# CURT 40072 trailer ball (1-7/8 in ball, 1 × 3 in shank, 3,500 lb)

> What are the dimensions of the CURT 40072 trailer ball?

- Category: Tools & garage › Trailer balls
- Kind: Modern device
- Basis: Manufacturer specifications (Lippert (CURT))
- Page: https://xemstudio.com/objects/curt-trailer-ball-40072/ · JSON: https://xemstudio.com/api/geometry?object=curt-trailer-ball-40072 · Plain text: https://xemstudio.com/objects/curt-trailer-ball-40072/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width |
|---|---|
| 47.62 | 47.62 |

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- CURT part 40072 is a 1-7/8 in trailer ball on a 1 in diameter × 3 in long shank, rated 3,500 lb GTW.
- Ball and shank sizes are from the product title; rise, flat size and thread are not published.
- Ball-mount hole must match the shank diameter; shank length must cover the mount thickness plus washer and nut.
- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.

## Sizes

| dimension | value |
|---|---|
| Ball diameter | 1 7/8 in (47.62 mm) |
| Shank diameter | 1 in (25.4 mm) |
| Shank length | 3 in (76.2 mm) |
| Gross trailer weight rating | 3,500 lb |
| Finish | Chrome |
| Part number | 40072 |

## Where the files are

- Lippert (CURT): [CURT 1-7/8" Trailer Ball (1" x 3" Shank, 3,500 lbs.) #40072](https://www.lippert.com/curt-1875in-trailer-ball-1in-x-3in-shank-3500-lbs-chrome-packaged-40072-2020103183) — web — Publisher's page; dimensions are facts

## Free STEP/STL (2 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/curt-trailer-ball-40072/index.json

- curt-trailer-ball-40072-ball: [STEP](https://xemstudio.com/files/hardware/curt-trailer-ball-40072/curt-trailer-ball-40072-ball.step) · [STL](https://xemstudio.com/files/hardware/curt-trailer-ball-40072/curt-trailer-ball-40072-ball.stl) — Ball Ø47.62 mm
- curt-trailer-ball-40072-shank: [STEP](https://xemstudio.com/files/hardware/curt-trailer-ball-40072/curt-trailer-ball-40072-shank.step) · [STL](https://xemstudio.com/files/hardware/curt-trailer-ball-40072/curt-trailer-ball-40072-shank.stl) — Shank Ø25.4 × 76.2 mm (collar, rise and thread not published, not modelled)

## Questions

**What size is CURT trailer ball 40072?**

1-7/8 in ball (47.62 mm), 1 in × 3 in shank (25.4 mm × 76.2 mm), 3,500 lb.

## Fits with

- [CURT 40015 trailer ball (1-7/8 in ball, 3/4 × 2-1/8 in shank, 2,000 lb)](https://xemstudio.com/objects/curt-trailer-ball-40015/)
- [CURT 40161 trailer ball (1-7/8 in ball, 3/4 × 1-5/8 in shank, 2,000 lb)](https://xemstudio.com/objects/curt-trailer-ball-40161/)
- [CURT 40002 trailer ball (1-7/8 in ball, 1 × 2-1/8 in shank, 3,500 lb)](https://xemstudio.com/objects/curt-trailer-ball-40002/)
- [CURT 40003 trailer ball (2 in ball, 3/4 × 1-3/4 in shank, 3,500 lb)](https://xemstudio.com/objects/curt-trailer-ball-40003/)