Picking Out Replacement Actuator Shock for Gabriel MPD 85746

Question

Question:

have a boat trailer surge brake with a Gabriel mpd 85746 shock on it. is there a replacement shock I can use ? I can not find one on the internet

asked by: Tim

0

Expert Reply:

The best recommendation I can give you since we don't carry the Gabriel actuators would be to check out the link I attached that will take you to a page that has all of the actuator shocks we carry. On the product pages for each there will be dimensions for each that you can compare to the shock you are trying to replace.

You'll want to know the hole center to center dimensions when retracted and extended. If you can get me the brand or style of actuator you help that might help me find what you are looking for as well.

expert reply by: Jameson C

0

Erick

6/20/2025

Was there any resolution to this? I am looking for the same item

Jameson C.

6/23/2025

@Erick We never heard back. If you can get me the dimensions of what you need though maybe we have something that would work.

Patrick

7/5/2025

@JamesonC Bore; 1-5/8" Collapsed Length (in) 12.34 Extended Length (in) 19.88

Jameson C.

7/7/2025

@Patrick this is for a actuator shock? That's quite a bit of movement if so. Is there a brand or any other info you can see on the actuator?

See All (7) Replies to Erick ∨

Ted

9/19/2025

I have same problem with a Gabriel 610663. I don’t see the link to the product page with dimensions you mentioned.

Jameson C.

9/22/2025

@Ted Are you possibly looking for the Gabriel 61663 as that's a number I can find from Gabriel?

Answer 1

Unfortunately the Atwood 85736 cannot be replaced so you'd actually need an entirely new actuator. The closest replacement we have is the Demco Hydraulic Brake Actuator #DM72VR. This actuator has a gross towing weight capacity of 7,000-lbs, a…

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Answer 2

I do have an option for you but the coupler on your trailer is very old and we simply don't carry parts for them anymore as they were discontinued by the manufacturer. Therefore, the only option we can offer is a new coupler, the Demco Hydraulic…

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Answer 3

Your best route is to replace your entire surge brake assembly as Atwood no longer produces any parts for their brake actuators. The Titan Zinc-Plated Brake Actuator #T47457207K is going to be your best replacement available. It is specific to disc…

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Answer 4

I went out to the warehouse and measured the thickness of the 12" x 2" Hydraulic Trailer Brake Shoe and Lining #BP04-160 that you mention, and measured: -6.16 MM for the inner thickness, & -8.10 MM for the brake lining thickness. I have…

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Answer 5

The Demco Hydraulic Trailer Brake Actuator part #DM72VR should be a direct replacement for the Atwood 61101 Brake Actuator that you have now. This newest updated it rated at 7K instead of 6K. This is a bolt on option that mounts on 3" centers.…

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Answer 6

I really like the Dutton-Lainson Covered Hand Winch #DL17048 for your 2003 Ranger 205 boat because it's covered to it looks more sleek, and it has a 1,900 lb weight rating which means it can easily handle the weight of your trailer even if you…

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Answer 7

I reached out to Dexter and found that the UFP-HD-1877-10 fits a standard 3,500 lb axle. For a hub and drum replacement you can use the #AKHD-545-35-EZ-K or for a galvanized option #AKHD-545-35-G-EZ-K. Then for hydraulic drum brakes you can use the…

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Answer 8

Based off the VIN we don't have a way to look that up as we don't have access to that. What is your axle capacity and what is your wheel bolt pattern? If you can get me that I can help.

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Answer 9

Uni servo and duo servo is basically the style of wheel cylinder. It basically puts pressure on either side of the cylinder. The styles are interchangeable so if you have one style over the other you can go with either style. As long as your drum…

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Answer 10

Hey Dustin, thanks for reaching out! The only surefire way to know if your brakes are free backing or not is to hook your trailer up to your vehicle and back up. If your trailer tires lock up then you have standard hydraulic brakes and need the kit…

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Answer 11

I do have a solution for you, but the Demco Hydraulic Brake Actuator #DM8101802 is made to fit the more common 3" wide trailer tongues, so the mounting bracket won't work with your 4" trailer tongue. Instead, I recommend the Demco…

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Answer 12

The wiring of the Replacement Solenoid Valve #T4748800 is ran to the reverse light circuit of the trailer's wiring connector. Basically one wire will get run to the reverse light circuit and the other wire will get grounded on the trailer frame.…

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Picking Out Replacement Actuator Shock for Gabriel MPD 85746

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