Description
CURT 45310 has a 1-1/4-inch ball hole on a Class 4 steel mount with a fixed two-inch drop or one-inch rise. The hollow 9-3/8-inch shank fits a two-inch receiver. Listed limits are 10,000 pounds gross trailer weight and 1,000 pounds tongue weight. The ball and pin are separate. Use the rating for the mounting orientation and the lowest-rated towing component.
CURT 45310 installation and rating details: This Class 4 ball mount fits a 2-inch square receiver and uses a 9-3/8-inch hollow steel shank. It provides a 2-inch drop or 1-inch rise with a 1-1/4-inch trailer-ball hole. Unlike Class 3 mounts with a 1-inch ball hole, this Class 4 version requires a trailer-ball shank sized for its 1-1/4-inch opening. Never exceed the lowest-rated towing component.
Specifications
| Brand | CURT |
| Manufacturer Part Number | 45310 |
| Gross Trailer Weight | 10000 lb |
| Tongue Weight | 1000 lb |
| Rise | 1 in |
| Hitch Ball Count | Without Hitch Ball |
| Hitch Ball Size | Without Hitch Ball |
| Color/ Finish | Black Powder Coated |
| Material | Steel |
| With Hitch Pin | No |
| Shank Type | Hollow |
| Swivels | No |
| Hitch Ball Hole Size | 1-1/4 in |
| Manufacturer Product Name | Class 4 Ball Mount (2" Shank, 10,000 lbs., 2" Drop, 9-3/8" Long) |
Dimensions
| Receiver Size | 2 in |
| Drop | 2 in |
| Shank Length | 9-3/8 in |
| Adjustable Ball Height | No |
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