Craftsman lawn tractors

Craftsman 917.28721

The Craftsman 917.28721 is a 2007 lawn tractor from the YS 4500 Series built by AYP and distributed by Craftsman (a part of Sears). It features a 21 hp Briggs & Stratton gasoline engine, a 6-speed gear transmission (Dana D6800), and two-wheel drive with manual steering. The tractor has an open operator station and supports attachments including a 42" mid-mount mower deck, snowblower, and blade. Electrical system includes a 12-volt battery with 230 CCA and 28 AH capacity.
Power21 hp
Founded42" deck
Model917.28721

Technical Specifications

Detailed specifications and technical data for Craftsman 917.28721

Engine
Typegasoline, air-cooled
ModelBriggs & Stratton 311877
Starterelectric
Fuel tank2.5 gal (9.5 L)
SparkplugChampion RC12YC
Air cleanerpaper
Oil capacity1.75 qts (1.7 L)
Power (gross)21 hp (15.7 kW)
Sparkplug gap0.030 inches (0.762 mm)
Starter volts12
General
TypeLawn tractor
Year2007
DriveTwo-wheel drive
SeriesYS 4500 Series
Steeringmanual
DistributorCraftsman (a part of Sears)
ManufacturerAYP
Operator stationOpen operator station
Electrical
Groundnegative
Battery AH28
Battery CCA230
Battery GroupU1R
Battery volts12
Charging amps5 (battery), 3 (headlights)
Attachments
Blade42 inches width, front-mount, manual-lift
Snowblower42 inches width, 2-stage, front-mount, manual-lift
42" mid-mount mower deck42 inches cutting width, 1 to 4 inch cut height (2 to 10 cm), 2-blade with manual lift
Transmission
Typegear
Gears6 forward and 1 reverse
ModelDana D6800