Product Description
Toyota OEM caster wheel assembly, part number TO 00590-04780-71-A, features a 4.00 inch outer diameter and 2.50 inch width polyurethane tread (95A Shore hardness), sealed ball bearings, and a precision-machined bore. Designed for compatibility with Toyota 7HBW30, 8HBW30, 6HBW30, 8HBE30, and 8HBE40 electric pallet trucks. Cross-references with multiple aftermarket and OEM part numbers.
Specifications
Material & Construction
| Tread Material | Polyurethane, 95A Shore hardness |
| Core Material | Machined steel core |
| Bearing Type | Sealed ball bearings |
Dimensions
| Outer Diameter | 4.00 inch |
| Width | 2.50 inch |
| Bore Diameter | 0.867 inch (precision-machined) |
Part Numbers & Compatibility
| Manufacturer Part Number | 0590-04780-71-A |
| Factory-Spec Part Number | 0590-04780-71 |
| Cross-Reference Part Numbers | 0590-04780-71-SG, TY0590-04780-71, TY0590-04780-71-AS, TO0590-04780-71, TO005900478071, TY005900478071, 005900478071 |
| Compatible Equipment | Toyota 6HBW30, 7HBW30, 8HBW30, 8HBE30, 8HBE40 electric pallet trucks |
Frequently Asked Questions
Q: What are the dimensions and material specs for the TO 00590-04780-71-A caster wheel?
A: The TO 00590-04780-71-A features a 4.00 inch outer diameter and 2.50 inch width with polyurethane tread compound rated at 95A Shore hardness. The wheel is molded onto a steel core with a precision-machined bore of 0.867 inch diameter. Sealed ball bearings provide smooth rotation and extended service life in continuous-duty applications.
Q: Which Toyota pallet truck models are compatible with part number TO 00590-04780-71-A?
A: This caster wheel assembly fits Toyota 7HBW30, 8HBW30, 6HBW30, 8HBE30, and 8HBE40 series electric pallet trucks. Verify mounting bore diameter and axle compatibility on your specific unit before ordering. Cross-reference numbers include TY00590-04780-71, TO005900478071, and 005900478071.
Q: What is the expected lifespan and maintenance requirement for this polyurethane caster wheel?
A: The 95A Shore hardness polyurethane compound provides moderate wear resistance for general-duty warehouse and light industrial use. Lifespan varies based on load, floor conditions, and hours of operation but typically ranges 12-24 months under normal use. Sealed bearings minimize maintenance needs. Monitor for flat spots, noise, or lateral play as indicators of replacement timing.
Q: What equivalent or superseding part numbers should I know about for TO 00590-04780-71-A?
A: Cross-reference part numbers include TO 00590-04780-71, TY00590-04780-71, TO005900478071, TY005900478071, and 005900478071. The equivalent part TO 00590-04780-71-SG and TY00590-04780-71-AS are also direct substitutes. When ordering replacement inventory, confirm OEM references match your equipment serial range to ensure fit.
Q: Is the TO 00590-04780-71-A suitable for wet floor or cold storage environments?
A: The 95A Shore hardness polyurethane compound provides adequate grip for dry to moderately damp floor conditions. For heavy wet floor exposure or cold storage below 20 degrees Fahrenheit, consider the higher-hardness variants such as the 97A tread option. The sealed bearing design protects against moisture ingress but does not guarantee performance in submerged conditions.