Planted Technology seat brackets for the Porsche 912. Part number SB053-4955.
The base part number is shared with the 1966 to 1973 911, which follows directly from what the 912 is: the same body with a four cylinder engine in the back.
The car that kept Porsche solvent
When the 911 arrived it was considerably more expensive than the 356 it replaced, and Porsche needed something to sell to existing customers. The 912 used the 356’s flat four in the new body, and for several years it outsold the 911.
That history is why 912 values have followed the early 911 upwards: it is the same car to look at and to sit in, for rather less money.
Send us the chassis number
This listing carries no year range. The 912 ran from 1965 to 1969, with the 912E following in 1976, and they are not the same thing.
Originality counts. Store the original seats and every fixing somewhere dry and label them. Ask us about period trimmed shells.
Have you written anything useful for my car?
Yes: Top 5 reclining seat choices for your Porsche 912, including our fitting guide, and Lexus Planted Technology Frames Updated For 2026. Those are written around the same car, from real fittings and customer questions, so they are worth a look before you decide.
Will this fit my car?
This frame is car-specific, so match the vehicle in the product name to your exact car and generation. If you are unsure, 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.