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OE Quality
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Spectra 98031 HVAC Heater Core
Spectra 98031 HVAC Heater Core
The Spectra 98031 HVAC heater core is a direct-fit replacement for select Mazda applications, including Mazda 3 and Mazda 5 models. Built to meet or exceed original equipment performance, it supports consistent cabin heat and dependable coolant-to-air transfer.
Key Features
- OE-style HVAC heater core for heating system repair
- Engineered and manufactured with quality control for consistent fit and function
- Designed for select 2004-2007 Mazda 3 and 2006 Mazda 5 applications
- Part number 98031 for easy identification and ordering
- Cross-references Anchor 9693 and Dayco 71770 for the same application
Detailed Description
Spectra Premium heater cores are built with manufacturing technology and inspection processes aimed at matching original equipment performance in the vehicle’s HVAC system. This heater core is used in heating system service on select Mazda 3 and Mazda 5 models, including 2007 Mazda 3 without Auto A/C or without Cold Spec, 2004-2006 Mazda 3, and 2006 Mazda 5 through Dec/01/2005. If you are searching for a Mazda 3 heater core replacement or a Mazda 5 HVAC heater core, part number 98031 is the relevant OE-style reference.
What It Helps Fix
- Weak or uneven cabin heat
- Coolant odor inside the vehicle
- Fogging caused by heater core leakage
- Restricted heat transfer in the HVAC system
- Heater core failure from age or corrosion
Installation Notes and Tips
Verify vehicle configuration before ordering, especially for 2007 Mazda 3 models with Auto A/C or Cold Spec equipment. Confirm the year, model, and HVAC setup against the fitment list before installation. Proper cooling system service and leak checks should be completed after replacement.
Quality Assurance
Spectra Premium states that its HVAC heater cores are engineered to meet or exceed the performance of the original equipment they replace. Part number 98031 is built under manufacturing and quality control processes intended to support reliable HVAC service in the listed Mazda applications.
This part fits 11 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2007 | Mazda | 3 | S | 2.3L | L4 | N/A | w/o Auto A/C Or w/o Cold Spec |
| 2007 | Mazda | 3 | i | 2.0L | L4 | N/A | w/o Auto A/C Or w/o Cold Spec |
| 2006 | Mazda | 3 | S | 2.3L | L4 | N/A | |
| 2006 | Mazda | 3 | i | 2.0L | L4 | N/A | |
| 2006 | Mazda | 5 | Touring | 2.3L | L4 | N/A | To Dec/01/2005 |
| 2006 | Mazda | 5 | Sport | 2.3L | L4 | N/A | To Dec/01/2005 |
| 2005 | Mazda | 3 | SP23 | 2.3L | L4 | N/A | |
| 2005 | Mazda | 3 | S | 2.3L | L4 | N/A | |
| 2005 | Mazda | 3 | i | 2.0L | L4 | N/A | |
| 2004 | Mazda | 3 | S | 2.3L | L4 | N/A | |
| 2004 | Mazda | 3 | i | 2.0L | L4 | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.