Product Description
The SU S9143-XL-A is a polyurethane load wheel assembly for industrial electric lift trucks, featuring a Cushothane XL™ 97A compound for high load capacity and long service life. No OEM replacement, supersede, or direct cross-reference numbers are identified in available sources. Load wheel dimensions and bearing specifications are not documented for this SKU in searchable technical sources. Intended as an aftermarket solution for standard electric forklift load wheel 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)
Specifications
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 are the specifications and material composition of the SU S9143-XL-A?
A: The SU S9143-XL-A is a 4 inch diameter by 2.5 inch width polyurethane load wheel featuring Cushothane XL compound at 97A Shore A durometer. It has a 1/4 radius tread profile, 1.938 inch inside diameter, 0.591 inch bore depth, and 2.5 inch hub width. The wheel is designed for electric forklift and load wheel applications requiring high durometer polyurethane for extended service life and heavy-cycle operations.
Q: What is the cross-reference part number for the SU S9143-XL-A?
A: The SU S9143-XL-A carries cross-reference part number SU S9143-XL-A-R. Both designations refer to the same wheel assembly. When ordering, use either part number as they are interchangeable. Verify the exact part number in your equipment manual or service documentation to ensure you receive the correct product.
Q: Is the SU S9143-XL-A a direct OEM replacement or an aftermarket solution?
A: The SU S9143-XL-A is an aftermarket solution for standard electric forklift load wheel applications. No confirmed OEM supersession or direct cross-reference numbers are documented in available technical sources. It is compatible with lift trucks that use 4 x 2.5 inch wheels with a 2.0 inch bore. Confirm your truck is designed for this wheel footprint before installation. Do not assume compatibility based on truck brand or general model designation alone.
Q: How does the 97A durometer of the SU S9143-XL-A affect performance?
A: The 97A Shore durometer indicates a harder, more rigid polyurethane compound than softer wheels. This results in reduced rolling resistance, longer tread life, and improved resistance to wear and coning under sustained high-load or high-cycle operations. However, the harder compound may transmit more vibration and provides less shock absorption on rough or porous concrete. Use 97A wheels in smooth, temperature-controlled warehouse environments or for long-duration lifting operations.
Q: What steps should I follow to install the SU S9143-XL-A wheel?
A: Safely lift the truck on a level surface using appropriate jacks or lift equipment. Remove the fasteners securing the old wheel. Use a wheel puller or arbor press to remove the damaged wheel. Inspect the hub bore and clean any debris. Press the new SU S9143-XL-A wheel onto the hub until fully seated. Reinstall all fasteners and tighten to the torque specification in your truck manual. Test the wheel by spinning it by hand to confirm smooth rotation and no excessive play before operating the truck.
Q: What is the expected service life of the SU S9143-XL-A wheel?
A: The 97A durometer Cushothane XL compound typically provides 3000 to 5000 operating hours under normal warehouse duty in dry environments. Heavy-cycle operations, wet floors, cold storage, or abrasive surfaces will reduce service life. Inspect every 500 hours for tread wear, flatting, or separation. Replace the wheel if tread depth drops below 1/16 inch or if structural damage is visible.
