Allis Chalmers 185

The Allis Chalmers 185 is a tractor produced by Allis Chalmers. It is equipped with a 301 ci 4.9 L engine. The listed engine power is 74.87 hp 55.8 kW. Transmission: Allis-Chalmers Power Director. Operating weight: 6710 lbs 3043 kg.

Engine Power

74.87 hp 55.8 kW

Fuel & Capacities

24.6 gal 93.1 L

Transmission

Allis-Chalmers Power Director

Operating Weight

6710 lbs 3043 kg

Overview

	1970 - 1981 Row-Crop tractor

Production
Manufacturer	Allis Chalmers
Row-Crop tractor
Total built	14,961
Original price	$18,891
The Allis-Chalmers 185 was one of the "Crop Hustler" models, designed to pull at higher speeds to cover more acres per hour.

Allis Chalmers 185 Engine
Allis-Chalmers 4.9L 6-cyl diesel
Engine details ...

Allis Chalmers 185 Transmission
8-speed partial power shift
Transmission details ...

Allis Chalmers 185 Power
Drawbar (tested)	63.82 hp 47.6 kW
PTO (tested)	74.87 hp 55.8 kW
Performance test details ...

Mechanical
Two-wheel drive
Power steering
Differential mechanical band and disc brakes
Open operator station. Optional two-post ROPS and canopy.

Capacity
Fuel	24.6 gal 93.1 L
Hydraulic system	6.5 gal 24.6 L

Hydraulics
Type	open center
Capacity	6.5 gal 24.6 L
Valves	2
Total flow	20 gpm 75.7 lpm

Tractor hitch
Rear Type	II

Power Take-off (PTO)
Rear PTO	continuous
Rear PTO Type	540
	540/1000 OptOptional

Dimensions & Tires
Wheelbase	99.2 inches 251 cm
Weight	6710 lbs 3043 kg
Front tire	7.50-16
Rear tire	16.9-28
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	55

References

Loaders - picking up where the others leave off published in 1979, by Allis Chalmers
185 Crop Hustler Tractor published in 1971, by Allis Chalmers
185 - Diesel Tractor published in 1976, by Allis Chalmers
185 - Diesel Tractor published in 1977, by Allis Chalmers

Engine

Engine Detail — 301 ci / 4.9 L Diesel

Manufacturer	Allis-Chalmers
Fuel Type	Diesel
Configuration	6-cylinder, liquid-cooled
Displacement	301 ci 4.9 L
Bore/Stroke	3.875x4.25 inches 98 x 108 mm
Compression	16.25:1
Rated RPM	2200
Firing order	1-5-3-6-2-4
Starter volts	12
Oil capacity	11 qts 10.4 L
Coolant capacity	17 qts 16.1 L

Allis Chalmers 185 Engine

Transmission

Transmission — Allis-Chalmers Power Director

Transmission	Allis-Chalmers Power Director
Type	partial power shift
Gears	8 forward and 2 reverse
Oil capacity	27 qts 25.6 L
With 18.4-28 rear tires.

Dimensions

Allis Chalmers 185 Tires
Ag front	7.50-16
Ag rear	16.9-28
Ag front	6.50-16
	7.50-20
	9.5L-15
	10.00-16
Ag rear	13.6-38
	15.5-38
	18.4-28
	18.4-30

Dimensions
Wheelbase	99.2 inches 251 cm
Length	158 inches 401 cm
Width	76.5 inches 194 cm
Clearance (front axle)	20.5 inches 52 cm
Clearance (rear axle)	32.9 inches 83 cm
Front tread	53 to 77 inches 134 to 195 cm
Rear tread	58 to 93 inches 147 to 236 cm

Allis Chalmers 185 Weight
Operating	6710 lbs 3043 kg
Ballasted	8700 lbs (factory listed) 3946 kg
	9400 lbs (Nebraska test) 4263 kg

Allis Chalmers 185 Height
Steering wheel	76.6 inches 194 cm
Hood	61.4 inches 155 cm
Exhaust	95.6 inches 242 cm

Tests

Nebraska Tractor Test 1044
Diesel 8-speed 2WD May 26 - June 3, 1970 Link: Nebraska Tractor Test 1044 file
PTO performance
Power at rated engine speed	74.87 hp 55.8 kW
Fuel use	5.3 gal/hour 20.1 l/hour
Power at rated PTO speed	70.72 hp 52.7 kW
Fuel use	4.9 gal/hour 18.5 l/hour
Drawbar performance
Max power	63.82 hp 47.6 kW
Fuel use	5.3 gal/hour 20.1 l/hour
Gear 2-Hi used for power test.
Max pull	7,568 lbs 3432 kg
Gear 1-Hi used for pull test.

Photos

Allis-Chalmers 185, left side.

Allis-Chalmers 185 with harrow, right side.

Recommended Implements & Sizing Guide

Engineering recommendations for Allis Chalmers 185 based on its 74.87 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	3 to 4 Bottom (16")3 - 4 铧 (40 cm)	Heavy Duty	Suitable for medium loam and stubble turnover.
Rotary Cutter / MowerMowing & Clearing	7 to 8 ft (84-96 in)2.1 - 2.4 m	Heavy Duty	Heavy-duty twin spindle cutter for overgrown acreage.
Rotary TillerSeedbed Prep	78 to 84 in200 - 215 cm	Heavy Duty	Heavy commercial tiller with multi-speed gearbox.
Disc HarrowSecondary Tillage	7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙	Medium Duty	Field leveling and clod breaking behind plows.
Hay BalerHay & Forage	4x4 to 4x5 Round Baler1.2x1.5 m 紧凑圆捆机	Heavy Duty	Silage and dry hay; 540 RPM PTO with slip-clutch.

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Allis Chalmers 185.

Estimated Continuous Field Runtime: 6.3 hrs

Approximately 6.3 hours of continuous field operation at ~75% rated power on a full tank (24.6 gal / 93.1 L).

Estimated 75% Load Fuel Burn~3.9 gal/hr (14.7 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours