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Simplicity Broadmoor 717 990425 vs Simplicity Yeoman 637
Verdict: Simplicity Broadmoor 717 990425 vs Simplicity Yeoman 637
The Simplicity Broadmoor 717 990425 and the Simplicity Yeoman 637 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 7 hp. Simplicity Broadmoor 717 990425 is the lighter machine (185 kg vs 268 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Simplicity Yeoman 637 is the newer design (1972 vs 1968). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
Simplicity
62
Fit score
Best match
Clear
Simplicity
62
Fit score
Best match
Clear
Rated power
7 hp
7 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Simplicity (a part of Allis Chalmers)Reference
Simplicity (a part of Allis Chalmers)Reference
air-cooled vertical-shaftReference
air-cooled vertical-shaftReference
Variants
990424
recoil startReference
—
990425
electric startReference
—
Engine
Displacement
16.79 ciReference
16.79 ciReference
Bore/Stroke
76 x 60 mmReference
76 x 60 mmReference
Power (gross)
5.2 kWReference
5.2 kWReference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Fuel tank
—
3.8 LReference
Oil capacity
—
1.0 LReference
Transmission
Gears
2 forward and 1 reverseReference
3 forward and 1 reverseReference
PTO & Hydraulics
Front PTO
independentReference
—
Clutch
mechanicalReference
manualReference
Mid PTO
—
independentReference
Dimensions
Wheelbase
105 cmReference
92 cmReference
Weight
43 kgReference
130 kgReference
Front tire
5.30x6Reference
4.10/3.50x6Reference
Rear tire
9.50x8Reference
16-6.50x8Reference
Lawn/turf front
5.30x6Reference
4.10/3.50x6Reference
Lawn/turf rear
9.50x8Reference
16-6.50x8Reference
Length
144 cmReference
135 cmReference
Height (steering wheel)
85 cmReference
83 cmReference
Height (hood)
80 cmReference
72 cmReference
Shipping weight
185 kgReference
—
Rear tread
—
54 cmReference
Simplicity Broadmoor 717 attachments
Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
Attachment overview
36" Mower deck
Type
belt-driven gearReference
belt-driven gearReference
Cutting width
91 cmReference
81 cmReference
Cut height
4 to 7 cmReference
4 to 7 cmReference
Simplicity Yeoman 637 attachments
32" Mower deck
Overall width
—
91 cmReference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.