The Spicer TTC Air Valve Shift Knob with Leather, part number 39Q38-47-1X or 39Q38471X, is a direct-replacement shift knob designed for air valve shift controls in heavy-duty truck transmissions. The leather-wrapped grip provides a durable, tactile interface for the driver operating an air-shifted transmission. Spicer TTC manufactures transmission components to OEM specifications, making this a genuine replacement part for the appropriate application. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your specific transmission and truck configuration before ordering.
Features
Genuine Spicer TTC replacement shift knob
Air valve shift control application
Leather-wrapped grip
Direct OEM-specification replacement
Part number 39Q38-47-1X or 39Q38471X
