Valmet 665 Tractor

Manufacturer Valmet
Price -
Model 665
Equipment Type Utility Tractors
Factory

VALMET 665 POWER

Engine 80hp / 59.7kW

ENGINE DETAIL

The Valmet 665 tractor is equipped with a robust 4-cylinder Valmet 420 DS diesel engine, delivering 80hp (59.7kW) at a rated RPM of 2350, which is beneficial for applications requiring consistent power. Its displacement of 4.4L and a favorable compression ratio of 16.5:1 improve thermal efficiency and torque output, making it suitable for heavy-duty farming tasks. However, the relatively high RPM may lead to increased wear in prolonged operations; thus, careful monitoring of engine parameters during extended use is advisable.

Description Valmet 420 DS diesel 4-cylinder liquid-cooled
Displacement 268.5ci / 4.4L
Bore/Stroke 4.252x4.724inches / 108x 120mm
Power 80hp / 59.7kW
Compression 16.5:1
Rated RPM 2350
Starter volts 12

VALMET 665 ENGINE

The Valmet 665 features a robust 4.4L 4-cylinder diesel engine, delivering reliable power and efficiency suitable for various agricultural tasks. With a fuel tank capacity of 19.3 gallons (73.1 liters), it offers extended operating time for sustained fieldwork, reducing the frequency of refueling. However, users should consider its fuel consumption rates for optimal performance planning, particularly in heavy-duty applications.

Description Valmet 4.4L 4-cyl diesel
Fuel tank 19.3gal / 73.1L

TRANSMISSIONS OVERVIEW

The Valmet 665 tractor features an 8-speed transmission with an optional 12-speed creeper gearbox, enabling precise speed control for tasks requiring meticulous maneuvering, such as tilling or planting. The creeper gearbox is advantageous for low-speed operations, enhancing torque delivery while maintaining engine efficiency; however, the complexity of the system may lead to higher maintenance requirements. Ideal for applications in narrow-row cropping or high-precision horticulture, the tractor's configuration maximizes both productivity and operator control.

Description 8-speed 12-speed creeper

TRANSMISSION 1

The Valmet 665 tractor features a total of 12 gears, providing flexibility with 8 forward gears and 4 reverse gears, allowing for better adaptability in varied terrains and tasks. Its dual-range transmission (low/high) enhances torque efficiency at lower speeds, making it advantageous for tasks requiring precision, such as plowing or tilling. However, the limited number of gears may pose challenges in very steep gradients or when rapidly changing speeds.

Gears 8 forward and 4 reverse
Description Four gears (1-4) in two ranges (low/high) plus reverse range

SPEEDS 1

Description With 16.9R30 rear tires

TRANSMISSION 2

The Valmet 665 tractor, equipped with a creeper transmission, enhances versatility with its additional four speeds for both forward and reverse, resulting in a total of 12 forward and 8 reverse gears. This is particularly advantageous for precise operations such as plowing or planting in tight spaces where lower speeds are beneficial. However, the complexity of the creeper system may increase maintenance requirements and operator training.

Type creeper
Gears 12 forward and 8 reverse
Description Creeper option adds an additional four speeds forward and reverse

SPEEDS 2

Description With 16.9R30 rear tires

MECHANICAL

The Valmet 665 offers a versatile chassis configuration with the option for both 2WD and 4WD, allowing adaptability for various terrain conditions. Its power steering enhances maneuverability, while the wet disc brakes provide reliable stopping power under heavy loads. The availability of 8-speed and 12-speed creeper transmissions enables precise control in low-speed operations, beneficial for tasks requiring high torque, such as plowing and tilling.

Chassis 4x2 2WD/4x4 MFWD 4WD
Steering power
Brakes wet disc
Transmissions 8-speed 12-speed creeper

HYDRAULICS

Pump flow 10.3gpm / 39.0lpm

TRACTOR HITCH

Rear lift 5,512lbs / 2500kg

POWER TAKE-OFF (PTO)

Rear RPM 540/750

VALMET 665 TIRES

The Valmet 665 tractor, available in both 2WD and 4WD configurations, showcases versatility in tire sizes, optimizing traction for various agricultural applications. The 2WD version emphasizes cost-effectiveness and simplicity, potentially limiting performance on uneven terrain, while the 4WD configuration provides enhanced stability and power distribution, making it more suitable for challenging field conditions. Operator considerations should include the intended use; for example, 4WD is preferable in muddy or hilly landscapes for improved maneuverability and reduced slippage.

2WD Standard tires (ag) Front: 10.00-16. Rear: 16.9R30
4WD Standard tires (ag) Front: 12.4R24. Rear: 19.6R34

DIMENSIONS

2WD Wheelbase 88.4inches / 224cm
4WD Wheelbase 94inches / 238cm
2WD Length 151.2inches / 384cm
4WD Length 157.5inches / 400cm
2WD Width 76.7inches / 194cm
4WD Width 79.9inches / 202cm
2WD Weight 6900lbs / 3129kg
4WD Weight 7231lbs / 3279kg
2WD Clearance (front axle) 19.9inches / 50cm
4WD Clearance (front axle) 17.1inches / 43cm

VALMET 665 HEIGHT

2WD Cab 99inches / 251cm
4WD Cab 100.4inches / 255cm
2WD Exhaust 103.5inches / 262cm
4WD Exhaust 100.6inches / 255cm

DIMENSIONS & TIRES

The Valmet 665 tractor's 2WD configuration, with an 88.4-inch wheelbase, offers enhanced maneuverability for tighter spaces but may compromise traction on uneven terrain. In contrast, the 4WD variant, with a 94-inch wheelbase, provides improved stability and traction, making it suitable for heavy-duty applications like plowing or pulling in adverse conditions. The choice between tire sizes (10.00-16 front and 16.9R30 rear for 2WD) affects load distribution and soil compaction; larger tires can improve flotation but may also increase soil disturbance, affecting crop growth.

2WD Wheelbase 88.4inches / 224cm
4WD Wheelbase 94inches / 238cm
Weight 6900 to 7231 pounds
Front tire 10.00-16
2WD Rear tire 16.9R30

ELECTRICAL

Ground negative
Charging system alternator
Charging amps 45
Battery volts 12


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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