OE Quality
60-Day Returns

Spectra 98145 HVAC Heater Core
Reliable HVAC Heater Core for Chevrolet and GMC Trucks
The Spectra 98145 HVAC heater core is designed to restore efficient heating performance in select Chevrolet and GMC trucks. Engineered to meet OEM specifications, this heater core ensures proper cabin temperature control for your vehicle.
- Compatible with Chevrolet Silverado and GMC Sierra models including 1500, 2500 HD, and 3500 HD series
- Direct replacement part number 98145 for precise fit and function
- Constructed to maintain optimal heat transfer and durability
- Designed for HVAC systems requiring a heater core replacement
- Manufactured by Spectra, a trusted name in automotive HVAC components
Product Details and Compatibility
This Spectra HVAC heater core (part number 98145) is specifically engineered for use in Chevrolet Silverado 1500, 1500 LD, 2500, 2500 HD, 3500, and 3500 HD models, as well as GMC Sierra 1500, 1500 Limited, 2500 HD, and 3500 HD trucks. The heater core is a critical component of the vehicle’s heating, ventilation, and air conditioning system, responsible for transferring heat from the engine coolant to the cabin air. Its design ensures a proper seal and fit within the HVAC housing, maintaining system efficiency and preventing leaks.
Common Applications and Problem Resolution
- Restores heating function when cabin heat output is weak or inconsistent
- Replaces leaking or clogged heater cores causing coolant loss or odors
- Eliminates fogging or moisture buildup inside the vehicle due to HVAC issues
- Addresses overheating of the HVAC system caused by core blockages
- Improves overall climate control performance in Chevrolet Silverado and GMC Sierra trucks
Installation Notes and Tips
Installation of the Spectra 98145 heater core requires disassembly of the vehicle’s dashboard and HVAC housing. It is recommended to drain the cooling system before removal to prevent coolant spills. Careful handling is necessary to avoid damage to the delicate fins and tubes of the heater core. After installation, refill and bleed the cooling system to remove air pockets and verify proper operation of the heating system.
Quality Assurance and Warranty
Manufactured by Spectra, this heater core meets industry standards for durability and performance. While specific warranty details are not provided, Spectra products typically undergo rigorous quality control to ensure reliability. Using the correct part number 98145 guarantees compatibility and helps maintain the integrity of your vehicle’s HVAC system.
This part fits 86 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2019 | Chevrolet | Silverado 1500 LD | 5.3L | V8 | N/A | ||
| 2019 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | ||
| 2019 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | ||
| 2019 | GMC | Sierra 1500 Limited | 5.3L | V8 | N/A | ||
| 2019 | GMC | Sierra 2500 HD | 6.0L | V8 | N/A | ||
| 2019 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | ||
| 2018 | Chevrolet | Silverado 1500 | 6.2L | V8 | N/A | ||
| 2018 | Chevrolet | Silverado 1500 | 5.3L | V8 | GAS | N/A | |
| 2018 | Chevrolet | Silverado 1500 | 5.3L | V8 | FLEX | N/A | |
| 2018 | Chevrolet | Silverado 1500 | 5.3L | V8 | ELECTRIC/GAS | N/A | w/ Heavy Duty Heater (RPO Code C42); w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) |
| 2018 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | ||
| 2018 | Chevrolet | Silverado 2500 | 5.3L | V8 | N/A | ||
| 2018 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | N/A | ||
| 2018 | Chevrolet | Silverado 3500 | N/A | ||||
| 2018 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42) | |
| 2018 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | N/A | ||
| 2018 | GMC | Sierra | 6.2L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42), w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) | |
| 2018 | GMC | Sierra | 5.3L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42), w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) | |
| 2018 | GMC | Sierra 1500 | 6.2L | V8 | N/A | ||
| 2018 | GMC | Sierra 1500 | 5.3L | V8 | GAS | N/A | |
| 2018 | GMC | Sierra 1500 | 5.3L | V8 | FLEX | N/A | |
| 2018 | GMC | Sierra 1500 | 5.3L | V8 | ELECTRIC/GAS | N/A | w/ Heavy Duty Heater (RPO Code C42); w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) |
| 2018 | GMC | Sierra 1500 | 4.3L | V6 | N/A | ||
| 2018 | GMC | Sierra 2500 HD | 6.0L | V8 | N/A | ||
| 2018 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42) | |
| 2018 | GMC | Sierra 3500 HD | 6.0L | V8 | N/A | ||
| 2017 | Chevrolet | Silverado 1500 | 6.2L | V8 | N/A | ||
| 2017 | Chevrolet | Silverado 1500 | 5.3L | V8 | GAS | N/A | |
| 2017 | Chevrolet | Silverado 1500 | 5.3L | V8 | FLEX | N/A | |
| 2017 | Chevrolet | Silverado 1500 | 5.3L | V8 | ELECTRIC/GAS | N/A | w/ Heavy Duty Heater (RPO Code C42); w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) |
| 2017 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | ||
| 2017 | Chevrolet | Silverado 2500 | 4.3L | V6 | N/A | ||
| 2017 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | N/A | ||
| 2017 | Chevrolet | Silverado 3500 | N/A | ||||
| 2017 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42) | |
| 2017 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | N/A | ||
| 2017 | GMC | Sierra | 6.2L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42), w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) | |
| 2017 | GMC | Sierra | 5.3L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42), w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) | |
| 2017 | GMC | Sierra 1500 | 6.2L | V8 | N/A | ||
| 2017 | GMC | Sierra 1500 | 5.3L | V8 | GAS | N/A | |
| 2017 | GMC | Sierra 1500 | 5.3L | V8 | FLEX | N/A | |
| 2017 | GMC | Sierra 1500 | 5.3L | V8 | ELECTRIC/GAS | N/A | w/ Heavy Duty Heater (RPO Code C42); w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) |
| 2017 | GMC | Sierra 1500 | 4.3L | V6 | N/A | ||
| 2017 | GMC | Sierra 2500 HD | 6.0L | V8 | N/A | ||
| 2017 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42) | |
| 2017 | GMC | Sierra 3500 HD | 6.0L | V8 | N/A | ||
| 2016 | Chevrolet | Silverado 1500 | 6.2L | V8 | N/A | ||
| 2016 | Chevrolet | Silverado 1500 | 5.3L | V8 | GAS | N/A | w/ Heavy Duty Heater (RPO Code C42); w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) |
| 2016 | Chevrolet | Silverado 1500 | 5.3L | V8 | FLEX | N/A | w/ Heavy Duty Heater (RPO Code C42); w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) |
| 2016 | Chevrolet | Silverado 1500 | 5.3L | V8 | ELECTRIC/GAS | N/A | w/ Heavy Duty Heater (RPO Code C42); w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) |
| 2016 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | ||
| 2016 | Chevrolet | Silverado 2500 | 5.3L | V8 | N/A | ||
| 2016 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | N/A | ||
| 2016 | Chevrolet | Silverado 3500 | N/A | ||||
| 2016 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42) | |
| 2016 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | N/A | ||
| 2016 | GMC | Sierra | 6.2L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42), w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) | |
| 2016 | GMC | Sierra | 5.3L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42), w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) | |
| 2016 | GMC | Sierra 1500 | 6.2L | V8 | N/A | ||
| 2016 | GMC | Sierra 1500 | 5.3L | V8 | GAS | N/A | w/ Heavy Duty Heater (RPO Code C42); w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) |
| 2016 | GMC | Sierra 1500 | 5.3L | V8 | FLEX | N/A | w/ Heavy Duty Heater (RPO Code C42); w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) |
| 2016 | GMC | Sierra 1500 | 5.3L | V8 | ELECTRIC/GAS | N/A | w/ Heavy Duty Heater (RPO Code C42); w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) |
| 2016 | GMC | Sierra 1500 | 4.3L | V6 | N/A | ||
| 2016 | GMC | Sierra 2500 HD | 6.0L | V8 | N/A | ||
| 2016 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42) | |
| 2016 | GMC | Sierra 3500 HD | 6.0L | V8 | N/A | ||
| 2015 | Chevrolet | Silverado 1500 | 6.2L | V8 | N/A | ||
| 2015 | Chevrolet | Silverado 1500 | 5.3L | V8 | GAS | N/A | |
| 2015 | Chevrolet | Silverado 1500 | 5.3L | V8 | FLEX | N/A | |
| 2015 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | ||
| 2015 | Chevrolet | Silverado 2500 | 5.3L | V8 | N/A | ||
| 2015 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | N/A | ||
| 2015 | Chevrolet | Silverado 3500 | N/A | ||||
| 2015 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42) | |
| 2015 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | N/A | ||
| 2015 | GMC | Sierra | 6.2L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42), w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) | |
| 2015 | GMC | Sierra | 5.3L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42), w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67) | |
| 2015 | GMC | Sierra 1500 | 6.2L | V8 | N/A | ||
| 2015 | GMC | Sierra 1500 | 5.3L | V8 | GAS | N/A | |
| 2015 | GMC | Sierra 1500 | 5.3L | V8 | FLEX | N/A | |
| 2015 | GMC | Sierra 1500 | 4.3L | V6 | N/A | ||
| 2015 | GMC | Sierra 2500 HD | 6.0L | V8 | N/A | ||
| 2015 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | w/ Heavy Duty Heater (RPO Code C42) | |
| 2015 | GMC | Sierra 3500 HD | 6.0L | V8 | N/A | ||
| 2014 | Chevrolet | Silverado 1500 | N/A | w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67); w/ Dual Zone HVAC System, Automatic Temperature Control and Auxiliary Temperature Control (RPO code CJ2) | |||
| 2014 | GMC | Sierra 1500 | N/A | w/ Single Zone HVAC System and Front Electronic Controls (RPO Code C67); w/ Dual Zone HVAC System, Automatic Temperature Control and Auxiliary Temperature Control (RPO code CJ2) |
* 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.