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Valmet 8550 Specs ( 1995-2002 )

Name: Valmet 8550
Brand: Valmet

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Nebraska Test #1633

VALMET 8550 DIESEL

Max Drawbar HP 125.8 hp

Max Pull 10,565 lbs

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Overview

The Valmet 8550 is a row-crop farm tractor manufactured in Suolahti, Finland, between 1995 and 2002. It is equipped with a 7.4L SisuDiesel 6-cylinder turbocharged engine and a four-wheel drive mechanical system with a standard cab.

Ideal Applications

Tested Power Performance: In official OCED testing, the engine produced a maximum of 145.0 hp at the PTO and achieved a maximum drawbar pull of 10,565 lbs.

Transmission Configuration: The HiTech transmission system features 36 forward and reverse gears configured with four gears in three ranges, a three-speed power shift, and a power shuttle.

Hitch and Lift Capacity: The rear Type III hitch is rated for a maximum lift of 15,432 lbs, supported by a hydraulic pump flow of 19.3 gpm at 2,756 psi.

Production

Description	Row-Crop tractor / Built in Suolahti, Finland
Manufacturer	Valmet

Engine

Engine type	SisuDiesel 7.4L 6-cyl diesel
Fuel tank	43.6 gal (165.0 L)
Bore/Stroke	4.25x5.28 inches (108 x 134 mm)
Description	SisuDiesel 634 DSRE / turbocharged diesel / 6-cylinder / liquid-cooled
Displacement	449.6 ci (7.4 L)
Power	158.2 hp (118.0 kW)
Rated RPM	2200
Starter	electric
Starter volts	12
Torque	479.4 lb-ft (650.1 Nm)
Torque RPM	1400
Drawbar (tested)	125.8 hp (93.8 kW)
PTO (tested)	145.0 hp (108.1 kW)

Transmission

Description	Four gears in three ranges with three-speed power shift and power shuttle.
Gears	36 forward and reverse
Transmission	HiTech
Transmission type	36-speed three-speed power shift
Type	three-speed power shift

Mechanical

Cab	Cab standard.
Description	Power steering / Hydraulic wet disc brakes
Drive type	Four-wheel drive

Hydraulics

Pressure	2756 psi (190.0 bar)
Pump flow	19.3 gpm (73.1 lpm)

Hitch

Rear lift	15432 lbs (6999 kg)
Rear Type	III

PTO

Engine RPM	540@1874
Rear PTO	independent
Rear PTO Type	540/1000

Electrical

Battery volts	12
Charging system	alternator
Ground	negative

Dimensions & Tires

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

OCED Tractor Test 1633

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

References

Description	Modell-programmet 2000 published by Valtra / HiTech published in 1999, by Valtra / TwinTrac published in 2001, by Valtra

Speeds

Description	With 20.8R38 rear tires.

Nebraska Tractor Test Results

Test #1633

Download PDF

Test Date: May- July, 1996

Location: Vakola Institute of Agricultural Engineering, Vakolantie 55, Finland

This section is compiled from original Nebraska Tractor Test PDFs using AI-assisted extraction and human review. For full verification, download the source PDF above. Differences between reports, incomplete source data, and occasional extraction or data entry mistakes can occur.

PTO Drawbar Hydraulics Technical Sound Tires & Weight

Maximum Power & Fuel Consumption

Rated Engine Speed

141.60 hp

N/A lb/hp·hr

Standard PTO Speed

145.00 hp

@ 1000 rpm PTO

Torque Statistics

Maximum Torque	458 lb-ft (621 Nm)
Torque Rise	0.355%

PTO Power Curve

Maximum Power & Fuel Consumption Details

Condition	HP	kW	RPM	PTO RPM	Fuel gal/hr	Fuel L/hr
Rated Engine Speed	141.60	105.60	2200	1059	8.66	32.80
Standard PTO Speed (1000 rpm)	145.00	108.10	2077	1000	8.45	32.00

Varying Power & Fuel Consumption

Click column headers to sort

Power	RPM	gal/hr	lb/hp·hr	hp·hr/gal	DEF gal/hr
141.60	2200	8.66	0.43	16.34	N/A
125.20	2289	8.18	0.46	15.31	N/A
95.40	2325	6.92	0.51	13.81	N/A
64.50	2354	5.62	0.61	11.47	N/A
32.50	2383	4.26	0.92	7.63	N/A
N/A	2406	2.83	N/A	N/A	N/A

Fuel Consumption Characteristics (Unballasted) Front Drive Engaged

Click column headers to sort

Power	kW	Pull (lbs)	Pull (kN)	Speed	RPM	Slip	hp·hr/gal	kW·hr/L	Air °F	Air °C	Cool °F	Cool °C	Barometer Inch Hg	Barometer Kpa	Condition	Fuel Consumption Kg Kw Hr	Fuel Consumption Lb Hp Hr	Speed Km H
125.80	93.80	6,480	28.80	7.28	2062	6.40	14.62	2.88	57	14	178	81	29.30	99.20	Maximum Power - 27th (2 H I) Gear	0.29	0.48	11.70
106.70	79.60	4,850	21.60	8.25	2295	4.60	12.73	2.51	66	19	178	86	29.30	99.20	75% of Pull at Maximum Power - 27th (2 H I) Gear	0.33	0.55	13.30
74.80	55.80	3,280	14.60	8.55	2348	3.30	11.09	2.19	66	19	187	86	29.30	99.20	50% of Pull at Maximum Power - 27th (2 H I) Gear	0.38	0.63	13.80
105.90	79.00	4,810	21.40	8.26	2114	4.10	13.10	2.58	64	18	185	85	29.30	99.20	75% of Pull at Reduced Engine Speed - 28th (1 H III) Gear	0.32	0.53	13.30
74.80	55.80	3,285	14.60	8.54	2175	3.50	11.88	2.34	68	20	185	85	29.30	99.20	50% of Pull at Reduced Engine Speed - 28th (1 H III) Gear	0.36	0.59	13.70

Maximum Power In Selected Gears (Unballasted) Front Drive Engaged

Click column headers to sort

Gear	Power	Pull (lbs)	Speed	Slip	hp·hr/gal	lb/hp·hr	Engine RPM
19th (2MIII)	102.30	10,565	3.63	14.90	12.16	0.57	2294
20th (3MII)	112.40	10,475	4.02	14.50	13.12	0.53	2245
21st (4MI)	117.50	10,230	4.31	13.60	13.73	0.51	2077
22nd (3MIII)	119.10	9,465	4.72	12.00	13.96	0.50	2052
23rd (1HI)	122.80	9,640	4.78	12.10	14.37	0.49	2051
24th (4MII)	122.60	8,275	5.56	9.00	14.34	0.49	2058
25th (1HII)	125.00	7,655	6.12	8.80	14.62	0.48	2056
26th (4MIII)	122.70	6,520	7.08	6.90	14.37	0.49	2055
27th (2HI)	125.80	6,480	7.28	6.40	14.72	0.47	2062
28th (1HIII)	124.40	5,935	7.86	6.10	14.57	0.48	2058
29th (2HII)	123.60	5,015	9.25	4.70	14.47	0.48	2090
30th (3HI)	124.20	4,475	10.41	4.60	14.52	0.48	2059
31st (2HIII)	121.60	3,910	11.66	3.50	14.24	0.49	2087

Engine

Make	Valmet Diesel
Type	six cylinder vertical with turbocharger
Displacement	449 cu in (7365 ml)
Compression Ratio	16.5 to 1
Rated Engine Speed	2200 rpm
Air Cleaner	two paper elements
Exhaust	vertical
Crankshaft	lengthwise

Chassis

Type	front wheel assist
Steering	hydrostatic
Transmission	selective gear fixed ratio with partial (3) range operator controlled powershift
Speeds	36 forward (24.91 mph max)
Front Tread Width	57.1 to 84.6 in
Rear Tread Width	63.4 to 83.5 in
Brakes	multiple wet disc hydraulically operated by two foot pedals which can be locked together
Hydraulic Control	direct engine drive

Consumables

Fuel	No. 2 Diesel
DEF Fluid	N/A

Sound Levels

Bystander	84.00 dB(A)
Maximum Sound Level Disengaged	81.50 dB(A)
Maximum Sound Level Engaged	81.50 dB(A)

Tires & Tracks

Rear Tires	Two 20.8R38; **; 19 psi (130 kPa)
Front Tires	Two 16.9R28; **; 19 psi (130 kPa)
Height of Drawbar	20.10 in (590 mm)
Ballast	Tested without ballast

Static Weight

Rear	6,405 lbs
Front	5,005 lbs
Total	11,410 lbs

Valmet 8550 Specs ( 1995-2002 )

Overview

Ideal Applications

Production

Engine

Transmission

Mechanical

Hydraulics

Hitch

PTO

Electrical

Dimensions & Tires

OCED Tractor Test 1633

References

Speeds

Nebraska Tractor Test Results

PTO Performance

Maximum Power & Fuel Consumption

Torque Statistics

PTO Power Curve

Maximum Power & Fuel Consumption Details

Varying Power & Fuel Consumption

Drawbar Performance

Fuel Consumption Characteristics (Unballasted) Front Drive Engaged

Maximum Power In Selected Gears (Unballasted) Front Drive Engaged

Hydraulic Performance

Lift Capacity

Technical Specifications

Engine

Chassis

Consumables

Sound Levels

Sound Levels

Tires & Weight

Tires & Tracks

Static Weight

Test Remarks