Allis Chalmers 175 Tractor

Manufacturer Allis Chalmers
Price 15(USD)
Model 175
Equipment Type Row-Crop Tractors
Factory

NEBRASKA TRACTOR TEST 1043 2

Description 236 diesel 8-speed 2WD/May 26 - June 3, 1970/Link: Nebraska Tractor Test 1043 file/PTO performance/Drawbar performance/Gear 2H used for power test./Gear 1H used for pull test.
Power at rated engine speed 62.47 hp/46.6 kW
Fuel use 4.2 gal/hour/15.9 l/hour
Power at rated PTO speed 54.62 hp/40.7 kW
Max power 54.05 hp/40.3 kW
Max pull 6,407 lbs/2906 kg

NEBRASKA TRACTOR TEST 1156 2

Description Gasoline 8-speed 2WD/April 1 - 11, 1974/Link: Nebraska Tractor Test 1156 file/PTO performance/Drawbar performance/Gear 2H used for power test./Gear 1H used for pull test.
Power at rated engine speed 60.88 hp/45.4 kW
Fuel use 5.1 gal/hour/19.3 l/hour
Power at rated PTO speed 56.02 hp/41.8 kW
Max power 51.80 hp/38.6 kW
Max pull 6,875 lbs/3118 kg

ALLIS CHALMERS 175 POWER

Drawbar (tested) 54.05 hp/40.3 kW
PTO (tested) 62.47 hp/46.6 kW

ENGINES OVERVIEW

The Allis Chalmers 175 tractor offers diverse engine options, including Perkins 3.9L and 4.1L diesel engines, providing robust torque and fuel efficiency. The Allis-Chalmers 3.7L gasoline variant may offer easier starting in colder climates but typically has reduced fuel economy compared to its diesel counterparts. When selecting an engine, consider application needs: diesel engines are generally preferred for heavy-duty tasks due to better fuel consumption and durability.

Description Perkins 3.9L 4-cyl diesel/Perkins 4.1L 4-cyl diesel/Allis-Chalmers 3.7L 4-cyl gasoline

ENGINE DETAIL 1

The Allis Chalmers 175 tractor is powered by a Perkins 4.236 diesel engine, featuring a robust 236 ci (3.9 L) displacement and 16:1 compression ratio, providing a balanced combination of torque and efficiency at rated RPM of 2000. Its dry air cleaner system reduces maintenance needs but may require more frequent checks in dusty environments compared to oil bath systems. The design benefits from a reliable 12-volt starter system, ensuring adequate power for ignition in various conditions; however, users should be aware of the engine's limited RPM range which may constrain high-speed operations.

Description Perkins 4.236/diesel/4-cylinder/liquid-cooled/Original diesel engine, used through Allis 175 serial number 1458.
Displacement 236 ci/3.9 L
Bore/Stroke 3.875x5.00 inches/98 x 127 mm
Air cleaner dry
Compression 16:1
Rated RPM 2000
Starter volts 12

ENGINE DETAIL 2

The Allis Chalmers 175 features a Perkins 4.248 diesel engine with a robust displacement of 248 ci, providing efficient torque for agricultural applications. Its 16:1 compression ratio offers a balance of power and fuel efficiency, ideal for heavier tasks at a rated RPM of 2000, while its 8-quart oil and 15-quart coolant capacities ensure effective thermal management. However, note that the reliance on a dry air cleaner may necessitate more frequent maintenance in dusty environments to maintain optimal engine performance.

Description Perkins 4.248/diesel/4-cylinder/liquid-cooled/The 248 cubic-inch diesel was used in the Allis 175 starting in December of 1970, serial number 1459.
Displacement 248 ci/4.1 L
Bore/Stroke 3.975x5.00 inches/101 x 127 mm
Air cleaner dry
Compression 16:1
Rated RPM 2000
Starter volts 12
Oil capacity 8 qts/7.6 L
Coolant capacity 15 qts/14.2 L

ENGINE DETAIL 3

The Allis-Chalmers 175 tractor features a G226 gasoline engine with a displacement of 226 ci (3.7 L) and a compression ratio of 8.2:1, making it suitable for moderate power applications at a rated RPM of 1800. The dry air cleaner system enhances engine longevity by preventing particulates from entering the combustion chamber but may require more frequent maintenance in dust-prone environments. With a coolant capacity of 15 qts, effective thermal management is critical to maintain performance, especially during prolonged use.

Description Allis-Chalmers G226/gasoline/4-cylinder/liquid-cooled/The gasoline engine was avaialble on the Allis-Chalmers 175 until 1976.
Displacement 226 ci/3.7 L
Bore/Stroke 4.00x4.50 inches/102 x 114 mm
Air cleaner dry
Compression 8.2:1
Rated RPM 1800
Starter volts 12
Oil capacity 7 qts/6.6 L
Coolant capacity 15 qts/14.2 L

ALLIS CHALMERS 175 ENGINES

The Allis Chalmers 175 tractor is equipped with various engine options, including the Perkins 3.9L and 4.1L diesel engines, as well as the Allis-Chalmers 3.7L gasoline engine, offering flexibility for fuel preference and application. The Perkins diesel engines provide superior torque and fuel efficiency, ideal for heavy-duty agricultural operations, while the gasoline engine offers simpler maintenance and lower initial cost. However, diesel engines may require a higher upfront investment and complex emissions systems, which can be a consideration for users with budget constraints or those focusing on light-duty tasks.

Description Perkins 3.9L 4-cyl diesel/Perkins 4.1L 4-cyl diesel/Allis-Chalmers 3.7L 4-cyl gasoline

TRANSMISSION

The Allis Chalmers 175 features a partial power shift transmission via the Allis-Chalmers Power Director, which allows for 8 forward and 2 reverse gears, enhancing operational flexibility. An oil capacity of 24 quarts (22.7 L) supports effective lubrication and cooling under varied working conditions. This tractor is well-suited for tasks requiring frequent speed adjustments, making it advantageous for both field and transport work but may necessitate regular maintenance of the transmission for optimal performance.

Transmission Allis-Chalmers Power Director
Type partial power shift
Gears 8 forward and 2 reverse
Oil capacity 24 qts/22.7 L

SPEEDS

Description With 16.9-28 rear tires./

MECHANICAL

The Allis Chalmers 175 features a 4x2 2WD chassis which may limit traction on uneven terrain, making it less suitable for demanding agricultural applications. Its hydrostatic power steering enhances maneuverability in tight spaces, while the 8-speed partial power shift transmission allows for smoother gear transitions, improving efficiency during field operations. However, the open operator station may expose the operator to weather elements, impacting comfort during extended work periods; optional ROPS can enhance safety if used.

Chassis 4x2 2WD
Steering hydrostatic power
Brakes differential mechanical band and disc
Cab Open operator station. Two-post ROPS optional with canopy.
Transmission 8-speed partial power shift

CAPACITY

Fuel 18.5 gal/70.0 L
Hydraulic system 7 gal/26.5 L

HYDRAULICS

Capacity 7 gal/26.5 L
Valves 3

TRACTOR HITCH

Rear Type II

POWER TAKE-OFF (PTO)

Rear PTO live
Rear RPM 540

ALLIS CHALMERS 175 TIRES

The Allis Chalmers 175 tractor features agricultural front tires sized 7.50-16, which provide good maneuverability in tight spaces, while the rear tires options of 12.4-38, 15.5-38, or 18.4-28 offer varying levels of traction and stability for different load and soil conditions. The choice of rear tire size can significantly impact performance; wider tires enhance flotation in softer soils but may reduce soil compaction capabilities. Additionally, the tractor's overall weight distribution and power-to-weight ratio are crucial for effective operation during fieldwork or transporting heavy implements.

Ag front 7.50-16
Ag rear 12.4-38/15.5-38/18.4-28

DIMENSIONS

Wheelbase 93 inches/236 cm
Length 136.5 inches/346 cm
Width 76.6 inches/194 cm
Weight 7,830 lbs/3551 kg
Clearance (front axle) 21.5 inches/54 cm
Clearance (drawbar) 16 inches/40 cm
Front tread 53 to 78 inches/134 to 198 cm
Rear tread 53 to 93 inches/134 to 236 cm

ALLIS CHALMERS 175 HEIGHT

Steering wheel 67.7 inches/171 cm
Hood 59.8 inches/151 cm
Exhaust 91 inches/231 cm

DIMENSIONS & TIRES

The Allis Chalmers 175 tractor features a 93-inch wheelbase, providing stability and improved maneuverability for various agricultural tasks. Weighing 7,830 lbs, it offers substantial traction and durability but may pose challenges in transport and terrain navigation. The tire specifications (Front: 6.50-16, Rear: 16.9-28) indicate good flotation and grip, making it suitable for both fieldwork and light loader tasks in moderate soil conditions.

Wheelbase 93 inches/236 cm
Weight 7,830 lbs/3551 kg
Front tire 6.50-16
Rear tire 16.9-28

175 SERIAL NUMBERS

Location Torque housing
1970 1001
1971 1477
1972 1624
1973 1740
1974 2153
1975 3255
1976 3754
1977 4809
1978 5670
1979 6321
1980 6999
Final 7502

ELECTRICAL

Charging system alternator
Battery volts 12


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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