Product Description
U-Cup
Compatibility: Fits pallet jacks made by Mobile, model ECO I-55. Alternate model: ECO I55; ECO I 55. SKU: MO 18E305
Frequently Asked Questions
Q: What is a U-Cup and what does the MO 18E305 do?
A: A U-Cup is a double-acting elastomeric seal shaped like the letter U. The MO 18E305 seals the hydraulic cylinder rod in Mobile ECO I-55 pallet jacks, preventing fluid leakage while allowing rod movement. It operates in both directions of cylinder travel.
Q: Which Mobile pallet jack models require the MO 18E305 U-Cup?
A: The MO 18E305 is compatible with Mobile ECO I-55 manual pallet jacks. Alternate model numbers are ECO I55 and ECO I 55. Verify model identification on your equipment before ordering.
Q: What material is the MO 18E305 U-Cup made from?
A: The MO 18E305 is manufactured from an elastomeric polymer designed for hydraulic fluid compatibility. The material provides flexibility to seal rod movement while resisting degradation from extended fluid exposure and pressure cycling.
Q: What symptoms indicate the MO 18E305 U-Cup needs replacement?
A: Visible hydraulic fluid dripping from the cylinder rod, slow lifting or lowering, inability to hold load height, or external puddles under the pallet jack suggest U-Cup seal failure. Once compromised, the seal cannot be restored and requires replacement.
Q: Are there other part numbers compatible with the MO 18E305?
A: The MO 18E305 is an OEM Mobile part with no confirmed cross-reference numbers from other manufacturers. For Mobile ECO I-55 equipment, use the exact OEM part number to ensure proper seal fit and pressure rating.