What is the Spacing Between the Large Holes on the Dexter Zinc-Plated Brake Actuator?

Updated 01/27/2026 | Published 01/21/2026

Question:

what are the bolt holes spacing on the dexter surge brake actuator T4079200 of the bigger holes

asked by: Jared H

Expert Reply:

Hello again Jared,

We didn't have that measurement listed anywhere, so I tool a stroll out to the warehouse. The spacing between the large holes on the Dexter Zinc-Plated Brake Actuator # T4079200 is 5". I attached an image for reference.

Still on the search for the right surge brake actuator? Is this going on a boat trailer, trying to get it done before nice weather?

expert reply by: Kate F

Measurement on Dexter Zinc-Plated Brake Actuator
(click to enlarge)

Jared H.

1/22/2026

Yes we had a Atwood 83010 before and it had 3 holes and from the front to the back of it was 6 inches so my dad will have ti drill out one of the holes for the 3rd hole

Jared H.

1/22/2026

What’s the overall length of the actuator from the lip of the coupler to the back of the actuator how many inches is that

Kate F.

1/26/2026

@JaredH I am sorry but I will have to get that measurement for you on Tuesday. We got quite a bit of snow here in Missouri, so I am not working in the office at the moment.

Jared H.

1/26/2026

@KateF no worries whenever you can that would be awesome

Kate F.

1/27/2026

@JaredH I made it in today, woohoo! The overall from the end of the lip to the very far end where the fluid goes in is 24 1/2". From the lip to the end of the mounting bracket is 19 1/4". I know you just asked for the one, but thought I would throw in the other measurement for good measure..... pun intended of course! If you need any other measurements, just say the word.