A Planted Technology seat bracket for the Mazda B Series truck, fifth generation on the UN chassis, 1998 to 2006. Part number SB391.
It is a Ford Ranger with a Mazda badge
Genuinely useful to know. Ford and Mazda badge engineered these both ways over the years, and the fifth generation B Series is a Ranger of the period with different grilles and lights. Parts, dimensions and most of the interior cross reference directly.
If you are looking at a Ranger rather than a Mazda, send us the registration and we will tell you whether this bracket suits it. It very likely does.
The fourth generation two door takes SB335.
What the seat change is for
Being held over a long day, not sitting lower. The pickup driving position is part of why you have one.
If the truck works or sees mud and water, ask us about neoprene rather than velour.
Handed, so order twice for a pair.
Have you written anything about this exact product?
Yes, we have covered this exact product: Lexus Planted Technology Frames Updated For 2026, and Customer Car: Subaru Impreza With Corbeau RRS Seats and Planted Technology Brackets. 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 Mazda B Series Truck [5th Generation / UN Chassis] (1998-2006). 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?
Check the bolt pattern in the specification against your seat. The Compatible seats tab above lists what bolts straight on. 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 Planted frames. If more than one person drives the car, budget for the runner. Our guide to sliding runners explains the options and widths.
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.