View New and Used Diamond C Trailers for Sale

Diamond C specializes in premium grade open steel trailers. They're based in Texas and have been making trailers since 1985. As a family-owned business, they are driven by their core values to invest in their team members, customers and community. They strive to build extraordinary trailers for work and play and provide the service to match them.

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Diamond C makes it easy to haul machinery, vehicles, building materials and more with their vast selection of trailers built for heavy loads. Their dump trailer options range from general duty to medium duty to heavy duty and allow you to choose from features such as deck over models, telescopic dumps and gooseneck hitches. Diamond C provides many choices for those looking to haul equipment, from their customizable equipment trailers that come as deckover trailers and tilt deck trailers to their pintle hitch flatbed trailers. Extra tall loads can be towed using one of their step deck trailer models, while their gooseneck flatbed trailers are perfect for extra heavy loads. Car enthusiasts can tow their vehicles using one of Diamond C's car hauler trailers.

There are 40 Diamond C dealers who list their trailers with us. We currently offer 390 trailers for sale by Diamond C on TrailersUSA.com. Get started with the search for your perfect trailer by browsing our Diamond C trailer inventory today.

Displaying 1 - 15 of 390 Items

2025 Diamond C SDX216-38X102HDT

8x38 Equipment Trailer for sale in Mount Vernon, IL

Sold by: Country Blacksmith LLC
2025 DIAMOND C STEP DECK FOR SALE, 38 FT LONG PLUS 10 FT STEP DECK, HYDRAULIUC TAIL, 2-16K AXLES FRAME SIZE, L38X102 AXLE, 2 - 16K ELEC/HYD DISC BRAKES SUSPENSION, HEAVY DUTY ADJUSTABLE SUSPENSION F[...]

Sale IN STOCK 


2025 Diamond C WDT212-20X96

8x20 Dump Trailer for sale in Mount Vernon, IL

Sold by: Country Blacksmith LLC
ON ORDER IN TACTICAL TAN--- 2025 DIAMOND C 20FT X 96 WORKHORSE DUAL TANDEM GOOSENECK DUMP TRAILER ENGINEERED BEAM FRAME AND NECK 12 INCH CENTER CROSS MEMBERS TELESCOPIC HOIST WITH HONDA GAS POWER UNI[...]

 SALE PENDING 


2025 Diamond C FMAX216-32X102HDT-40K

8x32 Equipment Trailer for sale in Mount Vernon, IL

Sold by: Country Blacksmith LLC
2025 DIAMOND C 32' ENGINEERED BEAM GOOSENECK FLATDECK TRAILER, HYDRAULIC DOVETAIL PACESETTER EDITION FRAME SIZE, L32X102 AXLE, 2 - 16K ELEC/HYD DISC BRAKES SUSPENSION, HEAVY DUTY ADJUSTABLE SUSP[...]

 SALE PENDING 


2023 Diamond C FMAX212-40X102SD

8x40 Equipment Trailer for sale in Mount Vernon, IL

Sold by: Country Blacksmith LLC
NOW HAS ROLLING TARP INSTALLED---2023 DIAMOND C 40' ENGINEERED BEAM GOOSENECK FLATDECK TRAILER, STRAIGHT DECK WITH 8' REAR SLIDE-IN RAMPS, 2-12K ELECTRIC BRAKE AXLES, SPRING SUSPENSION, ST2[...]

Sale IN STOCK 


2025 Diamond C FMAX216-35X102HDT

8x35 Equipment Trailer for sale in Mount Vernon, IL

Sold by: Country Blacksmith LLC
2025 DIAMOND C 35' ENGINEERED BEAM GOOSENECK FLATDECK TRAILER, PACESETTER EDITION 12' HYDRAULIC DOVETAIL WITH 12.5 DEGREE LOADING ANGLE, SCISSOR ACTION SELF LOCKING HINGE MECHANISM, FRAME S[...]

Sale IN STOCK 


2025 Diamond C Diamond C FMAX-212 PACESETTER HYDRAULIC DOVE (96452) 38'X102

8x38 Equipment Trailer for sale in Broken Arrow, OK

Sold by: Central Trailers
DIAMOND C FMAX212 2.0 ENGINEERED BEAM 25.9K W/ HYDRAULIC DOVETAIL PACESETTER EDITION - * SHOCKER HITCH $1600.00 OPTION/OPTIONAL TIE DOWN, 10 EXTRA 5/8" D-RINGS TIRES, ST235/80R16 DUAL, 14 PLY RA[...]

Sale 

$45,990
$41,490

2024 Diamond C FMAX212-32X102HDT-PACE

8x32 Equipment Trailer for sale in Mount Vernon, IL

Sold by: Country Blacksmith LLC
2024 DIAMOND C FMAX212-32X102 PACESETTER WITH HYDRAULIC DOVETAIL FRAME SIZE, L32X102 DECALS, FMAX212 SUSPENSION, HEAVY DUTY ADJUSTABLE SUSPENSION FRAME, ENG. BEAM W/3" I-BEAM XM ON 12" CENT[...]

 SALE PENDING 


2025 Diamond C Diamond C FMAX 210 HD (92596) GOOSENECK Equipment Trailer

8x30 Equipment Trailer for sale in Broken Arrow, OK

Sold by: Central Trailers
DIAMOND C FMAX-210 GOOSENECK EQUIPMENT TRAILER 30'X102" FMAX210 2.0 ENGINEERED BEAM 25K W/ MAX RAMPS OR EXTREME DUTY KNEE RAMPS FRAME SIZE, L30X102 AXLE, 2 - 10K ELEC/HYD DISC BRAKES DECAL[...]

Sale 

$39,990
$35,690

2024 Diamond C FMAX212 38' Desert Tan Gooseneck 25.9K GVWR

8x38 Deckover/Flat Deck Trailer for sale in Jordan, MN

Sold by: Central Trailer Sales
Diamond C FMAX212 Desert Tan 102"x38ft Dual Wheel Gooseneck with 12,000# Elec/Hyd Disc Brake Axles, Pacesetter Edition, 12' Hydraulic Dovetail, Dual 20k Hydraulic Jacks. Pacesetter Edition[...]

 IN STOCK 

$35,639

2024 Diamond C FMAX212 40' Gooseneck 25.9K GVWR W/ Oak Decking

8x40 Deckover/Flat Deck Trailer for sale in Jordan, MN

Sold by: Central Trailer Sales
Diamond C FMAX212 102"x40ft Dual Wheel Gooseneck with 12,000# Elec/Hyd Disc Brake Axles, Pacesetter Edition, 12' Hydraulic Dovetail, Dual 20k Hydraulic Jacks, & Oak Floor Pacesette[...]

 IN STOCK 

$35,459

2025 Diamond C FMAX212 35’ x 102” HDT

8x35 Flatbed/Flat Deck (Heavy Duty) Trailer for sale in Van Alstyne, TX

Sold by: TSI Trailers
Added Options: Dual 20k Hydraulic Jacks, Electric Over Hydrulic Disc Brakes, Heavy Duty Hutch Adjustable Suspension, Extra Underslung Storage Box, 4 Pairs of Extra Clearance Lights, Bolt-On Flood Lig[...]

Sale IN STOCK ON ORDER 

$34,684

2023 Diamond C FMAX212-30X102MR

8x30 Equipment Trailer for sale in Mount Vernon, IL

Sold by: Country Blacksmith LLC
HAS HYDROJACKS---2023 PACESETTER DIAMOND C 25'+5' ENGINEERED BEAM GOOSENECK FLATDECK TRAILER, 5' DOVETAIL WITH 2 FLIP OVER MONSTER RAMPS(44" WIDE, SPRINGLOADED), 2-12K ELEC/HYD DI[...]

Sale IN STOCK 


2025 Diamond C FMAX212 HDT 32' x 102"

8x32 Flatbed/Flat Deck (Heavy Duty) Trailer for sale in Van Alstyne, TX

Sold by: TSI Trailers
Added Options: Dual 20k Hydraulic Jacks, Hydraulic Disc Brakes, Hutch Heavy Duty Suspension, Underslung Storage Box, Solar Charger, Slide Track on Passenger Side, Bolt On LED Loading Lights, 4 Extra [...]

Sale IN STOCK ON ORDER 

$34,189

2022 Diamond C FMAX210SS-38X102HDT

8x38 Equipment Trailer for sale in Mount Vernon, IL

Sold by: Country Blacksmith LLC
2022 DIAMOND C 38FT ENGINEERED BEAM GOOSENECK FLATDECK TRAILER WITH SUPER SINGLES, 12' HYDRAULIC DOVETAIL WITH 12.5 DEGREE LOADING ANGLE, SCISSOR ACTION SELF LOCKING HINGE MECHANISM, 2-10K ELEC[...]

Sale IN STOCK SPECIAL 


2024 Diamond C FMAX212 38' Desert Tan Gooseneck 25.9K GVWR

8x38 Deckover/Flat Deck Trailer for sale in Jordan, MN

Sold by: Central Trailer Sales
Diamond C FMAX212 Desert Tan 102"x38ft Dual Wheel Gooseneck with 12,000# Elec/Hyd Disc Brake Axles, Pacesetter Edition, Max Ramps, Oak Floor, Dual 20k Hydraulic Jacks. Pacesetter Edition* Heav[...]

 IN STOCK 

$33,299