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Briggs & Stratton Intek Vertical OHV Engine With Electric Start— 344cc, 1in. x 3 5/32in. Shaft, Model# 21R707-0084-G1

Item# 44650
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Briggs & Stratton Intek Vertical OHV Engine With Electric Start— 344cc, 1in. x 3 5/32in. Shaft, Model# 21R707-0084-G1

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Only $579.99
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  • Dura-Bore™ cast iron cylinder sleeve provides improved oil control for extended engine life
  • Float carburetor for consistent easy starting
  • Maintenance-free Magnetron electronic ignition for quick, dependable starts
  • Easy to use 12V electric start
  •  Dual circuit alternator has output of 3 Amps DC and 14 Amps AC
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Factory Shipped —
Estimated Delivery: 4 - 6 Business Days
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Not Available in Stores
 

Product Summary

This Briggs & Stratton Intek Vertical OHV Engine delivers excellent reliability with superior performance and durability. This powerful engine has a heavy-duty Teflon-coated bronze sleeve bearing, an automotive-style dipstick and an anti-vibration system. Designed for riding lawn mowers.

What's Included
  •  (1) Engine

Features + Benefits

  • Dura-Bore™ cast iron cylinder sleeve provides improved oil control for extended engine life
  • Float carburetor for consistent easy starting
  • Maintenance-free Magnetron electronic ignition for quick, dependable starts
  • Easy to use 12V electric start
  •  Dual circuit alternator has output of 3 Amps DC and 14 Amps AC
  • Dual-sealing cartridge-style air filter provides maximum protection and extends engine life
  • Automotive-style dipstick for simple oil level checks
  • DuraLube™ gear-driven splash lubrication system continuously supplies oil to all internal parts
  • Teflon-coated bronze sleeve bearing withstands twice the belt load of a standard bearing and reduces wear
  • High-volume cooling fan extends engine life through cooler operating temperatures
  • OHV design runs cooler and cleaner for long life and improved fuel economy
Key Specs
Item# 44650
Brand Briggs & Stratton
Manufacturer's Warranty 24 months parts / 24 months labor
Ship Weight 72.0 lbs
Engine Displacement (cc) 344
Start Type Electric
Application Riding mower
Engine Type Intek OHV
Shaft Output Vertical
Crankshaft 1 x 3 5/32
Shaft Diameter (in.) 1
Shaft Length (in.) 3 5/32
Shaft Keyway (in.) 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 7/16-20
Shaft Rotation (From PTO Shaft Side) Counterclockwise
Gear Reduction No
Bearing Type Plain
Cylinders (qty.) 1
Cylinder Bore Cast iron
Bore x Stroke (in.) 3.44 x 2.26
Compression Ratio 8.5:1
Cooling System Air cooled
Air Cleaner Type Cartridge style
Fuel Tank Not included
Fuel Type Gasoline
Fuel Pump No
Fuel Filter Yes
Oil Capacity (qt.) 1.5
Lubrication System Splash
Low Oil Alert No
Low Oil Shutdown No
Ignition System Electronic
Governor System Mechanical
Carburetor Float
Throttle Control Remote
Choke Control Manual
Max. RPM 3,600
Charging System Amps 3A DC, 14V AC
Muffler Included Yes
Auto Compression Release Yes
Bolt Circle (in.) 10
Dimensions L x W x H (in.) 17 x 17 x 16 1/2
EPA/CARB Approval (California Air Resource Board) Yes

Customer Reviews

Product Question + Answer
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Replacement Parts
Call To Order: 1-800-657-0516

Mon - Fri 7:00 AM - 6:00 PM (Central)
Sat 7:00 AM - 3:00 PM (Central)

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Briggs & Stratton Intek Vertical OHV Engine With Electric Start— 344cc, 1in. x 3 5/32in. Shaft, Model# 21R707-0084-G1 The price is $579.99.
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Hide Similarities
Engine Displacement (cc)
344 344 344 344 344
Start Type
Electric w/recoil backup Recoil Electric Electric Recoil
Application Riding mower Riding mower Riding mower Riding mower Riding mower
Engine Type Intek Intek OHV Intek OHV Intek OHV Intek OHV
Shaft Output
Vertical Vertical Vertical Vertical Vertical
Crankshaft 1 x 3 5/32 1 x 3 5/32 1 x 3 5/32 1 x 3 5/32 1 x 3 5/32
Shaft Diameter (in.) 3 5/32 1 1 1 1
Shaft Length (in.) 1 3 5/32 3 5/32 3 5/32 3 5/32
Shaft Keyway (in.)
1/4 1/4 1/4 1/4 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 7/16-20 7/16-20 7/16-20 7/16-20 7/16-20
Shaft Rotation (From PTO Shaft Side) Counterclockwise Counterclockwise Counterclockwise Counterclockwise Counterclockwise
Gear Reduction
No No No No No
Bearing Type
Plain Plain Plain Plain Plain
Cylinders (qty.)
1 1 1 1 1
Cylinder Bore
Cast iron Cast iron sleeve Cast iron Cast iron sleeve Cast iron sleeve
Bore x Stroke (in.)
3.44 x 2.26 3.44 x 2.26 3.44 x 2.26 3.44 x 2.26 3.44 x 2.26
Compression Ratio
8.5:1 8.5:1 8.5:1 8.5:1 8.5:1
Cooling System
Air cooled Air cooled Air cooled Air cooled Air cooled
Air Cleaner Type
Dual element Cartridge style Cartridge style Cartridge style Cartridge style
Fuel Tank Not included Not included Not included Not included Not included
Fuel Type Gasoline Gasoline Gasoline Gasoline Gasoline
Fuel Pump
Yes No No Yes Yes
Fuel Filter
Yes Yes Yes Yes Yes
Oil Capacity (qt.)
1 1/2 1.5 1.5 1.5 1.5
Lubrication System
Splash Splash Splash Splash Splash
Low Oil Alert
No No No No No
Low Oil Shutdown
No No No No No
Ignition System
Electronic Electronic Electronic Electronic Electronic
Governor System
Mechanical Mechanical Mechanical Mechanical Mechanical
Carburetor
Float Float Float Float Float
Throttle Control
Remote Remote Remote Remote Remote
Choke Control
Manual Manual Manual Manual Manual
Max. RPM
3,300 3,600 3,600 3,600 3,600
Charging System Amps 3A DC, 14V AC - 3A DC, 14V AC 3A DC, 14V AC -
Muffler Included
Yes Yes Yes Yes Yes
Flywheel Brake No - - - -
Auto Compression Release
Yes Yes Yes Yes Yes
Bolt Circle (in.)
10 10 10 10 10
Dimensions L x W x H (in.)
17 1/2 x 16 1/2 x 12 17 x 17 x 16 1/2 17 x 17 x 16 1/2 17 x 17 x 16 1/2 17 x 17 x 16 1/2
EPA/CARB Approval (California Air Resource Board)
Yes Yes Yes Yes Yes