Heavy Duty Vehicles

Emission Component

Air Pump Air Filter - Replace every 24,000 miles
Crankcase Inlet Air Filter - Clean every 24,000 miles
EGR Control Valve - Replace every 60,000 miles
EGR Tube & Passages - Clean and/or Replace every 60,000 miles
Engine Air Filter - Replace every 24,000 miles
Oxygen Sensor - Replace every 80,000 miles
PCV Valve - Replace every 60,000 miles
Vacuum Operated Emission System Components -
Inspect & Replace if Necessary every 60,000 miles