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One Stop Solutions 98058 HVAC Heater Core - Front
| Brand | One Stop Solutions 98058 |
|---|---|
| Position | Front |
| Fits | Chevrolet, GMC, Saab, Buick, Isuzu, and Oldsmobile · 54 vehicles |
OE direct replacement. Matches original form and function for straightforward installation.
Premium aluminum construction. Built with cadmium-plated tubes to help resist premature failure.
Pressure tested. Each heater core is individually tested before it leaves production.
Cross-references Dorman - HELP 93058 and 399154 for the same application. See all 2.
OE-Style Heater Core Replacement
Restore cabin heat with this HVAC heater core from One Stop Solutions. Part number 98058 is built for direct replacement use in select Chevrolet Trailblazer, GMC Envoy, Saab 9-7x, Buick Rainier, Chevrolet Trailblazer EXT, Isuzu Ascender, and Oldsmobile Bravada applications.
Designed to match original equipment form and function, this heater core uses premium aluminum construction and is individually pressure tested for leak resistance. Part number 98058 also includes the foam and accessories needed for a proper OE-style installation.
Key Features
- Premium aluminum HVAC heater core construction
- Direct replacement for copper-designed heater core applications
- Cadmium-plated tubes inside and out to help resist premature failure
- Individually pressure tested before shipment
- Includes necessary foam and accessories
- Compatible with front HVAC heater core locations
Detailed Description
One Stop Solutions 98058 is an HVAC heater core engineered for OE-style fit and function in vehicles such as the Chevrolet Trailblazer and GMC Envoy. It is also listed for the Saab 9-7x, Buick Rainier, Chevrolet Trailblazer EXT, Isuzu Ascender, and Oldsmobile Bravada. This heater core is made from aluminum and is intended as a direct replacement for original copper-style units, with cadmium-plated tubes to help improve durability in the heating system.
This part cross-references Dorman - HELP 93058 for the same application.
What It Helps Fix
- Weak or no cabin heat
- Coolant odor inside the vehicle
- Fogging or film on interior glass from heater core leakage
- Coolant loss from a leaking HVAC heater core
- Uneven heater performance in the front HVAC system
Installation Notes
Fits 2003-2009 Chevrolet Trailblazer, front. Fits 2003-2009 GMC Envoy, front. Fits 2005-2009 Saab 9-7x, N/A. Fits 2004-2006 Buick Rainier, front. Fits 2003-2006 Chevrolet Trailblazer EXT, front. Fits 2003-2004 Isuzu Ascender, front. Fits 2003-2004 Oldsmobile Bravada, front.
Verify the vehicle’s HVAC layout and compare the original heater core before installation. Flush the cooling system and inspect hoses, seals, and related components for contamination or wear before reassembly.
Quality Assurance
Each heater core is pressure tested individually to confirm leak resistance before use. One Stop Solutions builds this unit to OE form and function standards for direct replacement service.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2009 | Chevrolet | Trailblazer | 6.0L | V8 | Front | — |
| 2009 | Chevrolet | Trailblazer | 4.2L | L6 | Front | — |
| 2009 | GMC | Envoy | 4.2L | L6 | Front | — |
| 2009 | GMC | Envoy | 5.3L | V8 | Front | — |
| 2009 | Saab | 9-7x | 6.0L | V8 | N/A | — |
| 2009 | Saab | 9-7x | 4.2L | L6 | N/A | — |
| 2009 | Saab | 9-7x | 5.3L | V8 | N/A | — |
| 2008 | Chevrolet | Trailblazer | 6.0L | V8 | Front | — |
| 2008 | Chevrolet | Trailblazer | 4.2L | L6 | Front | — |
| 2008 | Chevrolet | Trailblazer | 5.3L | V8 | Front | — |
| 2008 | GMC | Envoy | 4.2L | L6 | Front | — |
| 2008 | GMC | Envoy | 5.3L | V8 | Front | — |
| 2008 | Saab | 9-7x | 6.0L | V8 | N/A | — |
| 2008 | Saab | 9-7x | 4.2L | L6 | N/A | — |
| 2008 | Saab | 9-7x | 5.3L | V8 | N/A | — |
| 2007 | Chevrolet | Trailblazer | 6.0L | V8 | Front | — |
| 2007 | Chevrolet | Trailblazer | 4.2L | L6 | Front | — |
| 2007 | Chevrolet | Trailblazer | 5.3L | V8 | Front | — |
| 2007 | GMC | Envoy | 4.2L | L6 | Front | — |
| 2007 | GMC | Envoy | 5.3L | V8 | Front | — |
| 2007 | Saab | 9-7x | 4.2L | L6 | N/A | — |
| 2007 | Saab | 9-7x | 5.3L | V8 | N/A | — |
| 2006 | Buick | Rainier | 4.2L | L6 | Front | — |
| 2006 | Buick | Rainier | 5.3L | V8 | Front | — |
| 2006 | Chevrolet | Trailblazer | 6.0L | V8 | Front | — |
| 2006 | Chevrolet | Trailblazer | 4.2L | L6 | Front | — |
| 2006 | Chevrolet | Trailblazer | 5.3L | V8 | Front | — |
| 2006 | Chevrolet | Trailblazer EXT | 4.2L | L6 | Front | — |
| 2006 | GMC | Envoy | 4.2L | L6 | Front | — |
| 2006 | GMC | Envoy | 5.3L | V8 | Front | — |
| 2006 | Saab | 9-7x | 4.2L | L6 | N/A | — |
| 2006 | Saab | 9-7x | 5.3L | V8 | N/A | — |
| 2005 | Buick | Rainier | 4.2L | L6 | Front | — |
| 2005 | Buick | Rainier | 5.3L | V8 | Front | — |
| 2005 | Chevrolet | Trailblazer | 4.2L | L6 | Front | — |
| 2005 | Chevrolet | Trailblazer EXT | 4.2L | L6 | Front | — |
| 2005 | GMC | Envoy | 4.2L | L6 | Front | — |
| 2005 | GMC | Envoy | 5.3L | V8 | Front | — |
| 2005 | Saab | 9-7x | 4.2L | L6 | N/A | — |
| 2005 | Saab | 9-7x | 5.3L | V8 | N/A | — |
| 2004 | Buick | Rainier | 4.2L | L6 | Front | — |
| 2004 | Buick | Rainier | 5.3L | V8 | Front | — |
| 2004 | Chevrolet | Trailblazer | 4.2L | L6 | Front | — |
| 2004 | Chevrolet | Trailblazer EXT | 4.2L | L6 | Front | — |
| 2004 | GMC | Envoy | 4.2L | L6 | Front | — |
| 2004 | Isuzu | Ascender | 4.2L | L6 | Front | — |
| 2004 | Isuzu | Ascender | 5.3L | V8 | Front | — |
| 2004 | Oldsmobile | Bravada | 4.2L | L6 | Front | — |
| 2003 | Chevrolet | Trailblazer | 4.2L | L6 | Front | — |
| 2003 | Chevrolet | Trailblazer EXT | 4.2L | L6 | Front | — |
| 2003 | GMC | Envoy | 4.2L | L6 | Front | — |
| 2003 | Isuzu | Ascender | 4.2L | L6 | Front | — |
| 2003 | Isuzu | Ascender | 5.3L | V8 | Front | — |
| 2003 | Oldsmobile | Bravada | 4.2L | L6 | Front | — |
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