Fitment: 1984-1995 Toyota 4Runner 1981-1985 Toyota Celica 1979-1982 Toyota Corona 1983-1995 Toyota Pickup What is a fan clutch? A fan clutch is a thermostatic engine cooling fan that can freewheel at low temperatures when cooling is not needed, allowing the engine to warm up faster, relieving unnecessary load on the engine. As temperatures increase, the clutch engages so that the fan is driven by engine power and moves air to cool the engine. .
