Products

YC6MK

  • Power range: 300-420 hp
  • Applications: Large road buses, sightseeing buses and BRT buses above 12m
  • Product slogan: classic engine for heavy trucks and flagship engine for large buses

Product Parameters

ADVANTAGES

Product Feature

1. Leading technology

YC6MK engine is a medium- and heavy-duty diesel engine with a displacement of 10L. It is designed and developed in strict accordance with FEV's mechanical development programs, with reference to the advanced diesel engine concepts of AVL, Ricardo and other international professional organizations.

2. Wide application

The 6MK engine platform has been applied to the development of vehicle engines, engines for engineering machinery, G-drive engines and marine engines. After years of test, development and application, the engine has had quite mature and perfect systems, and has subject to rigorous and extensive reliability tests and verifications.

3. Reliability and durability

High-strength water-cooled cylinder block, and integral four-valve cylinder head

Reliability development in strict accordance with FEV's mechanical development programs; passed the road adaptability test of about 3 million km (including high-temperature test, alpine-cold test and plateau test) and the rigorous reliability bench test of about 30,000 hours

Use of BOCSH high pressure common rail system, Kamax bolts, Federal-Mogul cylinder gaskets, ZYNP cylinder liners, and parts of other professional suppliers

4. High efficiency and economy

Application of a four-valve structure and Yuchai's patented combustion technology, achieving a minimum fuel consumption of 190 g/kW·h

Supporting high-efficiency turbocharger, fine calibration based on market segment and applications, better economy and power performance

Use of an intelligent fuel-saving switch: The position switch is adjusted according to the real-time load, allowing the vehicle to operate in the economical range all the time, thus reducing the fuel consumption by at least 10%

Power coverage: 300 ps ~ 420 ps; torque coverage: 1,500 N·m ~ 2,000 N·m; high gradeability under heavy load condition

5. Safety and comfort

Maximum speed control, limp home, torque output control, fault indicator lamps, low oil pressure protection, and thermal protection and control

Application of pilot injection control, intelligent idle speed control and other electronic control technologies, effectively reducing engine vibration and noise

Application of the special in-cylinder brake system with a low braking speed jointly developed by Yuchai and JACOBS, achieving higher braking efficiency than similar products

Product Parameters

 

Product Series

Model Series

Displacement (L)

Bore × Stroke

Number of Valves per Cylinder

Emissions

Power
(kw/rpm)

Torque
(N.m/rpm)

Fuel System

Exhaust Aftertreatment

Dry Weight (kg)

Oil Change Cycle

B10 Service Life (10,000 km)

YC6MK-30

YC6MK300-30

10.338

123X145

4

Euro III

221/1900

1400/1100~1500

BOSCH high pressure common rail system

No

972

20,000 (standard)

80

YC6MK340-30

250/1900

1550/1100~1500

YC6MK380-30

276/1900

1650/1100~1500

YC6MK400-30

294/1900

1800/1100~1500

YC6MK-33

YC6MK300-33

Euro II

221/1900

1400/1100~1500

In-line mechanical pump

No

YC6MK340-33

250/1900

1550/1100~1500

YC6MK375-33

276/1900

1650/1100~1500

YC6MK400-33

294/1900

1800/1100~1500

YC6MK-50

YC6MK300-50

Euro Ⅴ

221/1900

1400/1100~1500

BOSCH high pressure common rail system

SCR

YC6MK320-50

235/1900

1500/1100~1500

YC6MK350-50

258/1900

1600/1100~1500

YC6MK385-50

285/1900

1800/1100~1500

YC6MK400-50

294/1900

1900/1100~1500

YC6MK420-50

309/1900

2000/1100~1500

 

ADVANTAGES

Product Feature

STRONG POWER

Large displacement, high gradeability and high efficiency

FUEL ECONOMY

Bosch high pressure common rail (HPCR) fuel injection system with the injection pressure up to 1,600 bar, achieving multiple injections and accurate control

RELIABILITY

High-strength alloy cast iron cylinder head
General engine block + independent crankcase
Long B10 service life design, which can be more than 500,000 km

COMFORT

Reduction soft meshing starter, ensuring smooth start
A framed engine body structure, ensuring good rigidity and small vibration Damping gear

Product Parameters

1. Leading technology

YC6MK engine is a medium- and heavy-duty diesel engine with a displacement of 10L. It is designed and developed in strict accordance with FEV's mechanical development programs, with reference to the advanced diesel engine concepts of AVL, Ricardo and other international professional organizations.

2. Wide application

The 6MK engine platform has been applied to the development of vehicle engines, engines for engineering machinery, G-drive engines and marine engines. After years of test, development and application, the engine has had quite mature and perfect systems, and has subject to rigorous and extensive reliability tests and verifications.

3. Reliability and durability

High-strength water-cooled cylinder block, and integral four-valve cylinder head

Reliability development in strict accordance with FEV's mechanical development programs; passed the road adaptability test of about 3 million km (including high-temperature test, alpine-cold test and plateau test) and the rigorous reliability bench test of about 30,000 hours

Use of BOCSH high pressure common rail system, Kamax bolts, Federal-Mogul cylinder gaskets, ZYNP cylinder liners, and parts of other professional suppliers

4. High efficiency and economy

Application of a four-valve structure and Yuchai's patented combustion technology, achieving a minimum fuel consumption of 190 g/kW·h

Supporting high-efficiency turbocharger, fine calibration based on market segment and applications, better economy and power performance

Use of an intelligent fuel-saving switch: The position switch is adjusted according to the real-time load, allowing the vehicle to operate in the economical range all the time, thus reducing the fuel consumption by at least 10%

Power coverage: 300 ps ~ 420 ps; torque coverage: 1,500 N·m ~ 2,000 N·m; high gradeability under heavy load condition

5. Safety and comfort

Maximum speed control, limp home, torque output control, fault indicator lamps, low oil pressure protection, and thermal protection and control

Application of pilot injection control, intelligent idle speed control and other electronic control technologies, effectively reducing engine vibration and noise

Application of the special in-cylinder brake system with a low braking speed jointly developed by Yuchai and JACOBS, achieving higher braking efficiency than similar products

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