Replacement Disc Brake Kit for a Myco Boat Trailer w/a 6 on 5-1/2 Lug Nut Pattern

Updated 02/12/2026 | Published 02/08/2026

Products Featured in This Question

DeeMaxx Disc Brakes - 12" Hub/Rotor - 6 on 5-1/2 - Maxx Coat/Stainless - 6K

(57)

$860.98

Replacement Trailer Hub Bearing - 15123

(2119)

$11.70

Replacement Trailer Hub Bearing - 25580

(2119)

$17.39

4" Carbon Fiber Digital Caliper

(26)

$11.55

Question:

I have a 2006 Myco trailer pulling a 38 foot Formula offshore powerboat. Boat and trailer about 12,500. The boat has DeeMaxx 6 lug now. Would these DE58YR work on my trailer? It appears the DE58YR are a complete set and include everything disc, hubs, races, bearings, and for a complete swap of what I currently have, is that correct. I have 2 disc axles and one axel just holds wheels.

asked by: Kenny

Brake Caliper
(click to enlarge)

Disc Brake Hub
(click to enlarge)

Expert Reply:

Hey Kenny, thanks for the pictures. The DeeMaxx Disc Brakes item # DE58YR do come with everything you need to swap out an existing disc brake setup but I do not have anyway of knowing what size spindles your boat trailer currently has to confirm it'll fit.

What you'll need to do is pull one of your hubs and check the part numbers stamped into the sides of the inner and outer bearing. This will tell me what size spindle your trailer has. The DeeMaxx Disc Brakes item # DE58YR uses an inner bearing item # 25580 and a outer bearing item # 15123.

If they do not have numbers stamped into the sides of your bearings, you'll need to measure your spindles using a digital caliper like item # PTW80157. I'll need the C and D dimensions shown in the diagram below.

You can add this information, along with any other questions you have, where it says Add Comment.

expert reply by: Jerred H

Spindle Measurement Diagram
(click to enlarge)

Kenny

2/11/2026

Thank you Jerred, thank you for your response. My trailer is currently shrink-wrapped but I contacted Myco and I received a spec sheet from the original build in 2006. I can e-mail that to you if you can give me a correct e-mail address. However it does list the inner bearing as #25580 however, the outer bearing number from my spec sheet says #LM67048 could that be correct? /Users/kennethwithrow/Desktop/IMG_0193.jpeg

Jerred H.

2/12/2026

@Kenny You're welcome! Thank you so much for getting that information. Both the item # LM67048 and item # 15123 outer bearings have the same 1.250" inner diameter, which means the DeeMaxx Disc Brakes item # DE58YR are exactly what you need. These are sold as a pair so you'll need two sets.