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Kohler Command Pro OHV Horizontal Grasshopper Replacement Engine with Electric Start — 624cc, 1 1/8in. x 3 11/32in. Shaft, Model# PA-CH640-3075
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Kohler Command Pro OHV Horizontal Grasshopper Replacement Engine with Electric Start — 624cc, 1 1/8in. x 3 11/32in. Shaft, Model# PA-CH640-3075

Item# 24831

Only $2049.99
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Factory Shipped —
Estimated Delivery: 7 - 12 Business Days
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Ships Truck 106.0 lbs
Unloading Requirements
Not Available in Stores

Manufacturer's Warranty: 3 Yr Consumer Limited

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Product Summary

This Kohler 624cc 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
  • (1) Owner's manual

Features + Benefits

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  • 7in. dia. pilot
  • 7 1/4in. x 3 1/2in. mounting base
  • Full-pressure lube with spin on oil filter
  • Electric start with 15 Amp regulated alternator
  • Remote controls
  • Dual-element air cleaner
  • Front drive adapter
  • Cast iron cylinder liners
  • Hydraulic valve lifters
  • Oil Sentry®, shipped wired
  • Exhaust system shipped uninstalled
  • 50-state compliant engine

Key Specs

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Item#24831
Ship Weight106.0 lbs
Engine Displacement (cc)624
Start TypeElectric
ApplicationGrasshopper zero-turn mowers
Engine TypeAir cooled
Torque (ft./lbs.)32.7 at 2,400 rpm
Displacement (cu. in.)624
Shaft OutputCCW
CrankshaftHardened
Shaft Diameter (in.)1 1/8
Shaft Length (in.)3.34375
Shaft Keyway (in.)0.25
Shaft End Tapped (Diameter (in.)/Threads per inch)7/16–20 UNF
Shaft Rotation (From PTO Shaft Side)CCW
PTO Height (in.)6.125
Cylinders (qty.)2
Cylinder BoreCast iron sleeve
Bore x Stroke (in.)3 x 2.6
Compression Ratio8.5:1
Cooling SystemAir
Air Cleaner TypeDual element
Fuel TypeGasoline
Fuel PumpMechanical
Fuel FilterYes
Oil Capacity (qt.)2
Lubrication SystemFull pressure
Low Oil AlertYes
Low Oil ShutdownYes
Ignition SystemElectronic
Governor SystemMechanical
CarburetorSmart choke
Throttle ControlRemote
Choke ControlRemote
Max. RPM3,600
Charging System Amps15
Muffler IncludedYes
Bolt Circle (in.)5.625 and 7.75, 7 in. pilot
Mounting Base L x W (in.)7.250 x 3.504
Mounting Bolt Pattern L x W (in.)7.250 x 3.504
Dimensions L x W x H (in.)14 x 17 3/4 x 19
EPA/CARB Approval (California Air Resource Board)Yes

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Extended Warranty

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Service Protection Plus

Manufacturer Warranty:
3 Yr Consumer Limited

Protect your purchase beyond the manufacturer's warranty
with Service Protection Plus!

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Extended Warranty Repair Plan
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Kohler Command Pro OHV Horizontal Grasshopper Replacement Engine with Electric Start — 624cc, 1 1/8in. x 3 11/32in. Shaft, Model# PA-CH640-3075 The price is $2,049.99.
Kohler Command Pro OHV Horizontal Grasshopper Replacement Engine with Electric Start — 624cc, 1 1/8in. x 3 11/32in. Shaft, Model# PA-CH640-3075
(Not Yet Rated - New)
Item# 24831
Factory Shipped —
Estimated Delivery: 7 - 12 Business Days
Only $2049.99
Hide Similarities
Engine Displacement (cc)
624 624 624 725 624
Start Type
Electric Electric Electric Electric Electric
Application Grain augers, boring equipment, post hole augers and more Contstruction, farm Sand trap rake, garden tractor, lawn tractor, pump, utility vehicle Toro Exmark ZTR Grasshopper zero-turn mowers
Engine Type Air cooled OHV Horizontal Air cooled Air cooled Air cooled
Torque (ft./lbs.)
32.2 @ 2,200 RPM 32.7 at 2,400 rpm 32.7 at 2,400 42.3 at 2,400 32.7 at 2,400 rpm
Displacement (cu. in.)
39.1 624 - 725 624
Shaft Output
CCW CCW CCW CCW CCW
Crankshaft Hardened - Hardened Hardened Hardened
Shaft Diameter (in.) 1 1/8 1.437 1.125 1 1/8 1 1/8
Shaft Length (in.) 4 4.453 4 2 3/4 3.34375
Shaft Keyway (in.)
3/8 0.375 0.250 0.25 0.25
Shaft End Tapped (Diameter (in.)/Threads per inch) 7/16 - 20 1 1/2 x 5/8-18 1.5 deep 5/8-18 UNF 7/16–20 UNF 7/16–20 UNF
Shaft Rotation (From PTO Shaft Side) CCW CCW CCW CCW CCW
Gear Reduction - - No - -
PTO Height (in.)
6 1/8 - 6.125 6.125 6.125
Cylinders (qty.)
2 2 2 2 2
Cylinder Bore
Cast iron Cast iron liner Cast iron Cast iron liner Cast iron sleeve
Bore x Stroke (in.)
3 x 2.6 3 x 2.77 3 x 2.6 3.3 x 2.6 3 x 2.6
Compression Ratio
8.5 : 1 8.5:1 8.5:1 9:1 8.5:1
Cooling System
Air Air Air Air Air
Air Cleaner Type
Dual element Dual element Large capacity dual element Canister Dual element
Fuel Type Gasoline Gasoline Gasoline Gasoline Gasoline
Fuel Pump
Mechanical Mechanical Mechanical Mechanical Mechanical
Fuel Filter
Large capacity Large capacity in-line Large capacity 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 Oil Sentry Yes Yes
Low Oil Shutdown
Yes, wired not connected Yes Oil Sentry Yes Yes
Ignition System
Electronic Electronic Electronic Electronic Electronic
Governor System
Manual Variable speed Variable speed Mechanical Mechanical
Carburetor
Smart choke Smart choke Smart Choke Smart choke Smart choke
Throttle Control
Engine mounted Remote control Engine-mounted Remote Remote
Choke Control
Engine mounted Smart choke carburetor Smart Choke Remote Remote
Max. RPM
3,600 3,600 3,600 3,600 3,600
Charging System Amps 15 15 20 20 A regulated 15
Muffler Included
Yes Yes, w/guard No No Yes
Flywheel Brake - No - - -
Bolt Circle (in.)
5 5/8 x 7 3/4 7 7 5.625 and 7.75, 7 in. pilot 5.625 and 7.75, 7 in. pilot
Mounting Base L x W (in.)
7 1/4 x 3 1/2 7.250 x 3.504 7 1/4 x 3 1/2 7.250 x 3.504 7.250 x 3.504
Mounting Bolt Pattern L x W (in.) 7 1/4 x 3 1/2 - 7 1/4 x 3 1/2 - 7.250 x 3.504
Dimensions L x W x H (in.)
14 x 17.7 x 19 14 x 17 3/4 x 19 14 x 17.7 x 19 14 x 17 x 26 1/2 14 x 17 3/4 x 19
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes Yes Yes