Only the Best for Bloomer Trailers means that, with the proper care and operation, these trailers truly stand the test of time – and maintain resale value better than any other brand.


  • Horse trailers. Industry-leading 10-year structural warranty.
  • Stock trailers. Standard 3-year warranty
  • Cargo trailers. Standard 2-year warranty.

General Maintenance

  • Apply grease as needed to your vehicle gooseneck ball. This will help your trailer ride smoothly at the gooseneck ball connection and help prevent premature wear or damage to the trailer coupler.
  • Check the coupler adjustment pin and set bolts. Ensure they are tight and in good condition.
  • Clean beneath the floor mats. After long trips and before storing the trailer for an extended amount of time, pull out the rubber floor mats and clean the trailer floor in the horse compartment. This is necessary to maintain the integrity of the floorboards and structure. You can extend the time between cleanings by using shavings.
  • Check the seal around the doors and windows. Ensure no water is entering your trailer.
  • Check the sealant on top of your trailer roof. Areas to look at include the perimeter of the roof and around any object that is penetrating the roof skin. Like in your home, these seals and sealants need to be checked often.

Brake and Tire Maintenance

  • Check your brakes before every trip. Ensure the brakes on your trailer are working properly by listening for the electric/hydraulic actuator to make a loud humming sound while applying brakes.
  • Visually check for brake fluid leaks. Ensure there is no brake fluid leaking from the brake lines, fittings or brake calipers, and check the fluid level in the electric/hydraulic actuator.
  • Check brake pads and bearings every 12,000 miles and replace if needed. If you use your trailer in high traffic areas or on steep inclines where brakes are applied more frequently – or if the gain on your brake controller is set at a higher position – check your brake pads more often.
  • Don’t let your trailer sit unused for more than a few weeks. The axle bearings we use are packed in grease from our supplier. After a few weeks not in use, that grease will settle in the bottom of the bearings, developing flat spots on the non-greased portion of the bearings. This causes them to wear out faster or freeze up, which can lead to running a wheel off and damaging the brake components and axle spindle, which will in turn require you to replace the entire axle.
  • Make sure your tires are in good condition before each trip. Correct air pressure is critical to making your tires last. Check them before each trip and adjust them as needed. For every 5 PSI the tire falls under the recommended tire pressure, that tire loses 500 lbs of carrying capacity, which can result in excessive wear and tire failure. (During your trip, there is no need to adjust your air pressure, as the tires are designed to withstand the natural temperature changes caused during driving.) Excess speeds can also reduce the carrying capacity of your tires. See chart below.


Tandem axles

GOODYEAR 235/85R 16 3750 110 PSI 99 MPH
CONTINENTAL 215/75R 17.5 4805 125 PSI 75 MPH
CONTINENTAL 245/70R 17.5 6005 125 PSI 75 MPH
CONTINENTAL 265/70R 19.5 5510 115 PSI 81 MPH

If your trailer tires are underinflated and you’re traveling at speeds over posted limits, you are more likely to have bad tire wear or, even worse, a tire blow out.

Frequently Asked Questions

Why am I getting unusual wear on my tires/brakes/bearings, even though I do the recommended service on my brakes and bearings, ensure my tire pressure is correct before each trip, and drive at posted speed limits?

This could be a problem resulting from coupler height. Coupler height determines whether the trailer is riding level – if it isn’t, one of the axles with its bearings, brakes and tires will be carrying more weight than they are designed and rated for. Adjusting coupler height and/or blocking axles will help correct this.

How is my Bloomer Trailer wired and what color wires go where?

Bloomer Trailers uses the following wire color code with a 7-way plug.

  • Red wire – hot wire (12 volts)
  • Green wire – right turn signal
  • Black wire – brake wire
  • White wire – ground wire
  • Yellow wire – left turn signal
  • Brown wire – tail marker/ running lights
  • Blue wire – optional additional hot wire located on the center pin. This is used when your vehicle has two hot wires.

See wiring diagram for location and purpose of each wire:

View diagram

How do I troubleshoot an issue with my brakes?

If your Bloomer Trailer is equipped with electric/hydraulic disc brakes, there are a few common reasons they might not be working.

Issue: No power at the 1 o’clock position on the vehicle 7-way plug. This position on the vehicle 7-way plug must have 12 volts for the electric/hydraulic actuator to work.


  • Check for a bad fuse on the vehicle designated for the trailer charge/hotwire.
  • Check to see if there is a charge/hot wire installed.
  • Check for a good connection between the vehicle and trailer 7-way connection.

Issue: No power at the 5 o’clock position on the vehicle 7-way plug when the brakes are applied.


  • Check for a bad fuse on the vehicle designated for the trailer brakes.
  • Check your vehicle manual to verify that its factory-built brake controller is compatible with electric/hydraulic disc brake systems. You may need to have an aftermarket brake controller installed.

Issue: Low/no fluid in the trailer brake actuator.


  • Inspect hydraulic brake line on trailer for leaks.
  • Inspect brake calipers for leaks.
  • Check the fluid in the electric/hydraulic actuator often.

Can Bloomer Trailers sell directly to me?

Bloomer Trailer Mfg., Inc. does not sell directly to the consumer. As a manufacturer we sell directly to Dealers. Please feel free to reach out to any Dealership listed to design the trailer of your dreams.