Oshkosh HT Tractor

In the ever-constant pursuit of finding faster, smarter, more effective means to clear runways, a growing number of airports are turning to multi-tasking equipment (MTE). A rolling, 81,000-pound Swiss Army Knife, the Oshkosh HT-Series snow tractor does it all, delivering flexibility, maneuverability and savings that can’t be touched by any other multi-tasking equipment. Built with direct input from professionals like you, the HT-Series accepts a wide range of plows, under-body scrapers, material spreaders, tow-behind brooms or combinations of each to meet your airport’s unique challenges and maximize performance.


  • DRIVE ENGINE: Caterpillar C-13 ACERT In-Line 6 Cylinder 4-Cycle
  • ELECTRICAL SYSTEM: 200 Amp Minimum | Chassis Engine Drive
  • INSTRUMENTATION: Oshkosh Command Zone LCD Dash Pod
  • BRAKES / SERVICE: Air Operated Mechanical | Electronic Antilock Brake System
  • FRONT AXLE: Oshkosh Model 27 K | 6.17:1
  • REAR AXLE: Eaton 17427 | 6.14:1


The Oshkosh HT-Series snow tractor wouldn't be an Oshkosh, if it didn't showcase a commitment to safety and reliability unrivaled in the snow removal industry. A new cab-over chassis design, putting operators high above the action, featuring the same outstanding visibility as the recently updated H-Series snow chassis, and on-board diagnostics are just a few examples of how Oshkosh continues to raise the bar both on and off the runway.


An MTE vehicle in the truest sense of the word, the HT-Series snow tractor can perform a myriad of functions, including plowing, deicing, forced-air blowing and scraping. It accepts a wide range of plows, underbody scrapers, material spreaders, tow behind brooms or combinations of each. In short, it provides everything you need to meet your airport’s unique snow removal challenges

Quick Hitch system allows for convenient link/delink of tow behind brooms and front plow.

Options for various wheelbases and mounted equipment.
Options for 4x4 and 6x6 models with GVW ratings up to 87,000 pounds with standard steering, 81,000 pounds with ALL STEER® electronic all-wheel steering system.
Supports any tow behind model specifically designed for the HT-Series snow tractor.


While other multi-tasking units require as much as 110 feet to complete a U-Turn, the HT-Series snow tractor with its ALL STEER® electronic all-wheel steering system can do it in less than 75 feet, wall to wall, with a 24-foot plow and a tow behind broom. Combined with its superior brooming capabilities—a steered broom unit keeps the broom from tracking outside the plow line


Type: Dry, two-stage with safety element
Underhood/outside air intake selector

AXLE, Front:

Make & Type: Oshkosh Model 27K, single reduction with special heat-treated alloy steel shafts, driver-controlled traction differential and
Oshkosh cage ring type steering ends
Ratio: 6.17:1

AXLE, Rear:

Make & Model: Eaton 17427, full floating, single reduction with special heat-treated alloy steel shafts and driver-controlled traction differential
Ratio: 6.14:1


Type: Spring, mounted on rear axle.
Secondary Emergency System: Modulated split type • Auxiliary air inlet, left side • Quick drain lanyards on all tanks


Type: Dual system, air operated mechanical, Electronic Antilock Brake System (4S4M)
Front: 16.5 x 7 in [419 x 179 mm] S-cam rotary
Rear: 16.5 x 5 in [419 x 127 mm] S-cam rotary
Compressor: 18.7 cfm


Oshkosh extra heavy duty
Corrosion resistant Aluminum body with fiberglass roof and fascia
Full-length stainless steel piano type door hinges
One piece panoramic reverse slope windshield
Power windows left and right
Stationary rear windows (3)
Dome lights (2)
Courtesy entry lights (2)
Tinted safety glass
70 inch cab width
Three-point rubber mount


Electric horn
National Standard Plus air ride driver’s seat, right of center
Fold up cloth passenger seat
55,000 BTU heater/defroster
Digital Climate Control
Cigar lighter (1)
12 volt Power outlet (1)
Cup holders (2)
Doors, (2) locking
Electronic engine controls with on-board diagnostics integral with Oshkosh Command Zone®
Electric remote control heated West Coast type mirrors with separate remote adjustable heated spotter mirrors
Ether starting aid, thermally protected, ignition switch activated
Keyed chassis engine
Floor mat
Fresh air type heater and defroster
Grab Handles
LCD dash display
Light bars
Quad electric windshield wipers mounted above windshield with intermittent speed control
Self-canceling turn signals
Side window defrosters
Sun visor, full width exterior front
Tilt/telescoping steering wheel
Windshield washer, 6 quarts
Three point seat belts
High idle cruise control
Digital clock / outside air temperature
Sun Visors, Front and Side


Oshkosh Command Zone® LCD dash pod on steering column:

Hourmeter (registering engine run hours)
Air system pressure (dual system)
Fuel Level with low fuel level warning

Warning Icons For:

Low Air Pressure
ABS Warning
ABS Communication lost
Engine Communication lost
Engine Stop
Check Engine
Low Voltage
Engine overheat
Engine low oil pressure
Transmission overheat
Check Transmission
Transmission communication lost
Hydraulic temperature
Hydraulic fluid level
Parking Brake Applied
Low transmission oil sensor
Transfer case range
Traction enhancement locked/unlocked
Transmission gear selection


Air dryer
Backup alarm
Crankshaft PTO adapter
Dual 75 gal [284 L] fuel tanks
Flat top steel front fenders, arched plastic rear fenders
Full catwalks
Heated fuel/water separator
Mud flaps front and rear of rear tires
Molded fiberglass cooling package cover with access doors
Vertical exhaust


Radiator Core: Fin and tube type with built-in deaeration system • Horizontal flow
Frontal Area: 1,080 sq in [6,967sq cm] Radiator Construction: Bolted, with separate deaeration system
Charge Air Cooler: Cooling flow parallel to radiator
Fan: Temperature-controlled hydraulic motor


Make & Type: Caterpillar, C-13 ACERT, in-line 6 cylinder, four cycle
Displacement: 763 cu in [12.5 L] Horsepower: 335 @ 2,100 rpm, 350 @1,800 rpm
Peak Torque: 1,250 lb ft @ 1,200 rpm
Governed RPM: 2,100


Alternator: 200 amp minimum, chassis engine driven
Lighting: 12 volt
Starting: 12 volt
Battery: Four 12 volt, 950 CCA each @ 0°F [-18°C] (3800 CCA total)


Material: Carbon manganese steel, heat-treated
Type: Single formed channel
Size: 12.38 x 3.88 x .38 in [314 x 98 x 9.5 mm] Yield Strength: 120,000 psi [827 Mpa] minimum
Tapered Section Modulus: 19.67 to 23.49 in3 [322.34 to 384.94 cm3] per rail
RBM: 2,818,000 in-lb per rail
Construction: Grade 8 flanged bolts and flanged locknuts
Front Frame Extension: 24 inches
Rear Tow Hooks: Two Bumper


Cab-mounted headlights with turn signals
Clearance and marker lights to comply with federal regulations
Engine compartment lights
Fender-mounted headlights and turn signals
Roof-mounted strobe light
Dual stop, tail, back-up, turn signal lights (LED) at rear


Acrylic urethane
Epoxy primer
One color from Oshkosh standard color chart


Make & Model: Dana 1710 Series
Dynamically balanced
Splines: “Glidecoat” treated


Make & Type: Sheppard XD120 integral hydraulic power gear
Chassis Hydraulics Warning System: Low level/high temperature


Front: Type: Hotchkiss, semi-elliptic spring
Main: 7 leaf, 48 x 3 in [1,219 x 76 mm] Auxiliary: 5 leaf, 39.63 x 3 in [1,006 x 76 mm] Rating: 27,000 lb [12,247 kg] Rear: Type: Hotchkiss, semi-elliptic spring
Main: 7 leaf, 48 x 3 in [1,219 x 76 mm] Rating: 18,000 lb [8,165 kg]


Make & Tread: Michelin XZL
Size: 395/85R20 - 20 ply


Make & Model: Oshkosh 55000 Series, rear axle declutch
Speeds: Two with Oshkosh SmartShift®
Ratio: 2.66:1 and 0.98:1
*Versions are available with rear axle disconnect, bevel gear center differential with driver-controlled lock, or automatic (Dorr-Miller) differential


ALLISON® Rugged Duty Series 4-speed electronic
1st ............3.51:1 Reverse ............4.80:1
2nd ...........1.91:1
3rd ............1.43:1
4th ............1.00:1


Ratings at Axle Hubs:

Front: 27,000 lb [12,247 kg] Rear: 18,000 lb [8,165 kg] Total: 45,000 lb [20,412 kg]


158 in [4,013 mm]


Type: Steel Disc
Size: 20.00 x 10.00 in

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General Information

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General Information