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Manicure Your Lawn with Precision on the Craftsman 21" 3-in-1 Mower The Craftsman 21" 3-in-1 Mower features a Briggs & Stratton 163cc OHV engine with 7.25 ft. lb. gross torque for super powerful performance and reliability. Choose from side discharge, bagging or mulching to suit your yard's needs. This mower never needs oil changes and the pull cord provides a quick, easy start. Flexible cutting heights range from 1.25" to 3.5" provides exceptional versatility for all lawn or grass types. An EZ Empty rear bagger with Dust Blocker™ reduces the amount of dust while allowing the bag to completely fill with clippings. Low 8" front wheels and high 11" rear wheels provide improved turning and sure-grip traction over all types of terrain.
  • This Craftsman 37451 lawn mower is powered by a Briggs & Stratton Platinum Series 163cc OHV engine with 7.25 ft. lb. of gross torque for dependable starting performance, durability and a long life
  • Equipped with the Briggs & Stratton Smooth Start™ Plus starting system, featuring the Most Reliable Starting Spark Plug and ReadyStart® with no prime, no choke, just pull for power, giving you quick and reliable starting every time
  • Never change the oil for the life of the engine with Briggs & Stratton Just Check & Add™ engine technology
  • Lightest engine in class for easy maneuverability and easy to maintain with tool-less touch points and 2X bigger fuel neck for easy filling
  • Multi-position ergonomic handle can be set at the most comfortable operating position
  • Precision Plus Cutting System delivers high performance bagging and mulching with a durable blade
  • 4-point deck height adjusters with 5 positions for quick height adjustments
  • Mower features an EZ Empty Dust Blocker rear bag
  • The front wheels are 8" and the rear wheels 11" for better maneuverability

Protection Agreements

One smart decision calls for another. Safeguard your new purchase with the best repair and replacement coverage in the business. A Sears Protection Agreement picks up where the limited manufacturer's warranty leaves off. Enjoy the peace of mind that comes from having a plan that delivers what it promises. (Learn More)
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Adjustable Handle No
Handle Length (in.) 45
Handle Material Steel
Handles Fold For Easy Storage Yes
Number of Handle Height Positions 3-position
Installation Requirements:
Assembly Required Fully Assembled
Materials & Finishes:
Cutting Deck Material Steel
Wheels & Tires:
Front Tire Size 8 in
Front Wheel Type Fixed Forward
High Rear Wheels Yes
Rear Tire Size 11 in.
Rim Material Poly
Tire Material Plastic/rubber
Wheel Bearings Front/Rear
Blade Material Steel
Blade Stop Feature No
Blade Width (in.) 2.5
Number of Cutting Positions 5
Safety Lock No
Dimensions and Capacity:
Fuel Capacity (gal.) 2
Overall Dimensions 25 x 24.25 x 17.5
Disposal by Bagging Yes - included
Disposal by Rear Discharge No
Disposal by Side Discharge Yes - included
Product Overview:
Commercial/Residential Residential
General Warranty 2-year limited
Mulch Ready Yes
Controls and Features:
CARB Compliant CARB Compliant
Color and Styling:
Color/Finish Black
CSA Listed No
ETL Listed No
Location 50 State
Cutting Deck Type Precision cut
Cutting Height Adjustment Type 4 point
Cutting Height Range 1.25 in. - 3.44 in.
Cutting Width (In.) 21
Deck Thickness (Gauge) 14
Bag Capacity (CuFt) 2.3
Bag Material poly weave
Bagging Access Rear
Discharge Bag Part Number 582269001
EZ Bagging Access No
Included with Item:
Engine Oil Included Yes
Item Weight (lbs.) 60
Package Contents owner's manual oil, bagger, side discharge deflector
Housing Type Dome
Adjustable Clutch No
Air Filter Type Paper/foam
Electronic Ignition No
Engine Bearings Sealed
Engine Brand Briggs & Stratton(r)
Engine Cycles 4-cycle
Engine Lubrication System Splash
Engine Series 725exi
Engine Displacement (cc) 163
Has Remote Choke No
Maximum Torque (ft-lb) 7.25
Oil Filter No
Overhead Cam Yes
Recommended Oil & Capacity SAE 30, 15.5 oz.
Spark Plug Part Number 33456
Starter Type Pull Start
Throttle Adjustment Auto choke
Engine noise reduction system No
Deck Features:
Deck Cleanout No

Manufacturer's Warranty
1 year parts and labor
SearsOutlet Certified
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