Product Description
Locking Ring MG 121 is an OEM Magnum spare part for Handjak 55 manual pallet jacks (5000 hydraulic unit), designed as a hardened steel retaining ring serving critical locking and retention functions within the hydraulic pump assembly.
Compatibility: Fits pallet jacks made by Magnum, model 5000. SKU: MG 121
Specifications
Material & Construction
| Material Construction | Hardened steel (exact grade not indicated in available sources) |
| Surface Finish | Machined finish |
Part Numbers
| Manufacturer Part Number | MG 121 |
| OEM Part Number | MG 121 |
| Model Compatibility | Compatible with Magnum Handjak 55 manual pallet jack, 5000 hydraulic unit |
Frequently Asked Questions
Q: What is the MG 121 Locking Ring and what is its function?
A: The MG 121 is an OEM hardened steel retaining ring designed for Magnum Handjak 55 manual pallet jacks with a 5000 hydraulic unit. It provides critical locking and retention within the hydraulic pump assembly, preventing component separation during operation.
Q: What material is the MG 121 made from?
A: The MG 121 is constructed from hardened steel with a machined finish. This material selection provides durability and secure retention under the pressure and vibration cycles of hydraulic pump operation.
Q: Which Magnum pallet jack models use the MG 121 locking ring?
A: The MG 121 fits Magnum Handjak 55 manual pallet jacks equipped with a 5000 hydraulic unit. Confirm your pallet jack model and hydraulic unit version before ordering.
Q: What happens if the MG 121 locking ring fails or is missing?
A: If the MG 121 fails or is missing, internal pump components may separate or shift, causing hydraulic fluid loss, reduced pressure, and complete loss of jack control. Replace immediately if missing or damaged.
Q: How do I know if the MG 121 needs replacement?
A: Replace the MG 121 if you observe hydraulic leaks near the pump assembly, inconsistent pressure response, or if the ring is visibly bent or deformed. Preventive replacement is recommended during pump service.