WhichTractor
  • Vehicle type: unspecified
  • WhichTractor size: Utility
  • No lab test on file
  • 1916–1918
  • 5,802 built

It was ranked on an engine power figure whose source does not say gross or net. WhichTractor size, not the maker’s category

We looked and the record does not say what this machine is. How we decide what a machine is

J.I. Case 8-18 specs: hp, weight, years

The manufacturer claimed 18.0 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.

Engine power, claimed · gross or net not stated

18.0 hp

13.4 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Case 9-18”, claimed

This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.

Weight
3,770 lb
Top speed
3.5 mph

J.I. Case 8-18 specs: key facts

  • The J.I. Case 8-18 was built from 1916 to 1918.

  • The J.I. Case 8-18 has a claimed engine power (gross or net not stated) of 13.4 kW (18.0 hp); it has no measured PTO figure.

  • The J.I. Case 8-18 is two-wheel drive (2WD).

  • The J.I. Case 8-18 weighs 1,710 kg (3,770 lb) unladen.

Source · Traktorenlexikon, “Case 9-18”

How does the 8-18 compare with its class?

  • Limitation:

    Two forward gears is low for its class — 67% below the median of 6 across the 75 machines within 10% of its power that hold this figure.

Derived by WhichTractor from 78 comparable records. How we work this out

Illustration of the 1916–1918 J.I. Case 8-18, a 18 hp farm tractor, operator station not recorded — shown as an open platform, a drawing generated from its specification record
Illustration — not a photograph · operator station not recorded — shown as an open platform

How much horsepower does an 8-18 have?

The only figure for the 8-18 is 18.0 hp (13.4 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.

Engine, claimed (gross/net not stated)
18.0 hp

Source · Traktorenlexikon, “Case 9-18”

What transmission does an 8-18 have?

Transmission specifications for the 8-18 are below.

Transmission — 8-18 transmission specifications
ClutchHand-lever operated expanding shoe clutch
BrakesHand-lever operated brake acting on the rear wheels
SteeringMechanical steering
Top speed3.5 mph · 5.63 km/h

Source · Traktorenlexikon, “Case 9-18”

How much does an 8-18 weigh?

An 8-18 weighs 3,770 lb (1,710 kg) unladen.

Weights & dimensions — 8-18 weights and dimensions
Unladen weight3,770 lb · 1,710 kg
Wheelbase72.0 in · 1,829 mm
Length123.0 in · 3,124 mm
Width58.0 in · 1,473 mm
Height61.0 in · 1,549 mm

Source · Traktorenlexikon, “Case 9-18”

What oil does an 8-18 take, and how much?

Fluid capacities for the 8-18 are below.

8-18 fluid capacities, grades and service intervals
SystemCapacity
Cooling system36.0 qt · 34.1 LSource: Traktorenlexikon, “Case 9-18” · single source, not independently verified

Always confirm against the operator’s manual for your machine before service.

Which tractors compare with an 8-18?

Within 10% of its 18.0 hp of claimed engine power, the same type, and first built within 15 years of it.

Common questions about the J.I. Case 8-18

Is an 8-18 two-wheel drive or four-wheel drive?

The J.I. Case 8-18 is two-wheel drive (2WD).

Sources and how this page was built

Compiled from Traktorenlexikon, “Case 9-18”.

Sources checked

14 SEP 2026

Spotted an error?

Sources

Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution

  1. Traktorenlexikon: Case 9-18 — CC BY-SA 4.0, WIKIBOOKS-TL-115155 · revision 969184. Wikibooks contributors (Traktorenlexikon). Original document