Seat Back Mount Aluminum

The BUTLERBUILT Seat Back Mount Aluminum (model BBP-2131) is a weld-on rear seat mount engineered for custom and performance vehicle builds where structural integrity and clean installation are priorities. Constructed from aluminum in natural finish, this mount provides a secure foundation for attaching seats to roll cages, frames, or welded tubular structures in race cars, hot rods, custom trucks, and off-road platforms.

The weld-on design eliminates reliance on fasteners alone, distributing seat load directly through the welded joint for maximum rigidity and elimination of creep or movement under acceleration, braking, and cornering forces. Aluminum construction keeps unsprung weight to a minimum—critical in racing and performance applications where lighter hardware reduces fuel consumption and improves handling dynamics. At 1.81 lbs and measuring 9.2 x 1.55 x 15.95 inches, this mount is compact enough to fit diverse frame geometries while maintaining robust cross-sectional area. The natural aluminum finish resists corrosion better than bare steel and can be painted or powder-coated to match custom fabrication requirements.

This product is suited for fabricators, race teams, and enthusiasts building custom seating systems where OEM mounting points are absent or unsuitable. Applications include vintage vehicle restorations, custom off-road rigs, competition vehicles, and automotive restoration projects requiring reliable seat attachment solutions. BUTLERBUILT seat components are widely specified in the racing and custom fabrication community for their engineering-driven approach to driver comfort and safety integration.

Proper welding technique and fixture alignment during installation are essential to realize the structural benefits of this mount. Consult your vehicle's frame specifications and welding procedure to ensure correct positioning. Pairs with BUTLERBUILT seat frames and brackets for complete, cohesive mounting systems.