UFP Unique Functional Products

Trailer Disc Brake Rotor, UFP DB-35 - 9.75" Zinc Plated 5 on 4.5"- 3.7K #41019

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  • Regular price $ 90.89
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Trailer Buddy Model DB-35 Disc Brake Hub/Rotor 9 3/4" Diameter - HVR-1377-5S. #41019

The Trailer Buddy Disc brake hub-and-rotor features a ventilated design to allow heat to escape.  Cast iron construction with a UFP exclusive Zinc Plated Plus finish is ideal for marine applications.  This rotor will fit trailer axles with up to a 3750lb. capacity and 13" to 15" wheels.  When used in saltwater, rotors should be flushed out with fresh water to extend rotor life.

  • Manufactured from cast iron
    • Superior wear characteristics at high temperatures compared to other types of steel
  • UFP exclusive, Zinc Plated Plus finish for excellent corrosion resistance
  • Races included (bearings, races, and seals sold separately)
  • Fits axles with up to a 3750lb. capacity and 13" to 15" wheels
    • 3750lb. per pair capacity for 1 trailer axle
  • 9 3/4" Rotor Diameter
  • 1/2" wheel stud bolts with a 5 on 4.5" pattern
  • 5-year limited warranty
Bearing, Race, and Seal Information:
  • Bearings (sold separately), Inner bearing: L68149, Outer bearing: L44649
  • Races (included), Inner race: L68111, Outer race: L44610
  • Seal: (sold separately), Inner diameter: 1.68", Outer diameter: 2.565"
  • Spindle Size: 1 3/8" x 1 1/16" Tapered
HVR-1377-5S 41019 UFP Zinc Plated Disc Brake Trailer Hub/Rotor for Model DB-35 Trailer Buddy Disc Brakes
Standard and most common UFP Rotor.  Use with standard grease and the VAULT bearing lubrication system.
  • Rotor Diameter: 9.75"
  • Rotor Thickness: 0.75"
  • Bearing Size: L68149 Inner and L44649 Outer Bearings
  • Seal: 168255
  • Hub Bore: 1.980
  • Spindle Size: 1 3/8" x 1 1/16" tapered spindle
  • Lug Pattern: 5 on 4.5", 1/2" diameter wheel studs

Customer Reviews

Based on 55 reviews
MARK J. (Navarre, US)
It's a rotor.

It's still in the box. Haven't had a chance to install it yet. It looks good so far as I can tell. Probably order three more.

Leslie L.P. (Longview, US)
Rotor ,brake pads ,bearings ,seals and grease

Received parts in excellent shape as you took extra care to package it . Very good parts woman , very professional , knowledgeable and had very good customer service skills . A asset to your company

Brian W. (Louisville, US)
Trailer needed a little work

Parts came in and looked good out of the box. The bearings fit correctly and installed easily.
I like that the races were already in the rotor, just one less step for me. Overall, very satisfied
with the purchase hopefully they will last a good amount of time and offer good performance.

Terry W. (Robert Lee, US)
Awesome service

Have ordered from them 3 times and great service every time

Charles P.

Perfect fit perfect price perfect time delivery

John M. (Atlanta, US)
Ranger biat trailer hub

Exactly what I needed at a fair price!

MARK K. (Conroe, US)


dave k. (Camarillo, US)


TERRY H. (Seattle, US)
Job is done and rolling. Daughters family is happy

All good, kids are happy

JIT M.M. (Concord, US)
UFP DB-35 rotor

These work extremely well for fresh water boats. Most ski/wake boats use these for their disc brakes since now DEXTER AXLE owns all of the boat trailer manufactures from KODIAK to UFP to tie down demco and Titian is all owned by dexter. It’s really sad that they all sold out and now the stuff is made over seas, only time will find out if they are worth it