WhichTractor
  • Rigid chassis
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1963–1973

It sits on the utility/standard-size boundary, so either size is a fair description. It was ranked on an engine power figure whose source does not say gross or net. WhichTractor size, not the maker’s category

Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is

UTB U 650/651 specs: hp, weight, years

UTB D-103 four-cylinder diesel. The manufacturer claimed 64.1 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.

Engine power, claimed · gross or net not stated

64.1 hp

47.8 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “UTB U 650”, 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
6,724 lb
Hyd. flow
10.6 gpm
Top speed
16.8 mph

UTB U 650/651 specs: key facts

  • The UTB U 650/651 was built from 1963 to 1973.

  • The UTB U 650/651 has a claimed engine power (gross or net not stated) of 47.8 kW (64.1 hp); it has no measured PTO figure.

  • The UTB U 650/651 was offered in two-wheel-drive and four-wheel-drive versions.

  • The UTB U 650/651 has a UTB D-103 engine, a 4-cylinder 4.76 L diesel unit.

  • The UTB U 650/651 weighs 3,050 kg (6,724 lb) unladen.

  • The UTB U 650/651 has a rear PTO running at 540 rpm.

  • The hydraulic pump of the UTB U 650/651 delivers 40.0 L/min (10.6 gpm).

Source · Traktorenlexikon, “UTB U 650”

Illustration of the 1963–1973 UTB U 650/651, a 64 hp farm tractor, four-wheel-drive version · colour not recorded — shown unpainted · operator station not recorded — shown as an open platform, a drawing generated from its specification record
Illustration — not a photograph · four-wheel-drive version · colour not recorded — shown unpainted · operator station not recorded — shown as an open platform

How much horsepower does a U 650/651 have?

The only figure for the U 650/651 is 64.1 hp (47.8 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)
64.1 hp

Source · Traktorenlexikon, “UTB U 650”

What engine is in a U 650/651?

A U 650/651 has a UTB D-103, a 4-cylinder 4.76 L diesel engine.

Engine — U 650/651 engine specifications
Make & modelUTB D-103
Cylinders4, liquid-cooled
Displacement290.7 ci · 4.76 L
InjectionDirect injection method
Electrical system12 V

Source · Traktorenlexikon, “UTB U 650”

How much will a U 650/651 lift, and what is its hydraulic flow?

Hydraulic and PTO specifications for the U 650/651 are below.

Hydraulics & PTO — U 650/651 hydraulics and PTO specifications
Pump flow10.6 gpm · 40.0 L/min
Pressure1,856 psi · 128 bar
Rear PTO540 rpm

Source · Traktorenlexikon, “UTB U 650”

What transmission does a U 650/651 have?

Transmission specifications for the U 650/651 are below.

Transmission — U 650/651 transmission specifications
ClutchPedal-operated dry single-plate clutch
BrakesPedal-operated dry disc brake acting on the side shafts
SteeringHydraulic steering with double-acting steering cylinder
Top speed16.8 mph · 27 km/h

Source · Traktorenlexikon, “UTB U 650”

How much does a U 650/651 weigh?

A U 650/651 weighs 6,724 lb (3,050 kg) unladen.

Weights & dimensions — U 650/651 weights and dimensions
Unladen weight6,724 lb · 3,050 kgtwo-wheel-drive version
Maximum permissible mass9,921 lb · 4,500 kg
Maximum front axle load2,425 lb · 1,100 kg
Maximum rear axle load7,496 lb · 3,400 kg
Wheelbase95.7 in · 2,430 mm
Length166.5 in · 4,230 mm
Width78.7 in · 2,000 mm
Height97.6 in · 2,480 mm
Ground clearance18.9 in · 480 mm
Front track52.0–77.6 in · 1,320–1,970 mm
Rear track55.1–80.7 in · 1,400–2,050 mm
Turning radius, braked11.9 ft · 3.64 mtwo-wheel-drive version

Source · Traktorenlexikon, “UTB U 650”

What oil does a U 650/651 take, and how much?

Fluid capacities for the U 650/651 are below.

U 650/651 fluid capacities, grades and service intervals
SystemCapacity
Cooling system42.3 qt · 40.0 LSource: Traktorenlexikon, “UTB U 650” · single source, not independently verified

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

Which tractors compare with a U 650/651?

Within 10% of its 64.1 hp of claimed engine power, the same type, and first built within 15 years of it.

Common questions about the UTB U 650/651

Is a U 650/651 two-wheel drive or four-wheel drive?

The UTB U 650/651 was offered in two-wheel-drive and four-wheel-drive versions.

What PTO does a U 650/651 have?

A U 650/651 has a 540 rpm rear PTO.

Sources and how this page was built

Compiled from Traktorenlexikon, “UTB U 650”.

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: UTB U 650 — CC BY-SA 4.0, WIKIBOOKS-TL-46870 · revision 1054399. Wikibooks contributors (Traktorenlexikon). Original document