HEATER-MIXING FLAP (JLG JL1001184278)

A damaged mixing flap can disrupt the temperature blend inside a heating system. During operation, this flap directs airflow across the heater core to regulate cabin warmth. The part is an aftermarket replacement referencing JLG catalog number JL1001184278. Its plain mechanical function is to pivot and modulate the mix of hot and cold air. A common failure consequence is that a stuck or broken flap may cause the heater to blow only hot or only cold air. Keeping this flap in sound condition helps maintain consistent temperature control. Verify the serial number or application, then call (562) 693-7748.

Part number variants: JL1001184278, jl1001184278