An OMP direct fit subframe for the Citroen C4. Part number HC864.
A frame with no siblings
Unusually, the C4 sits on its own OMP part number rather than sharing a stem with related cars. So there is no equivalent frame to fall back on and nothing that carries over from another model in the group.
That makes confirming the car more important than usual. Send us the registration and we will check it against the part before anything ships.
What the frame actually does
It picks up the floor mounting points Citroen already provided and gives an aftermarket seat a flat base to bolt to. Nothing is drilled, nothing is fabricated, and the seat load goes into the structure the factory designed to carry it.
That last point is worth dwelling on. A seat bolted to a fabricated bracket is only as good as the fabrication, and in an accident that is the part that matters.
Seat choice
Two bolt patterns from the multi-hole clusters at each corner: 345mm by 271mm for Sparco, OMP and Corbeau base mount seats, 405mm by 290mm for Recaro.
An OMP frame therefore takes a Recaro where a Sparco frame will not.
The detail
Steel, base mount. Sold singly and handed, so choose RHD driver or RHD passenger and order twice for a pair. A side mount shell needs side mounts or adaption bars over the frame.
Have you written anything about this exact product?
Yes, we have covered this exact product: Citroen C2 Track Build with Sparco Rev Seats, 6 Point Harnesses and Roll Cage, and Customer Car: Citroen Saxo with Auto Style Type Retro Reclining Sport Seats. That is first-hand coverage from our own builds and showroom, not brochure copy.
Will this fit my car?
This frame is made for the Citroen C4. Chassis code and years matter more than the badge, as floor pans change between generations, so if your car sits near a changeover year, send us the registration and we will confirm before you order.
Which seats does it take?
It takes seats drilled 345mm x 271mm (the Sparco and OMP seat pattern) and 405mm x 290mm (the Recaro seat pattern). If your seat is not listed, tell us what you run and we will confirm the fit.
Do I keep fore-and-aft adjustment?
Only with a sliding runner between the frame and the seat, which is a separate part on OMP frames. If more than one person drives the car, budget for the runner. Our guide to sliding runners explains the options and widths.
Base mount or side mount, and does it matter?
This is a base-mount frame: the seat bolts down through its base, the simpler stack that suits seats with a flat bottom and keeps the install low-fuss. Our guide on base mount versus side mount explains the whole fitting stack.
Is this for the driver or passenger side?
Both sides are available on this listing, pick driver or passenger side at the point of order (sides listed are for right-hand-drive cars). Left-hand-drive car? Ask us, as the sides swap over and availability varies by model.
