A CURT weld-on hitch can be a center section by itself, a three-piece hitch with loose side plates, or simply a reinforcement collar. Those are different purchases. Identify the MPN, receiver opening, frame width and drop before replacing a damaged or missing assembly.
Recognize what is included
15901, 15923, 15924 and 15926 supply a main receiver body with detached side plates for fitting and welding to the approved frame.
15920 and 15921 provide a 44-inch receiver center section. They do not include the necessary side plates.
49770 is raw steel for welding around a 2-inch square receiver tube; it is not a stand-alone towing hitch.
CURT MPN, receiver and frame-width identification
The ratings shown describe manufacturer-listed components, not an approved capacity for every installed vehicle.
| MPN | Supplied part | Receiver | Frame / span | Drop | Manufacturer rating reference |
|---|---|---|---|---|---|
| 15901 | Weld-on hitch with detached side plates | 2 in | 18–43 in | 3-1/8 in | 15,000 lb GTW / 1,500 lb TW |
| 15920 | Center section only; no side plates | 2 in | 44 in center section | Depends on separately selected side plates | 16,000 lb rated center section |
| 15921 | Center section only; no side plates | 2-1/2 in | 44 in center section | Depends on separately selected side plates | 16,000 lb rated center section |
| 15923 | Weld-on hitch with detached side plates | 2-1/2 in | Up to 44 in | 9 in | Up to 20,000 lb GTW |
| 15924 | Weld-on hitch with detached side plates | 2-1/2 in | Up to 44 in | 18 in | Up to 20,000 lb GTW |
| 15926 | Weld-on hitch with detached side plates | 2-1/2 in | Up to 62 in | 18 in | 20,000 lb GTW / 2,000 lb TW |
| 49770 | Receiver reinforcement collar only | 2 in | Not a frame-spanning hitch | Not applicable | No standalone towing rating |
Inspect the frame before replacing a hitch
Compare frame spread, receiver position and bracket dimensions, and inspect for cracked welds, deformation or corrosion. A center-only replacement requires separately approved plates and fabrication. Any damaged structural installation should be inspected by a qualified professional.
CURT specifies that 15923 needs side plates welded no more than 42 inches apart to achieve the 20,000-lb rating. Other hitch and vehicle constraints may reduce permissible towing weight. CURT also advises against its weld-on hitches for electric-vehicle applications.
Verify the vehicle manufacturer's permitted towing capacity, trailer tongue load, approved frame modifications and any applicable roadworthiness requirements before use.
Match the exact CURT part number
Open the original MPN for current listing details and availability.
CURT 15901
Adjustable three-piece weld-on hitch for approved frame dimensions; the side plates must be welded.
Check part listing and availability
CURT 15920
A 44-inch center crossmember and 2-inch receiver opening; side plates are not supplied.
Check part listing and availability
CURT 15921
Uses a 2-1/2-inch receiver opening and does not include side plates.
Check part listing and availability
CURT 15923
To obtain CURT's 20,000-lb rating, side plates must be welded no more than 42 inches apart.
Check part listing and availability
CURT 15924
18-inch-drop configuration for selected truck or service-body frames up to 44 inches wide.
Check part listing and availability
CURT 15926
Wider-frame 18-inch-drop configuration; verify frame construction and manufacturer installation requirements.
Check part listing and availability
CURT 49770
Raw-steel weld-on collar for a standard 2 × 2-inch receiver tube; not a complete hitch.
Check part listing and availabilityRelated receiver-pin identification
UsedRVParts viewing and pickup in Kelowna are by appointment.