Replacement for a Marine Master Boat Trailer Axle
Updated 05/27/2025 | Published 11/29/2018 >
Question:
Will this axle properly replace my marine master boat trailer axle?
asked by: Matt
Expert Reply:
In order to determine whether or not the Dexter Trailer Axle Beam with 4" Drop part # 7685269 will be a good replacement for your Marine Master Boat Trailer Axle we would need to know the distance between the hub faces and spring centers on the axle you have now. It would also be helpful to know your axles weight capacity.
The Dexter Trailer Axle Beam with 4" Drop has a 3,500 lb capacity, 95" hub face to hub face, and a 80" spring center to spring center measurement. If this is what you have now then great this will be an exact replacement but if not please let me know what you have and I would be glad to see if we have any other options for you.
I have attached a photo which shows how to measure the hub faces and spring centers.

Product Page this Question was Asked From
Dexter Trailer Axle Beam with 4" Drop E-Z Lube Spindles - 95" Long - 3,500 lbs
- Trailer Axles
- Leaf Spring Suspension
- Standard Grade
- No Hubs
- 3500 lbs
- Spindles Only
- 80 Inch Spring Center
- 95 Inch Hub Face
- Drop - 4 Inch
- Dexter
more information >
Continue Researching
- Video: Measuring To Choose The Right Trailer Axle
- Shop: Easy Grease Trailer Idler Hub Assembly for 3.5K Axles - 5 on 4-1/2 - Pre-Greased
- Shop: Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs
- Shop: Hub Bearing Kit for Lippert, Dexter, and AL-KO Axles - 3,500 lb with #84 Spindle
- Shop: 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 26" Long
- Shop: Bearing Buddy Bearing Protectors - Model 1980A-SS w/ Auto Check - Stainless Steel (Pair)
- Shop: CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc
- Search Results: surge brake lines
- Shop: Easy Grease Trailer Hub and Drum Assembly for 3.5K Axles - 10" - 5 on 4-1/2 - Pre-Greased
- Search Results: trailer wiring
- Search Results: bearing buddy trailer bearings races seals caps
- Q&A: Will a 4000-LB Leaf Spring Fit on a 3500-LB Axle
- Q&A: Can Oil Bath Hubs be Converted to Grease Hubs
- Search Results: akfbbrk~35~d
- Video: Dexter DX7.5L A-60 Brake Actuator Review
- Article: Wiring Trailer Lights with a 5-Way Plug (It's Easier Than You Think)
- Video: Feature Review LubriMatic LMX Industrial Strength Grease
- Q&A: Correct Bearing Buddies for 3.5K Trailer Hub and Drum Assembly 10 Diameter 5 on 4-1/2 Pre-Greased
- Q&A: Replacement Equalizers and Wet Bolt Kit For a Tandem Axle Utility Trailer
- Video: Comprehensive Review: Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers
- Video: Trailer Axle with Idler Hubs Spec Review
- Search Results: tandem equalizer
- Search Results: standard equalizer trailer suspension parts
- Search Results: bb1980a
- Q&A: Does it Matter Which Way a Double-Eye Trailer Leaf Spring Faces
- Video: Spindle Grease Seal Set for L44643 Inner Bearing and 1.980 Bearing Buddy Spec Review
- Video: Dexter Heavy Duty Suspension Upgrade Kit for Single Axle Trailers Review
- Q&A: Replacement Disc Brake Hub and Rotor Assembly For a 2014 Marine Master Boat Trailer
- Q&A: How To Determine Which Replacement Standard Hubs Will Fit Marine Master Trailer with Vault Hubs
- Article: 5 Tell-Tale Signs It’s Time to Replace Your Trailer’s Leaf Springs
Terry D.
5/24/2025
Do the brackets for shock absorber , come on the axle ?The one in picture looks like it . Will confirm by measuring . Axle ware rings , with hole in them ,have emailed picture.