WhichTractor
  • Vehicle type: unspecified
  • Rigid chassis
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1967–1971
  • 2,117 built

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

International Harvester 856 (4WD) specs: hp, weight, years

INTERNATIONAL HARVESTER C-301 six-cylinder. The manufacturer claimed 101 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.

Engine power, claimed · gross or net not stated

101 hp

75 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “IHC 856”, 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
8,600 lb
Hyd. flow
12.0 gpm
Top speed
18.6 mph

International Harvester 856 (4WD) specs: key facts

  • The International Harvester 856 (4WD) was built from 1967 to 1971.

  • The International Harvester 856 (4WD) has a claimed engine power (gross or net not stated) of 75 kW (101 hp); it has no measured PTO figure.

  • The International Harvester 856 (4WD) was offered in two-wheel-drive and four-wheel-drive versions.

  • The International Harvester 856 (4WD) has a INTERNATIONAL HARVESTER C-301 engine, a 6-cylinder unit.Source 1

  • The International Harvester 856 (4WD) weighs 3,901 kg (8,600 lb) unladen.

  • The International Harvester 856 (4WD) has a rear PTO running at 540/1000 rpm.

  • The hydraulic pump of the International Harvester 856 (4WD) delivers 45.5 L/min (12.0 gpm).

Source · Traktorenlexikon, “IHC 856”

How does the 856 (4WD) compare with its class?

  • Strength:

    A maximum engine torque of 442 N·m is high for its class — 19% above the median of 370 N·m across the 282 machines within 10% of its power that hold this figure.

  • Limitation:

    Eight forward gears is low for its class — 50% below the median of 16 across the 316 machines within 10% of its power that hold this figure.

Derived by WhichTractor from 331 comparable records. How we work this out

Illustration of the 1967–1971 International Harvester 856 (4WD), a 101 hp farm tractor, four-wheel-drive version · cab was optional — shown without it, a drawing generated from its specification record
Illustration — not a photograph · four-wheel-drive version · cab was optional — shown without it

How much horsepower does an 856 (4WD) have?

The only figure for the 856 (4WD) is 101 hp (75 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)
101 hp

Source · Traktorenlexikon, “IHC 856”

What engine is in an 856 (4WD)?

An 856 (4WD) has an INTERNATIONAL HARVESTER C-301, a 6-cylinder engine.

Engine — 856 (4WD) engine specifications
Make & modelINTERNATIONAL HARVESTER C-301Source 1
Cylinders6, liquid-cooledSource 1
Max torque326 lb·ft · 442 N·m @ 1,200 rpm
InjectionRoosa Master injection pump
Electrical system12 V

Source · Traktorenlexikon, “IHC 856”

How much will an 856 (4WD) lift, and what is its hydraulic flow?

Hydraulic and PTO specifications for the 856 (4WD) are below.

Hydraulics & PTO — 856 (4WD) hydraulics and PTO specifications
Pump flow12.0 gpm · 45.5 L/minFrom the Traktorenlexikon article's hydraulics section.
Rear PTO540/1000 rpm @ 2,100 engine rpm

Source · Traktorenlexikon, “IHC 856”

What transmission does an 856 (4WD) have?

Transmission specifications for the 856 (4WD) are below.

Transmission — 856 (4WD) transmission specifications
Top speed18.6 mph · 30 km/h

Source · Traktorenlexikon, “IHC 856”

How much does an 856 (4WD) weigh?

An 856 (4WD) weighs 8,600 lb (3,901 kg) unladen.

Weights & dimensions — 856 (4WD) weights and dimensions
Unladen weight8,600 lb · 3,901 kgF: 3,856
Wheelbase101.0 in · 2,565 mmF: 2,565
Length167.0 in · 4,242 mm
Width80.0 in · 2,032 mm
Height86.0 in · 2,184 mm
Ground clearance22.0 in · 559 mm
Front track57.0 in · 1,448 mmF: 254-356
Rear track60.0–72.0 in · 1,524–1,829 mmF: 1,422-2,184
Turning radius, braked11.0 ft · 3.35 mF: 2,896

Source · Traktorenlexikon, “IHC 856”

What oil does an 856 (4WD) take, and how much?

An 856 (4WD) engine takes 9.0 qt (8.5 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.

856 (4WD) fluid capacities, grades and service intervals
SystemCapacity
Engine oil9.0 qt · 8.5 LSource: Traktorenlexikon, “IHC 856” · single source, not independently verified
Transmission & hydraulic68.1 qt · 64.4 LSource: Traktorenlexikon, “IHC 856” · single source, not independently verified
Cooling system21.0 qt · 19.9 LSource: Traktorenlexikon, “IHC 856” · single source, not independently verified

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

Which tractors compare with an 856 (4WD)?

Within 10% of its 94.3 hp at the PTO as the maker claimed it, with no laboratory test on file, the same type, and first built within 15 years of it.

Common questions about the International Harvester 856 (4WD)

Is an 856 (4WD) two-wheel drive or four-wheel drive?

The International Harvester 856 (4WD) was offered in two-wheel-drive and four-wheel-drive versions.

What PTO does an 856 (4WD) have?

An 856 (4WD) has a 540/1000 rpm rear PTO.

Sources and how this page was built

Compiled from Traktorenlexikon, “IHC 806”; and Traktorenlexikon, “IHC 856”.

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: IHC 806 — CC BY-SA 4.0, WIKIBOOKS-TL-118729 · revision 1032560. Wikibooks contributors (Traktorenlexikon). Original document
  2. Traktorenlexikon: IHC 856 — CC BY-SA 4.0, WIKIBOOKS-TL-118756 · revision 1055523. Wikibooks contributors (Traktorenlexikon). Original document