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Kohler Command V-Twin OHV Horizontal Engine with Electric Start — 674cc, 1 1/8in. x 4in. Shaft, Model# PA-CH620-3100

Item# 44153
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Kohler Command V-Twin OHV Horizontal Engine with Electric Start — 674cc, 1 1/8in. x 4in. Shaft, Model# PA-CH620-3100

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Only $1259.99
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  • Oil-pressurized hydraulic valve lifters keep the push rods in constant contact with rocker arms
  • Valve train never needs adjustment or maintenance
  • Full-pressure lubrication delivers constant lubrication to critical engine components, even at a 25% angle of operation
  • Overhead valve design for fuel economy, power, and reduced oil consumption
  • Variable-speed mechanical governor for smooth performance
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Factory Shipped —
Estimated Delivery: 5 - 7 Business Days
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Product Summary

This Kohler Command V-Twin OHV Horizontal Engine is designed for durability, with oil-pressurized hydraulic valve lifters and maintenance-free valve train.

What's Included
  •  (1) Engine

Features + Benefits

  • Oil-pressurized hydraulic valve lifters keep the push rods in constant contact with rocker arms
  • Valve train never needs adjustment or maintenance
  • Full-pressure lubrication delivers constant lubrication to critical engine components, even at a 25% angle of operation
  • Overhead valve design for fuel economy, power, and reduced oil consumption
  • Variable-speed mechanical governor for smooth performance
  • Electronic ignition system with high-performance spark plugs ensures reliable starts
  • User-friendly maintenance with dual oil drains and easy dipstick/oil fill access
  • Large in-line fuel filter
  • Large dual-element air filter with foam pre-cleaner
  • Cast iron cylinder liners
  • Spin-on, full-flow oil filter
  • Oil Sentry, shipped disconnected
  • 12V electric start with 15 Amp regulated alternator
  • Key switch, throttle and choke engine controls
  • Smart-Choke carburetor
  • Solenoid shift starter
  • CARB and EPA emission certified
Key Specs
Item# 44153
Brand Kohler Engines
Manufacturer's Warranty 3 year limited warranty
Ship Weight 125.0 lbs
Engine Displacement (cc) 674
Start Type Electric
Application Utility vehicle, sand trap rake, grain auger, boring equipment, carpet cleaning machines, pressure washers and furnace vacs
Engine Type Gasoline
Torque (ft./lbs.) 35 (47.5 Nm) at 3,600 RPM
Shaft Output Counterclockwise
Crankshaft Hardened
Shaft Diameter (in.) 1 1/8
Shaft Length (in.) 4
Shaft Keyway (in.) 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 7/16–20 UNF
Shaft Rotation (From PTO Shaft Side) Counterclockwise
PTO Height (in.) 6 1/8
Bearing Type Parent material
Cylinders (qty.) 2
Cylinder Bore Cast iron sleeve
Bore x Stroke (in.) 3 x 2.6
Compression Ratio 8.5:1
Cooling System Air cooled
Air Cleaner Type Dual element
Fuel Type Gasoline
Fuel Pump Mechanical
Fuel Filter Large capacity
Oil Capacity (qt.) 2
Lubrication System Full pressure
Low Oil Alert Yes
Low Oil Shutdown Oil Sentry, shipped disconnected
Ignition System Electronic
Governor System Variable speed
Carburetor Smart Choke
Throttle Control Engine mounted
Choke Control Smart Choke
Max. RPM 3,600
Charging System Amps 15
Muffler Included No
Auto Compression Release No
Bolt Circle (in.) 5 5/8, 7 3/4, 7 pilot
Mounting Base L x W (in.) 7 1/4 x 3 1/2
Mounting Bolt Pattern L x W (in.) 5 5/8, 7 3/4; 7 pilot
Dimensions L x W x H (in.) 14 x 17 7/10 x 19
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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Hide Similarities
Engine Displacement (cc)
674 725 725 674 674
Start Type
Electric Electric Electric Electric Electric
Application Utility vehicle, sand trap rake, grain auger, boring equipment, carpet cleaning machines, pressure washers and furnace vacs Stump grinders, construction equipment, grain augers Toro Exmark ZTR Simplicity garden tractor Grasshopper zero-turn mower
Engine Type Gasoline Gasoline Air cooled Gasoline Command Pro OHV
Torque (ft./lbs.)
35 (47.5 Nm) at 3,600 RPM 38.4 (52.1 Nm) at 3,600 RPM 39.2 (53.1 Nm) at 3,600 RPM 35.7 (48.4 Nm) at 3,600 RPM 35.7 (48.4 Nm) at 3,600 RPM
Displacement (cu. in.)
- 725 725 41 41
Shaft Output
Counterclockwise CCW CCW Horizontal Horizontal
Crankshaft Hardened Hardened Hardened Hardened Hardened
Shaft Diameter (in.) 1 1/8 1.437 1 1/8 1 1/8 1 1/8
Shaft Length (in.) 4 4.453 2 3/4 2.79 3 11/32
Shaft Keyway (in.)
1/4 0.375 0.25 1/4 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 7/16–20 UNF 5/8–18 UNF 7/16–20 UNF 1 1/2 deep x 7/16-20 UNF 17/16-20 UNF
Shaft Rotation (From PTO Shaft Side) Counterclockwise CCW CCW Counterclockwise Counterclockwise
PTO Height (in.)
6 1/8 6.125 6.125 6 1/8 6 1/8
Bearing Type
Parent material Sleeve - Parent material Parent material
Cylinders (qty.)
2 2 2 2 2
Cylinder Bore
Cast iron sleeve Cast iron liner Cast iron liner Cast iron sleeve Cast iron sleeve
Bore x Stroke (in.)
3 x 2.6 3.3 x 2.6 3.3 x 2.6 3 x 2.6 3 x 2.6
Compression Ratio
8.5:1 9:1 9:1 8.5:1 8.5:1
Cooling System
Air cooled Air Air Air cooled Air cooled
Air Cleaner Type
Dual element Dual element Canister Dual element Dual element
Fuel Type Gasoline Gasoline Gasoline Gasoline Gasoline
Fuel Pump
Mechanical Mechanical Mechanical Mechanical Mechanical
Fuel Filter
Large capacity Yes Yes Spin-on In line
Oil Capacity (qt.)
2 2 2 2 2
Lubrication System
Full pressure Full pressure Full pressure Full pressure Full pressure
Low Oil Alert
Yes Yes Yes Yes Yes
Low Oil Shutdown
Oil Sentry, shipped disconnected Yes Yes Oil Sentry, shipped disconnected Yes
Ignition System
Electronic Electronic Electronic Electronic Electronic
Governor System
Variable speed Mechanical Mechanical Variable speed Mechanical
Carburetor
Smart Choke Smart choke Smart choke Smart Choke Smart choke
Throttle Control
Engine mounted Engine mounted w/keyswitch Remote Remote Remote
Choke Control
Smart Choke Engine mounted w/keyswitch Remote Remote Remote
Max. RPM
3,600 3,600 3,600 3,600 3,600
Charging System Amps 15 20A regulated 20A regulated 15 15
Muffler Included
No No No No Yes
Auto Compression Release
No - - No No
Bolt Circle (in.)
5 5/8, 7 3/4, 7 pilot 5.625 and 7.75, 7 in. pilot 5.625 and 7.75, 7 in. pilot 5 5/8, 7 3/4; 7 pilot 5 5/8, 7 3/4, 7 pilot
Mounting Base L x W (in.)
7 1/4 x 3 1/2 7.250 x 3.504 7.250 x 3.504 7 1/4 x 3 1/2 7 1/4 x 3 1/2
Mounting Bolt Pattern L x W (in.) 5 5/8, 7 3/4; 7 pilot 7.250 x 3.504 - 7 1/4 x 3 1/2 7 1/4 x 3 1/2
Dimensions L x W x H (in.)
14 x 17 7/10 x 19 14 x 17 3/4 x 19 14 x 17 x 26 1/2 14 x 18 x 19 14 x 17 7/10 x 19
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes Yes Yes