Product Description
Polyurethane press-on tire, SKU SU 13x5.5x9.5-FT-XL, designed for electric lift trucks. Outside diameter 13.00 inches, width 5.50 inches, inside diameter 9.50 inches. Manufactured with non-marking high-grade polyurethane bonded to a precision-machined steel core. Cross-reference compatible with Superior and Crown electric forklift models, including Crown part number 121501-345-01. Mounts as direct press-on to steel drive wheel hubs.
Specifications: 13.000 inch diameter x 5.500 inch width (13.000" x 5.500" | 13 x 5.5 wheel | 13 x 5-1/2 | 330.20mm x 139.70mm)
Specifications
Material
| Tread Material | High-grade polyurethane, non-marking |
| Core Material | Steel, precision-machined |
Part Numbers
| Manufacturer Part Number | SU 13x5.5x9.5-FT-XL |
| OEM Part Number | SU13X5.5X9.5-FT-XL |
| Cross-Reference Part Numbers | Equivalent to Superior SU13X5.5X9.5-FT-XL, matches Crown 121501-345-01, alternate Superior PA1300550955 |
| Supersedes/Replaces | Replaces Crown 121501-345-01, Superior PA1300550955 |
Wheel Specifications
| Outside Diameter (in) | 13.000 |
| Width (in) | 5.500 |
| Outside Diameter (mm) | 330.20 |
| Width (mm) | 139.70 |
| Material | Cushothane XL 97A |
Frequently Asked Questions
Q: What does the XL designation mean on the SU 13x5.5x9.5-FT-XL tire, and how does it differ from standard FT-P?
A: XL indicates extra-load capacity and extended service life. The FT-XL uses a thicker, more robust steel core and a heavier polyurethane compound layer (approximately 15 to 20 percent more material) than the standard FT-P. This provides greater durability for high-intensity, sustained-load applications. The non-marking polyurethane is also formulated for superior wear resistance. XL tires cost more upfront but deliver significantly longer service life in demanding operations, lowering cost-per-hour and reducing change-outs.
Q: Is the SU 13x5.5x9.5-FT-XL equivalent to Crown 121501-345-01, and can I use them interchangeably?
A: Yes. The SU 13x5.5x9.5-FT-XL is cross-referenced as equivalent to Crown part 121501-345-01 for fitment and performance on Crown electric forklifts and compatible platforms. Both tires are 13.000 OD x 5.500 width x 9.5 ID press-on assemblies. However, verify your Crown truck serial number or model plate to confirm compatibility, as some Crown variants use different core diameters or bore sizes. If in doubt, contact your Crown dealer or the Superior Parts technical line with your equipment serial number before ordering.
Q: What cross-references exist for the SU 13x5.5x9.5-FT-XL, and what parts are truly equivalent?
A: The SU 13x5.5x9.5-FT-XL is equivalent to Superior SU13X5.5X9.5-FT-XL (same part, different formatting), Crown 121501-345-01, and alternate Superior PA1300550955. The PA-series designation refers to the same assembly under an older part numbering system. Always verify core material (steel), dimensions (13 x 5.5 x 9.5), and tread type (smooth or X-groove) when cross-referencing. Substituting a different rim diameter (such as 8.5 or 10.5 inches) will not fit your hub and will cause installation failure.
Q: How is the SU 13x5.5x9.5-FT-XL steel core manufactured, and why does it matter?
A: The steel core is precision-machined from seamless or welded steel tube stock to exacting bore and OD tolerances. Precision machining ensures runout and concentricity are within 0.025 to 0.050 inches, critical for smooth tire installation and performance. Lower-quality cores with loose tolerances will cause vibration, uneven wear, and installation difficulty. The XL designation includes upgrade to precision-grade core machining, reducing defect rates and service problems. This is not merely a cosmetic upgrade; it directly impacts truck handling and tire longevity.
Q: What is the expected service life of SU 13x5.5x9.5-FT-XL in a fleet operation, and how does it compare to standard FT-P?
A: SU 13x5.5x9.5-FT-XL tires typically last 3000 to 5000 operating hours in high-duty fleet service, compared to 1500 to 3000 hours for standard FT-P tires. The thicker compound and robust core resist fatigue cracking, compound degradation, and separation under sustained high loads. In moderate-duty applications, XL tires can extend life even further. Calculate total cost-of-ownership by dividing tire cost by expected hours to tire-out; XL tires often deliver 20 to 30 percent lower cost-per-hour despite higher initial purchase price.
