The Bolens 1257 is a lawn tractor with a rated output of 12 hp, positioning it centrally within its class in terms of power. This model was manufactured in 1971. It features a 1-cylinder petrol air-cooled engine, transmitting power through a hydrostatic transmission to its two-wheel drive system. The listed weight of the Bolens 1257 is 308 kg, making it suitable for areas of up to 200 acres.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
12 hp
Weight
308 kg
Catalogue coverage
Variants represented
2
Richest spec table
35 rows
Recorded power
12 hp
Recorded weight
308 kg
Transmissions
hydrostatic
Production years
1971-1971
Verified variants
0
No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.
Hover a source tag to verify
Overview
ManufacturerBolensReference
Garden tractorReference
Two-wheel driveReference
SteeringmanualReference
Open operator stationReference
Engine
12HP Tecumseh 453cc 1-cyl gasolineReference
Tecumseh HH120Reference
gasolineReference
1-cylinderReference
air-cooledReference
Displacement27.66 ciReference
Bore/Stroke89 x 73 mmReference
Power8.9 kWReference
Rated RPM3600Reference
StarterelectricReference
Starter volts12Reference
Transmission
hydrostaticReference
TransmissionEaton 10Reference
TypehydrostaticReference
Gearsinfinite forward and reverseReference
Dimensions
Wheelbase109 cmReference
Weight308 kgReference
Front tire16x6.50-8Reference
Rear tire23x10.50-12Reference
Lawn/turf front16x6.50-8Reference
Lawn/turf rear23x10.50-12Reference
Length160 cmReference
Width86 cmReference
Height101 cmReference
Shipping weight308 kgReference
Bolens 1257 attachments
mid-mount mower deckReference
Electrical
GroundnegativeReference
Battery volts12Reference
Mower deck
Typemid-mount BolensReference
Type3-bladeReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
