When identifying an older CURT hitch accessory, check whether it is a receiver extension, an external clamp, or a threaded anti-rattle pin with an internal bracket. A similar-looking metal part may have a different receiver size or require a hollow shank.
Recognize the receiver hardware type
Receiver extender
Moves the accessory rearward. Confirm tongue weight and manufacturer restrictions.
External anti-rattle clamp
Tightens receiver-to-shank clearance but never replaces the secured receiver pin.
Internal bracket and pin
CURT 22323 works only inside a compatible hollow two-inch shank.
Simplified conceptual illustrations, not scaled installation drawings.
Extension capacity and retention matter. An extension moves the load farther from the vehicle and can reduce the permitted tongue weight. The upper outlet on CURT 45792 is for accessories only, never for trailer towing. A clamp is not a hitch pin.
How to identify and match the old component
- Check whether the original adds length behind the bumper or merely tightens a fitted shank.
- Measure the receiver and accessory shank rather than estimating from the hitch class.
- For CURT 45792, note the two stacked outlets; the upper outlet must not be used for towing.
- Identify lever-tightened clamp, wrench-tightened two-nut clamp or the 22323 internal threaded bracket.
- Confirm the hitch pin is secured, the shank construction matches and the entire towing setup stays within its rating.
Compare replacement parts by exact MPN
| Part | Receiver fit | Design | Main use / restriction |
|---|---|---|---|
| 45791 | 2-inch | 8-inch solid-shank receiver extender | 3,500 lb GTW / 350 lb tongue weight; verify any reduction in hitch capacity |
| 45792 | 2-inch | 8-inch dual receiver extender | Lower receiver: 3,500 lb GTW / 350 lb TW; upper receiver is accessories-only, never for towing |
| 22320 | 2½-inch | No-tool anti-rattle clamp | External lever clamp for compatible solid or hollow shanks; still requires secured pin |
| 22325 | 2-inch | No-tool anti-rattle clamp | External lever clamp for compatible solid or hollow shanks; still requires secured pin |
| 22323 | 2-inch hollow shank | Threaded anti-rattle pin and internal bracket | Requires hollow 2-inch accessory shank and ⅝-inch pin hole; unsuitable for solid shanks |
| 45367 | 2-inch | Wrench-tightened anti-rattle clamp | External two-nut clamp; usable with compatible solid or hollow shank; pin required |
Compare the matching product photographs
Check the listing for condition, availability and the manufacturer part number.
Receiver extensions
CURT 45791 — 8-inch solid-shank receiver extenderSingle-opening extender for rear clearance; 3,500 lb GTW / 350 lb tongue weight; verify any reduction in hitch capacityCheck product and availability
CURT 45792 — 8-inch dual receiver extenderTwo vertically stacked receiver openings; Lower receiver: 3,500 lb GTW / 350 lb TW; upper receiver is accessories-only, never for towingCheck product and availability
External anti-rattle clamps
CURT 22320 — No-tool anti-rattle clampLarger hand-lever external clamp; External lever clamp for compatible solid or hollow shanks; still requires secured pinCheck product and availability
CURT 22325 — No-tool anti-rattle clampSmaller two-inch hand-lever clamp; External lever clamp for compatible solid or hollow shanks; still requires secured pinCheck product and availability
CURT 45367 — Wrench-tightened anti-rattle clampTwo-nut external clamp requiring a wrench; External two-nut clamp; usable with compatible solid or hollow shank; pin requiredCheck product and availability
Hollow-shank threaded bracket
CURT 22323 — Threaded anti-rattle pin and internal bracketInternal threaded bracket and grooved hitch pin; Requires hollow 2-inch accessory shank and ⅝-inch pin hole; unsuitable for solid shanksCheck product and availability
UsedRVParts viewing and pickup in Kelowna are by appointment. Check the product listing for condition.