Allis Chalmers 4W-305

The Allis Chalmers 4W-305 is a tractor produced by Allis Chalmers. It is equipped with a 731 ci 12.0 L engine. The listed engine power is Diesel (listed): 305 hp / 227.4 kW. Transmission: Power Director. Operating weight: 27100 lbs 12292 kg.

Engine Power

Diesel (listed): 305 hp / 227.4 kW

Fuel & Capacities

200 gal 757.0 L

Transmission

Power Director

Operating Weight

27100 lbs 12292 kg

Overview

	1982 - 1985 Four-wheel Drive (4WD) tractor

Production
Manufacturer	Allis Chalmers
Four-wheel Drive (4WD) tractor
Original price	$93,685

Allis Chalmers 4W-305 Engine
Allis Chalmers 12.0L 6-cyl diesel
Fuel tank	200 gal 757.0 L
Engine details ...

Allis Chalmers 4W-305 Transmission
20-speed two-speed power shift
Transmission details ...

Allis Chalmers 4W-305 Power
Engine	305 hp 227.4 kW
PTO (claimed)	250 hp 186.4 kW

Mechanical
Four-wheel drive
Final drives	planetary
Wet disc brakes
Cab standard with air-conditioning.

Hydraulics
Type	closed center load-sensing
Valves	3
SCV flow	21 gpm 79.5 lpm
Total flow	92 gpm 348.2 lpm

Tractor hitch
Rear Type	IV/III OptOptional

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000 (1.75)

Dimensions & Tires
Wheelbase	126 inches 320 cm
Weight	27100 lbs 12292 kg
Front tire	18.4x38
Rear tire	18.4x38
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Battery volts	12

References

4W-220 & 4W-305 - Super strength with super style. published in 1982, by Allis Chalmers

Engine

Engine Detail — 731 ci / 12.0 L Diesel

Manufacturer	Allis Chalmers 6120T
Configuration	turbocharged diesel, 6-cylinder, liquid-cooled inline
Displacement	731 ci 12.0 L
Bore/Stroke	5.25x5.625 inches 133 x 143 mm
Power	305 hp 227.4 kW
Air cleaner	dry
Compression	16.25:1
Rated RPM	2300
Idle RPM	950-2580
Starter volts	12
Oil capacity	60 qts 56.8 L
Coolant capacity	72 qts 68.1 L

Transmission

Transmission — Power Director

Transmission	Power Director
Type	two-speed power shift
Gears	20 forward and 4 reverse
With 20.8x38 tires.

Dimensions

Allis Chalmers 4W-305 Tires
Ag front	18.4x38
Ag rear	18.4x38
Ag front	23.1x30
	24.5x32
	30.5x32
	20.8x38
Ag rear	23.1x30
	24.5x32
	30.5x32
	20.8x38

Dimensions
Wheelbase	126 inches 320 cm
Length	285 inches 723 cm
Height (hood)	97 inches 246 cm
Height (cab)	139 inches 353 cm
Shipping weight	27100 lbs 12292 kg
Clearance (front axle)	25.8 inches 65 cm
Clearance (rear axle)	29.9 inches 75 cm
Front axle	95.5 inch length 2425 mm
Front axle	119.5 inch length 3035 mm
Rear axle	95.5 inch length 2425 mm
Rear axle	119.5 inch length 3035 mm

Photos

Allis Chalmers 4W-305

Recommended Implements & Sizing Guide

Engineering recommendations for Allis Chalmers 4W-305 based on its 305 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁	Commercial / Field Scale	High horsepower articulated/4WD field plowing.
Rotary Cutter / MowerMowing & Clearing	15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼	Commercial / Field Scale	Large commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep	90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机	Commercial / Field Scale	Deep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage	24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙	Commercial / Field Scale	Broad-acre grain tillage for high-drawbar tractors.
Hay BalerHay & Forage	Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)	Commercial / Field Scale	High-capacity commercial forage harvesting (1000 RPM PTO).

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 4W-305.

Estimated Continuous Field Runtime: 12.6 hrs

Approximately 12.6 hours of continuous field operation at ~75% rated power on a full tank (200 gal / 757.1 L).

Estimated 75% Load Fuel Burn~15.9 gal/hr (60 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