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Honda V-Twin Vertical OHV Engine with Electric Start —688cc, GXV Series, 1 1/8in. x 3.51/64in. Shaft, Model# GXV690RTAF2

Item# 44369
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Honda V-Twin Vertical OHV Engine with Electric Start —688cc, GXV Series, 1 1/8in. x 3.51/64in. Shaft, Model# GXV690RTAF2

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Only $1699.99
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  •  Configuration reduces vibration and allows a compact footprint
  • Superior construction, with forged steel crankshaft and integrated cylinder head
  • Fewer parts for durability
  • Digital CDI ignition coil to ensure improved fuel economy and lowered emissions
  • Improved air cleaning for fewer filter changes
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Product Summary

With experience born on the raceways and roadways and a dedication to innovation, there's plenty of reasons to insist on the new Honda GX690 V-Twin engine. There's superior engine design, with a configuration that reduces vibration and allows a compact footprint. There's superior construction, with a forged steel crankshaft and an integrated cylinder head. Fewer parts means better durability. There's a digital CDI ignition coil that ensures improved fuel economy and lowered emissions. Improved air cleaning means that you can wait longer between filter changes.

What's Included
  •  (1) Engine

Features + Benefits

  •  Configuration reduces vibration and allows a compact footprint
  • Superior construction, with forged steel crankshaft and integrated cylinder head
  • Fewer parts for durability
  • Digital CDI ignition coil to ensure improved fuel economy and lowered emissions
  • Improved air cleaning for fewer filter changes
Key Specs
Item# 44369
Brand Honda Engines
Manufacturer's Warranty 3 year limited warranty
Ship Weight 110.0 lbs
Engine Displacement (cc) 688
Start Type Electric
Application Commercial power equipment, riding lawn mower
Engine Type GXV series OHV V-Twin commercial-duty
Net Power Output (HP) 22.1 (16.5 kW) at 3,600 RPM
Net Torque (lbs./ft.) 35.6 (48.3 Nm) at 2,500 RPM
Shaft Output Vertical
Crankshaft T type
Shaft Diameter (in.) 1 1/8
Shaft Length (in.) 3 51/64
Shaft Keyway (in.) 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 7/16–20, UNF2B TAP
Shaft Rotation (From PTO Shaft Side) Counterclockwise
Bearing Type Ball bearing
Cylinders (qty.) 2
Cylinder Bore Cast iron
Bore x Stroke (in.) 3 1/16 x 2 27/32
Compression Ratio 9.3:1
Cooling System Air cooled
Air Cleaner Type Requires DNLS5 air cleaner (not included)
Fuel Tank Not included
Fuel Type Gasoline
Fuel Pump Boost type
Fuel Filter Yes
Oil Capacity (qt.) 2.3
Lubrication System Forced lubrication
Low Oil Alert Oil level switch
Low Oil Shutdown Oil pressure switch
Ignition System Digital CDI
Governor System Mechanical
Carburetor Horizontal, two-barrel butterfly valve, internal vent
Throttle Control Remote (rod)
Choke Control Remote (rod)
Max. RPM 3,600
Charging System Amps 17
Muffler Included Not included
Auto Compression Release Yes
Bolt Circle (in.) 7 3/4
Dimensions L x W x H (in.) 17 2/5 x 16 3/5 x 17 3/5
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 V-Twin Vertical OHV Engine with Electric Start —688cc, GXV Series, 1 1/8in. x 3.51/64in. Shaft, Model# GXV690RTAF2 The price is $1,699.99.
Honda V-Twin Vertical OHV Engine with Electric Start —688cc, GXV Series, 1 1/8in. x 3.51/64in. Shaft, Model# GXV690RTAF2
(Not Yet Rated - New)
Item# 44369
In Stock Online
Only $1699.99
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Engine Displacement (cc)
187 163 389 337 688
Start Type
Recoil Recoil Recoil Electric w/recoil backup Electric
Application Billy Goat lawn vac, commercial mower Walk-behind mower Commercial turf equipment, lawn tractor, riding mower Commerical turf equipment, lawn tractor, riding mower Commercial power equipment, riding lawn mower
Engine Type GSV series OHC GXV series OHV commercial-duty GXV series OHV commercial-duty GXV series OHV commercial-duty GXV series OHV V-Twin commercial-duty
Net Power Output (HP) 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 22.1 (16.5 kW) at 3,600 RPM
Net Torque (lbs./ft.) 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 35.6 (48.3 Nm) at 2,500 RPM
Shaft Output
Vertical Vertical Vertical Vertical Vertical
Crankshaft N1 type - D type vertical - T type
Shaft Diameter (in.) 7/8 7/8 1 1 1 1/8
Shaft Length (in.) 3 5/32 3 3/16 3.11 3.11 3 51/64
Shaft Keyway (in.)
3/16 - 1/4 1/4 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 3/8–24 3/8–24 7/16–20, UNF2B TAP 7/16–20 7/16–20, UNF2B TAP
Shaft Rotation (From PTO Shaft Side) Counterclockwise Counterclockwise Counterclockwise Counterclockwise Counterclockwise
Bearing Type
Ball - Ball bearing - Ball bearing
Cylinders (qty.)
1 1 1 1 2
Cylinder Bore
Cast iron Cast iron Cast iron Cast iron Cast iron
Bore x Stroke (in.)
2.7 x 2.0 2.7 x 1.8 3 29/64 x 2 1/2 3.2 x 2.5 3 1/16 x 2 27/32
Compression Ratio
8.5:1 8.0:1 7.7:1 7.7:1 9.3:1
Cooling System
Air cooled Air cooled Air cooled Air cooled Air cooled
Air Cleaner Type
Dual element Dual element Dual element Dual element Requires DNLS5 air cleaner (not included)
Fuel Tank Yes Yes Not included Yes Not included
Fuel Type Gasoline Gasoline Gasoline Gasoline Gasoline
Fuel Tank Capacity (qt.) 0.98 1.9 - 2.2 -
Fuel Pump
Yes - - - Boost type
Fuel Filter
Yes - Yes Mesh fuel filter Yes
Oil Capacity (qt.)
0.58 0.69 1.2 1.2 2.3
Lubrication System
Forced splash Forced splash Pressure/splash Pressure/splash Forced lubrication
Low Oil Alert
- - Oil level switch No Oil level switch
Low Oil Shutdown
- - Oil level switch - Oil pressure switch
Ignition System
Electronic Electronic Transistorized magneto Electronic Digital CDI
Governor System
Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical Centrifugal mechanical Mechanical
Carburetor
Horizontal butterfly valve Float Float Float Horizontal, two-barrel butterfly valve, internal vent
Throttle Control
Remote Manual Remote (rod) Remote (wire) Remote (rod)
Choke Control
Remote (wire) Remote (wire) Remote (rod) Remote (wire) Remote (rod)
Max. RPM
3,600 3,600 3,600 3,600 3,600
Charging System Amps - - - 3 17
Muffler Included
Yes Yes Yes Yes Not included
Flywheel Brake Yes Yes - - -
Auto Compression Release
Yes Yes Yes - Yes
Bolt Circle (in.)
8 1/2 8 10 10 7 3/4
Dimensions L x W x H (in.)
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 17 2/5 x 16 3/5 x 17 3/5
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes Yes Yes