CK-KWOC-S-6340: Kenworth Old Logo Square Knob Red 440

CK-WS1-O : Western Star Logo Octagon Knob

CK-KWOC-O-5778 : Kenworth Old Logo Octagon Knob Metallic Black 195

CK-CAT-O : Caterpillar Logo Octagon Knob

CK-MK1-S : Mack Logo Square Knob

CK-CUM-O : Cummins Logo Octagon Knob

CK-KW1-O-6340 : Kenworth Logo Octagon Knob Red 440

CK-KW1-S-6340 : Kenworth Logo Octagon Knob Red 440

CK-TRAILER-1 : Trailer Octagon Knob

CK-CMNDSL-BL-O : Black Cummins Diesel Octagon Knob

CK-KW-LS-6340 : Kenworth Logo Shape Knob - Red

CK-MK1-O : Mack Logo Octagon Knob

CK-DET-S-6090 : Detroit Logo Square Knob (190)

CK-KWOC-S-5778 : Kenworth Old Logo Square Knob Metallic Black 195

CK-KW-LS-6090 : Kenworth Logo Shape Knob - Black

CK-CMNDSL-BL-S : Black Cummins Diesel Square Knob

UNITED PACIFIC - 23229-1B : "Trailer" Glossy Air Valve Knob Sticker Only - Blue

UNITED PACIFIC - 23222-1B : "Tractor" Glossy Air Valve Knob Sticker Only - Blue

CK-CAT-S : Caterpillar Logo Square Knob

CK-IN2-O : Old Style Chrome International Logo Octagon Knob

CK-KW-LS-7747 : Kenworth Logo Shape Knob - Blue

CK-DET-O : Detroit Logo Octagon Knob

CK-CMNDSL-O : Chrome Cummins Diesel Octagon Knob

CK-CMNDSL-S : Chrome Cummins Diesel Square Knob