Interstate Truck Centre Parts Store Categories: All A AC and Heating Air Bag Air Brake Air Compressor Air Cooler Air Dryer Air Line Fitting Air Line Air Tank Air to Air Alternator Antenna Axles B Batteries and Parts Bearing Set Belt Blower Brake System Bumper Bushing C Cables Camshaft Circuit Breaker Clamp Cleaner Clutch Condenser Connector Coolant and Parts D Dashboard Differential and Parts Dipp Stick Door and Parts Draglink Drain Plug E Elbow Electrical Exhaust System F Fairing Fan Clutch Fifth Wheel and Parts Filter Fire Extinguisher Flasher Flex Tubing Fluids Fog Lamp Freeon Cylinder Fuel Tank and Parts G Gasket Gladhand Governor Grease Grille H Harness Headlight Heating Hood and Parts Horn Hose Hub Cap and Parts Hydraulics I Installer J K King Pin L Levelling Valve License Plate Light and Lamp Lock M Mirrors Module Mud Flap and Parts N Nuts and Bolts O Oil P Plastic Seat Covers Plug Power Steering Q R Radiator Reducer Relay S Seal Seat Sensor Shock Absorber Signal Switch Slack Adjuster Socket Spindle Nut Starter Steering and Parts Switches T Tape Tensioner Thermostat and Parts Tie Rod End Torque Rod Trailer and Parts Transmission and Parts Turbo and Parts U U Joint V Valves W Waster Motors Wasters Water Pumps Wheel Studs Wheels and Tires Windows and Parts Wiper Blades and Parts X Y Yokes Z Misc. All / R / REDUCER; 5" ID X 4" OD X 6 $23.17 REDUCER; 5"IDX4"IDX8" (ALZ.) $20.77 37PTCSP-10-8 REDUCER $9.76 37PTCSP-6-4-REDUCER- 5128343 $9.76