OMP multi hole steel side mounts, 400mm. Part number HC922.
Side mounts bolt to the sides of a competition bucket and carry it down to the sub-frame or the floor. Side mounting generally sits you lower than base mounting and gives you a say over the seat angle, which is the reason most people move to it.
The multiple holes are the point
With more than one hole position you can move the seat up or down and tip the backrest without cutting or drilling anything, so you can set the driving position properly rather than accepting whatever a single fixed hole gives you. Get it settled before you commit to harness mounting points, because moving the seat afterwards moves your shoulder line.
400mm is a long bracket. It suits a bigger shell and a car where the mounting points are well spread, and it is not what you want in a small hatchback where a shorter mount sits the seat better.
Steel
Steel is stiffer than alloy and heavier, and it is what competition regulations sometimes call for. If you are building to a rulebook, check the wording before you order alloy anywhere in the seat installation.
Before you order
Our listing on this part is thin. Tell us the seat and the car and we will confirm the length, the hole pattern and the approval status against OMP’s own data before you buy, rather than have you order twice.






