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Honda Vertical OHC Engine — 187cc, GSV Series, 1in. x 3 5/32in. Shaft, Model# GSV190LAA3T

Item# 44365
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Honda Vertical OHC Engine — 187cc, GSV Series, 1in. x 3 5/32in. Shaft, Model# GSV190LAA3T

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Only $299.99
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  • Incredibly quiet and has an internal timing belt
  • Compact, lightweight, air-cooled 4-stroke single cylinder engine is a great choice for home and light industrial use
  • Common applications include pressure washers, lawn mowers, commercial lawn and garden
  • Does not fit Honda PE Products with metric shaft
  • Toro Spec for Commercial Lawn Equipment
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Product Summary

The Honda Vertical OHC Engine offers the best of two worlds. Higher durability, with features like a cast iron cylinder liner and three-piece oil control, plus the benefits of a lightweight, compact, quiet OHC design. It's an excellent choice for demanding homeowner applications and commercial equipment alike.

What's Included
  •  (1) Engine

Features + Benefits

  • Incredibly quiet and has an internal timing belt
  • Compact, lightweight, air-cooled 4-stroke single cylinder engine is a great choice for home and light industrial use
  • Common applications include pressure washers, lawn mowers, commercial lawn and garden
  • Does not fit Honda PE Products with metric shaft
  • Toro Spec for Commercial Lawn Equipment
Key Specs
Item# 44365
Brand Honda Engines
Manufacturer's Warranty 2 years consumer use / 1 year commercial use
Ship Weight 35.0 lbs
Engine Displacement (cc) 187
Start Type Recoil
Application Toro commercial lawn equipment
Engine Type GSV series OHC
Net Power Output (HP) 5.1 (3.8 kW) at 3,600 RPM
Net Torque (lbs./ft.) 8.3 (11.3 Nm) at 2,500 RPM
Shaft Output Vertical
Crankshaft S3 type
Shaft Diameter (in.) 1
Shaft Length (in.) 3 5/32
Shaft Keyway (in.) 3/16
Shaft End Tapped (Diameter (in.)/Threads per inch) 3/8–24
Shaft Rotation (From PTO Shaft Side) Counterclockwise
Bearing Type Ball
Cylinders (qty.) 1
Cylinder Bore Cast iron
Bore x Stroke (in.) 2.7 x 2
Compression Ratio 8.5:1
Cooling System Air cooled
Air Cleaner Type Dual element
Fuel Tank Yes
Fuel Type Gasoline
Fuel Tank Capacity (qt.) 0.98
Fuel Pump Yes
Fuel Filter Yes
Oil Capacity (qt.) 0.58
Lubrication System Forced splash
Ignition System Electronic
Governor System Centrifugal mechanical
Carburetor Horizontal butterfly valve
Throttle Control Remote
Choke Control Remote (wire)
Max. RPM 3,600
Muffler Included Yes
Flywheel Brake Yes
Auto Compression Release Yes
Bolt Circle (in.) 8 1/2
Dimensions L x W x H (in.) 14 3/5 x 13 1/2 x 13 4/5
EPA/CARB Approval (California Air Resource Board) Yes

Customer Reviews

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Replacement Parts
Call To Order: 1-800-657-0516

Mon - Fri 7:00 AM - 6:00 PM (Central)
Sat 7:00 AM - 3:00 PM (Central)

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Hide Similarities
Engine Displacement (cc)
160 187 187 163 337
Start Type
Recoil Recoil Recoil Recoil Electric w/recoil backup
Application Walk-behind mower, chipper/vac Billy Goat lawn vac, commercial mower Toro commercial lawn equipment Walk-behind mower Commerical turf equipment, lawn tractor, riding mower
Engine Type GCV series OHC commercial-duty GSV series OHC GSV series OHC GXV series OHV commercial-duty GXV series OHV commercial-duty
Net Power Output (HP) 4.4 (3.3 kW) at 3,600 RPM 5.1 (3.8 kW) at 3,600 RPM 5.1 (3.8 kW) at 3,600 RPM 4.3 (3.2 kW) at 3,600 RPM 8.9 (6.6 kW) at 3,600 RPM
Net Torque (lbs./ft.) 6.9 (9.4 Nm) at 2,500 RPM 8.3 (11.3 Nm) at 2,500 RPM 8.3 (11.3 Nm) at 2,500 RPM 7.1 (9.6 Nm) at 2,500 RPM 15.9 (21.6 Nm) at 2,500 RPM
Shaft Output
Vertical Vertical Vertical Vertical Vertical
Crankshaft N1 type N1 type S3 type - -
Shaft Diameter (in.) 7/8 7/8 1 7/8 1
Shaft Length (in.) 3 5/32 3 5/32 3 5/32 3 3/16 3.11
Shaft Keyway (in.)
3/16 3/16 3/16 - 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 3/8–24 3/8–24 3/8–24 3/8–24 7/16–20
Shaft Rotation (From PTO Shaft Side) Counterclockwise Counterclockwise Counterclockwise Counterclockwise Counterclockwise
Bearing Type - Ball Ball - -
Cylinders (qty.)
1 1 1 1 1
Cylinder Bore
Aluminum alloy Cast iron Cast iron Cast iron Cast iron
Bore x Stroke (in.)
2.5 x 2.0 2.7 x 2.0 2.7 x 2 2.7 x 1.8 3.2 x 2.5
Compression Ratio
8.5:1 8.5:1 8.5:1 8.0:1 7.7:1
Cooling System
Air cooled Air cooled Air cooled Air cooled Air cooled
Air Cleaner Type
Dry (paper) type Dual element Dual element Dual element Dual element
Fuel Tank Yes Yes Yes Yes Yes
Fuel Type Gasoline Gasoline Gasoline Gasoline Gasoline
Fuel Tank Capacity (qt.)
0.98 0.98 0.98 1.9 2.2
Fuel Pump - Yes Yes - -
Fuel Filter
- Yes Yes - Mesh fuel filter
Oil Capacity (qt.)
0.58 0.58 0.58 0.69 1.2
Lubrication System
Forced splash Forced splash Forced splash Forced splash Pressure/splash
Low Oil Alert
- - - - No
Ignition System
Electronic Electronic Electronic Electronic Electronic
Governor System
Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical
Carburetor
Float Horizontal butterfly valve Horizontal butterfly valve Float Float
Throttle Control
Remote (wire) Remote Remote Manual Remote (wire)
Choke Control
Remote (wire) Remote (wire) Remote (wire) Remote (wire) Remote (wire)
Max. RPM
3,600 3,600 3,600 3,600 3,600
Charging System Amps - - - - 3
Muffler Included
Yes Yes Yes Yes Yes
Flywheel Brake Yes Yes Yes Yes -
Auto Compression Release - Yes Yes Yes -
Bolt Circle (in.)
8 1/2 8 1/2 8 1/2 8 10
Dimensions L x W x H (in.)
14 3/8 x 13 x 13 13/16 14 3/5 x 13 1/2 x 13 4/5 14 3/5 x 13 1/2 x 13 4/5 16 5/16 x 14 1/8 x 13 7/8 17 x 15 x 15 7/8
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes Yes Yes