Seat Brackets & Side Mounts

Vehicle-specific seat brackets, side mounts and bases from Planted, Sparco, OMP, Sabelt and Brey-Krause — hundreds of chassis, driver and passenger side.

You will also need

the base bolts to your car — then match it to your seat

About Seat Brackets & Side Mounts

Every racing seat needs the right bracket. A seat bracket (also called a seat base, side mount or seat adapter) bolts your aftermarket seat to your car's factory floor mounting points — so fitment is vehicle-specific, not one-size-fits-all.

We stock brackets from Planted, Sparco, OMP, Sabelt and Brey-Krause covering hundreds of chassis — BMW from the E21 and E30 to the F8x M3 and M4, and the Porsche 911 from 1966 through the 991, plus Boxster and Cayman. Planted build a base for almost every car and can make one to order in about seven days if yours is not in stock. Most are sold per side, so check whether you need driver, passenger or both.

Choosing the right bracket

  • Confirm your exact chassis and year range — a 1992-1999 E36 bracket will not fit an E46.
  • Check side mount vs. bottom mount — side mounts bolt to the seat's side flanges; bottom mounts bolt underneath.
  • Decide on a slider — brackets can be fixed or slider-compatible if you need fore/aft adjustment.
  • Mind seat height — low-mount options gain headroom for helmet clearance on track.

Shopping for the seat itself? See our Racing Seats collection.