SEAT MOUNT RH 89-97 MAZDA MIATA NA

The Seat Mount Right-Hand for 1989–97 Mazda Miata NA (part number 600SB101R) is a precision seat adapter bracket designed to mount Sparco 600 Series racing seats to the passenger side of NA-generation Miatas. Fabricated from steel with a black powder-coat finish, this bracket enables serious enthusiasts to upgrade from factory seating to professional-grade competition seats while maintaining secure fitment to the original chassis mounting points.

The bracket measures 17 × 4 × 19 inches and weighs 8.1 pounds, providing substantial structural support for the lateral loads generated during aggressive driving or track use. Steel construction with black powder-coat finish resists corrosion and abrasion from repeated entry and exit, while the engineered geometry ensures the seat sits at the correct height and rake relative to the steering wheel and dashboard. The passenger-side configuration pairs with a matching driver-side bracket to complete a full two-seat upgrade, a common modification for Miata owners pursuing autocross, road course, or performance-focused builds.

Miata NA owners upgrading to Sparco bucket seats appreciate improved lateral support, reduced seat travel during hard cornering, and the precise fitment that this OEM-compatible adapter bracket delivers. This bracket is essential for anyone retrofitting Sparco 600 Series seats into a first-generation Miata, ensuring safe, reliable installation without drilling or welding modifications to the factory floor. The right-hand unit is sold individually—order both driver and passenger brackets to complete a full interior upgrade.