Product Description
The Polyurethane Load Wheel Assembly is designed specifically for Crown GPW Series electric pallet trucks, providing durability and reliability for heavy-duty applications. This assembly is an ideal direct replacement for the Crown part number CR 083970.
Specifications: 3.250 inch diameter x 4.500 inch width (3.250" x 4.500" | 3.25 x 4.5 wheel | 3-1/4 x 4-1/2 | 82.55mm x 114.30mm)
• Made from high-quality polyurethane for enhanced wear resistance
• Features a hardness rating of 95-A for optimal performance
• Engineered for easy installation and direct compatibility
This load wheel assembly is perfect for maintaining the efficiency of your electric pallet truck operations.
Specifications
Material & Construction
| Wheel Material | Polyurethane compound |
| Durometer Hardness | 95-A Shore hardness rating |
Part Numbers & Compatibility
| Primary Part Number | GW 9139-A |
| Base Part Number | GW 9139 |
| Cross-Reference Part Numbers | Crown CR 083970 direct replacement |
Wheel Dimensions
| Outside Diameter | 3.250 inches (82.55 mm) |
| Width (Side to Side) | 4.500 inches (114.30 mm) |
| Bearing ID | 30.000 mm |
Frequently Asked Questions
Q: Is GW 9139 a direct replacement for Crown CR 083970?
A: Yes. GW 9139 is a direct OEM equivalent to Crown CR 083970 load wheel. Both feature 3.250 inch diameter by 4.500 inch width, 30mm bearing ID, and 95-A Shore hardness polyurethane tread. Verify your Crown GPW Series model is equipped with a 30mm bore to confirm fitment before ordering.
Q: Can I use GW 9139 on a different lift truck brand?
A: GW 9139 is engineered for Crown GPW Series electric pallet trucks. Use on other brands requires verification that the axle bore is exactly 30mm and the load wheel pocket accepts 3.250 x 4.500 dimensions. Mismatched bore or pocket size will cause binding or failure.
Q: What is the difference between GW 9139 and GW 9139-A?
A: GW 9139 is the base part number. GW 9139-A is the primary/current manufacturer part number. Both are identical in dimensions (3.250 x 4.500 inch), bore (30mm), and material (95-A polyurethane). Order GW 9139-A for new purchases; GW 9139 is referenced for legacy compatibility.
Q: How do I know if GW 9139 load wheel needs replacement?
A: Replace when you observe flat spots, visible cracks in the tread, glazing (shiny, slick surface), or excessive noise during operation. If the wheel does not spin freely or the jack pulls to one side, check for bearing damage. A polyurethane wheel at 95-A hardness typically lasts 18-24 months under standard warehouse duty cycles.
Q: What tools do I need to install GW 9139?
A: You will need a wrench or socket set (size depends on your jack model axle fasteners, typically 10-14mm), a jack or lift stand to raise the truck, and penetrating oil if fasteners are corroded. GW 9139 comes fully assembled; no bearing installation is required. Replacement takes 10-15 minutes per wheel.
Q: What is the maximum load capacity for GW 9139?
A: Load capacity is determined by your Crown GPW truck model and the number of wheels in use, not the wheel itself. GW 9139 is rated for continuous duty on electric pallet jacks up to the truck nameplate capacity. Do not exceed the manufacturers rated lifting or rolling load for your specific truck model.