Difference Between Hopkins 7-Way Wiring Kits 40157 and 40167

Updated 10/08/2025 | Published 10/06/2025

Question:

Hello i have a question about two products you have and just wondering what the difference is. Both of them are Hopkins first part number is hm 40157 and the second one is 40167. They look to be the same and I guess I am just wondering what the difference is between the two? Thank you

asked by: Derek J

Expert Reply:

Hey Derek, thanks for reaching out!

The Hopkins Endurance # HM40157 fits a 1999-2001 Ford F-250/F-350 while the Hopkins Endurance # 40167 fits a 2002-2004 Ford F-250/F-350. So it looks like the plugs are the same, but the wiring pinouts are different and that's why they aren't the exact same wiring kit.

For your 2002 F-350 you need the Wiring Kit # 40167.

Are you looking to start towing a gooseneck or 5th wheel trailer?

expert reply by: Jon G

Derek J.

10/8/2025

Ok. I wasnt sure because the price was so different. Thank you for explaining I have been towing a trailer but running the cord over the tailgate to the plug. This looks so much more convenient

Jon G.

10/8/2025

@DerekJ Happy to help out! Yes, the in-bed 7-Way sockets are so much more easier than routing the cord over your tailgate, and it also means you don't have to worry about what's going on back there with it either.