CK-KW1-S : Kenworth Logo Square Knob

CK-KW1-S-5781 : Kenworth Logo Square Knob Metallic Red 481

CK-CAT-O-6090 : Caterpillar Logo Octagon Knob (190)

CK-CUM-S-6090 : Cummins Logo Square Knob (190)

CK-KWOC-O-7747: Kenworth Old Logo Octagon Knob Blue 647

CK-WS1-S : Western Star Square Logo Knob

CK-KWOC-S-7747: Kenworth Old Logo Square Knob Blue 647

CK-WS1-O : Western Star Logo Octagon Knob

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

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

CK-DET-O-6090 : Detroit Logo Octagon Knob (190)

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

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

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

CK-CMNDSL-S : Chrome Cummins Diesel Square Knob

CK-CMNDSL-O : Chrome Cummins Diesel Octagon Knob

UNITED PACIFIC - 23365 : "Trailer" Air Valve Knob - Stainless Plaque W/ Cursive Script

UNITED PACIFIC - 23179 : "Trailer" Long Air Valve Knob - Stainless Plaque w/ Cursive Script

CK-FL1-O-7747 : Freightliner Logo Octagon Knob Blue (647)

CK-FL1-O-6090 : Freightliner Logo Octagon Knob Black 190

CK-DET-S : Detroit Logo Square Knob

CK-FL1-S-7747 : Freightliner Logo Square Knob Blue (647)

UNITED PACIFIC - 23364 : "Tractor" Air Valve Knob - Stainless Plaque W/ Cursive Script

CK-FL1-O-6340 : Freightliner Logo Octagon Knob Red 440