MACK R688 ST HEAVY TRUCK

With Kysor A/C Unit

Models with Red Dot A/C or Red Dot Fan Switch Resistor

With Sleeper, 12 Volt, Single Speed, 2 Wire Motor with 5/16" Shaft, Vented Motor

Long Thread

10" X 9 7/8" X 1" Filter

9 3/4" X 9 3/4" X 1" Filter
Woven Fabric, Pleated

Must Identify By OEM Number

Parallel Flow, Non-Serviceable Design

Models with OE#210RD421M and 4379-RD457620

Serpentine Style, Non-Serviceable Design

4 Pin

All IH/Navistar and Mack Trucks with Actuator Label # B3570874A

With Red Dot A/C

With Red Dot A/C

All Models with Mini Relay

Sleeper Units with Bunk Thermostat, Rotary Switch, and Auxillary Circuit - Check OE and Description