Multiquip 29621 3,500 Lbs. Drop Axle Assembly

The Multiquip 29621 is a genuine OEM 3,500 Lbs. Drop Axle Assembly designed for Multiquip single-axle trailers and diesel-powered generator trailer configurations including DCA20SPXU4F, TRLR25US, TRLR50WE, TRLR50XF, and TRLR50XFE models. As a direct OEM replacement, this assembly delivers the correct load rating, mounting geometry, and drop profile required for safe, compliant trailer operation. Sourced directly through Multiquip's authorized parts network, the part ensures you receive the exact component specified for your equipment. DHS Equipment stocks genuine Multiquip parts to keep your trailer and generator fleet ready for transport.

Key Features

• Rated Load Capacity: — Engineered to the 3,500 lb. gross axle weight rating required for Multiquip single-axle trailer applications, maintaining proper load distribution and structural integrity.
• Drop Axle Profile: — The drop design lowers the trailer deck height for correct equipment loading clearance and center-of-gravity balance during transport.
• Genuine OEM Component: — Manufactured to Multiquip's original specifications, ensuring correct spindle diameter, spring seat positioning, and hub flange dimensions for a direct bolt-in replacement.
• Broad Trailer and Generator Fitment: — Compatible with TRLR25US, TRLR50WE, TRLR50XF, TRLR50XFE, and DCA20SPXU4F trailer-mounted generator configurations.
• Structural Safety Compliance: — A properly rated and correctly fitted axle assembly is critical to roadworthy trailer operation; using the OEM-specified assembly supports DOT load and towing compliance for your trailer configuration.

The axle assembly is the primary structural member that transfers the trailer's load to the wheel hubs and tires while keeping the trailer frame level and stable during towing. On a drop-style axle, the axle beam is offset downward between the spring seats and the spindles, which lowers the trailer bed closer to the ground without reducing road clearance at the wheels. When an axle assembly is bent, cracked, or worn at the spindle bearing surfaces, it can cause uneven tire wear, wheel wobble, or loss of trailer control — making timely replacement essential for safe transport of equipment.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.