Help warm the cab and clear the windshield with the Four Seasons heater core, part number 98713, an aluminum heater core that installs as a direct-fit replacement for the 1989-1995 Toyota Pickup and the 1993-1998 Toyota T100. Four Seasons brings more than 50 years of mobile A/C experience to engineering and testing its products.
The heater core works like a small radiator inside the HVAC housing. Hot engine coolant flows through its passages while the blower pushes air across it, carrying heat into the cabin and to the defroster. If a leaking or clogged original is the reason you need a 1989-1995 Toyota Pickup heater core, this unit replaces it.
- Aluminum heater core: Four Seasons lists this unit as an aluminum heater core.
- Heavy-duty construction: built heavy-duty for product durability.
- O.E. fit, form and function: engineered to match the original part's fit, form and function.
- Independently tested: checked by an independent party for proven quality and performance.
Signs the heater core may need replacing include weak or no cabin heat, a sweet coolant smell inside the vehicle, a greasy film fogging the windshield, damp floor carpet, or coolant loss with no visible outside leak. Low coolant, a stuck thermostat or a blend-door fault can cause similar symptoms, so confirm the cause before replacing. See the "Vehicles it fits" section for engine details.
Interchange: 1562657 · 9010269 · 554713 · 6603479 · 26850 · H79633 · 279633 · ZH440 · 398282 · 2703 · 809254 · 8231442 · 94713 · 2754321 · 1811711 · 250440 · 8282 · 90703 · 8710704010 · 8710789116 · HT398282 · HT398282C
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
1562657, 9010269, 554713, 6603479, 26850, H79633, 279633, ZH440, 98713, 398282, 2703, 809254, 8231442, 94713, 2754321, 1811711, 250440, 8282, 90703, 8710704010, 8710789116, HT398282, HT398282C
Frequently Asked Questions
What does a heater core do?
It works like a small radiator inside the HVAC housing. Hot engine coolant flows through it, and the blower pushes air across it to warm the cabin and feed the defroster.
Does this 1993-1998 Toyota T100 heater core also fit the 1989-1995 Toyota Pickup?
Yes. Part number 98713 is listed for the 1993-1998 Toyota T100 and the 1989-1995 Toyota Pickup. See the "Vehicles it fits" section for engine details.
What is the Four Seasons HVAC heater core made of?
It is an aluminum heater core with heavy-duty construction, engineered for O.E. fit, form and function and independently tested for quality and performance.
What is involved in a heater core replacement?
The job usually means draining coolant and reaching the core inside the HVAC housing. Follow your vehicle's service information for removal, installation, and refilling and bleeding the cooling system.
How can I tell if my heater core may be failing?
Watch for weak or no cabin heat, a sweet coolant smell inside, a greasy film fogging the windshield, or damp floor carpet. Rule out low coolant, the thermostat and blend-door faults first.
