The Sparco seat sliding runner kit (0049306) is the straightforward way to add fore-aft adjustment to a base-mounted sport seat. It bolts directly to Sparco’s 345mm x 271mm bolt pattern and works with any base-mount seat that uses the same platform, including OMP and Corbeau base-mount reclining and bucket seats alongside Sparco’s own range.
Pricing is per single runner kit, which fits one seat. If you’re fitting both sides, the two-runner bundle (SS0049302-X2) is the easier order.
These are steel and are sold as a non-FIA fitment. That means they’re fine for road use and track days, but not for cars competing under FIA regulations where the homologated fixing alone must carry the load. For competition use, the seat usually bolts directly to a homologated sub-frame without a runner in between.
The most common use case is kit cars and conversions where the standard runners are gone and you need a clean way to mount the seat with some adjustment. For a standard road car using one of Sparco’s vehicle-specific sub-frames, many people find they don’t need runners at all because the fixed position is already dialled in.
On a base-mounted Sparco seat such as the R100, these runners bolt straight to the bottom of the seat. On a side-mounted bucket seat, fit a pair of side mounts to the seat shell, such as the FIA steel side mounts (SS004902), and these runners bolt underneath the side mounts to give the seat fore and aft adjustment. With so many bucket seat sizes and widths, we always recommend contacting us for further advice before ordering.
We carry these from stock. If you’re fitting them to a base-mount seat that isn’t from Sparco, OMP, or Corbeau, it’s worth confirming the bolt pattern matches the standard 345mm x 271mm before ordering.




