Fiat-Hesston 80-66

Production ended · 2WD or 4WD

PTO power · claimed

70 hp

Weight
6,535 lb
Engines
1 Diesel
Built
no record
Price new · 1990
$26,500

Power

Power specifications
Engine80 hp unspecified
PTO70 hp claimed
PTO, tested70.4 hp
Drawbar62 hp claimed
Drawbar, tested62.2 hp
Listed power80 hp engine basis

Engines

Engines fitted to the Hesston 80-66
Fiat 3.9L 4-cyl dieselDiesel · 4 cyl238 ci
Engine details
Fiat 3.9L 4-cyl diesel
Bore × stroke
4.09 in × 4.53 in
Rated speed
2,500 rpm
Rated power
80 hp
Compression
17:1
Cooling
liquid-cooled

Transmissions

Transmissions for the Hesston 80-66
12-speed partially synchronizedpartially synchronized12F / 4R
12-speed mechanical shuttlemechanical shuttle12F / 12R
20-speed creepercreeper20F / 8R
Transmission notes

12-speed partially synchronized: Four gears (1-4) in three ranges (I-III). Shifts between gears are synchronized.

12-speed mechanical shuttle: Four gears (1-4) in three ranges (I-III) with shuttle.

20-speed creeper: Four gears (1-4) in three ranges (I-III) with normal and creeper ranges.

Weight

Weight specifications
Weight6,535 lb operating; 4WD
Shipping5,800 lb
Ballasted9,400 lb

Dimensions

Dimensions specifications
Wheelbase90.7 in
Length139 in
Height100 in unspecified
Front axle clearance21.5 in
Rear tread, narrowest55.1 in
Rear tread, widest78.8 in

Capacities

Capacities specifications
Fuel tank19.2 gal

Hydraulics

Hydraulics specifications
Systemopen center
Pump flowno record
Total flow11 gpm
Pressure2,700 psi
Remote valves1 to 3

Hitch

Hitch specifications
Rear hitch categoryII
Controlposition and lower-link draft control
Rear lift capacity5,194 lb

PTO

PTO specifications
Rear PTOindependent
Rear PTO speeds540/ground

Chassis

Chassis specifications
Drive2WD/4WD
SteeringPower steering
BrakesDifferential mechanical wet disc brakes
CabFour-post ROPS. Canopy optional

Tires

Tires specifications
Front7.50-16
Rear18.4-30

Electrical

Electrical specifications
System voltage12 V
Chargingalternator
Charging output33 A

Production

Production specifications
Price new$26,500 (1990)
Built byFiat

Variants

  • 80-66 utility 2WD
  • 80-66DT utility 4WD
  • 80-66OR orchard 2WD
  • 80-66ORDT orchard 4WD
  • 80-66HC high-crop
  • 80-66HCDT high-crop 4WD

Literature

  • 66 Series Tractors 45 to 70 PTO HP Hesston, 1985
  • 66 Series Tractors Models 55-66, 60-66, 70-66, 80-66 - 45 to 70 PTO HP Hesston, 1985

Attachments

  • front-end loader