An OMP direct fit subframe for the Seat Leon Mk1. Part number HC780-Leon.
Shares its floor with most of that VW generation
The Mk1 Leon sits on the platform that also carries the Golf Mk4, Bora, Audi A3 8L and Ibiza Mk2 6K, which is why they all share the HC780 base part number. The Golf Mk3, Lupo GTI and Polo Mk2 are on the same stem.
If you have seen a seat working in one of those, it very likely carries over. Ask us and we will confirm rather than have you guess.
The Cupra R is the one that gets built
And it is quick enough to need the seat. A Mk1 Leon of that specification carries real pace, and the standard seat was designed for a hatchback rather than for the power the hot versions ended up with.
Cars of this age are also past the point where the original foam is doing much, so you are usually replacing something tired.
The frame
Steel, base mount, on the mounting points already in the floor. Nothing drilled, originals come out whole.
Two bolt patterns: 345mm by 271mm for Sparco, OMP and Corbeau base mount seats, and 405mm by 290mm for Recaro. Sold singly and handed, so order twice for a pair.
Have you written anything about this exact product?
Yes, we have covered this exact product: Top 5 reclining seat choices for your Seat Leon Mk3, including our fitting guide, and Customer Car: BMW E39 With Bucket Seats Fitted Using Planted Technology Subframes. 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 Seat Leon MK1. 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.