· 1986 Unverified Bolens 3012H ST125 Bolens 3012H ST125 — Suburban Series · 13 hp. Reference specifications; pending source verification.
The Bolens 3012H ST125 is a lawn tractor model with a rated output of 13 hp, positioning it centrally within its class in terms of power. Manufactured from 1986 to 1987, this model utilises a 2-cylinder petrol air-cooled engine, which drives through two-wheel drive via a hydrostatic transmission. Its intended application is for areas of up to 200 acres. Specifications for both the UK and US models are available.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Richest spec table
48 rows
Production years
1986-1987
No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.
Specifications Description Maintenance Troubleshooting Ownership Reviews Q&A Docs & sources
Hover a source tag to verify UK metric US imperial
Manufacturer Bolens Reference
Garden tractor Reference
Built in Port Washington, Wisconsin, USA Reference
Two-wheel drive Reference
Manual steering Reference
Disc brakes Reference
Open operator station. Reference
3012G gear Reference
3012H hydrostatic Reference
12.5HP Briggs & Stratton 655cc 2-cyl gasoline Reference
Fuel tank 18.9 L Reference
Briggs & Stratton 404707 Reference
gasoline Reference
2-cylinder Reference
air-cooled vertical-shaft horizontally-opposed Reference
Displacement 40 ci Reference
Bore/Stroke 87 x 55 mm Reference
Power 9.3 kW Reference
Starter electric Reference
Starter volts 12 Reference
Oil capacity 1.4 L Reference
hydrostatic Reference
Transmission Eaton 7 Reference
Type belt-driven hydrostatic Reference
Gears infinite forward and reverse Reference
Mid PTO independent Reference
Clutch electric Reference
Wheelbase 114 cm Reference
Front tire 15x6.00-6 Reference
Rear tire 20x8.00-10 Reference
Lawn/turf front 15x6.00-6 Reference
Lawn/turf rear 20x8.00-10 Reference
Length 175 cm Reference
Width 87 cm Reference
Height 106 cm Reference
36" mid-mount mower deck Reference
snowblower Reference
blade Reference
Location: Serial number tag on the rear fender, under the tractor seat, on the left side. Reference
Ground negative Reference
Battery volts 12 Reference
Battery AH 45 Reference
36" mid-mount mower deck Reference
Snowblower Reference
Blade Reference
Type mid-mount Bolens Reference
Type 2-blade Reference
Cutting width 91 cm Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
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Request a quote Who it suits Operation size Up to 200 ac
Budget class Entry
Is it right for you? Operation size Under 200 ac 200–1,500 ac 1,500+ ac
Need a front loader? Yes No
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