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Valmet 8550

The Valmet 8550 is a tractor produced by Valmet. It is equipped with a 449.6 ci 7.4 L engine. The listed engine power is Diesel (listed): 158.2 hp / 118.0 kW. Transmission: HiTech. Operating weight: 11460 lbs 5198 kg.

Engine Power
Diesel (listed): 158.2 hp / 118.0 kW
Fuel & Capacities
43.6 gal 165.0 L
Transmission
HiTech
Operating Weight
11460 lbs 5198 kg

Overview

Valmet 8550 tractor photo
1995 - 2002 HiTech 8050 SeriesRow-Crop tractor HiTech 8050 Series Row-Crop tractor
Production
Manufacturer
Valmet
Row-Crop tractor
Built in Suolahti, Finland
Valmet 8550 Engine
SisuDiesel 7.4L 6-cyl diesel
Fuel tank
43.6 gal 165.0 L
Engine details ...
Valmet 8550 Transmission
36-speed three-speed power shift
Transmission details ...
Valmet 8550 Power
Engine
158.2 hp 118.0 kW
Drawbar (tested)
125.8 hp 93.8 kW
PTO (tested)
145.0 hp 108.1 kW
Performance test details ...
Mechanical
Four-wheel drive
Power steering
Hydraulic wet disc brakes
Cab standard.
Hydraulics
Pressure
2756 psi 190.0 bar
Pump flow
19.3 gpm 73.1 lpm
Tractor hitch
Rear Type
III
Rear lift
15432 lbs 6999 kg
Power Take-off (PTO)
Rear PTO
independent
Rear PTO Type
540/1000
540/540E OptOptional
1000 OptOptional
Engine RPM
540@1874
1000@2080
540E@1539
Dimensions & Tires
Wheelbase
100.7 inches 255 cm
Weight
11460 lbs 5198 kg
Front tire
16.8R28
Rear tire
20.8R38
Full dimensions and tires ...
Electrical
Ground
negative
Charging system
alternator
Battery volts
12
References
8550 references literature
Modell-programmet 2000 published by Valtra
HiTech published in 1999, by Valtra
TwinTrac published in 2001, by Valtra

Engine

Engine Detail — 449.6 ci / 7.4 L Diesel

Manufacturer
SisuDiesel 634 DSRE
Configuration
turbocharged diesel, 6-cylinder, liquid-cooled
Displacement
449.6 ci 7.4 L
Bore/Stroke
4.25x5.28 inches 108 x 134 mm
Power
158.2 hp 118.0 kW
Rated RPM
2200
Torque
479.4 lb-ft 650.1 Nm
Torque RPM
1400
Starter
electric
Starter volts
12

Transmission

Transmission — HiTech

Transmission
HiTech
Type
three-speed power shift
Gears
36 forward and reverse
Four gears in three ranges with three-speed power shift and power shuttle.
With 20.8R38 rear tires.
8550 HiTech three-speed power shift speeds

Dimensions

Valmet 8550 Tires
Ag front
16.8R28
Ag rear
20.8R38
Dimensions
Wheelbase
100.7 inches 255 cm
Length
194.5 inches 494 cm
Width
88.2 inches 224 cm
Height (cab)
111.4 inches 282 cm
Height (exhaust)
111.8 inches 283 cm
Weight
11460 lbs 5198 kg
Clearance (front axle)
21.9 inches 55 cm
Clearance (rear axle)
21.1 inches 53 cm

Tests

OCED Tractor Test 1633
Diesel HiTech 4WD May 1996 - July 1996, Link: OCED Tractor Test 1633 file
PTO performance
Max power
145.0 hp 108.1 kW
Fuel use
8.4 gal/hour 31.8 l/hour
Power at rated engine speed
141.6 hp 105.6 kW
Fuel use
8.7 gal/hour 32.9 l/hour
Power at rated PTO speed
145.0 hp 108.1 kW
Fuel use
8.4 gal/hour 31.8 l/hour
Drawbar performance
Max power
125.8 hp 93.8 kW
Fuel use
8.6 gal/hour 32.6 l/hour
Max pull
10565 lbs 4792 kg

Photos

Valtra 8550 towing bales.

Valtra 8550 towing bales.

Valtra 8550

Valtra 8550

Valtra 8550

Valtra 8550

Right-hand control console on the Valtra 8550.

Right-hand control console on the Valtra 8550.

Recommended Implements & Sizing Guide

Engineering recommendations for Valmet 8550 based on its 158.2 HP power envelope and ASAE agricultural standards.

Implement & OperationRecommended SizeWorkload RatingEngineering Notes
Moldboard PlowPrimary Tillage
5 to 7 Bottom (18")5 - 7 铧 (45 cm)Commercial / Field ScaleLarge acreage tillage; requires front ballast weights.
Rotary Cutter / MowerMowing & Clearing
15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼Commercial / Field ScaleLarge commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep
90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机Commercial / Field ScaleDeep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage
15 to 22 ft Folding Disc4.5 - 6.7 m 折叠式圆盘耙Commercial / Field ScaleWide commercial field leveling; requires hydraulic remotes.
Hay BalerHay & Forage
Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)Commercial / Field ScaleHigh-capacity commercial forage harvesting (1000 RPM PTO).
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Valmet 8550.

Estimated Continuous Field Runtime: 5.3 hrs

Approximately 5.3 hours of continuous field operation at ~75% rated power on a full tank (43.6 gal / 165 L).

Estimated 75% Load Fuel Burn~8.2 gal/hr (31.1 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours

Valmet 8550 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Valmet 8550.

Converted Equivalents:

Horsepower (HP)158.2 hp
Kilowatts (kW)118 kW
Metric Horsepower (PS / CV)160.4 PS

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