This is a used OEM coupler and it works with seat transmissions:
GM 20113446 R
Rolls-Royce & Bentley UB39167 BW
The transmissions were coupled directly to the seat motor through a black input shaft (or rarely white) and a black rubber coupler. The couplers are very durable but do occasionally fail.
Purchase Limit: one coupler per seat transmission purchase.
If you have any questions, please contact us.