Side Dump Trailer


The two-piece rolled design of Trail King’s Steel Side Dump (SSD) tub delivers fast, clean dumping of your payload away from the trailer, with no “carry back.” What’s more, the formed top rail and exterior tub reinforcement helps the tub resist twisting and flexing. Main frame I-beams constructed of one-piece web and flange material, combined with full-depth angle-mounted cross members, result in a trailer with the rugged strength and durability to stand up to your toughest loading, hauling, and dumping demands for years to come.

The Trail King SSD… destined to be the best side dump you’ll ever own.


Lock-Down Retainers
The lock-down retainers feature an extended alignment guide so the pivot bushing returns to sit perfectly in the pivot saddle every time. The larger bearing surfaces reduce wear and provide full contact with the pivot bar for a stronger, more secure lock down. All pivot points are mounted on full-width I-beam cross members for the most load-bearing strength possible.

Shaped Cross Members
All cross members are full depth. Cross members in the main frame area are mounted at an angle. This exclusive Trail King design helps distribute stress over a larger area. The result is the flexible strength necessary to handle your toughest hauling requirements.

Bolt-On Push Block
(Standard) Also available with pintle hitch.

Two-Piece Rolled Tub
The abrasion-resistant tub is constructed of two rolled pieces of Hardox 450. The round bottom delivers fast, clean dumping of the load away from the trailer, with no “carry back.” The fewer weld seams associated with this design minimize the likelihood of cracking. Best of all, this tub design results in weight savings of several hundred pounds.

Twin 5″ Cylinders
Twin, 5″ bore, single-stage cylinders offer maximum stability when dumping. The single-stage cylinders are very low-maintenance. Their two-pin mounting makes them easily removable if they need to be repaired or replaced.

Control Kit
Trail King Side Dump trailers come standard with a trailer-mounted cab control kit.

New Formed Top Rail and Exterior Tub Reinforcement
Large formed top rail resists twisting and flexing of tub. This new design provides 2x the flex resistance of previous models. (Note: configured for electric or manual tarp systems available as options.)

New Flexible Fenders
Rugged, flexible, impact-absorbent plastic fenders (front and rear) shed falling debris to protect both the trailer and the wheels. Bolt-on fender support brackets.

One-Piece I-Beam Construction
Trail King I-beams are constructed of one-piece web and flange material. The result is a mainframe that is stronger, with less twisting and load “bounce”… all of which reduces opportunity for the frame to develop cracks.

  • Hardox 450 Abrasion Resistant Tub
  • 5″ Dia. Hydraulic Cylinders
  • 3-Leaf Spring Suspension
  • 8.25 x 22.5 Steel Wheels
  • Automatic Slack Adjusters w/ 16 1/2″ x 7″ Air Brakes
  • 11R22.5 x 14 Radial Tires
  • Pin Style Landing Gear
  • Impact-absorbent Plastic Fenders -Front & Rear
  • Lightweight Push Block
  • LED Lights


Model TK4OSSD-202P TK4OSSD-302 TK6OSSD-362 TK6OSSD-402 TK6OSSD-433 TK6OSSD-484
Design payload 40,000 lbs. 40,000 lbs. 60,000 lbs. 60,000 lbs. 60,000 lbs. 60,000 lbs.
Axles 2 2 2 2 3 4
Overall length 20’2 29’11” 35’11” 39’11” 42’11” 47’11”
Tub length 18’0″ 28’0″ 34’0″ 34’0″ 36’0″ 36’0″
Overall height 9’4″ 9’4″ 9’4″ 9’4″ 9’4″ 9’4″
Capacity (water level) 11.5 cu. yds. 17.0 cu. yds. 21 cu. yds. 21 cu. yds. 23 cu. yds. 23 cu. yds.
Capacity (full) 15.5 cu. yds. 24 cu. yds. 29 cu. yds. 29 cu. yds. 31 cu. yds. 31 cu. yds.
KP to center last axle axle to axle = 15′ 11″ 25′ 11″ 31′ 11″ 35′ 11″ 38′ 11″ 43′ 11″
Empty weight +/- 3% 10,260 lbs. 12,745 lbs. 14,010 lbs. 14,310 lbs. 16,350 lbs. 19,240 lbs.


Contact Us

For More Information on this trailer,
call your local sales representative located on the
Contact Us page or  call  780-447-1970