Description
51804 Hydro-Gear O-Ring 111 (.103 Cross Section) (Genuine OEM Part)
The Hydro-Gear 51804 O-Ring Size 111 (.103 Cross Section) is a genuine OEM sealing component designed for use in Hydro-Gear hydrostatic transmission systems. This precision O-ring provides a reliable fluid-tight seal between hydraulic components, preventing oil leakage and maintaining proper system pressure.
Manufactured to Hydro-Gears strict OEM specifications, the 51804 O-ring ensures correct material composition, dimensional accuracy, and resistance to hydraulic fluid, heat, and pressure. Using a genuine Hydro-Gear O-ring is essential for maintaining transmission efficiency and protecting internal components from contamination and fluid loss.
Key Details:
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Manufacturer: Hydro-Gear
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Part Number: 51804
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Part Type: O-Ring
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Size: Dash 111
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Cross Section: .103 Inch
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Function: Hydraulic sealing and leak prevention
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Material: Oil-resistant elastomer compound
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Installation: Direct OEM replacement
Compatibility:
The Hydro-Gear 51804 O-Ring is used in select Hydro-Gear hydrostatic pumps and transaxles, including serviceable transmission platforms such as:
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EZT (ZT-2200) Series
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ZT-2800 Series
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ZT-3100 Series
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ZT-3400 Series
These Hydro-Gear transmission systems are commonly installed in zero-turn mowers and commercial turf equipment from manufacturers such as:
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Ariens
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Gravely
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Scag
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Husqvarna
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Toro
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Exmark
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Cub Cadet
The genuine Hydro-Gear 51804 O-ring plays a critical role in maintaining hydraulic pressure, preventing fluid leaks, and ensuring long-term reliability of Hydro-Gear hydrostatic drive systems.
