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Trailer hitch receiver, 2 in square (SAE J684 classes)
What are the dimensions of the Trailer hitch receiver, 2 in square? · Modern device · basis: Manufacturer specifications (Lippert (CURT))
Also called: 2 inch hitch receiver, 2 receiver dimensions, 2 hitch pin size, 2 receiver insert, 2 hitch cover 3d print, 2 hitch receiver size mm, hitch class chart, sae j684 receiver, hitch receiver sizes, receptor enganche 2 pulgadas, Anhängerkupplung Aufnahme 2 Zoll
Exact dimensions. True size, with no printing tolerance added.
- length
- 50.8 mm
- width
- 50.8 mm
Notes
- A 2 in receiver takes a 2 in square shank and a 5/8 in hitch pin, per CURT/Lippert's class and pin guides.
- Rated weights depend on the specific hitch; the class figures are the maker's typical ranges.
- No CAD file: the maker publishes only overall sizes, and a plain box or cylinder is not useful design geometry. The table is the published data; parts with real geometry have their own pages.
Trailer hitch receiver, 2 in square size chart
| dimension | value |
|---|---|
| Receiver size | 2 × 2 in (50.8 mm square) |
| Hitch classes | Class 3 (up to 8,000 lb / 800 lb), Class 4 (up to 10,000 lb / 1,000 lb), Class 5 XD (16,000–17,000 lb) |
| Hitch pin diameter | 5/8 in (15.88 mm) |
| Minimum usable pin length (excl. handle) | 3 in (76.2 mm) |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Lippert (CURT) | A Beginner's Guide to Hitch Classes | web | Publisher's page; dimensions are facts |
| Lippert (CURT) | Guide to Hitch Pin Sizes | web | Publisher's page; dimensions are facts |
Xem scan
File coming
No downloadable true-size file yet: the published figures do not fix the whole shape, and Xem never guesses a number. A measured scan is planned; request it and it moves up.
https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=trailer-hitch-receiver-2-inch
Questions
What pin fits a 2 in receiver?
A 5/8 in (15.88 mm) pin with at least 3 in usable length.



