International Harvester 4166 Transmission specs

The fastest speed on record for a 4166 is 18.6 mph (30 km/h). The gearbox itself is not on record yet.

11 transmission values on record for the 4166.

Engine power, claimed · gross or net not stated

150.9 hp

112.5 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “IHC 4166”, 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 4166 go?

The fastest speed on record for a 4166 is 18.6 mph (30 km/h). The gearbox itself is not on record yet.

Transmission — 4166 Transmission
Drive	4WD
Forward gears	8
Reverse gears	4
Transmission as described	8 forward/4 reverse
Clutch	Pedal operated dry single plate clutch
Top speed forward	18.6 mph · 30 km/h
Top speed reverse	6.7 mph · 10.86 km/hhighest reverse speed printed in the article's speed tables
Service brakes	Hydraulically operated disc brakes acting on the differential side shafts
Steering	Hydraulic four wheel steering with servo assistance
Differential lock	Mechanically operated differential lock
Front axle	Oscillating front axle

Source · Traktorenlexikon, “IHC 4166”

11 transmission values from Traktorenlexikon, “IHC 4166”.

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 4166 — CC BY-SA 4.0, WIKIBOOKS-TL-118936 · revision 1035386. Wikibooks contributors (Traktorenlexikon). Original document