Engineered for serious payload.
American-made dump trailers engineered for professionals who can’t afford downtime. Every series features heavy-duty steel frames, reliable hydraulic systems, and the structural integrity to handle repeated heavy loads in demanding conditions.
MODELS
GVWR
MAX WIDTH
MAX LENGTH
D3 SERIES
D5 SERIES
D4 SERIES
D6 SERIES
Heavy-Duty I-Beam Frame Construction
3-Way Spreader Gate — Standard
Telescoping Hydraulic Cylinder (D5, D6)
Gooseneck Engineering (D4, D6, DD, DT)
Ball-in-bed connection shifts weight distribution over the tow vehicle’s rear axle. The result: better stability at highway speed, higher payload ratings, and a trailer that handles the way a commercial operator needs it to — mile after mile.
Pull-Back Tarp System — Standard
Every Delco dump trailer ships with a pull-back tarp system as standard equipment. Material stays contained. Load stays dry. No upcharges, no options menus — just a complete trailer ready to work.
Midnight Black Powder Coat — Built to Last on the Outside Too
PBS9-00005. Applied to every model. Corrosion-resistant, UV-stable, and built to look like new long after lesser trailers have faded and rusted. Custom colors available — but the standard is already right.
Series | Model Name | GVWR | Deck Width | Hitch Type | Lift System | Side Height | Tarp Included | Spare Tire |
D1 | 7K Single-Axle Dump | 7,000 lbs | 60" | Bumper Pull | 3.5" × 9.25" Cylinder — rated for 7K single-axle dump cycles | 18" Solid Steel | Pull-Back Tarp — Standard | No Spare |
D2 | 12K Bumper Pull Dump | 12,000 lbs | 72" | Bumper Pull | 5" × 15.75" Cylinder — rated for 12K dual-axle dump cycles | 21" Solid Steel | Pull-Back Tarp — Standard | No Spare |
D3 | 14K Bumper Pull Dump | 14,000 lbs | 83" | Bumper Pull | 5" × 15.75" Cylinder — rated for 14K daily contractor dump cycles | 24" Solid Steel | Pull-Back Tarp — Standard | No Spare |
D4 | 14K Gooseneck Dump | 14,000 lbs | 83" | Gooseneck | 5" × 15.75" Cylinder — rated for 14K gooseneck dump cycles | 24" Solid Steel | Pull-Back Tarp — Standard | Spare Included |
D5 | 14/16K BP Telescoping Dump | 16,000 lbs | 83" | Bumper Pull | Telescoping 4.375" × 120" — extends dump angle beyond standard cylinder | 24" Solid Steel | Pull-Back Tarp — Standard | No Spare |
D6 | 14/16K GN Telescoping Dump | 16,000 lbs | 83" | Gooseneck | Telescoping 4.375" × 120" — extends dump angle beyond standard cylinder | 24" Solid Steel | Pull-Back Tarp — Standard | Spare Included |
DD | 20K Tandem Dual GN Dump | 20,000 lbs | 96" | Gooseneck | 630 Hoist — engineered for commercial-cycle tandem dual dump operations | 6' Solid Steel | Pull-Back Tarp — Standard | Spare Included |
DT | 21K Gooseneck Dump | 21,000 lbs | 83" | Gooseneck | 5" Cylinder — engineered for triple-axle commercial dump at 21K capacity | 24" Solid Steel | Pull-Back Tarp — Standard | Spare Included |
Hydraulic & Dump Controls
Tie-Down & Load Security
Tongue & Structure
Power & Electrical
Finish & Branding
Shipped Standard — Every Model
Common Questions
Payload, haul distance, and tow vehicle configuration. Bumper pull uses a standard ball mount — compatible with most half-ton and three-quarter-ton trucks and suited to shorter, lighter-duty cycles. Gooseneck connects via a ball in the truck bed, distributing trailer weight over the rear axle for better stability, higher rated payload, and more controlled handling on long hauls under load.
A telescoping cylinder extends in multiple stages, allowing it to generate higher lifting force from a shorter collapsed length than a single-stage cylinder of equivalent lift. On the D5 and D6, this means maximum dump force without the extended transit height of a tall single-stage setup — critical for operators working under height restrictions or hauling dense material.
