Bolens 21HD Super Ride-A-Matic
The Bolens 21HD Super Ride-A-Matic is a tractor produced by Bolens Lawn Tractors. It is equipped with a 277 cc 16.94 ci engine. The listed engine power is Gasoline (listed): 6.5 hp / 4.8 kW. Transmission: Versa-matic. Operating weight: 460 lbs 208 kg.
Engine Power
Gasoline (listed): 6.5 hp / 4.8 kW
Fuel & Capacities
1 gal
3.8 L
Transmission
Versa-matic
Operating Weight
460 lbs
208 kg
Overview
 | 1957
Ride-A-Matic SeriesGarden tractor
Ride-A-Matic Series
Garden tractor |
|---|
Production | |
|---|---|
Manufacturer | Bolens |
Garden tractor | |
Built in Port Washington, Wisconsin, USA | |
Original price was $474 in 1957 | |
Bolens 21HD Engine | |
|---|---|
6.5HP Kohler 277cc 1-cyl gasoline | |
Fuel tank | 1 gal
3.8 L |
Engine details ...  | |
Bolens 21HD Transmission | |
|---|---|
6-speed CVT | |
Transmission details ...  |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Mechanical band brakes | |
Open operator station. |
Dimensions & Tires | |
|---|---|
Wheelbase | 41.5 inches
105 cm |
Weight | 460 lbs
208 kg |
Front tire | 4.00x8 |
Rear tire | 6-12 |
Full dimensions and tires ...  | |
References | |
|---|---|
 | |
Ride-a-matic published in 1957, by Bolens |
Engine
Engine Detail — 277 cc / 16.94 ci Gasoline
Manufacturer | Kohler K161 |
Fuel Type | Gasoline |
Configuration | 1-cylinder, air-cooled |
Displacement | 277 cc
16.94 ci |
Bore/Stroke | 2.875x2.50 inches
73 x 64 mm |
Power | 6.5 hp
4.8 kW |
Starter type | manual recoil |
electric OptOptional |
Transmission
Transmission — Versa-matic
Transmission | Versa-matic |
Type | belt-driven CVT |
Gears | 6 forward and 1 reverse |
Variable-geometry drive pulley with six positions on the control lever. Interchangeable drive sprockets provides high and low ranges. | |
 | |
Dimensions
Bolens 21HD Tires | |
|---|---|
Lawn/turf front | 4.00x8 |
Lawn/turf rear | 6-12 |
Dimensions | |
|---|---|
Wheelbase | 41.5 inches
105 cm |
Length | 61.5 inches
156 cm |
Width | 30.5 inches
77 cm |
Height | 37 inches
93 cm |
Shipping weight | 460 lbs
208 kg |
Front tread | 25.5 inches
64 cm |
Rear tread | 24.5 inches
62 cm |
Attachments
Attachment overview | |
|---|---|
36" mid-mount mower deck | |
Snowblower | |
Blade | |
Garden tractors are capable of using tillers, plows, or other ground-engaging attachments. TractorData does not list details of these attachments. |
36" Mower deck | |
|---|---|
Type | mid-mount Bolens |
Cutting width | 36 inches
91 cm |
Photos
Bolens 21HD Super Ride-A-Matic
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Bolens Lawn Tractors Bolens 21HD Super Ride-A-Matic.
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 21HD Super Ride-A-Matic Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Bolens Lawn Tractors Bolens 21HD Super Ride-A-Matic.
Converted Equivalents:
Horsepower (HP)6.5 hp
Kilowatts (kW)4.8 kW
Metric Horsepower (PS / CV)6.6 PS
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