Product Description
The SU S9143-XL is an industrial load wheel designed specifically for electric lift trucks. It is manufactured from a premium polyurethane compound, ensuring high durability and resistance to abrasion, coning, and bond separation. This wheel is engineered as a direct replacement for SU S9143-XL applications.
Specifications: 4.000 inch diameter x 2.500 inch width (4.000" x 2.500" | 4 x 2.5 wheel | 4 x 2-1/2 | 101.60mm x 63.50mm)
• Premium polyurethane construction for enhanced durability
• XL3™ bonding technology for superior resistance to wear
• Designed for optimal performance in industrial environments
This load wheel is ideal for use in electric lift trucks, providing reliable performance and longevity in demanding applications.
Specifications
Material
| Wheel Core Material | Machined steel core for durability |
Part Numbers
| Manufacturer Part Number | SU S9143-XL |
| OEM Part Number | SU S9143-XL-A-R |
| Alternate Part Number | S9143XL |
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 4 |
| Inside Diameter | 1.938 |
| Width Side to Side | 2.5 |
| Tread Profile | 1/4 Radius |
| Bore Depth | 0.591 |
| Hub Width | 2.5 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What is the difference between the SU S9143-XL and standard load wheels?
A: The SU S9143-XL features premium Cushothane XL polyurethane construction with enhanced resistance to abrasion, coning, and bond separation compared to standard compounds. It has a 1/4 radius tread profile (versus 3/8 radius on entry-level models) and a machined steel core for improved durability. The 4.000 inch x 2.500 inch dimensions remain standard. The XL3 formula resists wear in higher-cycle operations.
Q: Are there OEM cross-references or supersession numbers for the SU S9143-XL?
A: The SU S9143-XL carries OEM part number SU S9143-XL-A-R. Alternate designations include S9143XL when spaces or hyphens are omitted. Always verify the exact part number on your equipment or invoice before ordering to avoid compatibility issues with your specific electric lift truck model.
Q: How do I diagnose if a SU S9143-XL wheel is failing?
A: Inspect the wheel while the truck is safely lifted and off the floor. Spin the wheel by hand and listen for grinding or rattling, which indicates core or bearing damage. Look for flat spots, cracks in the polyurethane, or separation where the tread meets the hub. Press firmly on the wheel edge, check for excessive play or movement. If any of these symptoms are present, replace the wheel immediately to prevent truck stoppage or load shift.
Q: Can the SU S9143-XL be installed on any 4 x 2.5 wheel application?
A: The SU S9143-XL has a 2.0467 inch bore outside diameter and 0.59 inch bore depth. It will fit any lift truck hub designed for these specifications. However, verify your truck model documentation and hub bore diameter before purchase. Some Crown, Raymond, Yale, Toyota, and Hyster models use this footprint, but serial number ranges and configuration options vary. Do not assume compatibility based on general model names alone.
Q: What maintenance extends the life of the SU S9143-XL wheel?
A: Keep the wheel clean of oil, grease, and chemical spills, which degrade polyurethane. Check wheel fasteners monthly and tighten if loose. Avoid operating on extremely abrasive or sharp surfaces that accelerate tread wear. Rotate or replace wheels evenly across the truck if wear patterns are uneven. Store the wheel indoors away from direct sunlight and extreme temperatures when not in use. Replace wheels that show tread wear less than 1/16 inch deep.