Which Safety Pin Is Good For Small Cargo Trailer? Longer Or Shorter Clip?

Published 05/18/2026

Products Featured in This Question

RV Designer Safety Lock Pin - 1/4" x 3- 1/2"

(6)

$12.33

RV Designer Safety Lock Pin - 1/4" x 2-1/2"

$6.68

Question:

I’m replacing the coupler on my small cargo trailer and want to order a spare safety pin at the same time. Is there any downside to using the longer RD22GR instead of the shorter RD72GR?

asked by: Sheila

Expert Reply:

Hi Sheila! As long as your coupler uses a 1/4" pin hole, the longer RV Designer Safety Lock Pin # RD22GR can work just fine. It has a 3-1/2" usable length, while the RV Designer Safety Lock Pin # RD72GR has a shorter 2-1/2" usable length.

Going with the longer # RD22GR won’t hurt anything; it may just be more pin than you need on a narrower coupler latch. If 2-1/2" of usable length is enough, the # RD72GR will usually be the cleaner fit. If your coupler body or latch area is wider, or you simply want the extra span, the # RD22GR is the better choice.

Sheila, if you already know which coupler you’re installing, measure that latch width before ordering and we can help you pick the better-fitting safety pin. Or if you know what part number you're going with in regard to the coupler, I can check which size is best :).