Product Description
The HY 4077399 is a factory-spec polyurethane load wheel assembly engineered for Hyster electric lift trucks. This direct replacement wheel features a polyurethane tread (95A–97A Shore hardness) bonded to a steel core with sealed bearings and integrated string guards. The durable design with riser support provides reliable performance in demanding material handling operations. Cross-reference part numbers include 4081635, 4151465, 2790398, 2790052, and others for interchangeability verification.
Specifications
Material & Construction
| Core Material | Steel |
| Wheel Tread | Polyurethane (95A–97A Shore) |
| Finish | Machined steel core with molded polyurethane tread |
| Sealed Bearings | Yes |
| String Guards | Yes |
| Riser | Yes |
Dimensions
Part Numbers
| Part Number | HY 4077399 |
| Alternate Part Number | HY4077399 |
| Cross-Reference Part Numbers | 4081635, 4151465, 2790398, 2790052, 3161067, S01803220011, 4222701, S01145840040, 2793095 |
| Supersedes | 4081635 |
| Equivalent Part Numbers | HY 4077399-XL, 310700-203-KIT |
Frequently Asked Questions
Q: What are the dimensions of the HY 4077399 polyurethane load wheel?
A: Verify these dimensions against your lift truck's mast assembly specification to confirm fitment before ordering.
Q: Which Hyster electric lift truck models use the 4077399 load wheel assembly?
A: The HY 4077399 is a direct replacement load wheel for Hyster electric lift trucks. Consult your equipment documentation or Hyster parts catalogs to confirm model compatibility for your specific machine.
Q: What materials are used in the HY 4077399 load wheel assembly?
A: The HY 4077399 features a polyurethane wheel tread (95A–97A Shore hardness) bonded to a steel core with sealed bearings. This construction provides durability while protecting bearings from contamination and debris.
Q: What are the cross-reference part numbers for the 4077399?
A: Cross-reference numbers include 4081635, 4151465, 2790398, 2790052, 3161067, S01803220011, 4222701, S01145840040, and 2793095. The 4077399 supersedes part 4081635. Always verify interchangeability before substituting parts.
Q: How long do polyurethane load wheels typically last?
A: Polyurethane wheel lifespan depends on duty cycle, load weight, floor conditions, and maintenance practices. Replace wheels when polyurethane shows visible wear, cracking, or deterioration that may affect load capacity or alignment.
Q: What is the difference between the HY 4077399 and 4081635?
A: The HY 4077399 is the current direct replacement for the 4081635.
Q: Are sealed bearings better than standard bearings for load wheels?
A: Yes, sealed bearings protect against dirt, debris, and moisture contamination, extending wheel life and reducing maintenance frequency. This makes them ideal for busy warehouse and dock environments.
Q: Can the HY 4077399 be used in cold storage environments?
A: Standard polyurethane wheels may become brittle in extreme cold. For cold storage applications, consult Hyster or parts distributors about specialized polyurethane compounds or alternative wheel materials designed for low-temperature use.
