3500 lb Electric Brake Trailer Axle (3.5K) – Dexter Compatible

(10 customer reviews)


Upgrade your trailer with our versatile 3,500 lb Trailer Axle, available in beam-only, idler, and electric brake options to match your specific towing requirements. Whether it’s for a utility, boat, RV, or cargo trailer, our axle offers durability and ease of installation. Choose the idler axle for simple setups, the beam-only for custom builds, or the electric brake axle for maximum safety and control. Rely on Mrovi Trailer Parts for quick, efficient delivery and top-quality trailer components.


  • 3,500 lbs Trailer Axle (3.5K Capacity)
  • 5 Lug
  • Tube: 2 3/8″
  • This axle is not ABS compatible

Please reference our Min/Max Chart Below for sizing restrictions.


Earn up to 7,990 Points.



Comprehensive Guide to the 3500 lb Electric Brake Trailer Axle

Elevate Your Trailer’s Performance with the 3500 lb Electric Brake Trailer Axle

Upgrade your trailer with the 3500 lb Electric Brake Trailer Axle from Mrovi Trailer Parts. This axle is meticulously engineered for light-duty trailers, enhancing both safety and functionality. Whether you’re towing a utility, boat, ATV, or cargo trailer, this axle ensures that your valuable cargo reaches its destination safely.

Detailed Specifications and Robust Features

Capacity: 3500 lbs

Lug Pattern: 5 lug

Tube Size: 2 3/8” diameter

Brake System: Electric brakes for enhanced stopping power

Design: Features a standard 4” drop for a lower ride height

3500 lb Electric Brake Trailer Axle Features:

  • Axles come fully assembled
    • Packed with High-Temp Axle Grease
  • Underslung – Axle is welded with spring seats on the bottom
    • Allows for lower ride height
    • For optimal usage, use with double eye springs
  • Easy to Lube Design
    • Removable rubber plug on the hub cap with easy access to a grease-able zerk fitting
    • Grease your axle without pulling off your whole entire hub
  • High Strength Straight Steel Axle Tube Construction to ensure
    • A better and smoother highway experience
  • Trailer Axle Design for use on Light Duty Trailers
    • Utility Trailer Axle, Boat Trailer Axle, Car Haulers Trailer Axle, ATV Trailer Axle, Lawn & Landscape Trailer Axle, Motorcycle Trailer Axle, BBQ Pit Trailer Axle, Cargo Trailer Axle, Enclosed Trailer Axle, RV Trailer Axle & More
  • Internal Wiring System
    • To ensure seamless design
    • Protect brake wires from wear and tear
  • Axis Warranty
3500 lb Electric Brake Trailer Axle - 3500 lb Electric Brake 5 lug - Dexter Compatible
3500 lb Electric Brake Trailer Axle – 3500 lb Electric Brake 5 lug – Dexter Compatible

3500 lb Electric Brake Trailer Axle  Specs:

  • 3,500 lbs  Trailer Axle (3.5K Capacity)
  • 5 Lug
  • Tube: 2 3/8″
  • This axle is not ABS compatible

Why Mrovi’s 3500 lb Electric Brake Trailer Axle Stands Out:

  • Superior Safety: Equipped with electric brakes, offering enhanced stopping power for a safer towing experience.
  • Durability & Strength: Made from high-strength straight steel tube construction, ensuring durability and a smooth ride.
  • Easy Installation & Maintenance: Comes fully assembled with an EZ Lube Design, making maintenance a breeze. The underslung design allows for a lower ride height, ideal for various applications.
  • Versatile & Reliable: Compatible with double eye springs and featuring a removable rubber plug for easy grease access, our axle is designed for a wide range of light-duty trailers.
3500 lb Electric Brake Trailer Axle
3500 lb Electric Brake Trailer Axle

Versatility and Compatibility

The 3500 lb Electric Brake Trailer Axle is designed to fit a wide range of light-duty trailers, making it a versatile choice for various applications. Its compatibility with double eye springs and the included bearing kit with all necessary hardware ensures that this axle can be integrated seamlessly into your existing trailer setup.

Why Choose Mrovi’s 3500 lb Electric Brake Trailer Axle?

Durable & Reliable: Made from the highest quality materials to withstand the rigors of road travel and heavy use.

Safe & Secure: Offers enhanced stopping power for safer towing experiences.

Easy Installation & Maintenance: Comes fully assembled for quick setup, with an easy-to-maintain design.

Additional information


61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96

Bolt Pattern

5 x 5, 5 x 4.5

Kit Option

Axle Only, Axle Kit, Complete Kit

Bolt Pattern

MROVI’s Guide for Measuring Trailer Axle Bolt Patterns

How to Measure your Trailer’s Wheel Bolt Circle Lug or Bolt Pattern

In order to replace a hub on your trailer, you will need to know the bolt pattern or lug pattern. Trailer wheel hub patterns can be defined by the number of bolts or lugs per wheel and the diameter of the circle that the bolts are arranged on.  Determining the bolt pattern is rather easy, but it is very important that accurate measurements are taken.  The majority of boat trailers on the road have a 4, 5 or 6 lug pattern.

Determining the bolt pattern on your trailer:

  1. You will need to first count the number of lug bolts on one wheel. Most trailer hubs typically have 4 or 5 lugs per wheel/hub. Heavier duty, higher capacity trailers generally have 6 or 8 Lugs per wheel.
  2. If the trailer hubs have an even number of bolts holding the wheel, measure from the center of one bolt to the center of the bolt directly opposite using a ruler, tape measure or caliper.  The hub lug bolt pattern will be determined by the number of lug bolts and the distance between the opposing hub bolt (see 4-lug hub diagram).  All but 5-lug patterns are measured in this manner.
  3. If your trailer wheel hubs have 5 lug bolts, measuring is slightly different. Choose any lug bolt and measure the distance between the back of one lug to the center of another that is directly across from it. Be sure that you skip one bolt when measuring.  You can measure the distance in either direction
NOTE:  If you are replacing older wheel hubs, wheels, integrated hub/drums or hub/rotors the bearings should be checked for wear and replaced as necessary. Always use a high-temperature wheel bearing grease when re-packing your trailers hubs.

Find Your Hub Face and Spring Center

Axle Min/Max Sizes

Chart displaying minimum and maximum sizes for trailer axles, including hub face to hub face, spring center, and overall length measurements
Chart showing the minimum and maximum sizes for trailer axles, including critical measurements such as hub face to hub face, spring center, and overall length. Ensure accurate measurements for optimal trailer performance and safety.

Understanding Min/Max Measurements for a Trailer Axle

When dealing with trailer axles, understanding the minimum and maximum measurements is crucial for ensuring a proper fit, safe operation, and optimal performance. These measurements help determine the correct axle size for your trailer and ensure it can handle the required load.

1. Hub Face to Hub Face (HF to HF) Measurement

  • Definition: The distance from the outer edge of one hub face to the outer edge of the other hub face.
  • Importance: This measurement determines the overall length of the axle and ensures that the wheels are correctly positioned under the trailer. The correct HF to HF measurement ensures that the wheels do not extend beyond the trailer’s sides or sit too far inward.

2. Spring Center (SC) Measurement

  • Definition: The distance between the center of one spring mount to the center of the opposite spring mount.
  • Importance: This measurement ensures the axle aligns properly with the trailer’s spring hangers. Correct spring center measurement is crucial for balanced load distribution and maintaining the trailer’s stability and alignment during towing.

3. Overall Length (OL) Measurement

  • Definition: The total length of the axle from end to end.
  • Importance: This includes the hub face distance and any additional parts extending beyond the hub faces. Knowing the overall length helps in understanding the space needed for axle installation and avoiding any potential obstructions.

Min/Max Measurements

Minimum Measurements:

  • Hub Face to Hub Face (HF to HF): The minimum HF to HF measurement ensures the wheels fit within the trailer frame without rubbing against the trailer’s body or fenders.
  • Spring Center (SC): The minimum SC measurement ensures that the axle can be securely mounted to the trailer frame with the existing spring hanger placements.
  • Overall Length (OL): The minimum overall length ensures the axle fits within the designated area of the trailer without interfering with other components.

Maximum Measurements:

  • Hub Face to Hub Face (HF to HF): The maximum HF to HF measurement ensures the wheels are not too far apart, which could lead to excessive stress on the axle and poor handling.
  • Spring Center (SC): The maximum SC measurement ensures the axle is adequately supported by the trailer’s spring hangers and prevents excessive flexing or bending.
  • Overall Length (OL): The maximum overall length ensures the axle does not extend too far beyond the trailer, which could affect the trailer’s balance and aerodynamics.

Why Min/Max Measurements Matter

  1. Safety: Ensuring that the axle fits within the specified measurements prevents issues such as improper wheel alignment, excessive tire wear, and instability during towing, which can lead to accidents.
  2. Performance: Proper axle measurements ensure balanced load distribution and optimal suspension performance, leading to a smoother and more efficient towing experience.
  3. Compliance: Adhering to the correct measurements ensures the trailer meets industry standards and regulations, preventing potential legal issues and ensuring roadworthiness.
  4. Durability: Correct axle fitment reduces stress on trailer components, preventing premature wear and extending the lifespan of the axle and associated parts.

Measuring Tips

  • Accurate Tools: Use a reliable measuring tape or laser measurement tool to ensure precision.
  • Level Surface: Ensure the trailer is on a level surface to avoid skewed measurements.
  • Multiple Checks: Measure multiple times to confirm accuracy, and consult the trailer manufacturer’s specifications for guidance.

By understanding and adhering to the minimum and maximum measurements for your trailer axle, you can ensure a safe, reliable, and efficient towing experience.

10 reviews for 3500 lb Electric Brake Trailer Axle (3.5K) – Dexter Compatible

  1. James Taylor

    I recently upgraded my cargo trailer with the 3,500 lb Electric Brake Axle from Mrovi Trailer Parts, and I’m thoroughly impressed. The installation was straightforward, and the improvement in safety and control is remarkable. Highly recommend for anyone looking to enhance their trailer’s performance.

  2. Emily Maynard

    This electric brake axle from Mrovi has been a game-changer for my ATV trailer. The installation was a breeze, thanks to the fully assembled design, and the electric brakes provide unparalleled stopping power. I feel much safer on the road now, knowing I have reliable braking performance. Highly recommend!

  3. John Neal

    Mrovi’s 3.5K Electric Brake Axle has exceeded my expectations. The construction feels sturdy, and the easy-to-lube design makes maintenance hassle-free. I appreciate the attention to detail, especially the internal wiring system that protects brake wires from wear and tear. Overall, a solid choice for anyone in need of a reliable trailer axle.

  4. BBQ Mike

    As a BBQ pit trailer owner, safety and reliability are paramount. Mrovi’s axle delivers on both fronts. The electric brakes provide excellent stopping power, and the high-strength steel construction ensures a smooth ride even on rough terrain. I’m impressed with the attention to detail and would recommend this axle to fellow trailer owners.

  5. Micheal McVickerstein

    I can’t praise Mrovi’s team enough, especially Vano and Kiefer, for their exceptional service. They went above and beyond to ensure I received my 3.5K Electric Brake Axle promptly, even delivering it on a Sunday! The axle itself is top-notch, providing superior safety and reliability for my cargo trailer. I’m thoroughly impressed and grateful for their dedication to customer satisfaction.

  6. Walter McMartin

    I don’t know how and why, but these guys have a price that is better than most of their bigger competitors! I received my axle in just 24 hours, unlike the bigger shps that ship and ait takes 5-7 days to arrive in Maine.

  7. Albin lazaro

    In this place you find wherever you looking for your trailers …

  8. William

    Excellent staff. 3.5k axles kit are amazing. Recommend them…

  9. Tracy

    Very good place! Good service and they do excellent work. 3.5k trailer axles are excellent 👏

  10. Kelly Haynes

    Staff is extremely knowledgeable and very helpful. Amazing customer service. High quality parts at a great price! Highly recommend!

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