A Planted Technology seat bracket for the BMW 5 Series on the E34 chassis, 1987 to 1996. Part number SB288.
The E34 sits before the E39, which takes SB186, and BMW changed the floor between them.
The E34 M5 is a hand built car
Worth knowing before you touch the interior. BMW Motorsport assembled them largely by hand and the specification varied between cars. Values have gone somewhere serious and originality counts for real money, so if yours is an M5, keep everything and label it.
The Touring version of the M5 is rarer still. If you have one, talk to us before you do anything at all.
On the ordinary cars
A 535i or 525i E34 is a cheap, tough, well balanced rear wheel drive saloon and a sensible thing to build. The standard seat is a comfortable saloon seat with nothing to brace against.
Practical
Thirty five years old. E34s resist rust better than the E30 but the seat mounting area is still worth a look with the carpet up.
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 BMW 5 Series. 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.
Is this held in stock, or made to order?
Made to order rather than shelf stock. Planted import these from the US in monthly batches, so budget 3 to 5 weeks from ordering to dispatch.