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Kohler Command OHV Horizontal Toro/Exmark Zero-Turn Mower Replacement Engine — 725cc, 1 1/8in. x 2 3/4in. Shaft, Model# PA-CH740-3175
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Kohler Command OHV Horizontal Toro/Exmark Zero-Turn Mower Replacement Engine — 725cc, 1 1/8in. x 2 3/4in. Shaft, Model# PA-CH740-3175

Item# 24793

Only $1999.99
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Factory Shipped —
Estimated Delivery: 7 - 12 Business Days
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Ships Truck 108.0 lbs
Unloading Requirements
Not Available in Stores

Manufacturer's Warranty: 3 Yr Consumer Limited

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Product Summary

The Kohler 725cc Command OHV Horizontal Engine is a replacement engine for the Toro/Exmark Zero-Turn Mower. The perfect choice when you're looking for fast starts, increased power and unequaled performance.

What's Included

  • (1) Engine
  • (1) Owner's manual

Features + Benefits

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  • 5 5/8in. and 7 3/4in. bolt circles, 7in. dia. pilot
  • 7 1/4in. x 3 1/2in. mounting base
  • Electric start
  • Full-pressure lube with spin-on oil filter
  • Heavy-duty canister air cleaner system
  • 1in. x 2.53in. front PTO shaft
  • Cast iron cylinder liners
  • Mechanical fuel pump
  • Remote controls
  • Hydraulic valve lifters
  • Oil Sentry®, shipped wired
  • 50-state compliant engine
  • Air cleaner ships separately
  • Muffler not included

Key Specs

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Item#24793
Ship Weight108.0 lbs
Engine Displacement (cc)725
Start TypeElectric
ApplicationToro Exmark ZTR
Engine TypeAir cooled
Torque (ft./lbs.)42.3 at 2,400
Displacement (cu. in.)725
Shaft OutputCCW
CrankshaftHardened
Shaft Diameter (in.)1 1/8
Shaft Length (in.)2 3/4
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 liner
Bore x Stroke (in.)3.3 x 2.6
Compression Ratio9:1
Cooling SystemAir
Air Cleaner TypeCanister
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 Amps20 A regulated
Muffler IncludedNo
Bolt Circle (in.)5.625 and 7.75, 7 in. pilot
Mounting Base L x W (in.)7.250 x 3.504
Dimensions L x W x H (in.)14 x 17 x 26 1/2
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!

DESCRIPTION (Click More Info for details) 1 Year Extension 2 Year Extension
Extended Warranty Repair Plan
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Extended Warranty + Accidental Damage Repair Plan
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Kohler Command OHV Horizontal Toro/Exmark Zero-Turn Mower Replacement Engine — 725cc, 1 1/8in. x 2 3/4in. Shaft, Model# PA-CH740-3175 The price is $1,999.99.
Kohler Command OHV Horizontal Toro/Exmark Zero-Turn Mower Replacement Engine — 725cc, 1 1/8in. x 2 3/4in. Shaft, Model# PA-CH740-3175
(Not Yet Rated - New)
Item# 24793
Factory Shipped —
Estimated Delivery: 7 - 12 Business Days
Only $1999.99
Hide Similarities
Engine Displacement (cc)
624 674 674 624 725
Start Type
Electric Electric Electric Electric Electric
Application Zero-turn mower, skid steer loader Zero-turn mower, skid steer loader, bale chopper, grain auger, utility vehicle Utility vehicle, sand trap rake, grain auger, boring equipment Sand trap rake, garden tractor, lawn tractor, pump, utility vehicle Toro Exmark ZTR
Engine Type Horizontal Command V-Twin OHV Gasoline Air cooled Air cooled
Torque (ft./lbs.)
32.2 at 2200rpm 32.2 @ 2,200 RPM 32.2 @ 2,200 RPM 32.7 at 2,400 42.3 at 2,400
Displacement (cu. in.)
624 41 - - 725
Shaft Output
CCW Horizontal Counterclockwise CCW CCW
Crankshaft Yes Hardened Hardened Hardened Hardened
Shaft Diameter (in.) 1.125 1 1/8 1 1/8 1.125 1 1/8
Shaft Length (in.) 4.0 4 4 4 2 3/4
Shaft Keyway (in.)
0.25 1/4 1/4 0.250 0.25
Shaft End Tapped (Diameter (in.)/Threads per inch) 1 1/2in deep x 7/16-20 UNF 1.5-in. deep 7/16-20 UNF 7/16–20 UNF 1.5 deep 5/8-18 UNF 7/16–20 UNF
Shaft Rotation (From PTO Shaft Side) CCW Counterclockwise Counterclockwise CCW CCW
Gear Reduction No - - No -
PTO Height (in.)
- 6 1/8 6 1/8 6.125 6.125
Bearing Type - Parent material - - -
Cylinders (qty.)
2 2 2 2 2
Cylinder Bore
Cast iron Cast iron Cast iron sleeve Cast iron Cast iron liner
Bore x Stroke (in.)
3 x 2.6 3.1 x 2.6 3 x 2.6 3 x 2.6 3.3 x 2.6
Compression Ratio
8.5:1 8.5:1 8.5:1 8.5:1 9:1
Cooling System
Air Air cooled Air cooled Air Air
Air Cleaner Type
Dual element Dual element Dual element Dual element Canister
Fuel Type Gasoline Gasoline Gasoline Gasoline Gasoline
Fuel Pump
Mechanical Mechanical Mechanical Mechanical Mechanical
Fuel Filter
Large capacity in-line Large capacity in-line Large capacity Large capacity in-line 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 Oil Sentry Yes
Low Oil Shutdown
Yes Oil Sentry, shipped disconnected Oil Sentry, shipped disconnected Oil Sentry Yes
Ignition System
Electronic Electronic Electronic Electronic Electronic
Governor System
Variable speed Variable speed Variable speed Variable speed Mechanical
Carburetor
Smart choke Smart Choke Smart Choke Smart Choke Smart choke
Throttle Control
Remote Remote Engine mounted Engine-mounted Remote
Choke Control
Smart choke carburetor Remote Smart Choke Smart Choke Remote
Max. RPM
3750 3,600 3,600 3,600 3,600
Charging System Amps 20 15 15 20 20 A regulated
Muffler Included
No No Yes No No
Auto Compression Release - No No - -
Bolt Circle (in.)
7 5 5/8, 7 3/4, 7 pilot 5 5/8, 7 3/4, 7 pilot 7 5.625 and 7.75, 7 in. pilot
Mounting Base L x W (in.)
5.625 x 7.75 7 1/4 x 3 1/2 7 1/4 x 3 1/2 7 1/4 x 3 1/2 7.250 x 3.504
Mounting Bolt Pattern L x W (in.) 7 in. dia. plot 7 1/4 x 3 1/2 5 5/8, 7 3/4; 7 pilot 7 1/4 x 3 1/2 -
Dimensions L x W x H (in.)
14 x 17.7 x 19 14 x 17 7/10 x 19 14 x 17 7/10 x 19 14 x 17.7 x 19 14 x 17 x 26 1/2
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes Yes Yes