Cadillac Buick Chevrolet Oldsmobile Pontiac GMC
Years: 1981 - 1988
Replaces Part No: 20614175
*The same coupling is used on both the driver's seat and passenger seat.
Proper Parts has re-engineered an improved design that ensures a smooth slip fit to the seat motor and transmission. The D-shaft openings are very accurate. It is 1.46" long (37 mm). We manufacture these couplings from a urethane chosen for its hardness and toughness while still having good flexibility. When the seat comes to the end of its track there is no cushion, and this coupling allows the motor to slow down gradually ensuring a longer life for all of the components involved. It is much better than the original.
If your coupler is yellowing or shows any sign of cracking when held up to the light, we recommend replacing it.
Fits Seat Transmissions that had a RED or YELLOW driving gear / input shaft:
Important note about the Power Seat System: This power seat system is an antique. It is not an amusement park ride. It was NEVER designed for continuous use. Continuous use will overheat the bushings and lock or break the transmission. Move it to the position you like and leave it there. Do not repeatedly hit the end of the track going back and forth, and up and down. Unlike modern power seats that have current sensing, limit switches, and constant position monitoring, these systems do not even have a rubber cushion at the end of travel.