Fontaine Magnitude 55MX | TM Trailer Sales

Price

$198,000+FET

from $3,471/mo · 72mo

Price excludes 12% FET*. Check “Include FET” for out-the-door.

Arriving Soon · Oct 2026Upgrades

Drawing shows the trailer type, not to scale.

Wheels: 8.25 x 22.5 Outer Aluminum outside/steel disc inside - hub-piloted
Tire Inflation: Tire Inflation System installed
Additional Marker Lights: Additional Marker Lights Installed
Flipbox: Optional 35 inch flipbox
Flip Axle: 51/60 rear flip axle -Outer Aluminum outside steel disc inside- 275/70R 22.5 Tires
Hydraulic Flip Axle Option: Hydraulic Flip Axle Option Please note must select axle above with this option

Accent Package	None
Width	8 feet 6 inches
Model	Magnitude 55MXT - Extendable Deck, Modular Tridem Bogie (Model: MAGNITUDE 55MX)
Capacity	55 tons in 16 ft. 0 in. (closed position) length with fourth axle close coupled or single axle stinger--GAWR and GVWR determine legal payloads
Load Base	16-foot rigid 2-point load centered in deck when deck is fully closed. Note: Only rigid self supporting loads when deck is open. The load base becomes the open deck minus 2ft.
Length (Trailer Only)	55 feet 4 inches (with standard axle spread)
Compatibility	Designed to accept optional 51/60 rear axle, EQ1 spreader, and/or 35 inch flip box
Estimated Weight	30,970# +/- 3%

Design	Narrow hydraulic removable non-ground bearing - swing radius of 102 inches (11ft 11in overall gooseneck length) set up for wetline operation
Loaded Fifth Wheel Height	Dual Cam Pawl Arm Assembly with 7 ride height positions (50 inches nominal)
Swing Radius	102 inches (11 feet 11 inches overall gooseneck length) - NGB
Kingpin	Removable kingpin at 102 inch radius (MBMD/MDSR) / Removable kingpin at 102 in. radius (MX)
Power Source	Set up for wet line operation
VIN Plate	Bilingual VIN plate
Registration/Document Holder	Registration/document holder installed
Hydraulic Fittings	OEM Standard 1/2 inch
Gooseneck Design	Narrow hydraulic removable non-ground bearing - swing radius of 102 inches (11ft 11in overrall gooseneck length) set up for wetline operation
Alternate Kingpin	Removable kingpin at 102 in. radius

Framework	All main longitudinal members fabricated with 100,000# minimum yield steel flanges
Design	Flat Level Telescopic Deck Design
Width	8 feet 6 inches overall
Deck Length	29 feet clear deck length (closed); 50 feet (open)
Loaded Deck Height	Deck: 20 in. Ground Clearance: 6 in.
Crossmembers	Crossmember spacing outboard mainbeams 12 in c/c (nominal)
Flooring	2 inch nominal Apitong wood full width
Front Ramps	None, front of deck sloped top down to assist in loading with traction cleats
Outriggers	14 pair removable swing type; 1 pair removable hook on type
Toolbox	1 fully covered tray in rear of deck between mainbeams with lockable cover
Lash Rings	12 pair - 24 total
Deck Design	Flat Level Telescopic Deck Design
Deck Width	8 feet 6 inches overall (unless optional deck width is selected)
Extension Brackets	(14) pair removable swing type; (1) pair removable hook on type
Front Bogie Ramp	Included
Boom Trough	Low Boom Well V crossmembers with bolt-in V pan
Deck to Bogie Connection	Modular
Bolsters	Recessed load bearing between all axles and rear of last axle
Covered Rear Bogie	None
Rear Bogie Height	40 7/8 in.
Liquid Filled Gauge	Liquid filled air gauge installed

Number	3
Capacity	25,000 lb. nominal capacity per axle (GAWR determined by suspension type, brakes, tires, and other components)
Spread	54.5 inches (between axles) (MBMD/MDSR) / 54-1/2 in. (between axles) (MX)
Dust Shields	None
Brakes	16.5 inches x 7 inches with 5.5 inches autoslacks - heavy duty brake drums - outboard mount (MBMD/MDSR) / 16-1/2 in. x 7 in. with 5.5 in. autoslacks; heavy duty brake drums; outboard mount (MX)
Spring Brakes	None standard
Number of Axles	3
Axle Capacity	25,000 lb. nominal capacity per axle NOTE: GAWR determined by suspension type, brakes, tires and other components.
Axle Spread	54-1/2 in. (between axles)

Type	Air ride
ABS	None required
Chain Lift	First Axle (acts as limit chains)
Override Chains	Override Chains Axle 2 & 3
Third Axle Lift	Air lift
Mechanical Ride Height Control	7-position mechanical ride height control system
Manual Dump Valve	Manual Dump Valve (Push Pull)
Load Scale	None
Compatibility	Designed to accept 55/60 rear axle, spreader and/or 23 inch flipbox
Suspension	Air ride

Brakes	16-1/2 in. x 7 in. with 5.5 in. autoslacks; heavy duty brake drums; outboard mount
Spring Brakes	None

UpgradeWheels	8.25 x 22.5 Outer Aluminum outside/steel disc inside - hub-piloted
Tires	275/70R 22.5 OEM Standard
Hubodometer	None
UpgradeTire Inflation	Tire Inflation System installed

Electrical System	DOT sealed beam and harness with LED lights and 4 inch flush mounted battery powered amber strobes
Tail Lights	3 tail light package
Electrical Receptacle	J560 7-pin connector
Marker Lights	3 marker lights per side including mid turn
UpgradeAdditional Marker Lights	Additional Marker Lights Installed

Lash Rings	12 pair - 24 total
Flag Holders	2 pair flag holders

Standard	Fontaine black polyurethane enamel PN 51172000/G02BC0001
Paint	Fontaine black polyurethane enamel

UpgradeFlipbox	Optional 35 inch flipbox
UpgradeFlip Axle	51/60 rear flip axle -Outer Aluminum outside steel disc inside- 275/70R 22.5 Tires
UpgradeHydraulic Flip Axle Option	Hydraulic Flip Axle Option Please note must select axle above with this option
Dust Shields on Flip Axle	None
Spreader Bar	None