WhichTractor
  • Rigid chassis
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1998–2003

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

VALMET 8550 HiTech specs: hp, weight, years

VALMET 634 DSR (E) six-cylinder diesel. The manufacturer claimed 157.8 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.

Engine power, claimed · gross or net not stated

157.8 hp

117.7 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Valmet Mega-8550 HiTech”, 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
11,244 lb
3-point lift
15,212 lb
Hyd. flow
19.4 gpm
Top speed
24.9–31.1 mph

VALMET 8550 HiTech specs: key facts

  • The VALMET 8550 HiTech was built from 1998 to 2003.

  • The VALMET 8550 HiTech has a claimed engine power (gross or net not stated) of 117.7 kW (157.8 hp); it has no measured PTO figure.

  • The VALMET 8550 HiTech is four-wheel drive (4WD).

  • The VALMET 8550 HiTech has a VALMET 634 DSR (E) engine, a 6-cylinder 7.37 L diesel unit.Source 1

  • The VALMET 8550 HiTech weighs 5,100 kg (11,244 lb) unladen.

  • The VALMET 8550 HiTech has an independent rear PTO running at 540/1000 rpm.

  • The three-point hitch of the VALMET 8550 HiTech lifts 6,900 kg (15,212 lb) at the lower-link ends.

  • The hydraulic pump of the VALMET 8550 HiTech delivers 73.6 L/min (19.4 gpm).

Source · Traktorenlexikon, “Valmet Mega-8550 HiTech”

How does the 8550 HiTech compare with its class?

  • Strength:

    36 forward gears is high for its class — 100% above the median of 18 across the 169 machines within 10% of its power that hold this figure.

  • Limitation:

    A 165 L fuel tank is low for its class — 39% below the median of 270 L across the 180 machines within 10% of its power that hold this figure.

  • Worth knowing:

    An unladen mass of 5,100 kg is low for its class — 20% below the median of 6,398 kg across the 184 machines within 10% of its power that hold this figure.

Derived by WhichTractor from 184 comparable records. How we work this out

Illustration of the 1998–2003 VALMET 8550 HiTech, a 158 hp farm tractor, a drawing generated from its specification record
Illustration — not a photograph

How much horsepower does an 8550 HiTech have?

The only figure for the 8550 HiTech is 157.8 hp (117.7 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)
157.8 hp

Source · Traktorenlexikon, “Valmet Mega-8550 HiTech”

What engine is in an 8550 HiTech?

An 8550 HiTech has a VALMET 634 DSR (E), a 6-cylinder 7.37 L diesel engine.

Engine — 8550 HiTech engine specifications
Make & modelVALMET 634 DSR (E)Source 1
Cylinders6, liquid-cooledSource 1
Displacement449.4 ci · 7.37 LSource 1
Max torque479 lb·ft · 650 N·m @ 1,400 rpm
InjectionDirect injection
Electrical system12 V

Source · Traktorenlexikon, “Valmet Mega-8550 HiTech”

How much will an 8550 HiTech lift, and what is its hydraulic flow?

An 8550 HiTech lifts 15,212 lb (6,900 kg) at the lower-link ends of its Category 3 three-point hitch.

Hydraulics & PTO — 8550 HiTech hydraulics and PTO specifications
Pump flow19.4 gpm · 73.6 L/min
Pressure3,046 psi · 210 bar
Hitch categoryCategory 3
Lift at ends15,212 lb · 6,900 kg
Rear PTOIndependent, engine-driven, 540/1000 rpm @ 1,874 engine rpmEngages under load
PTO shaft1 3/8"- 6 splines and 1 3/8"- 21 part

Source · Traktorenlexikon, “Valmet Mega-8550 HiTech”

What transmission does an 8550 HiTech have?

Transmission specifications for the 8550 HiTech are below.

Transmission — 8550 HiTech transmission specifications
ClutchPedal-operated dry Fichtel & Sachs single-disc clutch
BrakesPedal-operated wet Valmet multi-disc brake acting on differential side shafts
Top speed24.9–31.1 mph · 40–50 km/hthe article lists alternatives

Source · Traktorenlexikon, “Valmet Mega-8550 HiTech”

How much does an 8550 HiTech weigh?

An 8550 HiTech weighs 11,244 lb (5,100 kg) unladen.

Weights & dimensions — 8550 HiTech weights and dimensions
Unladen weight11,244 lb · 5,100 kg
Maximum permissible mass18,739 lb · 8,500 kg
Wheelbase108.2 in · 2,748 mm2,558
Length194.4 in · 4,937 mm
Width85.7–105.8 in · 2,178–2,688 mm
Height109.6 in · 2,785 mm
Ground clearance20.5 in · 520 mm
Front track60.6–80.1 in · 1,540–2,035 mm
Rear track63.4–83.3 in · 1,610–2,115 mm

Source · Traktorenlexikon, “Valmet Mega-8550 HiTech”

What oil does an 8550 HiTech take, and how much?

An 8550 HiTech engine takes 20.1 qt (19.0 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.

8550 HiTech fluid capacities, grades and service intervals
SystemCapacity
Engine oil20.1 qt · 19.0 LSource: Traktorenlexikon, “Valmet Mega-8550 HiTech” · single source, not independently verified
Transmission & hydraulic45.4 qt · 43.0 LSource: Traktorenlexikon, “Valmet Mega-8550 HiTech” · single source, not independently verified
Cooling system35.9 qt · 34.0 LSource: Traktorenlexikon, “Valmet Mega-8550 HiTech” · single source, not independently verified

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

Which tractors compare with an 8550 HiTech?

Within 10% of its 157.8 hp of claimed engine power, the same type, and first built within 15 years of it.

Common questions about the VALMET 8550 HiTech

Is an 8550 HiTech two-wheel drive or four-wheel drive?

The VALMET 8550 HiTech is four-wheel drive (4WD).

What PTO does an 8550 HiTech have?

An 8550 HiTech has a independent 540/1000 rpm rear PTO on a 1 3/8"- 6 splines and 1 3/8"- 21 part shaft.

Sources and how this page was built

Compiled from Traktorenlexikon, “Valmet Mega-8550”; and Traktorenlexikon, “Valmet Mega-8550 HiTech”.

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: Valmet Mega-8550 — CC BY-SA 4.0, WIKIBOOKS-TL-116511 · revision 1000202. Wikibooks contributors (Traktorenlexikon). Original document
  2. Traktorenlexikon: Valmet Mega-8550 HiTech — CC BY-SA 4.0, WIKIBOOKS-TL-116520 · revision 1008504. Wikibooks contributors (Traktorenlexikon). Original document