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 $ 83.64
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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 47 reviews
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

Matt M. (Plainwell, US)
Rotor hub

Great fit and customer service

Donovan M. (Minden, US)
Hub with disc brakes

I bought this to replace damaged hub for boat trailer with surge brakes. Shipped fairly quickly and everything fit as it should. Races for bearings were already pressed into rotor which I didn't expect so it saved me some time. Overall I'm happy with service and would use them again.

randy m. (Miami, US)
Pacific Boat Trailers is Awesome

Definitely happy to have called Pacific Trailers. I was quoted a price of 1,500.00 for trailer modifications as Ranger is no longer selling boat trailer parts. You customer service was awesome and your knowledge of trailers and helping out with what I needed was fantastic. Will continue to support Pacific boat Trailers in the future.

JULIO E.L. (Orlando, US)


paul r. (Kansas City, US)
As expected

Item came in a day early and was as expected. Great customer service folks. I will certainly be using them for as many purchases as needed at my shop.

Dogfish (Ballico, US)
Great service

Great service, reasonable prices and fast shipping. Highly recommend

J R. (Tulsa, US)
Spare hub

Exactly what I needed for a spare hub. Excellent customer service!