Sears lawn tractors Tri-Cut
Power
5 hp
Production
1957-1959
Engine
1-cylinder
Weight
475 lbs [215 kg]
Drive
2WD
Introduction
David Bradley Tri-Cut Riding Lawn Mower
The David Bradley Tri-Cut is a riding lawn mower produced between 1957 and 1959. Distributed by Sears and manufactured in Bradley, Illinois, this machine served as a specialized tool for residential lawn maintenance during the late 1950s.
Engine and Performance
The tractor is powered by a single-cylinder, air-cooled, horizontal-shaft engine with a displacement of 304 cc. It generates a gross power output of 7 hp (5.2 kW) and delivers 11.95 lb-ft (16.2 Nm) of torque at 2400 RPM. The fuel system utilizes a carburetor, while the engine air is filtered through an oil bath system. The unit is typically equipped with a manual recoil starter, with an optional electric start system supported by a 12-volt battery.
Transmission and Drivetrain
The Tri-Cut features a two-wheel drive configuration managed via manual steering. The transmission options include a 2-speed or 1-speed setup, providing either two forward and one reverse gear or a single forward and reverse gear configuration. An independent mid-mounted Power Take-Off (PTO) is engaged through a manual clutch, allowing for the operation of the mower deck.
Dimensions and Equipment
Designed for compact lawn operation, the machine has a wheelbase of 38 inches (96 cm) and a total length of 53 inches (134 cm). The shipping weight is 475 lbs (215 kg). It was marketed with either a 47-inch or a 58-inch mower deck to accommodate different property sizes. The operator station is of an open design, emphasizing simplicity and visibility.
Conclusion
The David Bradley Tri-Cut represents a period-specific solution for homeowners requiring a dedicated, manual-steer riding mower. With its robust, air-cooled engine and flexible deck options, it was engineered for standard residential turf management tasks.
Production Information of Sears lawn tractors, Tri-Cut
- Built in Bradley, Illinois, USA
- Riding lawn mower
| Distributor | Sears |
|---|---|
| Original price | $470 (1958 6hp 47-inch ) |
| Manufacturer | David Bradley |
| Manufacturer(optional) | $770 (1959 7hp 58-inch ) |
Dimension and Tires Information of Sears lawn tractors, Tri-Cut
| Wheelbase | 38 inches [96 cm] |
|---|---|
| Rear tread | 35.5 inches [90 cm] |
| Length | 53 inches [134 cm] |
| Shipping weight | 475 lbs [215 kg] |
| Lawn/turf front | 3.25-10.25 (47) |
|---|---|
| Lawn/turf front(optional) | 4.80-8 (58) |
| Lawn/turf front(optional) | 4.50-6 (58) |
| Lawn/turf rear | 4.80-7 (47) |
Engine Specifications of Sears lawn tractors, Tri-Cut
- Air-cooled horizontal-shaft
- The 7hp engine was used on the Tri-Cut with a 58-inch mower deck.
- 1-cylinder
| Starter volts | 6 |
|---|---|
| Power (gross) | 7 hp [5.2 kW] |
| Fuel system | Carburetor |
| Torque | 11.95 lb-ft [16.2 Nm] |
| Air cleaner | Oil bath |
| Oil capacity | 1.5 qts [1.4 L] |
| Bore/Stroke | 3.00x2.875 inches [76 x 73 mm] |
| Displacement | 304 cc [18.56 ci] |
| Displacement(optional) | Electric |
| Starter | Manual recoil |
| Torque RPM | 2400 |
Transmission Information of Sears lawn tractors, Tri-Cut
Transmission variants 1
| Gears | 2 forward and 1 reverse |
|---|
Transmission variants 2
| Gears | 1 forward and reverse |
|---|
- 2-speed
- 1-speed
Mechanical Specs of Sears lawn tractors, Tri-Cut
- Two-wheel drive
- Manual steering
- Open operator station.
Power Information of Sears lawn tractors, Tri-Cut
| Mid PTO | Independent |
|---|---|
| Clutch | Manual |
Electrical System of Sears lawn tractors, Tri-Cut
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
With 5 HP, the Sears lawn tractors Tri-Cut sits just below 625 (6 HP) in Sears lawn tractors's range. Its power puts it in the 65th percentile of 1950s models in our database (65 machines).
Frequently asked questions
How much horsepower does the Sears lawn tractors Tri-Cut have?
The Sears lawn tractors Tri-Cut delivers 5 HP.
What years was the Sears lawn tractors Tri-Cut produced?
The Sears lawn tractors Tri-Cut was produced in 1957-1959.
What engine does the Sears lawn tractors Tri-Cut have?
The Sears lawn tractors Tri-Cut is powered by a 1-cylinder engine.
How much does the Sears lawn tractors Tri-Cut weigh?
The Sears lawn tractors Tri-Cut weighs 475 lbs [215 kg].
Is the Sears lawn tractors Tri-Cut 4WD?
The Sears lawn tractors Tri-Cut is available in 2WD.