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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

dimensionvalue
Receiver size2 × 2 in (50.8 mm square)
Hitch classesClass 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 diameter5/8 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 ClasseswebPublisher's page; dimensions are facts
Lippert (CURT)Guide to Hitch Pin SizeswebPublisher'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.

Let your AI pull this. Add 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.
Set it up →

Plain text: sheet.txt · JSON: /api/geometry?object=trailer-hitch-receiver-2-inch

Trailer hitch receiver, 2 in square (SAE J684 classes), isometric render of a generated part
Schematic, not to scale.

Fits with

Questions

What pin fits a 2 in receiver?

A 5/8 in (15.88 mm) pin with at least 3 in usable length.