Compare/Craftsman 131.8550 vs Craftsman 131.9631

Craftsman 131.8550 vs Craftsman 131.9631

Verdict: Craftsman 131.8550 vs Craftsman 131.9631

The Craftsman 131.8550 and the Craftsman 131.9631 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 6 hp. Craftsman 131.9631 is the lighter machine (117 kg vs 356 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Craftsman 131.9631 is the newer design (1969 vs 1967). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Craftsman

Fit score

Best match

Clear

Craftsman

Fit score

Best match

Clear

Rated power

6 hp

Confidence

40%

Guide price

—

Overview

Distributor

Craftsman (a part of Sears)Reference

Manufacturer

RoperReference

air-cooled horizontal-shaftReference

air-cooled vertical-shaftReference

Variants

131.8550

electric startReference

—

131.8540

recoil startReference

—

131.9631

—

recoil startReference

131.9635

—

electric startReference

Engine

Displacement

13.53 ciReference

13.5 ciReference

Bore/Stroke

67 x 64 mmReference

Power (gross)

4.5 kWReference

—

Starter

electricReference

—

Starter volts

12Reference

—

Sparkplug gap

0.762 mmReference

—

Point gap

0.508 mmReference

—

Intake valve clearance

0.254 mmReference

—

Exhaust valve clearance

0.254 mmReference

—

Power

—

4.5 kWReference

Starter type

—

manual recoilReference

Transmission

Gears

3 forward and 1 reverseReference

Dimensions

Weight

356 to 432 poundsReference

117 kgReference

Front tire

12.50x3.75Reference

10.00x3Reference

Rear tire

16x5.25Reference

12.50x4.5Reference

Lawn/turf front

12.50x3.75Reference

10.00x3Reference

Lawn/turf rear

16x5.25Reference

12.50x4.5Reference

Shipping weight

195 kgReference

117 kgReference

Length

—

128 cmReference

Width

—

74 cmReference

Height (steering wheel)

—

80 cmReference

Craftsman 131.8550 attachments

Electrical

Ground

negativeReference

—

Battery volts

12Reference

—

36" Mower deck

Type

belt-driven gearReference

Cutting width

91 cmReference

66 cmReference

Craftsman 131.9631 attachments

26" Mower deck

Cut positions

—

5Reference

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.