Allis Chalmers 611 lawn tractor

Allis Chalmers 611

Power

11 hp

Production

1977-1979

Engine

Gasoline, 1-cylinder

Transmission

Belt-driven gear

Drive

2WD

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Introduction

Allis-Chalmers 611 Lawn Tractor

The Allis-Chalmers 611 is a lawn tractor produced between 1977 and 1979 in Port Washington, Wisconsin, USA. Designed for residential turf maintenance, this machine belongs to the compact tractor segment of the late 1970s.

Engine and Powertrain

The tractor is powered by a single-cylinder, air-cooled Briggs & Stratton 251707 gasoline engine. It features a vertical-shaft configuration with a displacement of 399 cc (24.36 ci). Rated at 11 hp (8.2 kW) at 3600 RPM, the engine is paired with a belt-driven gear transmission providing three forward speeds and one reverse gear. An electric starter system with a 12-volt battery facilitates operation.

Mechanical and Operator Station

The 611 model utilizes a two-wheel drive system and manual steering for simple navigation. Braking is handled by a disc system. The operator station is of an open design, focusing on accessibility and visibility for the user during lawn care tasks.

Dimensions and Tires

The machine measures 62.75 inches in length and 35 inches in width, with a wheelbase of 45.5 inches and a ground clearance of 5.5 inches. It is equipped with turf-specific tires, utilizing 13-5.00x6 tires on the front and 18-9.50x8 tires on the rear, designed to provide traction while minimizing turf disruption.

Conclusion

The Allis-Chalmers 611 is a straightforward, utility-focused lawn tractor equipped with a 36-inch mower deck. Its compact dimensions and manual control layout make it suitable for standard residential lawn maintenance and light groundskeeping tasks.

Production Information of Allis Chalmers, 611

  • Lawn tractor
  • Built in Port Washington, Wisconsin, USA
ManufacturerAllis Chalmers

Dimension and Tires Information of Allis Chalmers, 611

Wheelbase45.5 inches [115 cm]
Ground clearance5.5 inches [13 cm]
Height39.3 inches [99 cm]
Length62.75 inches [159 cm]
Width35 inches [88 cm]
Lawn/turf front13-5.00x6
Lawn/turf rear18-9.50x8

Engine Specifications of Allis Chalmers, 611

  • Briggs & Stratton 251707
  • Air-cooled vertical-shaft
  • Gasoline
  • 1-cylinder
StarterElectric
Displacement399 cc [24.36 ci]
Air cleanerFoam
Bore/Stroke3.4375x2.325 inches [87 x 59 mm]
Starter volts12
Idle RPM1750-3400
Rated RPM3600
Power11 hp [8.2 kW]

Transmission Information of Allis Chalmers, 611

Transmission variants 1

TypeBelt-driven gear
Gears3 forward and 1 reverse

Mechanical Specs of Allis Chalmers, 611

  • Two-wheel drive
  • Open operator station.
  • Manual steering
  • Disc brakes

Electrical System of Allis Chalmers, 611

GroundNegative
Battery volts12

Where it sits

With 11 HP, the Allis Chalmers 611 sits just above 610 (10 HP) in Allis Chalmers's range. Its power puts it in the 69th percentile of 1970s models in our database (1008 machines).

Frequently asked questions

How much horsepower does the Allis Chalmers 611 have?

The Allis Chalmers 611 delivers 11 HP.

What years was the Allis Chalmers 611 produced?

The Allis Chalmers 611 was produced in 1977-1979.

What engine does the Allis Chalmers 611 have?

The Allis Chalmers 611 is powered by a Gasoline, 1-cylinder engine.

What transmission does the Allis Chalmers 611 use?

The Allis Chalmers 611 uses a Belt-driven gear transmission.

Is the Allis Chalmers 611 4WD?

The Allis Chalmers 611 is available in 2WD.

Compare the Allis Chalmers 611 with another model