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Solution for Needing 12.5k Straight Coupler with Collar Lock  

Updated 10/27/2025 | Published 03/08/2025

Question:

I need a straight coupler, 2 5/16” ball, 2 1/2” channel, 12,500lb, with a collar lok, slide lock or sleeve lock. What part number fits these conditions? Thank you

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Expert Reply:

Hey Craig, I have a solution for you but the 2-1/2 inch wide channel couplers don't have the capacity you need. You'd have to go with a 3 inch wide frame coupler like the part # BD028462 as this is for your ball size, is a collar lok, and has a 12,500 lb capacity.

You'd need to have spacers added to your frame so this would fit properly. Since this is a weld on coupler having spacers welded on shouldn't be too bad.

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Jameson C
Jameson C. profile picture
Etrailer Expert

Jameson C.

10/27/2025

Hey Craig, how did things go with the Bulldog Collar-Lok coupler and the spacer setup on your frame? Your results could really help others trying to match a 2-5/16" ball with a higher-capacity coupler.

Craig F. profile picture

Craig F.

10/27/2025

@JamesonCeverything worked great. Added the spacers and everything is snug. Thanks for the help!
Jameson C. profile picture
Etrailer Expert

Jameson C.

10/27/2025

@CraigF Glad I could help!

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