COMPATIBILITY INFO: PTO Shaft & Clutch Assembly Rectangular Universal Half Sleeve 1″ x 6.25 QD – Rectangular. Part Number 398914 For FrontMount Mowers built since 1985. For 3344, 3348, 3452 & 3461 Decks Use 398918 for 3472, 3472R & 3572R Decks Also used for 440 & 660 AERA-viator Assemblies 2021 & newer Used for 412 & 512 Snowthrower Assemblies. QUALITY FIRST, MONEY SECOND: We focus on providing our clients higher value for the dollars they invest with us. The service-friendly design makes it easy to keep your zero-turn mower in peak operating condition. Fewer grease points and easy access to belts and filters translate into less time spent maintaining your mower, and more time using it profitably. LAWN SERVICE SATISFACTION GUARANTEED: Don’t cut corners on quality. No matter what mower you own, with a wide range of lawnmower parts available, you’ll easily find necessary parts to fix up your machine. You can fully rely on original parts that we provide to repair and extend