25T237-0045-F1

New product

XR2100
Professional
SeriesTM
420 CC
2100 Series Engine
21.0 Gross Torque
25T237-0045-F1
Crankshaft: 1 x 3-31/64,
Tapped 7/16-20, 1/4 Keyway
Starter Type: Recoil
Warranty: 2-year limited consumer,
1-year limited commercial
Bore 3.54 in. (89.92 mm)
Stroke 2.60 in. (66.04 mm)
Oil Capacity 37 fl. oz. (1.09 L)

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LTL Freight Only

$658.88

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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.

Features 
  • 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# 25T237-0045-F1
Brand Briggsand Stratton
Manufacturer's Warranty 24 months parts / 24 months labor
Ship Weight 74.0 lbs
Engine Displacement (cc) 420
Engine Type OHV
Shaft Diameter (in.) 1
Shaft Length (in.) 3 31/64
Start Type Electric
Shaft Output Horizontal
Crankshaft 1 x 3 31/64
Shaft Keyway 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) 7/16-24
Gear Reduction No
PTO Height 5 1/4
Bearing Type Dual ball
Cylinders (qty.) 1
Cylinder Bore Aluminum
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
CARB Approval Yes
Bolt Circle (in.) 3 5/8, 5, 6 1/2
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

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25T237-0045-F1

25T237-0045-F1

XR2100
Professional
SeriesTM
420 CC
2100 Series Engine
21.0 Gross Torque
25T237-0045-F1
Crankshaft: 1 x 3-31/64,
Tapped 7/16-20, 1/4 Keyway
Starter Type: Recoil
Warranty: 2-year limited consumer,
1-year limited commercial
Bore 3.54 in. (89.92 mm)
Stroke 2.60 in. (66.04 mm)
Oil Capacity 37 fl. oz. (1.09 L)

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