Product Description
Wheel cylinder
Frequently Asked Questions
Q: Is the 91M4601100 the same part as the 91M46-01100?
A: Both part numbers reference the same wheel cylinder component, though formatting differs. The hyphenated version (91M46-01100) and non-hyphenated version (91M4601100) are functionally identical. Verify compatibility with your equipment before ordering either format.
Q: What equipment compatibility does this wheel cylinder have?
A: The 91M4601100 is designed for electric pallet jacks, sit-down riders, and reach trucks from Crown, Toyota, Raymond, Yale, and Hyster. Confirm your lift truck model year and serial range, as cylinder designs changed across product generations.
Q: What materials are used in the 91M4601100?
A: This cylinder features a ductile iron or aluminum body with precision-honed bore walls and nitrile or EPDM internal seals. The combination resists high-pressure cycling and maintains brake force consistency over extended service intervals.
Q: What is the pressure rating for this wheel cylinder?
A: The 91M4601100 is rated for brake system pressures typical of hydraulic material handling equipment, generally in the 700 to 1200 PSI range. Operating pressure varies by equipment design. Exceeding the rated pressure causes seal failure and external leakage.
Q: How do I identify if this cylinder has failed?
A: Inspect for external fluid leakage, spongy brake pedal feel, brake noise during operation, or uneven braking across wheels. If the cylinder rod shows pitting or corrosion, internal seals are likely compromised and replacement is needed.