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Kohler Command Pro OHV Horizontal Grasshopper Replacement Engine with Electric Start — 674cc, 1 1/8in. x 3 11/32in. Shaft, Model# PA-CH640-3149

Item# 44598
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Kohler Command Pro OHV Horizontal Grasshopper Replacement Engine with Electric Start — 674cc, 1 1/8in. x 3 11/32in. Shaft, Model# PA-CH640-3149

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Only $1749.99
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  • User-friendly maintenance, thanks to extended maintenance intervals, yellow fill cap and dipstick handle, dual oil drains and an easy-access oil fill/dipstick
  • High-power performance, with high-power spark plugs, 15 Amp charging, a large line-line fuel filter and overhead valve 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, quiet operation with an engineered material blower housing and a mechanical fuel pump
  • Dependable starts, thanks to the Smart Choke™ carburetor, electronic ignition system and solenoid shift starter
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Factory Shipped —
Estimated Delivery: 5 - 7 Business Days
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Not Available in Stores
 

Product Summary

This Kohler 674cc Command Pro® OHV Horizontal Engine is the ideal replacement for Grasshopper zero-turn radius mowers and is designed to deliver relentless power and legendary performance. U.S.A.

What's Included
  •  (1) Engine

Features + Benefits

  • User-friendly maintenance, thanks to extended maintenance intervals, yellow fill cap and dipstick handle, dual oil drains and an easy-access oil fill/dipstick
  • High-power performance, with high-power spark plugs, 15 Amp charging, a large line-line fuel filter and overhead valve 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, quiet operation with an engineered material blower housing and a mechanical fuel pump
  • Dependable starts, thanks to the Smart Choke™ carburetor, electronic ignition system and solenoid shift starter
  • CARB and EPA approved
Key Specs
Item# 44598
Brand Kohler Engines
Manufacturer's Warranty 3 Yr Consumer Limited
Ship Weight 106.0 lbs
Engine Displacement (cc) 674
Start Type Electric
Application Grasshopper zero-turn mower
Engine Type Command Pro OHV
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.) 3 11/32
Shaft Keyway (in.) 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 17/16-20 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 In line
Oil Capacity (qt.) 2
Lubrication System Full pressure
Low Oil Alert Yes
Low Oil Shutdown Yes
Ignition System Electronic
Governor System Mechanical
Carburetor Smart choke
Throttle Control Remote
Choke Control Remote
Max. RPM 3,600
Charging System Amps 15
Muffler Included Yes
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 17 7/10 x 19
EPA/CARB Approval (California Air Resource Board) Yes

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Accessories Frequently Purchased with this Item
Safety
Mechanix Men's Wear Utility 1.5 Gloves - Black, Large, Model# H15-05-010
Mechanix Men's Wear Utility 1.5 Gloves - Black, Large, Model# H15-05-010
Item# 507582
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Only $14.99
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Replacement Parts
Call To Order: 1-800-657-0516

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Sat 7:00 AM - 3:00 PM (Central)

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Kohler Command Pro OHV Horizontal Grasshopper Replacement Engine with Electric Start — 674cc, 1 1/8in. x 3 11/32in. Shaft, Model# PA-CH640-3149 The price is $1,749.99.
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Hide Similarities
Engine Displacement (cc)
725 674 674 747 725
Start Type
Electric Electric Electric Electric Electric
Application Toro Exmark ZTR Simplicity garden tractor Grasshopper zero-turn mower Garden tractors, construction equipment, etc. Exmark ZTR mowers
Engine Type Air cooled Gasoline Command Pro OHV Air Horizontal
Torque (ft./lbs.)
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 41.2 (55.9 Nm) at 3,600 RPM 38.4 (52.1 Nm) at 3,600 RPM
Displacement (cu. in.)
725 41 41 45 1/2 44
Shaft Output
CCW Horizontal Horizontal CCW CCW
Crankshaft Hardened Hardened Hardened Hardened Hardened
Shaft Diameter (in.) 1 1/8 1 1/8 1 1/8 1 7/16 1 1/8
Shaft Length (in.) 2 3/4 2.79 3 11/32 4 29/64 2 3/4
Shaft Keyway (in.)
0.25 1/4 1/4 3/8 0.250
Shaft End Tapped (Diameter (in.)/Threads per inch) 7/16–20 UNF 1 1/2 deep x 7/16-20 UNF 17/16-20 UNF 5/8–18 UNF 7/16-20 unf
Shaft Rotation (From PTO Shaft Side) CCW Counterclockwise Counterclockwise CCW CCW
PTO Height (in.)
6.125 6 1/8 6 1/8 6 1/8 6 1/8
Bearing Type - Parent material Parent material PTO sleeve bearing -
Cylinders (qty.)
2 2 2 2 2
Cylinder Bore
Cast iron liner Cast iron sleeve Cast iron sleeve Cast iron Cast iron
Bore x Stroke (in.) 3.3 x 2.6 3 x 2.6 3 x 2.6 3.3 x 2.7 -
Compression Ratio
9:1 8.5:1 8.5:1 9.4 : 1 9:1
Cooling System
Air Air cooled Air cooled Air Air
Air Cleaner Type
Canister Dual element Dual element Dual element Heavy-duty canister
Fuel Type Gasoline Gasoline Gasoline Gas Gas
Fuel Pump
Mechanical Mechanical Mechanical Mechanical Mechanical
Fuel Filter
Yes Spin-on In line Yes 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
Yes Oil Sentry, shipped disconnected Yes Yes Yes
Ignition System
Electronic Electronic Electronic Electronic Electronic
Governor System
Mechanical Variable speed Mechanical Mechanical Mechanical
Carburetor
Smart choke Smart Choke Smart choke Smart choke Smart choke
Throttle Control
Remote Remote Remote Remote Remote
Choke Control
Remote Remote Remote Remote Remote
Max. RPM
3,600 3,600 3,600 3,600 3,600
Charging System Amps 20A regulated 15 15 25 20
Muffler Included
No No Yes - Yes
Auto Compression Release - No No - -
Bolt Circle (in.)
5.625 and 7.75, 7 in. pilot 5 5/8, 7 3/4; 7 pilot 5 5/8, 7 3/4, 7 pilot 5 5/8 and 7 3/4, 7 in. pilot 5 5/8 and 7 3/4, 7 in. pilot
Mounting Base L x W (in.)
7.250 x 3.504 7 1/4 x 3 1/2 7 1/4 x 3 1/2 7 1/4 x 3.504 7 1/4 x 3 1/2
Mounting Bolt Pattern L x W (in.) - 7 1/4 x 3 1/2 7 1/4 x 3 1/2 - 7 1/4 x 3 1/2
Dimensions L x W x H (in.)
14 x 17 x 26 1/2 14 x 18 x 19 14 x 17 7/10 x 19 14 x 17.7 x 22.4 14 x 17 3/4 x 26 1/2
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes Yes Yes