International Harvester 4156 Transmission specs

The fastest speed on record for a 4156 is 18.6 mph (30 km/h). The gearbox itself is not on record yet.

11 transmission values on record for the 4156.

Engine power, claimed · gross or net not stated

138 hp

103 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “IHC 4156”, 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.

How fast will a 4156 go?

The fastest speed on record for a 4156 is 18.6 mph (30 km/h). The gearbox itself is not on record yet.

Transmission — 4156 Transmission
Drive	4WD
Forward gears	8
Reverse gears	4
Transmission as described	8 forward/4 reverse
Clutch	Pedal operated dry single plate clutch type 14 inches
Top speed forward	18.6 mph · 30 km/h
Top speed reverse	6.8 mph · 10.94 km/hhighest reverse speed printed in the article's speed tables
Service brakes	Hydraulically operated disc brakes acting on differential side shafts
Steering	Hydraulic steering with servo assistance
Differential lock	Mechanically operated differential lock
Front axle	Oscillating front axle

Source · Traktorenlexikon, “IHC 4156”

11 transmission values from Traktorenlexikon, “IHC 4156”.

Sources checked

14 SEP 2026

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

Traktorenlexikon: IHC 4156 — CC BY-SA 4.0, WIKIBOOKS-TL-118789 · revision 1033795. Wikibooks contributors (Traktorenlexikon). Original document