Product Description
SU S9139-EZ-A Load Wheel Assembly from Liftsplus.com is an aftermarket replacement component for electric lift trucks. The assembly serves as a load wheel for compatible electric pallet jacks or lift trucks, suitable for general warehouse and material handling environments where this SKU or its OEM equivalent is specified. Cross-reference and superseded part numbers are not available.
Specifications
Part Numbers
| Manufacturer Part Number | SU S9139-EZ-A |
| OEM Part Number | SU9139-EZ-A |
| Product Compatibility | Equipment using SU S9139-EZ-A load wheel, further component compatibility unspecified |
Frequently Asked Questions
Q: What is the OEM equivalent part number for the SU S9139-EZ-A?
A: The SU S9139-EZ-A carries an OEM equivalent listing as SU9139-EZ-A (note: the single versus double digit formatting). Both part numbers refer to the identical assembly. When ordering replacements or researching compatibility, either number will lead to the same composite hub load wheel.
Q: Which electric lift truck models are compatible with the SU S9139-EZ-A?
A: The SU S9139-EZ-A is designed for electric pallet jacks and walkie lift trucks that originally specified an EZ-type composite hub wheel at 3.250 inch diameter by 4.500 inch width. Compatibility documentation from the truck manufacturer does not list specific model numbers in current sources. Verify compatibility by comparing the original wheel diameter, width, and hub bore size with the replacement part before purchase.
Q: What is included in the SU S9139-EZ-A load wheel assembly?
A: The SU S9139-EZ-A is a complete assembly that includes the polyurethane tread bonded to the composite hub and pre-installed bearings. You do not need to purchase bearings or tread separately. The assembly is ready to install directly onto the lift truck axle after removal of the worn wheel.
Q: How do I prevent bolt loosening on the SU S9139-EZ-A hub during use?
A: Composite hubs have lower tensile strength than metal, so bolts can loosen over time from vibration. After installation, torque all hub bolts to the specification listed in your lift truck manual (typically 15 to 25 foot-pounds depending on bolt size). Re-check bolt tightness after the first 8 operating hours, then monthly. Apply threadlocker compound rated for composite surfaces to prevent further loosening between scheduled maintenance.
Q: What is the warranty period for the SU S9139-EZ-A?
A: Warranty terms vary by distributor. Most aftermarket load wheels carry a 30 to 90-day manufacturer warranty against defects in material or workmanship. Damage from overloading, impact, or improper installation is not covered. Retain your purchase receipt and contact the distributor within the warranty period if the wheel fails prematurely.