Product Description
Pump Piston
Compatibility: Fits pallet jacks made by Mobile, model ECO I-55 Hydraulic Unit. Alternate model: ECO I55 Hydraulic Unit; ECO I 55 Hydraulic Unit. SKU: MO 18E303
Frequently Asked Questions
Q: What equipment does the MO 18E303 pump piston fit?
A: The MO 18E303 fits Mobile ECO I-55 hydraulic units used in manual pallet jacks. It is compatible with alternate model designations ECO I55 and ECO I 55. Verify your equipment manufacturer and model before ordering.
Q: What is the function of the MO 18E303 pump piston?
A: The pump piston is a critical component in the hydraulic pump assembly. It converts input motion into fluid pressure that raises and lowers the pallet jack load. The piston seals against the pump bore to maintain system pressure.
Q: Are there cross-reference part numbers for the MO 18E303?
A: The MO 18E303 is an OEM Mobile part. No confirmed cross-reference part numbers are available from other manufacturers. Use the exact OEM part number for compatibility assurance.
Q: How do I know if my MO 18E303 pump piston needs replacement?
A: Signs of pump piston failure include loss of lifting pressure, slow raise or lower speed, difficulty maintaining load height, or visible hydraulic fluid leakage from the pump assembly. A weak or non-functional pump often indicates piston wear or seal degradation.