PTO Shaft 396214R1 Fits Case/International Harvester 504 544 664 666 686. One New Aftermarket Replacement PTO Shaft Fits: Fits Case – Fits International / Fits FARMALL Tractor models: 3616 (Serial Number 999>), 504 (Fits FARMALL Serial Number 14952>, Fits International Serial Number 17590>), 544 (w/ 540 RPM PTO), 664 (w/ 540 RPM PTO), 666, 686 Fits Industrial / Construction models: 2504 (Serial Number 14952 >), 2544 (w/ 540 RPM PTO), 3616 (Serial Number 999>) Tech Info: Teeth: 22 / 16 Long: 11.560 Replaces Part Number: 396214R1. About Reliable Aftermarket Parts. Reliable Aftermarket Parts is your trusted source for high-quality replacement parts covering a wide range of outdoor and heavy equipment. We specialize in parts for Lawn & Garden, Snow Removal, UTV, ATV, and Golf Cart machinery, as well as Backhoes, Crawlers, Excavators, Tractors, Skid Steers, and more – covering most leading brands and models in the industry. Our team is here to help you find the right part and get your equipment back up and running. Please note: This policy does not apply to glass or seat orders. Please save all original packaging. If you receive an item not as described. Have questions before you order? How do I know my order was placed successfully? Can I return a part that doesn’t fit or that I no longer need? John Deere, Allis Chalmers, Ford/New Holland, Case, Massey Ferguson & More. Allis Chalmers, International Harvester, Caterpillar, Komatsu & More. Bad Boy, Briggs & Stratton, Cub Cadet, Honda, Sears, Snapper & More. Ariens, Briggs & Stratton, Jacobsen, Toro, Troy-Bilt, Sears & More. Expertly trained staff ready to help you track down the right part every time.