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Kohler Command Pro Horizontal Simplicity Replacement Engine with Electric Start — 674cc, 1.125in. x 2.79in. Shaft, Model# PA-CH640-3126

Item# 44601
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Kohler Command Pro Horizontal Simplicity Replacement Engine with Electric Start — 674cc, 1.125in. x 2.79in. Shaft, Model# PA-CH640-3126

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Only $1699.99
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  • Excellent performance with high-performance spark plugs, 20 amp charging system, a large spin-on fuel filter and OHV design
  • Reliable, long-life design with hardened crankshaft journals; a high-efficiency fan and screen; large dual-element air filter with foam pre-cleaner; cast iron cylinder liners; hydraulic valve lifters; full-pressure lubrication and a spin-on, full-flow oil filter
  • Smooth operation thanks to an engineered material blower housing and a mechanical fuel pump
  • Easy, dependable starts thanks to the Smart Choke™ carburetor, the electronic ignition system and a solenoid shift starter
  • User-friendly maintenance with extended maintenance intervals, a yellow oil fill cap and dipstick handle, dual oil drains, an easy access oil-fill and dipstick
Factory Shipped —
Estimated Delivery: 5 - 7 Business Days
Ship it | See Shipping Options
Not Available in Stores
 

Product Summary

Get relentless power and legendary performance from this Kohler Command Pro Horizontal Simplicity Replacement Engine with Electric Start. This engine has an overhead valve design for greater efficiency, improved power and reduced oil consumption. A variable-speed mechanical governor promises smooth performance. Its durable long life design incorporates oil-pressurized hydraulic valve lifters for a virtually maintenance-free valve train and full-pressure lubrication that continuously coats critical components, even at a 25° angle of operation. The large capacity spin-on fuel filter provides extra protection against dirt particles.

What's Included
  •  (1) Engine, Model# PA-CH640-3126

Features + Benefits

  • Excellent performance with high-performance spark plugs, 20 amp charging system, a large spin-on fuel filter and OHV design
  • Reliable, long-life design with hardened crankshaft journals; a high-efficiency fan and screen; large dual-element air filter with foam pre-cleaner; cast iron cylinder liners; hydraulic valve lifters; full-pressure lubrication and a spin-on, full-flow oil filter
  • Smooth operation thanks to an engineered material blower housing and a mechanical fuel pump
  • Easy, dependable starts thanks to the Smart Choke™ carburetor, the electronic ignition system and a solenoid shift starter
  • User-friendly maintenance with extended maintenance intervals, a yellow oil fill cap and dipstick handle, dual oil drains, an easy access oil-fill and dipstick
Key Specs
Item# 44601
Brand Kohler Engines
Manufacturer's Warranty 3 Yr Consumer Limited
Ship Weight 106.0 lbs
Engine Displacement (cc) 674
Start Type Electric
Application Simplicity garden tractor
Engine Type Gasoline
Torque (ft./lbs.) 35.7 (48.4 Nm) at 3,600 RPM
Displacement (cu. in.) 41
Shaft Output Horizontal
Crankshaft Hardened
Shaft Diameter (in.) 1 1/8
Shaft Length (in.) 2.79
Shaft Keyway (in.) 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 1 1/2 deep x 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 Spin-on
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 Remote
Choke Control Remote
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.) 7 1/4 x 3 1/2
Dimensions L x W x H (in.) 14 x 18 x 19
EPA/CARB Approval (California Air Resource Board) Yes

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

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Kohler Command Pro Horizontal Simplicity Replacement Engine with Electric Start — 674cc, 1.125in. x 2.79in. Shaft, Model# PA-CH640-3126 The price is $1,699.99.
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Estimated Delivery: 5 - 7 Business Days
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Hide Similarities
Engine Displacement (cc)
674 674 725 674 747
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 Utility, construction, grain augers and pressure washers Stump grinders, construction equipment, grain augers Simplicity garden tractor Garden tractors, construction equipment, etc.
Engine Type Gasoline Gasoline Gasoline Gasoline Air
Torque (ft./lbs.)
35 (47.5 Nm) at 3,600 RPM 35.7 (48.4 Nm) at 3,600 RPM 38.4 (52.1 Nm) at 3,600 RPM 35.7 (48.4 Nm) at 3,600 RPM 41.2 (55.9 Nm) at 3,600 RPM
Displacement (cu. in.)
- 41.1 725 41 45 1/2
Shaft Output
Counterclockwise Horizontal CCW Horizontal CCW
Crankshaft Hardened Hardened Hardened Hardened Hardened
Shaft Diameter (in.) 1 1/8 1 7/16 1.437 1 1/8 1 7/16
Shaft Length (in.) 4 4 1/2 4.453 2.79 4 29/64
Shaft Keyway (in.)
1/4 0.0375 0.375 1/4 3/8
Shaft End Tapped (Diameter (in.)/Threads per inch) 7/16–20 UNF 1.5 x 5/8-18 UNF 5/8–18 UNF 1 1/2 deep x 7/16-20 UNF 5/8–18 UNF
Shaft Rotation (From PTO Shaft Side) Counterclockwise Counterclockwise CCW Counterclockwise CCW
PTO Height (in.)
6 1/8 6 1/8 6.125 6 1/8 6 1/8
Bearing Type
Parent material Parent material Sleeve Parent material PTO sleeve bearing
Cylinders (qty.)
2 2 2 2 2
Cylinder Bore
Cast iron sleeve Cast iron sleeve Cast iron liner Cast iron sleeve Cast iron
Bore x Stroke (in.)
3 x 2.6 3 x 2.77 3.3 x 2.6 3 x 2.6 3.3 x 2.7
Compression Ratio
8.5:1 8.5:1 9:1 8.5:1 9.4 : 1
Cooling System
Air cooled Air Air Air cooled Air
Air Cleaner Type
Dual element Dual element Dual element Dual element Dual element
Fuel Type Gasoline Gasoline Gasoline Gasoline Gas
Fuel Pump
Mechanical Mechanical Mechanical Mechanical Mechanical
Fuel Filter
Large capacity In line Yes Spin-on Yes
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 Oil Sentry, shipped disconnected Yes Oil Sentry, shipped disconnected Yes
Ignition System
Electronic Electronic Electronic Electronic Electronic
Governor System
Variable speed Variable speed Mechanical Variable speed Mechanical
Carburetor
Smart Choke Smart Choke Smart choke Smart Choke Smart choke
Throttle Control
Engine mounted Engine control - key switch, throttle, choke control Engine mounted w/keyswitch Remote Remote
Choke Control
Smart Choke Smart Choke Engine mounted w/keyswitch Remote Remote
Max. RPM
3,600 3,600 3,600 3,600 3,600
Charging System Amps 15 15 20A regulated 15 25
Muffler Included No Yes No No -
Auto Compression Release No No - No -
Bolt Circle (in.)
5 5/8, 7 3/4, 7 pilot 5 5/8, 7 3/4; 7 pilot 5.625 and 7.75, 7 in. pilot 5 5/8, 7 3/4; 7 pilot 5 5/8 and 7 3/4, 7 in. pilot
Mounting Base L x W (in.)
7 1/4 x 3 1/2 7 1/4 x 3 1/2 7.250 x 3.504 7 1/4 x 3 1/2 7 1/4 x 3.504
Mounting Bolt Pattern L x W (in.) 5 5/8, 7 3/4; 7 pilot 7 1/4 x 3 1/2 7.250 x 3.504 7 1/4 x 3 1/2 -
Dimensions L x W x H (in.)
14 x 17 7/10 x 19 17 4/5 x 17 7/10 x 14 1/10 14 x 17 3/4 x 19 14 x 18 x 19 14 x 17.7 x 22.4
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes Yes Yes