The genuine Western 48985 Gland Nut Assembly secures the internal rod layout and maintains a leak-free fluid seal within 1-1/2 inch hydraulic cylinders. This factory replacement component includes the pre-installed low-friction pressure seals and wiper rings required to rebuild your ram box. Consequently, installing a fresh assembly prevents vertical blade drift and eliminates external oil loss when lifting or angling your plow. Because a compromised seal can rapidly drain your hydraulic fluid reservoir, parts specialists recommend swapping scored packing components during routine seasonal maintenance.
This plow-side hydraulic component provides an exact match for specific single-acting or double-acting rams. Because it is engineered with precise factory threading, the unit screws straight onto the cylinder body. Furthermore, the durable steel casing handles continuous high-pressure spikes when clearing dense, heavy snow. Therefore, your blade responds instantly every time you activate the cab remote.
Benefits of the Western 48985 Gland Nut Assembly
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Engineered as a direct fit for Western, Fisher, and SnowEx 1-1/2 inch hydraulic plow cylinders.
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Replaces the older factory component part numbers 56555 and 56556 seamlessly.
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Includes pre-installed internal packing seals and a heavy-duty rod wiper ring to keep out winter grit.
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Compatible with the 56538k lift cylinder and 49460 or 56614 angling rams.
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Restores absolute hydraulic pressure retention to maximize operational speed and lift capability.
Additional Info and Common Related Parts
| Part Number | Item Name | Technical Role |
| 49330 | High Performance Fluid (Gallon) | Recharges the main hydraulic system after opening cylinders for seal replacement. |
| 49311 | High Performance Fluid (Quart) | Ideal for quick field top-offs to maintain clean hydraulic reservoir levels. |
| 56538k | Lift Cylinder Ram Assembly | Utilizes this exact gland nut assembly to secure its internal chrome rod. |
| 49326 | Dielectric Grease | Seals and shields electrical grille connections from winter moisture during service. |
Always refer to your Western Plow’s documentation and vehicle-specific installation instructions to confirm compatibility and proper installation procedures.




Perfect fit, finish and seal.
Worked perfect
exact match !
As described