Wheel Horse A-51 lawn tractor

Wheel Horse A-51

Power

5 hp

Production

1978-1982

Engine

Gasoline, 1-cylinder

Transmission

Peerless 724A

Weight

339 lbs [153 kg]

Drive

2WD

From the same series:

A-81

Introduction

Wheel Horse A-51 Riding Lawn Mower

The Wheel Horse A-51 is a compact riding lawn mower produced between 1978 and 1982. Designed for residential lawn maintenance, this machine belongs to the entry-level segment of the era's garden equipment, offering straightforward mechanical operation and basic utility features.

Engine Specifications

The mower is powered by a Briggs & Stratton 130902 gasoline engine. This air-cooled, single-cylinder unit produces a gross power output of 5 hp (3.7 kW). It features a vertical-shaft configuration with a displacement of 206 cc (12.57 ci) and a bore/stroke ratio of 2.5625 by 2.4375 inches. The engine is activated via a manual recoil starter.

Transmission and Drive

The A-51 utilizes a Peerless 724A transmission system. It is a belt-driven gear transmission that provides the operator with 5 forward gears and 1 reverse gear, allowing for speed adjustment during mowing operations. The machine operates with a two-wheel drive system and manual steering, characterized by its simplicity and ease of maintenance.

Mowing and Mechanical Utility

The unit is equipped with a 32-inch mower deck. It includes an independent mid-mounted power take-off (PTO) to drive the cutting deck, managed by a mechanical idler pulley clutch. The operator station is of an open design, emphasizing visibility and accessibility during operation.

Dimensions and Handling

With a wheelbase of 40.4 inches (102 cm) and an overall length of 54 inches (137 cm), the A-51 is built for maneuverability in confined spaces. The shipping weight is 339 lbs (153 kg). It rolls on turf-specific tires, with 11x4.50-5 tires at the front and 13x6.50-6 tires at the rear, providing stability on established lawns.

Conclusion

The Wheel Horse A-51 is a functional, entry-level riding mower well-suited for standard residential lawn care tasks. Its simple mechanical design and modest power output prioritize ease of use and reliability for private garden maintenance.

Production Information of Wheel Horse, A-51

  • Riding lawn mower
  • Original price was $550 in 1978
ManufacturerWheel Horse

Dimension and Tires Information of Wheel Horse, A-51

Wheelbase40.4 inches [102 cm]
Shipping weight339 lbs [153 kg]
Length54 inches [137 cm]
Height (steering wheel)40 inches [101 cm]
Lawn/turf front11x4.50-5
Lawn/turf rear13x6.50-6

Engine Specifications of Wheel Horse, A-51

  • Briggs & Stratton 130902
  • Air-cooled vertical-shaft
  • Gasoline
  • 1-cylinder
Power (gross)5 hp [3.7 kW]
Displacement206 cc [12.57 ci]
Starter typeManual recoil
Bore/Stroke2.5625x2.4375 inches [65 x 62 mm]

Transmission Information of Wheel Horse, A-51

Transmission variants 1

TransmissionPeerless 724A
TypeBelt-driven gear
Gears5 forward and 1 reverse

Mechanical Specs of Wheel Horse, A-51

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

Power Information of Wheel Horse, A-51

Mid PTOIndependent
ClutchMechanical idler pulley

Where it sits

With 5 HP, the Wheel Horse A-51 sits just below A-81 (8 HP) in Wheel Horse'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 Wheel Horse A-51 have?

The Wheel Horse A-51 delivers 5 HP.

What years was the Wheel Horse A-51 produced?

The Wheel Horse A-51 was produced in 1978-1982.

What engine does the Wheel Horse A-51 have?

The Wheel Horse A-51 is powered by a Gasoline, 1-cylinder engine.

What transmission does the Wheel Horse A-51 use?

The Wheel Horse A-51 uses a Peerless 724A transmission.

How much does the Wheel Horse A-51 weigh?

The Wheel Horse A-51 weighs 339 lbs [153 kg].

Is the Wheel Horse A-51 4WD?

The Wheel Horse A-51 is available in 2WD.

Compare the Wheel Horse A-51 with another model