Yard-Man lawn tractors 3420 lawn tractor

Yard-Man lawn tractors 3420

Power

5 hp

Production

1970-1972

Engine

Gasoline, 1-cylinder

Drive

2WD

Introduction

Yard-Man 3420 Riding Lawn Mower

Produced between 1970 and 1972 in Jackson, Michigan, the Yard-Man 3420 is a riding lawn mower designed for residential turf maintenance. This machine reflects the standard engineering of the era, focusing on simplicity and mechanical reliability for small-scale garden tasks.

Engine and Powertrain

The unit is powered by a single-cylinder, air-cooled Briggs & Stratton 130904 gasoline engine. It produces a gross power output of 5 hp (3.7 kW) from a 206 cc displacement. The engine features a vertical shaft configuration and is equipped with an electric starter powered by a 12-volt electrical system with a negative ground.

Transmission and Operation

The drivetrain consists of a manual transmission providing two forward gears and one reverse gear. Power delivery to the mowing equipment is managed via an independent mid-power take-off (PTO), which is engaged through a manual clutch. The tractor utilizes a two-wheel-drive system and manual steering, managed from an open operator station.

Mowing Deck and Mobility

The mower is equipped with a 25-inch cutting deck. To minimize soil compaction and ensure traction on lawn surfaces, the machine uses specific turf tires, measuring 10.5x3.50 at the front and 13x4.50 at the rear.

Conclusion

The Yard-Man 3420 is a compact, utility-focused lawn tractor suited for basic grass cutting duties. Its straightforward mechanical design and ease of operation make it a representative example of early 1970s American lawn care equipment.

Production Information of Yard-Man lawn tractors, 3420

  • Original price was $380 in 1970
  • Riding lawn mower
  • Built in Jackson, Michigan, USA
ManufacturerYard-Man

Dimension and Tires Information of Yard-Man lawn tractors, 3420

Lawn/turf front10.5x3.50
Lawn/turf rear13x4.50

Engine Specifications of Yard-Man lawn tractors, 3420

  • Briggs & Stratton 130904
  • Air-cooled vertical-shaft
  • Gasoline
  • 1-cylinder
Power (gross)5 hp [3.7 kW]
Displacement206 cc [12.57 ci]
StarterElectric
Bore/Stroke2.5625x2.4375 inches [65 x 62 mm]
Starter volts12

Transmission Information of Yard-Man lawn tractors, 3420

Transmission variants 1

Gears2 forward and 1 reverse

Mechanical Specs of Yard-Man lawn tractors, 3420

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

Power Information of Yard-Man lawn tractors, 3420

Mid PTOIndependent
ClutchManual

Electrical System of Yard-Man lawn tractors, 3420

GroundNegative
Battery volts12

Where it sits

With 5 HP, the Yard-Man lawn tractors 3420 sits between 3170 (4 HP) and 3180 (6 HP) in Yard-Man lawn tractors's range. Its power puts it in the 10th percentile of 1970s models in our database (1008 machines).

Frequently asked questions

How much horsepower does the Yard-Man lawn tractors 3420 have?

The Yard-Man lawn tractors 3420 delivers 5 HP.

What years was the Yard-Man lawn tractors 3420 produced?

The Yard-Man lawn tractors 3420 was produced in 1970-1972.

What engine does the Yard-Man lawn tractors 3420 have?

The Yard-Man lawn tractors 3420 is powered by a Gasoline, 1-cylinder engine.

Is the Yard-Man lawn tractors 3420 4WD?

The Yard-Man lawn tractors 3420 is available in 2WD.

Compare the Yard-Man lawn tractors 3420 with another model