2026 Diamond C FMAX312 40K PKG 30' x 102" SD

2026 Diamond C FMAX312 40K PKG 30' x 102" SD

With an up to 40,000 lb GVWR, 18" Engineered Beam frame, and 9,000 lb curb weight, the FMAX312 triple dual wheel gooseneck trailer is the undisputed king of the road. This FMAX312 gooseneck trailer sets the benchmark for strength and capacity, making it the ultimate choice for heavy-duty hauling.

Features may include:

• The Straight Deck tail configuration includes 3" channel 96" Rear Slide-In Ramps that can be conveniently stowed away when not in use. Come with a single piece bumper with light protection.

• The Fleetneck 2.0 neck web is stronger and lighter with the new 10-gauge Grade 80 material resulting in a 65-pound weight reduction.

• The new spare tire mount location with the easy-to-handle winch that raises and lowers the spare is now located under the trailer deck, guaranteeing it is out of your way until you need it.

• Grade 100 main frame beams with a 10-gauge thickness have doubled the yield strength of the Fleetneck 1.0.

• Storing your chains is easy with the standard chain tray with a winch mount combination and has the option to add a bolt-on winch box.