John Deere® Tractors
Fits 9"/10" Dual Clutch - 300, 301, 840, 920
Fits 9"/10" Dual Clutch, with Continuous PTO - 820
Fits 9"/10" Dual Clutch, with Continuous PTO, without Reverser, with Flywheel AT21382 - 1020

Fits 9"/11" Dual Clutch BSN 349999, with Engine PTO, with Flywheel AT21382 - 2040

Fits 10" Single Clutch, with Trans PTO - 302
Fits 10" Single Clutch, with Trans PTO, without Reverser - 300, 301, 301A
Fits 10" Single Clutch, with Trans PTO or without PTO, with Flywheel AT21045 - 1020

1.00", 15 Spline - RCO*

*Definition:
RIGID
This term refers specifically to the drive plate that is attached directly to the solid steel plate. Opposite of dampened.
CUSHIONED
The clutch lining/steel plate will have some type of link to absorb the shock load. Most commonly you will see extra rivets and links between the ID of the facings and the OD on the drive plate. Not one solid steel plate.
ORGANIC
Organic clutch material is most commonly used in agricultural clutch discs. It provides the most flexibility.