Bolens 728
The Bolens 728 is a tractor produced by Bolens Lawn Tractors. It is equipped with a 245 cc 15 ci engine. The listed engine power is Gasoline (gross): 7 hp / 5.2 kW. Transmission: Peerless 503. Operating weight: 325 lbs 147 kg.
Engine Power
Gasoline (gross): 7 hp / 5.2 kW
Fuel & Capacities
0.5 gal
1.9 L
Transmission
Peerless 503
Operating Weight
325 lbs
147 kg
Overview
![]() | 1972 - 1973
Riding lawn mower |
|---|
Production | |
|---|---|
Manufacturer | Bolens |
Riding lawn mower | |
Bolens 728 Engine | |
|---|---|
7HP Tecumseh 245cc 1-cyl gasoline | |
Fuel tank | 0.5 gal
1.9 L |
Engine details ... | |
Bolens 728 Transmission | |
|---|---|
3-speed gear | |
Transmission details ... |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Mechanical disc brakes | |
Open operator station. |
Power Take-off (PTO) | |
|---|---|
Mid PTO | independent |
Clutch | manual |
Dimensions & Tires | |
|---|---|
Wheelbase | 43 inches
109 cm |
Weight | 325 lbs
147 kg |
Front tire | 4.10/3.50-4 |
Rear tire | 4.80x4.00-8 |
Full dimensions and tires ... | |
References | |
|---|---|
![]() | |
Riding Mower Service Manual (552568-3) published in 1980 |
Engine
Engine Detail — 245 cc / 15 ci Gasoline
Manufacturer | Tecumseh V70 |
Fuel Type | Gasoline |
Configuration | 1-cylinder, air-cooled vertical-shaft |
Displacement | 245 cc
15 ci |
Bore/Stroke | 2.75x2.53 inches
70 x 64 mm |
Power (gross) | 7 hp
5.2 kW |
Starter type | manual recoil |
Sparkplug | Champion J-8 |
Sparkplug gap | 0.030 inches
0.762 mm |
Point gap | 0.020 inches
0.508 mm |
Oil capacity | 0.8 qts
0.8 L |
Oil change | 25 h |
Transmission
Transmission — Peerless 503
Transmission | Peerless 503 |
Type | belt-driven gear |
Gears | 3 forward and 1 reverse |
![]() | |
Dimensions
Bolens 728 Tires | |
|---|---|
Lawn/turf front | 4.10/3.50-4 |
Lawn/turf rear | 4.80x4.00-8 |
Dimensions | |
|---|---|
Wheelbase | 43 inches
109 cm |
Length | 61 inches
154 cm |
Height | 41 inches
104 cm |
Weight | 325 lbs
147 kg |
Attachments
28" Mower deck | |
|---|---|
Type | mid-mount Bolens |
1-blade | |
Cutting width | 28 inches
71 cm |
Overall width | 36 inches
91 cm |
Cut height | 1 to 4 inch
2 to 10 cm |
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Bolens Lawn Tractors Bolens 728.
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Bolens Lawn Tractors Bolens 728 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Bolens Lawn Tractors Bolens 728.
Converted Equivalents:
Horsepower (HP)7 hp
Kilowatts (kW)5.2 kW
Metric Horsepower (PS / CV)7.1 PS
Related models
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- Power:
- 6
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- 1962 - 1965
Bolens lawn tractors 610
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Bolens lawn tractors 613
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Bolens lawn tractors 628
- Power:
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- Production years:
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Bolens lawn tractors 650
- Power:
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- Production years:
- 1966 - 1966


