Bolens HT23

Bolens HT23The Bolens HT23 is a garden tractor model from the Large Frame series, manufactured from 1979 to 1987 by Bolens in Port Washington, Wisconsin, USA. It was available in two-wheel drive (2WD) version.

The Bolens HT23 is equipped with a 946 cc (57.7 cu·in) two-cylinder gasoline engine with 88.9 mm (3.5 in) of the cylinder bore and 76.2 mm (3.0 in) of the piston stroke, and a shaft-driven hydrostatic transmission with infinite (2-range) forward and reverse gears.

The Bolens HT23 garden tractor features:

  • The Kohler K582 gasoline engine which produces 23.4 PS (17.2 kW; 23.0 HP) at 3,600 rpm of horsepower
  • Manual steering
  • Disc brakes
  • Open operator station
  • Category 0 rear hitch (optional) with kg (0 lbs) of maximum lift capacity.
  • Front PTO with 2000 rpm

General specifications

General Specifications
ModelBolens HT23
Tractor typeGarden tractor
Production years1979-1987
FactoryPort Washington, Wisconsin, USA
Dimensions and weight
Length1,900 mm (74.8 in)
Width1,160 mm (45.7 in)
Height1,140 mm (44.9 in)
Wheel base1,320 mm (52 in)
Ground clearance210 mm (8.3 in)
Weight498 kg (1,098 lbs)
Fuel capacity
Fuel tank capacity18.9 liters (5.0 US gal.; 4.2 Imp. gal)


Engine Specifications
Engine modelKohler K582
Engine type4-stroke, L-head (side valve), 2-cylinder
Displacement946 cm3, (57.7 cu·in)
Bore and stroke88.9 mm X 76.2 mm (3.50 in X 3.00 in)
Max. horsepower23.4 PS (17.2 kW; 23.0 HP) at 3,600 rpm
Cooling systemForced air
Lubricating systemSplash type
Fuel systemCarburetor
Starting systemElectirc starter
Valve clearance
Intake valve clearance:0.20-0.25 mm (0.008-0.010 in)
Exhaust valve clearance:0.43-0.48 mm (0.017-0.019 in)
Oil system
Lubrication system:Splash type
Oil type:API SF or SG
Recommended oil: Summer: SAE 30W
Winter: SAE 5W-20, 5W-30
Oil capacity:7.6 L (8.0 US. qt, 6.7 Imp. qt.)
Ignition system
Spark plug:Champion RH10
Spark plug gap:0.65 mm (0.0256 in)
Spark plug torque:27 N·m (2.8 kg·m, 19.9 ft·lb)

Transmission and chassis

Chassis, steering and brakes
Chassis4×2 2WD
Steering typeManual
BrakesDisc brakes
Transmission manufacturer or modelEaton 11
Transmission typeShaft-driven hydrostatic
GearsInfinite (2-range) forward and reverse
Speed Forward: 16.1 kmh (10.0 mph)
Reverse: 8.0 kmh (5.0 mph)
Transmission oil capacity9.5 L (2.5 US. gal, 2.1 Imp. gal.)


Front tires Lawn/turf: 18-8.50×8
Rear tires Lawn/turf: 26-12.00×12

Rear Hitch

Three-Point Hitch
Category0 (optional)
Control type
Lift capacity (at ends)

PTO (Power take-off shaft)

Front PTO type
Front PTO speed2000 rpm

Electrical system

Electrical system
Charging systemAlternator
Charging amps15A
Battery12V, 45Ah


Bolens 54″ mid-mount mower deck
Cutting width1,370 mm (54 in)
Bolens 54″ front-mount blade
Cutting width1,370 mm (54 in)
Bolens 42″ front-mount single-stage snow blower
Width1,060 mm (42 in)
Bolens 48″ front-mount two-stage snow blower
Width1,210 mm (48 in)
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.

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