can this clutch fit 91 accord dx

DO the part numbers match... you can look them up online. Honda doesn't duplicate part numbers on idential parts....they have a pretty efficient numbering system.

For $56, I installed a brand new Perfection Clutch Kit in a Honda, which included the clutch and pressure plate, release bearing, pilot bearing, and alignment tool. Why not go new, when aftermarket clutch kits are so cheap and so good? Then, you will be getting all of the bearings that should be replaced and the all-important alignment tool. It's a lot of work to go through, if it doesn't work out and if you are not replacing the bearings. Be sure to use Honda Super High Temperature Urea Grease, when you lubricate the splined input shaft, annular groove, and pivot points.