Compare/Sears GT/18 vs Sears LT1642

Sears GT/18 vs Sears LT1642

Verdict: Sears GT/18 vs Sears LT1642

The Sears GT/18 and the Sears LT1642 are both lawn tractors — here is how they stack up on the figures that matter. Sears GT/18 leads on rated power with 18 hp against 16 hp. Sears LT1642 is the lighter machine (252 kg vs 280 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Sears GT/18 holds more fuel (12.3 L vs 11.4 L) for longer stints between fills. In short: choose the Sears GT/18 for outright pulling power, or the Sears LT1642 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Sears

Fit score

Best match

Clear

Sears

Fit score

Best match

Clear

Rated power

18 hp

16 hp

Confidence

40%

Guide price

—

Overview

Distributor

SearsReference

Manufacturer

RoperReference

MurrayReference

air-cooled horizontal-shaft opposed twinReference

air-cooled vertical-shaftReference

Original price

—

$1,679 (1979 )Reference

Variants

GT/18

gearReference

—

GT18H

hydrostaticReference

—

Engine

Fuel tank

12.3 LReference

11.4 LReference

Displacement

47.7 ciReference

—

Bore/Stroke

83 x 73 mmReference

—

Power (gross)

13.4 kWReference

11.9 kWReference

Starter

electricReference

Starter volts

12Reference

Oil capacity

4.7 LReference

—

Oil change

480 hReference

—

Transmission

PeerlessReference

—

Type

belt-driven gearReference

Gears

6 forward and 2 reverseReference

5 forward and 1 reverseReference

Oil type

SAE 30Reference

—

PTO & Hydraulics

Front PTO

independentReference

—

Clutch

mechanical idler pulleyReference

—

Dimensions

Weight

280 kgReference

252 kgReference

Front tire

16x6.50-8Reference

15x6.00Reference

Rear tire

23x10.00-12Reference

18x9.50Reference

Lawn/turf front

16x6.50-8Reference

15x6.00Reference

Lawn/turf rear

23x10.00-12Reference

18x9.50Reference

Length

173 cmReference

160 cmReference

Width

92 cmReference

129 cmReference

Height

101 cmReference

96 cmReference

Shipping weight

280 kgReference

252 kgReference

Sears GT/18 attachments

GT/18 Serial Numbers

1978

917.25706 (model code)Reference

502.25519 (model code)Reference

1979

917.25711 (model code)Reference

502.25532 (model code)Reference

Electrical

Ground

negativeReference

Charging system

alternatorReference

—

Charging amps

15Reference

—

Battery volts

12Reference

Battery AH

—

39Reference

Attachment overview

Sears LT1642 attachments

LT1642 Serial Numbers

42" Mower deck

Cutting width

—

106 cmReference

Overall width

—

139 cmReference

Cut height

—

4 to 9 cmReference

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.