Product Description
Load wheel assembly SU S9151-A for electric lift trucks, featuring a polyurethane tread with proprietary XL3 bonding on a cast iron core, Grade 8 fasteners, machined finish, and anti-corrosive protection. Includes required cross-reference part numbers.
Specifications
Material & Construction
| Finish | Machined core with anti-corrosive coating |
Part Numbers
| Manufacturer Part Number | SU S9151-A |
| Cross-Reference Part Numbers | SU S9151-XL-A; S9151XL; SU S9151-XL; Superior XL |
| OEM Part Number | SU S9151-A |
Frequently Asked Questions
Q: What is the core material in the SU S9151-A wheel assembly?
A: The SU S9151-A uses a cast iron core instead of a steel core. Cast iron provides good rigidity and cost efficiency but is slightly heavier than forged steel. The proprietary XL3 bonding technology bonds the polyurethane tread to the cast iron hub. Cast iron cores resist lateral flex and are well-suited for sustained high-load applications.
Q: What cross-reference part numbers does the SU S9151-A have?
A: The SU S9151-A cross-references to SU S9151-XL-A, S9151XL, SU S9151-XL, and is sometimes listed as Superior XL in legacy documentation. When ordering, always use the exact part number that matches your truck documentation to ensure correct fitment. Part number notation varies by supplier and era.
Q: Does the SU S9151-A come with fasteners, and what grade are they?
A: Yes. The SU S9151-A includes Grade 8 fasteners, which provide superior tensile strength and resist vibration loosening compared to standard Grade 5 hardware. Grade 8 bolts are mandatory for electric lift truck wheel assemblies to prevent fastener failure under dynamic loads. During installation, use a calibrated torque wrench to tighten per OEM specification (typically 50-65 ft-lbs).
Q: What is the anti-corrosive finish on the SU S9151-A core?
A: The SU S9151-A core is machined and treated with an anti-corrosive coating to protect the cast iron surface from rust and oxidation. This coating extends the service life of the core, especially in wet or outdoor storage environments. The polyurethane tread also acts as a moisture barrier around the hub, further protecting the core.
Q: Is the SU S9151-A a drop-in replacement for OEM wheels on Hyster or Jungheinrich lift trucks?
A: The SU S9151-A can be a compatible replacement if the wheel diameter, width, bore diameter, and bore depth match the OEM specification for your specific truck model and serial range. Hyster and Jungheinrich models use various wheel sizes. Verify the OEM part number and dimensions before ordering. Never assume compatibility across different truck brands or model generations.