Compare/Jacobsen Chief 100 vs Jacobsen Javelin 45

Jacobsen Chief 100 vs Jacobsen Javelin 45

Verdict: Jacobsen Chief 100 vs Jacobsen Javelin 45

The Jacobsen Chief 100 and the Jacobsen Javelin 45 are both lawn tractors — here is how they stack up on the figures that matter. Jacobsen Chief 100 leads on rated power with 7 hp against 5 hp. Jacobsen Chief 100 is the newer design (1961 vs 1959). In short: choose the Jacobsen Chief 100 for outright pulling power, or the Jacobsen Javelin 45 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Jacobsen

Fit score

Best match

Clear

Jacobsen

Fit score

Best match

Clear

Rated power

7 hp

5 hp

Confidence

40%

Guide price

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Overview

Manufacturer

JacobsenReference

air-cooled horizontal-shaftReference

air-cooledReference

Variants

100A

electric startReference

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100B

manual startReference

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Engine

Fuel tank

4.7 LReference

Displacement

16.22 ciReference

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Bore/Stroke

73 x 64 mmReference

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Power

5.2 kWReference

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Starter

electricReference

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Starter volts

12Reference

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Power (gross)

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3.4 kWReference

Starter type

—

electricReference

Transmission

Gears

3 forward and 1 reverseReference

1 forward and reverseReference

Dimensions

Wheelbase

106 cmReference

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Front tire

4.00/4.80-8Reference

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Rear tire

6.00-12Reference

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Lawn/turf front

4.00/4.80-8Reference

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Lawn/turf rear

6.00-12Reference

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Length

154 cmReference

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Width

83 cmReference

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Ground clearance

17 cmReference

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Weight

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117 kgReference

Jacobsen Chief 100 attachments

Chief 100 Serial Numbers

Location:

Serial number tag on the lower left of the tractor, above the front axle.Reference

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Electrical

Ground

negativeReference

Battery volts

12Reference

Attachment overview

36" Mower deck

Type

belt-driven gearReference

1-bladeReference

Cutting width

91 cmReference

66 cmReference

Jacobsen Javelin attachments

Javelin Serial Numbers

1959

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4526-xxxxReference

1960

—

4526-xxxxReference

1961

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4526-9101Reference

1962

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45A26-11091Reference

1963

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45A26-15191Reference

1964

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42602-20691Reference

1965

—

42602-26191Reference

1966

—

42602-35123Reference

1967

—

42602-39398Reference

1968

—

42602-44198Reference

1969

—

42602-48097Reference

26" Mower deck

Cut height

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1 to 8 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.