Seat Mount 1-1/4in C- Plates

The Seat Mount 1-1/4in C-Plates from KIRKEY (MPN 99215) are precision-engineered seat brackets designed for racers and enthusiasts who demand reliable, adjustable seating solutions in high-performance vehicles. These A-frame mounts provide the structural foundation necessary for securely installing 89 Series Kirkey Racing Seats, whether in drag racing, circle track, street rod, or professional motorsports applications. Built to withstand the lateral and longitudinal forces of aggressive driving, these C-plates are an essential component for any racing seat installation.

Manufactured from heavy-duty steel plate stock at 3/16 inch thickness, the Seat Mount 1-1/4in C-Plates feature a robust A-frame geometry that distributes seating loads evenly across vehicle frame rails and floor pans. The 1-1/4 inch mount opening accommodates standard seat attachment hardware, while the rigid construction resists flexing and vibration under sustained cornering and braking stress. At only 0.42 lbs per plate, the design balances structural integrity with weight consciousness—critical in competitive racing where every pound affects acceleration and handling. The compact footprint (4 x 0.75 x 4.55 inches) allows installation in tight chassis configurations without compromising accessibility.

Racers standardly purchase these seats as a matched pair to support both driver and passenger sides, ensuring balanced seat geometry and symmetrical load distribution throughout the vehicle frame. Professional fabricators and restoration shops rely on KIRKEY's engineering for proven fitment with 89 Series racing seats—the industry standard for tube-frame cars, bracket racers, and vintage hot rods. Installation requires welding or bolting to existing frame or floor pan structure; consultation with chassis design specifications is recommended to ensure proper mounting angles and clearance. Shop TacticalSurplusUSA for genuine KIRKEY racing hardware backed by decades of motorsports reliability.