NOTE: Professional Company for Brake Systems & Precision Components.

4″ Drop Square Tubular Trailer Axle with Brake Flange – 3,500 lbs

Founded in 2015 in Weifang City, near Qingdao Bay, Weifang Top Trailer Accessories Co., Ltd. specializes in high-quality trailer components with convenient global shipping access.

With two modern workshops, we produce electric brake assemblies, stamping parts, brake drums, axles, oil seals, and dust cups. Backed by 150 skilled employees and strict quality control, our products are trusted in the U.S., Canada, Australia, New Zealand, and more.

We welcome global partners to grow and succeed together.

This 4″ drop square tubular trailer axle with brake flanges is engineered for medium-duty trailers with a total axle load capacity of 3,500 lbs. The assembly includes a durable square tube axle with pre-installed brake flanges, providing a reliable, easy-to-install solution for trailer builders or replacement projects. Ideal for utility trailers, boat trailers, RVs, and other trailers requiring braking systems.

Key Features:

  • Axle Capacity: 3,500 lbs

  • Type: Square tubular axle with 4″ drop and brake flanges

  • Hub Material: High-strength steel, precision machined

  • Finish Options: Black painted or hot-dip galvanized for corrosion resistance

  • Mounting Style: Easy bolt-on installation with welded spring seats

  • Bearing Type: Tapered roller bearings, pre-greased

  • Ideal Use: Utility trailers, boat trailers, RVs, small cargo trailers requiring brakes

Specifications:

Item Description
Purpose For replacement or repair
Condition New
Place of Origin Shandong, China
Use Trailer Parts
Part Name Trailer Axle
Max Payload 3500 lbs
Size Standard
Brand Name Top
Product Name Axle Parts
Accessories Trailer Accessories
Material Steel
Application Used for Trailer Trucks
Color Black
Type Welding
Package Standard Package
MOQ (Minimum Order Quantity) 100 pcs
Certificate ISO/TS16949/ADR
Selling Units Single Item
Single Package Size XX cm (to be confirmed)

Applications:

This brake-equipped drop axle is suitable for medium-duty trailer types, including:

  • Utility and cargo trailers

  • Boat trailers

  • RV and camper trailers

  • Caravans and small travel trailers

  • ATV, motorcycle, or small equipment haulers

Installation Notes:

  • Confirm compatibility with your trailer’s spindle size, bolt pattern, and spring placement before installation.

  • Apply high-temperature wheel bearing grease during assembly.

  • Inspect hubs, bearings, and seals regularly for safe operation and longevity.

For more details on installation and specifications, visit our official product page or contact our technical support team for personalized assistance.

Axle parts Details

 

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