
The 2021 Centerline tri-drive compatible end dump allows you to haul either with a tandem or tri-drive truck, providing ultimate flexibility. This end dump trailer utilizes a sliding suspension frame to achieve correct inter-axle spacing when using a tri-drive truck.
Curious how it works? Slide the suspension forward prior to raising the dump body. This style of end dump greatly improves stability when dumping compared to a quarter frame style end dup. When you are preparing for transit, slide the suspension backward to achieve correct inter-axle spacing if using with a tri-drive truck.

This trailer utilizes a sliding suspension frame to achieve correct inter-axle spacing when using a tri-drive tractor.

Engineered laser cut flared end crossmembers increase torsional twist strength making the trailer much more stable.

Equipped with a Hyva hydraulic cylinder, which has the industry’s highest working pressure – delivering maximum results day in and day out.

We use a 110,000 psi hi-tensile frame flange AND webb, while the majority of other trailers only use hi-tensile flanges.

We use a radius 12 box design which greatly improves cleanout by preventing material build up.

The unique sloped tailgate design of this end dump prevents material hang up when dumping.
| Model | RC4100EX |
| Length | Closed: 35', Open: 41’2” |
| Box Length | 31'1" on the floor |
| Width | 8'6" |
| Sidewall Height | 48" |
| Unladen King Pin Height | 53" |
| End Dump Trailer Capactiy | 39 cu. yd. with 2” x 12” wood sideboard |
| Box | Radius style box design, 400-500 brinell tensile strength steel, 3/16” steel body construction, Hi-tensile formed tub top beam, 60” forward slope bulk head design, 60” high perimeter frame design tailgate, 2” x 12” finished spruce painted, Side ladder mounted on LH rear sidewall, Placard holders & document tube |
| Frame | QT-100 (100,000 psi) main frame rails, Engineered flared end crossmembers, Hi-tensile 3/8” steel upper coupler plate assembly with 2” king pin @ 18” setting, Sliding suspension sub frame assembly with (2) wheelbase positions, Hi-tensile grease type pins and bushings |
| Load Cover | Michel’s 12” bow retractable PVC load cover c/w chain driven manual winder |
| Landing Gear | (2) speed landing gear |
| Hoist | 5 stage telescopic hoist, Single line system: power up, gravity down, Quick coupler connects to suit tractor wet kit |
| Suspension | (3) 30,000 lb. air ride suspension @ 60” axle spacing |
| Axles | (3) 25,000 lb. @ 77.5” track |
| Brakes | 16 ½” x 7” Q S-Cam quick change brakes c/w enclosed cams, Automatic slack adjusters & type 30-30 brake pots on all axles, Parallel bearing system & Stemco HP seals, Meritor/WABCO 2S/1M ABS |
| Hubs & Drums | 10 stud steel piloted hubs, Outboard cast drums |
| Wheels | 10 stud pilot mounted 8.25 x 24.5 steel wheels – silver |
| Tires | 11R-24.5, 16 ply radial |
| Electrical System | Electric over air suspension dump, Tailgate solenoid & weigh gauge, LED rubber grommet mounted sealed lamps, Step, turn, tail & ID lights are installed in rear of chassis, Front & side markers in dump body, Midway turn signal lights installed on the dump body |
| Fenders | Aluminum checker fenders on front trailer frame, Plastic 180 degree tub fenders at back over tridem group |
| Mudflaps | Standard equipped – full mud flap package |
| Finish | Sandblasted, primed, and painted with PPG urethane paint, Sideboards to match trailer chassis, Safety stripe applied as per regulation, Document holder installed on frame side rail |
| Warranty | 1st year – 100% parts & labour, 2nd year – 50% parts & labour, 3rd to 5th year – 50% parts only |
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