Mary Gearheart, Secretary of the club, also happens to make and sell these high-quality replacement AC B-Series seat cushions and armrests. The large backrest on the right is for the B-110 and later B-series, while the small backrest on the left is for the B-10 and earlier tractors. Click here to contact
NOTE: Mary has informed me that she has located a source for the materials and is once again producing these nice cushions.
You can see the difference in the original back cushions (and seat frames) in these pictures from original sales brochures, below. The early style is on the left and the newer style on the right.
I've heard that Wells Implement also sells similar replacement cushions, without pleats.
Sandy Lake Implement sells high-quality, stitched "roll" seats. You can see a set of them on my Big Ten in the Gallery.