Simplicity 4041 PowrMax

The Simplicity 4041 PowrMax is a tractor produced by Simplicity Lawn Tractors. It is equipped with a 816 cc 49.8 ci engine. The listed engine power is Gasoline (gross): 19.5 hp / 14.5 kW. Transmission: Sundstrand. Operating weight: 1300 lbs 589 kg.

Overview

	1973 - 1974 PowrMax SeriesGarden tractor PowrMax Series Garden tractor

Production
Manufacturer	Simplicity
Garden tractor
Built in Port Washington, Wisconsin, USA

Variants
620	similar Allis Chalmers model

Simplicity 4041 Engine
19.5HP Onan 816cc 2-cyl gasoline
Fuel tank	3.8 gal 14.4 L
Engine details ...

Simplicity 4041 Transmission
hydrostatic
Transmission details ...

Mechanical
Two-wheel drive
Manual steering
Disc brakes
Open operator station.

Hydraulics
Pressure	500 psi 34.5 bar
Pump flow	2.25 gpm 8.5 lpm

Tractor hitch
Rear Type	0

Power Take-off (PTO)
Rear PTO	independent
Clutch	electric
Rear PTO Type	2000
Front PTO	independent
Clutch	electric
Front PTO Type	3600

Dimensions & Tires
Wheelbase	56 inches 142 cm
Weight	1300 lbs 589 kg
Front tire	20x8-10
Rear tire	29x12.50-10
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	flywheel alternator
Charging amps	20
Battery volts	12
Battery AH	45

References
The New Size Tractor 4041 published in 1973, by Simplicity
Owners Manual Pow'r Max
Tractors and Attachments published in 1974, by Simplicity
Operator's Manual Model 1690112 Loader
Operator's Manual System 9000 Loader (TP-1380)

Engine

Engine Detail — 816 cc / 49.8 ci Gasoline

Manufacturer	Onan CCKB
Fuel Type	Gasoline
Configuration	2-cylinder, air-cooled horizontal-shaft opposed-twin
Displacement	816 cc 49.8 ci
Bore/Stroke	3.25x3.00 inches 83 x 76 mm
Power (gross)	19.5 hp 14.5 kW
Air cleaner	paper element
Compression	7:1
Rated RPM	3600
Idle RPM	1200-3850
Starter	electric
Starter volts	12
Sparkplug	Champion H-8
Sparkplug gap	0.025 inches 0.635 mm
Point gap	0.020 inches 0.508 mm
Intake valve clearance	0.007 inches 0.178 mm
Exhaust valve clearance	0.016 inches 0.406 mm
Oil capacity	3.5 qts 3.3 L

Transmission

Transmission — Sundstrand

Transmission	Sundstrand
Type	hydrostatic
Gears	infinite forward and reverse (3-range)
Oil capacity	5 qts 4.7 L
Three-speed gear shift with hydrostatic transmissions. Hydrostatic must be in neutral to shift, although use of the foot clutch is not required or recommended.

4041 Transmission Controls
1	Clutch
2	Throttle
3	Forward/reverse
4	Left brake
5	Right brake

Dimensions

Simplicity 4041 Tires
Ag front	4.00x12
Ag rear	8x16
Lawn/turf front	20x8-10
Lawn/turf rear	29x12.50-10

Dimensions
Wheelbase	56 inches 142 cm
Length	83 inches 210 cm
Width	43.3 inches (min) 109 cm
	56.5 inches (max) 143 cm
Height (steering wheel)	48 inches 121 cm
Shipping weight	1300 lbs 589 kg

Attachments

Attachment overview
60" mid-mount mower deck
Snowblower
Blade
Front-end loader
The Simplicity 4041 was advertised with a single-bottom 12-inch plow or 48-inch rear tiller for gardening. In addition to the belly mower, a 48-inch rear mower or 57-inch sickle bar could be fitted.

60" Mower deck
Type	mid-mount Simplicity
	3-blade with hydraulic lift
Cutting width	60 inches 152 cm
Cut height	1.625 to 3 inch 4 to 7 cm

Photos

Simplicity 4041 PowrMax

Simplicity 4041 operator station and controls.