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Briggs & Stratton 2100 Series Horizontal OHV Engine — 420cc, Model# 25T237-0045-F1

Item# 51632
 
 
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Briggs & Stratton 2100 Series Horizontal OHV Engine — 420cc, Model# 25T237-0045-F1

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Only $519.99
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  • Overhead valve design runs cooler and cleaner, delivering more power, longer engine life and improved fuel economy
  •  Aluminized Lo-Tone muffler resists corrosion for longer life and provides exceptionally quiet operation
  • Dual ball bearings reduce wear for longer life
  • Dura-Bore™ cast iron cylinder sleeve withstands wear and abuse while providing improved oil control
  • DuraLube® gear-driven splash lubrication system continuously supplies oil to all internal parts
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Estimated Delivery: 5 - 7 Business Days
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Product Summary

The Briggs & Stratton 2100 Series Horizontal OHV Engine provides easy starting with Magnetron® electronic ignition and OHV for greater durability and reduced emissions. Includes a Maxi-Clean™ air filter and a Lo-Tone muffler. Great for high-performance mowing.

What's Included
  •  (1) Engine, Model# 25T237-0045-F1

Features + Benefits

  • Overhead valve design runs cooler and cleaner, delivering more power, longer engine life and improved fuel economy
  •  Aluminized Lo-Tone muffler resists corrosion for longer life and provides exceptionally quiet operation
  • Dual ball bearings reduce wear for longer life
  • Dura-Bore™ cast iron cylinder sleeve withstands wear and abuse while providing improved oil control
  • DuraLube® gear-driven splash lubrication system continuously supplies oil to all internal parts
  • Flat panel pleated automotive-type air filter for superior engine protection
  • Magnetron electronic ignition delivers quick, dependable starts with no maintenance required
Key Specs
Item# 51632
Brand Briggs & Stratton
Manufacturer's Warranty 24 months parts / 24 months labor
Ship Weight 74.0 lbs
Engine Displacement (cc) 420
Start Type Electric
Engine Type OHV
Torque (ft./lbs.) 21
Shaft Output Horizontal
Crankshaft 1 x 3 31/64
Shaft Diameter (in.) 1
Shaft Length (in.) 3 31/64
Shaft Keyway (in.) 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 7/16-24
Gear Reduction No
PTO Height (in.) 5 1/4
Bearing Type Dual ball
Cylinders (qty.) 1
Cylinder Bore Aluminum cast iron sleeve
Bore x Stroke (in.) 3.54 x 2.6
Cooling System Air cooled
Air Cleaner Type Pleated paper w/foam pre-cleaner
Fuel Tank Yes
Fuel Type Gasoline
Fuel Tank Capacity (qt.) 6.9
Fuel Pump Gravity fed
Fuel Filter In-tank
Oil Capacity (qt.) 1 5/32 (37 oz.)
Lubrication System Splash
Low Oil Alert Yes, Oil Guard
Low Oil Shutdown No
Ignition System Magnetron electronic ignition
Governor System Mechanical
Carburetor Float-fed
Throttle Control Manual
Choke Control Manual
Max. RPM 3,600
Charging System Amps 9
Muffler Included Yes
Flywheel Brake No
Auto Compression Release Yes
Bolt Circle (in.) 3 5/8, 5, 6 1/2
Mounting Base L x W (in.) 7.69 x 4.05
Mounting Bolt Pattern L x W (in.) 7.69 x 4.05
Dimensions L x W x H (in.) 19 5/8 x 16 1/4 x 18 1/4
EPA/CARB Approval (California Air Resource Board) Yes

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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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Item# 51632
Briggs & Stratton 2100 Series Horizontal OHV Engine — 420cc, Model# 25T237-0045-F1 The price is $519.99.
Briggs & Stratton 2100 Series Horizontal OHV Engine — 420cc, Model# 25T237-0045-F1
(Not Yet Rated - New)
 
Only $519.99
Engine Displacement (cc)
570 479 570 479 420
Start Type
Electric w/recoil backup Electric w/recoil backup Electric Electric Electric
Application Compressor, pressure washer, conveyor Compressor, pressure washer, conveyor Compressor, pressure washer, conveyor Compressor, pressure washer, conveyor -
Engine Type Vanguard V-Twin OHV Vanguard V-Twin OHV Vanguard V-Twin OHV Vanguard V-Twin OHV OHV
Torque (ft./lbs.)
- - - 24.00 21
Shaft Output
Horizontal Horizontal Horizontal Horizontal Horizontal
Crankshaft - - - - 1 x 3 31/64
Shaft Diameter (in.) 1 1 1 1 1
Shaft Length (in.) 2 29/32 2 29/32 2 29/32 2 29/32 3 31/64
Shaft Keyway (in.)
1/4 1/4 1/4 1/4 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 3/8–24 3/8–24 3/8–24 3/8–24 7/16-24
Shaft Rotation (From PTO Shaft Side) Counterclockwise Counterclockwise Counterclockwise Counterclockwise -
Gear Reduction
- - - - No
PTO Height (in.)
5 1/4 5 1/4 5 1/4 5 1/4 5 1/4
Bearing Type
Ball Ball Ball Ball Dual ball
Cylinders (qty.)
2 2 2 2 1
Cylinder Bore
Cast iron Cast iron Cast iron Cast iron Aluminum cast iron sleeve
Bore x Stroke (in.)
2.83 x 2.75 2.68 x 2.60 2.83 x 2.76 2.68 x 2.60 3.54 x 2.6
Cooling System
Air cooled Air cooled Air cooled Air cooled Air cooled
Air Cleaner Type
Dual element Dual element Dual element Dual element Pleated paper w/foam pre-cleaner
Fuel Tank Yes Yes Not included Not included Yes
Fuel Type Gasoline Gasoline Gasoline Gasoline Gasoline
Fuel Tank Capacity (qt.)
9 9 - - 6.9
Fuel Pump
No No Yes, (Pulse) Yes, (Pulse) Gravity fed
Fuel Filter
- - - - In-tank
Oil Capacity (qt.)
1.5 (48 oz.) 1.5 (48 oz) 1.5 (48 oz.) 1.5 (48 oz.) 1 5/32 (37 oz.)
Lubrication System
Full pressure Full pressure Full pressure Full Pressure Splash
Low Oil Alert
- - Yes - Yes, Oil Guard
Low Oil Shutdown
- - - - No
Ignition System
Electronic Electronic Electronic Electronic Magnetron electronic ignition
Governor System
Mechanical Mechanical Mechanical Mechanical Mechanical
Carburetor
Float Float Float Float Float-fed
Throttle Control
Adjustable for a constant speed operation, manual friction, remote Adjustable for a constant speed operation, manual friction, remote Adjustable for a constant speed operation, manual friction, remote Adjustable for a constant speed operation, manual friction, remote Manual
Choke Control
Manual, remote Manual, remote Manual, remote Manual, remote Manual
Max. RPM
3,600 3,600 3,600 3,600 3,600
Charging System Amps 16 16 16 16 9
Muffler Included
Yes Yes No No Yes
Flywheel Brake
- - - - No
Auto Compression Release
- - - - Yes
Bolt Circle (in.)
5, 6 1/2, 7 3/4 5, 6 1/2, 7 3/4 5, 6 1/2, 7 3/4 5, 6 1/2, 7 3/4 3 5/8, 5, 6 1/2
Mounting Base L x W (in.)
- - - - 7.69 x 4.05
Mounting Bolt Pattern L x W (in.) 7 11/16 x 4 7 11/16 x 4 1/16 7 11/16 x 4 7 11/16 x 4 1/16 7.69 x 4.05
Dimensions L x W x H (in.)
12.5 x 16 x 23 12 5/16 x 16 1/8 x 19 13 3/8 x 16 1/8 x 17 1/4 12 5/16 x 16 1/8 x 19 19 5/8 x 16 1/4 x 18 1/4
EPA/CARB Approval (California Air Resource Board)
Yes No Yes - Yes