Parts for your 2010 Toyota Fortuner-Heater core

2010 Toyota Fortuner heater core: purpose, care and when to replace

Heater core fitted? Yes. Technical documentation confirms the 2010 Toyota Fortuner (AN60 series, Hilux-based) uses a conventional hot-water heater core inside the HVAC box. This is shown in the Toyota Electronic Parts Catalog as the “Heater Radiator (Sub‑Assembly)” (typical p/n 87107‑0K090, superseding earlier numbers) and detailed in Toyota’s Repair Manual HVAC section for AN60, which covers heater radiator removal/installation and coolant flow. The New Car Features/AC system overview also describes an air‑mix damper regulating temperature, with coolant flowing through the heater core continuously on most variants.

• Technical sources: Toyota Electronic Parts Catalog (Fortuner AN60), Toyota Repair Manual HVAC (Heater Radiator), Toyota New Car Features – Air Conditioning/Heater System (AN60 platform).

What the heater core does: it’s a small radiator that takes engine coolant heat and transfers it to air blown into the cabin. On a 2010 Fortuner it sits deep behind the dash. Most trims don’t use a heater tap