General answers to frequently asked questions:
Email: help@marinemastertrailers.com
Phone: 931-454-9089 then press 1
Phones are open Mon – Thu, 8am – 430pm central time.
Having the last 5 digits of your trailer VIN often reduces resolution time.
Marine Master Trailer VIN start with 5JU
Although there are some exceptions, VIN and tire information decal is generally applied inside of the trailer’s front siderail. VIN can also be found on documentation like the trailer MSO (Manufacturer’s Statement of Origin), Trailer Invoice, and Trailer Packing Slip.
We are always accepting applications. General career information can be found here.
Marine Master Trailers does not sell trailers retail. Retail customers can contact a dealer using our dealer locator tool OR requesting a quote. Dealers and Boat OEMs may contact Rick VanArsdall via trailerrick@marinemastertrailers.com
The sixth and 7th digit of your VIN should be the length of your trailer to the nearest foot.
Check your VIN decal and subtract the cargo weight from GVWR for approximate trailer weight. EXAMPLE: 4900 lb GVWR and 3770 lb Cargo Weight means a 1130 lb trailer
No. Steps are located on both sides of each fender. GatorHyde coating and/or various fender covers are for aesthetics and debris protection only.
Generally, trailers built 2009 or after use Dexter 091-007-00 brake pads for DB-35 Calipers and 008-435-05 hub and rotors. Generally, trailers built before 2009 with an oil bath system, generally use brake pads for DB-42 Calipers.
1/8 DOT Brake Hose w/ Brass Male 3/16 IF Ends and 3,500 psi
We recommend inflating your trailer tires to the max PSI listed on the tire and when the tire is cold. Over or under inflation will cause unnecessary tire wear.
Image below is a good place to start diagnosis.
We use a wishbone wiring harnesses.
White = Ground
Brown = Running Lights
Yellow = Left Turn and Left Brake
Green = Right Turn and Right Brake
Blue = Backup Lights and Solenoid Lock Out (disengage brakes while in reverse)
More info on the wiring can be found here.
Epoxy Primer + Acrylic Pro Urethane Paint.
Acrylic Enamel.
DupliColor TR250 available at Amazon.com and O’Reilly Auto parts.
Rust-Oleum 7585838 Cold Galvanizing Spray available at Amazon.com and Home Depot.
First, determine what’s making the squeaky noise (e.g. axle springs, ubolts, shackle bolts, bushings, bearings, etc.). If shackle bolts, bushings, or bearings, then tighten or replace hardware. Do not overtighten shackle bolts (see below for torque specs). If axle springs are culprit, jack trailer up to relieve springs, then use chain and cable spray lube. Lithium grease may also help. If the springs are damaged or failing, then replacing springs may be the only remedy.
Monroe 31069. Shocks are available online at RockAuto.com, but shock mounts are factory installed. A comparable non-color matching shock from O’Reilly Auto Parts is MasterPro FD111 (shock mounts not included).
Check respective trailer brake fuse in tow vehicle and replace if necessary. Reversing up an incline can sometimes cause surge brakes to engage.
Use a brake lockout key to temporarily bypass surge brakes on trailer. Do not travel on public roads with a brake lockout key engaged.
Do not pry on any part of the wheel cap. The wheel cap is not pressed or clipped onto the wheel. Although there looks to be eight Allen screw heads on the inner wheel, only two are metal screws and can be unfastened.
2 Allen
Depending on the type of lug nuts, either 3/4″ deep, 3/4″ deep thin wall, or 13/16″ deep socket
Torque steel wheel lug nuts between 85-95 ft/lbs
Torque aluminum wheel lug nuts between 110-120 ft/lbs
Retorque after first 25-50 miles
Generally, 1 1/8″
Generally, 1/2″-20
Generally, 5 x 4.5 for five lug wheels and 6 x 5.5 for six lug wheels.
Leaf spring hanger bolts shall be secured with nyloc-style retaining nuts. Bolts and nuts should be torqued until knurled portion of bolt is seated into bracket/shackle, then backed off ½ turn. Minimum of 3 bolt threads should protrude beyond nyloc-style nut. Springs, equalizers, and shackle straps should be able to pivot freely after installation. Nyloc nuts should not be reused.
55 ft/lbs on standard 9/16 hex bolts with Loctite
25 ft/lbs on 5/8″ banjo bolt
12-14 ft/lbs
25 ft/lbs on 7/16″ caliper bleeder screw
See diagram:
No. Dexter Vault and K2 caps are press fit and one-time use only.
Dexter recommends Dexter Grease for E-Z Lube grease caps.
Dexter recommends Vault grease for Vault hubs.
K2 Mfg recommends Lucas Oil Red-N-Tacky grease for K2 hubs.
55 ft/lbs is initial torque to seat bearings, then loosen until free spinning before final torque. Final torque is 20 in/lbs
Enter the last 5 digits of trailer VIN here and then click on your front, interim, or rear axle accordingly. Before purchasing any parts, please confirm VIN and axle information with Customer Service.
Generally, the trailer is too far in the water which prevents the boat from touching the bunks during loading to lift the bow above the roller. Try loading your boat with the trailer further out of the water.
If the boards are under 108″ we can ship them to you. If they’re over 108″ long then we can send carpet to you but not the board. Sending a carpeted board through a boat manufacture or to a dealer with other boat trailers can be an option at times, but usually such is not ideal for a quick solution.
https://www.ups.com/us/en/support/shipping-support/shipping-dimensions-weight.page