Ivory Kenworth truck shifter knob. 2-1/8" diameter. Built-in 1/2-13 brass threaded insert. Made of ultra durable Partek resin. Thissemi truck interior accessory is made in the USA.

Matching Tractor/Trailer Air Valve Knobs, item 319008 sold separetely.

See more link for Installation Instructions.
Installation requires shifter adaptor. Choose 13/18 Speed, item 238690 or 9/10 Speed, item 238691, sold separately.