Built by Iowa Customs, a patented design to add leg room and adapt Knoedler, National, Sears, Seats Inc, Bostrom seats without drilling holes in the floor in your Kenworth W9.  Mounting Hardware is included.

Details / Specifications

• Selection of widths available for aftermarket seat from Knoedler, National, Sears, Seats Inc and Bostrom
• Available Finishes: Billet Aluminum, Chrome, Or Powder Coat In Yellow, Post Office Blue, Gloss Black, Crystal White, Or Red Baron
• Mounting Hardware Included
• Adapter Will Provide Up To 7" Of Leg Room In 1" Increments From The Original Mounting Position
• No Need To Re-Drill Your Floor When Mounting A New Aftermarket Seat

PLEASE NOTE - If you have a Sears Atlas seat with a 4" riser, you may need the 8" Seat Base Adaptor.  Please check the dimensions before ordering.  The riser may have a different bolt pattern than the bottom of the seat.