Simplicity SunRunner 12H
Power
12 hp
Production
1987-1989
Engine
1-cylinder
Transmission
Belt-driven hydrostatic
Weight
529 lbs [239 kg]
Drive
2WD
From the same series:
Introduction
Simplicity SunRunner 12H, Compact Lawn Tractor
The Simplicity SunRunner 12H is a compact tractor model designed for lawn and property maintenance, manufactured between 1987 and 1989. It is engineered specifically for front-mount mower applications, serving as a versatile machine for residential landscaping tasks.
Engine and Powertrain
The tractor is powered by a 12 hp (8.9 kW) single-cylinder, air-cooled engine with a 465 cc displacement. The engine features a vertical-shaft configuration and utilizes an electric starter powered by a 12-volt system. Power is managed through a belt-driven hydrostatic transmission, allowing for infinite forward and reverse speeds, and is engaged via a mechanical idler pulley clutch.
Mechanical Configuration
Built as a two-wheel drive machine, the SunRunner 12H is operated from an open station. Steering is handled via a manual system, and braking is provided by mechanical band brakes. The unit is designed with a 40-inch wheelbase and weighs 239 kg, ensuring a compact footprint for maneuverability in tight areas.
Mowing and Dimensions
The tractor is designed to accommodate a 36-inch or 42-inch mower deck. It is equipped with specialized lawn and turf tires, measuring 15x6-6.00 at the front and 4.1/3.5-4 at the rear, to minimize ground disturbance during operation. The machine is further equipped with an independent front PTO to drive the front-mounted attachments.
Conclusion
The Simplicity SunRunner 12H is a specialized lawn care tractor suited for property owners requiring a compact, maneuverable machine for grass cutting. Its hydrostatic transmission and dedicated front-mount mowing capabilities make it a functional choice for routine lawn maintenance.
Production Information of Simplicity, SunRunner 12H
- Front-mount mower
| Manufacturer | Simplicity |
|---|
Dimension and Tires Information of Simplicity, SunRunner 12H
| Weight | 529 lbs [239 kg] |
|---|---|
| Wheelbase | 40 inches [101 cm] |
| Height (steering wheel) | 42 inches [106 cm] |
| Width | 36 inches [91 cm] |
| Length | 64 inches [162 cm] |
| Height (hood) | 24.5 inches [62 cm] |
| Height (hood)(optional) | 83.75 inches [212 cm] |
Tractor only
| Lawn/turf front | 15x6-6.00 |
|---|---|
| Lawn/turf rear | 4.1/3.5-4 |
Engine Specifications of Simplicity, SunRunner 12H
- Air-cooled vertical-shaft
- Image courtesy of Joe Hancaviz
- 1-cylinder
| Power | 12 hp [8.9 kW] |
|---|---|
| Displacement | 465 cc [28.42 ci] |
| Starter | Electric |
| Bore/Stroke | 3.44x3.06 inches [87 x 78 mm] |
| Oil change | 25 h |
| Starter volts | 12 |
Transmission Information of Simplicity, SunRunner 12H
Transmission variants 1
| Type | Belt-driven hydrostatic |
|---|---|
| Type(optional) | Simplicity Multipurpose Hydraulic/Transmission Oil |
| Gears | Infinite forward and reverse |
| Oil type | Simplicity Multipurpose Hydraulic/Transmission Oil |
Mechanical Specs of Simplicity, SunRunner 12H
- Two-wheel drive
- Open operator station.
- Manual steering
- Mechanical band brakes
Power Information of Simplicity, SunRunner 12H
| Front PTO | Independent |
|---|---|
| Clutch | Mechanical ilder pulley |
Electrical System of Simplicity, SunRunner 12H
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
Its power puts it in the 56th percentile of 1980s models in our database (977 machines).
Frequently asked questions
How much horsepower does the Simplicity SunRunner 12H have?
The Simplicity SunRunner 12H delivers 12 HP.
What years was the Simplicity SunRunner 12H produced?
The Simplicity SunRunner 12H was produced in 1987-1989.
What engine does the Simplicity SunRunner 12H have?
The Simplicity SunRunner 12H is powered by a 1-cylinder engine.
What transmission does the Simplicity SunRunner 12H use?
The Simplicity SunRunner 12H uses a Belt-driven hydrostatic transmission.
How much does the Simplicity SunRunner 12H weigh?
The Simplicity SunRunner 12H weighs 529 lbs [239 kg].
Is the Simplicity SunRunner 12H 4WD?
The Simplicity SunRunner 12H is available in 2WD.