, the heater core is the small radiator that warms cabin air from engine coolant. This Spectra Premium replacement is built to the shape of the original casing and is leak tested before shipping.
It is a straight replacement for a leaking or clogged core when the cabin runs cold or coolant smells sweet. Fitment spans many models, which is useful, but the title list is long and a wrong chassis will not seat in the casing.
Who it's for
Owners and shops fixing no-heat or coolant leaks on the listed Chevrolet and GMC trucks can use it as a like for like part. Anyone with an unlisted chassis, or a buyer thinking of an electric heater, should look elsewhere.
Pros and cons
- Made for the original heater casing
- Every unit leak tested
- Covers many truck and SUV models
- Sold under a single part number
- Core dimensions not given
- Long model list needs checking
- Coolant hoses not mentioned
Performance notes
Hot engine coolant flows through thin tubes while the blower pushes cabin air across them, so a core with clean, sealed passages gives steady heat. A leak shows as fogged glass, a sweet smell or a wet passenger floor, and the leak test is meant to catch that before installation.
Specifications
| Brand | Spectra Premium |
|---|---|
| Model | 94483 |
| Number of items | 1 |
| Color | Silver |
| Part number | 94483 |
Frequently asked questions
Is the Spectra Premium 94483 a space heater?
No. It is a heater core for a vehicle HVAC system, replacing the part inside the factory heater casing. It does not plug in or heat a room.
Will the 94483 fit every Chevrolet truck?
Only the models named in the title are listed. Check your model and chassis code against that list before buying.
Does the 94483 need a special casing?
The seller says it is designed for exact fit in the vehicle's original equipment heater casing, so the factory casing is reused.