274301 – Hydro-Gear .312" Ground Steel Ball (Genuine OEM Precision Ball Bearing Component) The Hydro-Gear 274301 Ball (.312 Ground) is a genuine OEM precision-ground steel ball designed for use in compatible Hydro-Gear hydrostatic transmissions, hydraulic pumps, and transaxles. Manufactured to Hydro-Gear's exact engineering specifications, this 5/16-inch (.312") precision ground ball is used within hydraulic and mechanical assemblies to provide accurate sealing, check valve operation, or component positioning for reliable transmission performance. Constructed from hardened, precision-ground bearing steel, the 274301 delivers exceptional wear resistance, dimensional accuracy, and long service life under high-pressure hydraulic conditions. Product Details Part Number: 274301 Brand: Hydro-Gear Part Type: Precision Ground Steel Ball Ball Diameter: .312 Inch (5/16") Material: Hardened Precision Bearing Steel Function: Check valve, hydraulic control, or internal transmission component Installation: Direct OEM Replacement Genuine Hydro-Gear OEM Part Key Features Genuine Hydro-Gear OEM precision ball Precision-ground .312-inch (5/16") diameter Hardened bearing steel construction Excellent wear and corrosion resistance Designed for high-pressure hydraulic applications Maintains accurate hydraulic system operation Direct OEM replacement Function The Hydro-Gear 274301 Ground Ball serves as a precision internal component within compatible hydrostatic transmissions and hydraulic pumps. Depending on the application, it may function as part of a check valve, pressure control valve, or hydraulic sealing assembly, helping maintain proper hydraulic pressure, fluid flow, and transmission efficiency. Compatible Equipment The 274301 Precision Ground Ball is used in numerous compatible Hydro-Gear hydrostatic transmissions and hydraulic systems commonly installed on: Commercial zero-turn mowers Residential zero-turn mowers Stand-on mowers Commercial turf maintenance equipment Professional grounds maintenance equipment Hydro-Gear transmissions are widely used by manufacturers including: Ariens Gravely Scag Toro Exmark Ferris Hustler Bad Boy Wright Bob-Cat Spartan Cub Cadet And many other outdoor power equipment brands Always verify your Hydro-Gear transmission model and illustrated parts diagram before ordering to ensure compatibility. Who Is This For? Commercial landscapers Outdoor power equipment repair technicians Hydraulic transmission specialists Equipment fleet managers Professional service centers Recommended Property Size Ideal for equipment maintaining: Residential estates Commercial landscaping operations Golf courses Municipal parks Sports complexes Industrial facilities Large commercial properties Pros Genuine Hydro-Gear OEM quality Precision-ground to exact tolerances Hardened bearing steel construction Excellent wear resistance Reliable hydraulic system performance Long service life Direct OEM replacement Cons Compatible only with specified Hydro-Gear transmission models Installation requires proper transmission disassembly and should follow the manufacturer's service procedures Comparison – Hydro-Gear 274301 vs Aftermarket Precision Balls Hydro-Gear 274301 OEM Ground Ball Genuine OEM specifications Precision-ground bearing steel Exact dimensional accuracy Superior wear resistance Designed specifically for Hydro-Gear hydraulic systems Aftermarket Replacement Balls May vary in diameter tolerance Variable material hardness Reduced hydraulic sealing accuracy Potentially shorter service life Why Buy from Barry's Power Equipment? Barry's Power Equipment supplies genuine Hydro-Gear OEM transmission components trusted by commercial landscapers, equipment dealers, and professional repair technicians. Genuine OEM Hydro-Gear replacement parts Fast nationwide shipping Competitive pricing Expert technical support Extensive inventory for Hydro-Gear, Ariens, Gravely, Scag, Toro, Exmark, Ferris, Hustler, Cub Cadet, Honda, Kawasaki, Kohler, STIHL, and many other leading outdoor power equipment brands.
