Description This high-quality Boss Disc (SKU: JM1608) is a durable replacement part designed to fit a range of popular mower decks. With a 7/8” (22mm) centre hole and a 5/32” (4mm) keyway, it provides a secure and precise fit for reliable cutting performance. Compatible with OEM references including Masport 580083, Jetfast 900236, and 90011, this disc is an ideal choice for maintaining your mower’s efficiency. Features Precision-engineered with a 7/8” (22mm) centre bore and 5/32” (4mm) keyway for accurate installation. Robust construction ensures long-lasting durability in tough Australian conditions. Direct replacement for multiple OEM part numbers, simplifying your parts sourcing. Specifications SKU JM1608 OEM Masport 580083, Jetfast 900236, 90011 GA Spares BLH4074 Stens # JM1200 Measurements 7/8” (22mm) centre, 5/32” (4mm) keyway. Fits Masport mower decks (OEM 580083) Jetfast mower decks (OEM 900236, 90011) Compatible with other brands using Stens JM1200 Product Line Mower Deck Parts – replacement discs and pulleys for rotary mowers.
