Adapter Plate Only for Kenwoth T680/T880 and Peterbilt 579/567.

Updated 3-2025:

- When Replacing Original Seat

- Works with Harrier, Air- Chief, Power Chief

- Buckle NOT Included (only use if belt buckles extender is already available)

- Adjustable Tethers NOT included (only use if customer already has tethers)

WARNING- The installer must insure that the seat is positioned and mounted properly so that the seat , safety belts , tether belts and tether mounting points meet FMVSS 207 & 210 when applicable. Failure to do so may cause serious injury or death.