The Sparco 600 series seat base is a direct fit mounting bracket that adapts a Sparco or compatible racing seat to the factory floor mounting points of the Mazda Miata. It is formed from 3/16 inch steel for a strong, flex free platform and bolts to the OEM seat mounts with no floor modification. A wide flat top surface also lets side mounts be fixed directly to the base for the lowest seating position. This is the passenger (right) side base.
| Type | Seat mounting base (bottom mount) |
| Material | 3/16 in steel |
| Side | Passenger (right) |
| Mounting | Bolts to factory seat mounts |
| Part Number | 600SB109R |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999 | Mazda | Miata | 10th Anniversary |
| 1999-2005 | Mazda | Miata | Base |
| 2000-2005 | Mazda | Miata | LS |
| 2004-2005 | Mazda | Miata | Mazdaspeed |
| 2000-2003 | Mazda | Miata | SE |
| 2003 | Mazda | Miata | Shinsen |
