Bolens 728
Power
7 hp
Production
1972-1973
Transmission
Peerless 503
Weight
325 lbs [147 kg]
Drive
2WD
From the same series:
Introduction
Bolens 728 Riding Lawn Mower
The Bolens 728 is a compact riding lawn mower produced between 1972 and 1973. Designed for residential lawn care and grounds maintenance, this model emphasizes functional simplicity and maneuverability.
Engine and Performance
The tractor is powered by an air-cooled, vertical-shaft engine producing 7 horsepower (5.2 kW). It features a 245 cc (15 ci) displacement with a bore and stroke of 70 x 64 mm. Maintenance requirements include an oil capacity of 0.8 liters with recommended oil changes every 25 hours. The engine utilizes a Champion J-8 sparkplug with a gap of 0.030 inches and a point gap of 0.508 mm, started via a manual recoil system.
Transmission and Drivetrain
Power is transferred through a Peerless 503 belt-driven gear transmission, providing the operator with three forward speeds and one reverse gear. This configuration allows for adjustable operating speeds suitable for varied mowing conditions. The unit is a two-wheel drive machine, operated via a manual clutch.
Mechanical and Operator Interface
The Bolens 728 features manual steering and mechanical disc brakes, ensuring direct control for the operator. The unit is designed with an open operator station for visibility. It includes an independent mid-mounted Power Take-Off (PTO) to facilitate the operation of attachments, such as the compatible 28-inch mower deck.
Dimensions and Tires
The chassis spans a wheelbase of 43 inches (109 cm), with an overall length of 61 inches (154 cm) and a height of 41 inches (104 cm). The machine has a dry weight of 325 lbs (147 kg). It is equipped with lawn and turf tires, utilizing 4.10/3.50-4 tires on the front and 4.80x4.00-8 tires on the rear to minimize soil compaction during operation.
Conclusion
The Bolens 728 is a straightforward, mechanical riding mower suited for small-to-medium lawn maintenance tasks. Its combination of a 7 hp engine and a 28-inch deck provides a reliable solution for residential users seeking a durable, vintage-era mowing machine.
Production Information of Bolens, 728
- Riding lawn mower
| Manufacturer | Bolens |
|---|
Dimension and Tires Information of Bolens, 728
| Wheelbase | 43 inches [109 cm] |
|---|---|
| Weight | 325 lbs [147 kg] |
| Length | 61 inches [154 cm] |
| Height | 41 inches [104 cm] |
| Lawn/turf front | 4.10/3.50-4 |
|---|---|
| Lawn/turf rear | 4.80x4.00-8 |
Engine Specifications of Bolens, 728
- Air-cooled vertical-shaft
| Point gap | 0.020 inches [0.508 mm] |
|---|---|
| Displacement | 245 cc [15 ci] |
| Oil capacity | 0.8 qts [0.8 L] |
| Starter type | Manual recoil |
| Bore/Stroke | 2.75x2.53 inches [70 x 64 mm] |
| Oil change | 25 h |
| Sparkplug gap | 0.030 inches [0.762 mm] |
| Sparkplug | Champion J-8 |
| Power (gross) | 7 hp [5.2 kW] |
Transmission Information of Bolens, 728
Transmission variants 1
| Transmission | Peerless 503 |
|---|---|
| Type | Belt-driven gear |
| Gears | 3 forward and 1 reverse |
Mechanical Specs of Bolens, 728
- Two-wheel drive
- Open operator station.
- Manual steering
- Mechanical disc brakes
Power Information of Bolens, 728
| Mid PTO | Independent |
|---|---|
| Clutch | Manual |
Where it sits
With 7 HP, the Bolens 728 sits just below 828 (8 HP) in Bolens's range. Its power puts it in the 22th percentile of 1970s models in our database (1008 machines).
Frequently asked questions
How much horsepower does the Bolens 728 have?
The Bolens 728 delivers 7 HP.
What years was the Bolens 728 produced?
The Bolens 728 was produced in 1972-1973.
What transmission does the Bolens 728 use?
The Bolens 728 uses a Peerless 503 transmission.
How much does the Bolens 728 weigh?
The Bolens 728 weighs 325 lbs [147 kg].
Is the Bolens 728 4WD?
The Bolens 728 is available in 2WD.