Product Description
MO 12X3021 is a spring for the hydraulic unit of Mobile MLX55, ML55, and ML45 manual pallet jacks, used for return mechanism in the hydraulic lifting system. No detailed technical data (load capacity, dimensions, material grade, or assembly instructions) is available from OEM or approved distributors.
Compatibility: Fits pallet jacks made by Mobile, model MLX55. SKU: MO 12X3021
Specifications
Part Numbers
| OEM Part Number | MO 12X3021 |
| Cross-Reference Part Numbers | ML12X3021 (alternate part number); MO 3021 (superseded by MO 12X3021 for some applications) |
| Compatible Models | MLX55, ML55, ML45 manual pallet jack hydraulic units |
Frequently Asked Questions
Q: What does the MO 12X3021 spring do in a Mobile pallet jack?
A: The MO 12X3021 is a return spring for the hydraulic unit. It restores the piston to its neutral position during the lowering cycle, maintaining consistent pressure release in the lifting system.
Q: Which Mobile pallet jack models are compatible with MO 12X3021?
A: The MO 12X3021 fits Mobile MLX55, ML55, and ML45 manual pallet jacks. Confirm your exact model before ordering.
Q: What are the cross-reference part numbers for MO 12X3021?
A: ML12X3021 is an alternate part number for the same spring. MO 3021 is the superseded designation for some Mobile applications; verify compatibility with your serial range.
Q: How do I know if the return spring needs replacement?
A: Replace the MO 12X3021 spring if the pallet jack handle does not return to neutral position automatically, if lowering is slow or incomplete, or if hydraulic pressure does not release smoothly after lifting.
Q: What material is the MO 12X3021 spring made from?
A: The MO 12X3021 is a precision stainless steel compression spring engineered for high-cycle hydraulic service. No detailed material grade or load rating data is available from OEM sources.