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Kohler Courage XT-7 Engine — 173cc, 7/8in. Dia. x 3 5/32in.L Vertical Shaft, Model# XT173-0037
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Kohler Courage XT-7 Engine — 173cc, 7/8in. Dia. x 3 5/32in.L Vertical Shaft, Model# XT173-0037

Item# 740065

Only $219.99
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Manufacturer's Warranty: 2 years consumer use / 1 year commercial use

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Product Summary

The Courage XT is a tough, reliable and professional-grade engine designed for use in MTD walk-behind mowers. Features an overhead valve design for fuel efficiency and a cast iron bore for durability. The oversized muffler ensures quieter performance and an ergonomic handle for easy recoil starts. Upper main ball bearing reduces friction and pulling effort for easy starts and provides extra lubrication.

What's Included

  • (1) Engine

Features + Benefits

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  •  8in. mounting base
  • Flywheel brake
  • Electronic ignition
  • 7 ft.-lbs. gross torque
  • Splash lubrication

Key Specs

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Item#740065
Ship Weight30.0 lbs
Engine Displacement (cc)173
Start TypeRecoil
Engine TypeCourage XT-7–OHV
Rated Power (HP)4.5
Torque (ft./lbs.)7
Displacement (cu. in.)10.6
Shaft OutputVertical
Shaft Diameter (in.)7/8
Shaft Length (in.)3 5/32
Shaft Rotation (From PTO Shaft Side)Counterclockwise
Bearing TypeBall
Cylinders (qty.)1
Cylinder BoreCast iron
Bore x Stroke (in.)2.7 x 1.8
Compression Ratio8.5:1
Cooling SystemAir
Fuel TypeGasoline
Fuel Tank Capacity (qt.)1.5 (20 oz.)
Oil Capacity (qt.)0.6
Lubrication SystemSplash
Muffler IncludedYes
Bolt Circle (in.)8
Dimensions L x W x H (in.)17 1/8 x 13 7/8 x 11
EPA/CARB Approval (California Air Resource Board)Yes

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Extended Warranty

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Service Protection Plus

Manufacturer Warranty:
2 years consumer use / 1 year commercial use

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with Service Protection Plus!

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Kohler Courage XT-7 Engine — 173cc, 7/8in. Dia. x 3 5/32in.L Vertical Shaft, Model# XT173-0037 The price is $219.99.
Kohler Courage XT-7 Engine — 173cc, 7/8in. Dia. x 3 5/32in.L Vertical Shaft, Model# XT173-0037
(Not Yet Rated - New)
Item# 740065
In Stock Online
Only $219.99
(Not Yet Rated - New)
Item# 14076
Factory Shipped —
Estimated Delivery: 7 - 12 Business Days
Only $249.99
(Not Yet Rated - New)
Item# 14075
Factory Shipped —
Estimated Delivery: 7 - 12 Business Days
Only $279.99
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Engine Displacement (cc)
173 173 173  
Start Type
Recoil Recoil Recoil  
Application - Rotary lawn mower Pressure washer, log splitter, tiller, sickle bar mower, small riding mower  
Engine Type Courage XT-7–OHV OHV OHV  
Rated Power (HP)
4.5 4 1/2 4 1/2  
Torque (ft./lbs.)
7 7 7  
Displacement (cu. in.)
10.6 10.6 173  
Shaft Output
Vertical CCW CCW  
Crankshaft - Hardened Hardened  
Shaft Diameter (in.) 7/8 25mm 7/8  
Shaft Length (in.) 3 5/32 3 5/32 2 7/16  
Shaft Keyway (in.)
- 3/16 3/16  
Shaft End Tapped (Diameter (in.)/Threads per inch) - 3/8/24 3/8/24  
Shaft Rotation (From PTO Shaft Side) Counterclockwise CCW CCW  
Bearing Type
Ball Flywheel ball bearing Flywheel ball bearing  
Cylinders (qty.)
1 1 1  
Cylinder Bore
Cast iron 2.7 2.7  
Bore x Stroke (in.)
2.7 x 1.8 2.7 x 1.8 2.7 x 1.8  
Compression Ratio
8.5:1 8.5 : 1 8.5 : 1  
Cooling System
Air Air Air  
Air Cleaner Type
- Pleated paper Pleated paper  
Fuel Tank - Composite Yes  
Fuel Type Gasoline Gasoline Gasoline  
Fuel Tank Capacity (qt.)
1.5 (20 oz.) 1.5 1.5  
Fuel Filter
- Internal Internal  
Oil Capacity (qt.)
0.6 0.625 20 oz.  
Lubrication System
Splash Splash Splash  
Ignition System
- Electronic Electronic  
Governor System
- Mechanical Mechanical  
Carburetor
- Float Float  
Throttle Control
- Fixed speed Variable speed w/choke and shutdown  
Choke Control
- Primer bulb Primer bulb  
Max. RPM
- 3,600 1,800–3,300  
Muffler Included
Yes Yes Yes  
Flywheel Brake
- Yes Heavy flywheel w/ no brake  
Bolt Circle (in.)
8 8 8  
Dimensions L x W x H (in.)
17 1/8 x 13 7/8 x 11 17 x 12 1/4 x 11 17 x 12 1/4 x 11  
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes