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Honda Vertical OHC Engine — 187cc, GCV Series, 25mm x 3 5/32in. Shaft, Model# GCV190LAS3L-BLK

Item# 51293
Honda Vertical OHC Engine — 187cc, GCV Series, 25mm x 3 5/32in. Shaft, Model# GCV190LAS3L-BLK

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Only $219.99
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  • Air-cooled, 4-stroke, single cylinder engine
  • Utilizes Honda's latest overhead cam technology
  • Internal timing belt for incredibly quiet operation
  • 8in. flange mount bolt circle
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Product Summary

This Honda Vertical OHC Engine is an ideal choice for home and light industrial use and powers lawn mowers and walk-behind trimmers. Does not fit Honda PE mowers with metric shaft. Incredibly quiet, utilizing an internal timing belt. 50-state compliant engine.

What's Included
  •  (1) Engine, Model# GCV190LAS3L-BLK

Features + Benefits

  • Air-cooled, 4-stroke, single cylinder engine
  • Utilizes Honda's latest overhead cam technology
  • Internal timing belt for incredibly quiet operation
  • 8in. flange mount bolt circle
Key Specs
Item# 51293
Brand Honda Engines
Manufacturer's Warranty 24 months consumer / 90 day commercial
Ship Weight 27.0 lbs
Engine Displacement (cc) 187
Start Type Recoil
Application Lawn mower, walk-behind string trimmer
Engine Type GCV series OHV consumer/commercial
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 N3 (S3) type vertical
Shaft Diameter (in.) 25mm
Shaft Length (in.) 3 5/32
Shaft Keyway (in.) 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 3/8-24
Shaft Rotation (From PTO Shaft Side) Counterclockwise
Bearing Type Oil seal
Cylinders (qty.) 1
Cylinder Bore Aluminum alloy
Bore x Stroke (in.) 2.7 x 2
Compression Ratio 8.5:1
Cooling System Air cooled
Air Cleaner Type Dry (paper)
Fuel Tank Yes
Fuel Type Gasoline
Fuel Tank Capacity (qt.) 0.98
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 Fixed
Choke Control Auto return
Max. RPM 3,600
Muffler Included Yes
Flywheel Brake Yes
Auto Compression Release Yes
Bolt Circle (in.) 8
Dimensions L x W x H (in.) 14 3/8 x 13 x 13 13/16
EPA/CARB Approval (California Air Resource Board) Yes

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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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Honda Vertical OHC Engine — 187cc, GCV Series, 25mm x 3 5/32in. Shaft, Model# GCV190LAS3L-BLK The price is $219.99.
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Hide Similarities
Engine Displacement (cc)
187 187 163 389 337
Start Type
Recoil Recoil Recoil Recoil Electric w/recoil backup
Application Lawn mower, walk-behind string trimmer Billy Goat lawn vac, commercial mower Walk-behind mower Commercial turf equipment, lawn tractor, riding mower Commerical turf equipment, lawn tractor, riding mower
Engine Type GCV series OHV consumer/commercial GSV series OHC GXV series OHV commercial-duty GXV series OHV commercial-duty GXV series OHV commercial-duty
Net Power Output (HP) 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 10.2 (7.6 kW) at 3,600 RPM 8.9 (6.6 kW) at 3,600 RPM
Net Torque (lbs./ft.) 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 17.8 (24.2 Nm) at 2,500 RPM 15.9 (21.6 Nm) at 2,500 RPM
Shaft Output
Vertical Vertical Vertical Vertical Vertical
Crankshaft N3 (S3) type vertical N1 type - D type vertical -
Shaft Diameter (in.) 25mm 7/8 7/8 1 1
Shaft Length (in.) 3 5/32 3 5/32 3 3/16 3.11 3.11
Shaft Keyway (in.)
1/4 3/16 - 1/4 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 3/8-24 3/8–24 3/8–24 7/16–20, UNF2B TAP 7/16–20
Shaft Rotation (From PTO Shaft Side) Counterclockwise Counterclockwise Counterclockwise Counterclockwise Counterclockwise
Bearing Type Oil seal Ball - Ball bearing -
Cylinders (qty.)
1 1 1 1 1
Cylinder Bore
Aluminum alloy Cast iron Cast iron Cast iron Cast iron
Bore x Stroke (in.)
2.7 x 2 2.7 x 2.0 2.7 x 1.8 3 29/64 x 2 1/2 3.2 x 2.5
Compression Ratio
8.5:1 8.5:1 8.0:1 7.7:1 7.7:1
Cooling System
Air cooled Air cooled Air cooled Air cooled Air cooled
Air Cleaner Type
Dry (paper) Dual element Dual element Dual element Dual element
Fuel Tank Yes Yes Yes Not included Yes
Fuel Type Gasoline Gasoline Gasoline Gasoline Gasoline
Fuel Tank Capacity (qt.)
0.98 0.98 1.9 - 2.2
Fuel Pump - Yes - - -
Fuel Filter
Yes Yes - Yes Mesh fuel filter
Oil Capacity (qt.)
0.58 0.58 0.69 1.2 1.2
Lubrication System
Forced splash Forced splash Forced splash Pressure/splash Pressure/splash
Low Oil Alert
- - - Oil level switch No
Low Oil Shutdown - - - Oil level switch -
Ignition System
Electronic Electronic Electronic Transistorized magneto Electronic
Governor System
Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical
Carburetor
Horizontal butterfly valve Horizontal butterfly valve Float Float Float
Throttle Control
Fixed Remote Manual Remote (rod) Remote (wire)
Choke Control
Auto return Remote (wire) Remote (wire) Remote (rod) 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 - -
Auto Compression Release Yes Yes Yes Yes -
Bolt Circle (in.)
8 8 1/2 8 10 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 16 5/16 x 14 1/8 x 13 7/8 17 x 15 x 15 7/8 17 x 15 x 15 7/8
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes Yes Yes