Product Description
Load Wheel
Frequently Asked Questions
Q: What is the difference between the SU S254 and SU S250-A?
A: The SU S254 has a 5-inch diameter versus 6-inch on the S250-A. This smaller wheel requires less horizontal space and is designed for narrow-aisle trucks and pallet jacks. Load capacity drops to 4000 lbs per wheel. Check your truck documentation to confirm which size your vehicle requires. Installing the wrong diameter causes poor load distribution and steering problems.
Q: Can I upgrade from SU S254 to SU S250-A for higher load capacity?
A: No. The SU S254 and SU S250-A have different bore sizes and spindle diameters. Forced installation will crack the wheel or strip the axle thread. The spindle on 5-inch truck axles is 0.875 inches versus 1.0 inch on 6-inch trucks. If you need more load capacity, you must upgrade the entire truck axle assembly. Consult the OEM for compatibility.
Q: What trucks use the SU S254 load wheel?
A: The SU S254 is standard on Toyota 8FGU15, 8FGU18, and equivalent narrow-aisle electric lift trucks. Hyster J35-40XN and Crown RC5040 also use this wheel size. Verify your truck model year and serial number before purchasing. Trucks manufactured after 2015 may have updated wheel specifications. Contact the truck OEM if your model is not listed.
Q: How often do SU S254 wheels need replacement under normal duty?
A: Under normal warehouse duty at 5000 to 8000 hours per year, replace SU S254 wheels every 2-3 years or when flat spots or chunking appear on the tread. Inspect visually every 500 operating hours. Listen for grinding noise at the spindle as a warning sign of bearing wear underneath. Replace as a set of four or six to maintain balanced handling.
Q: Is the SU S254 available in polyurethane like the XL versions?
A: Yes. Order the SU S254-XL if you need the polyurethane option for extended lifespan and better resistance to oily floors. The SU S254 base model comes in standard rubber compound only. Polyurethane costs 30 percent more but lasts 50 percent longer, making it cost-effective over 5-year service life.