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MODEL 16 hp. (Eng. Mfrs. Rating)/Sovereign
Mfrs. No 871 (3416H), Mfrs. No. 872 (3416S)
Engine   Briggs & Stratton. 4-cycle aircooled single cylinder. 16 hp. 32.4 cu. in. displacement. Synchro-balanced. Stellite exhaust valve and seat. Horizontal crankshaft. Cast iron construction. Fuel capacity, 3 gals.
Governor Adjustable mechanical, fully enclosed and lubricated. Range-1000 to 3600 rpm.
Lubrication Splash type. Capacity 4 pts.
Starting 12 volt electric starter generator with 42 ampere-hour battery, 3 stage voltage regulator, 20 ampere circuit breaker and generator warning light.  Key controlled with solenoid.
Transmission HYDROSTATIC DRIVE: (3416H} 
Complete continuous range of ground speeds in forward and reverse without clutching or shifting...without changing attachment speed.
SHUTTLING DRIVE: (3416S)
4-speed ranges in forward and reverse. Permits instant reversing in any range without clutching or shifting.
Speeds (At 3600 rpm.) HYDROSTATIC DRIVE: 
Forward ... 0 to 7 mph. 
Reverse... 0 to 4 mph.

SHUTTLE DRIVE:
Gear 
1st
2nd
3rd
4th
 Fwd. & Rev.
96 mph.
2.3 mph.
3.7 mph.
5.1 mph.
Differential  All gear, automatically controlled traction type.
Clutch-brake On one pedal. Top of travel declutches Touch-O-Matic belt idler. Further travel applies external band type brake. Separate cam controls parking brake.
Power Takeoffs For front, center and rear attachments. Operate independently of vehicle drive.
Frame Electrically welded heavy gauge steel. Inverted channel construction.
Dimensions (without attachments) 36" wide, 67" long. 39" high to top of steering wheel. 48" wheelbase.
Steering Ratio 4.66:1
Turning Radius 30" inside rear tire
Tires (Pneumatic) Front -- 16 x 6.50 x 8
Rear -- 23 x10.50 x12
Mower Size  42" and 48." Height adjusts from 1-5/8" to 3-1/8".

There's a Simplicity just right for you.

[Source:  Simplicity Lawn Tractors catalog, Form No. 21-005, hand-dated 10/12/72, courtesy of Chris Geise]

 

 

 

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