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Engines for Construction Machinery

YC4A SERIES DIESEL

Features & Benefits

● Strong power, big torque output, quicker response.
● Highly fuel efficient.
● Highly reliable and durable.
● Lower fuel & oil consumption, lower noise and emission.
● Longer service life.
● Parts and components are highly interchangeable and ease of maintenance; spare parts are of ample supply.
● Emission can be upgraded to T3 and beyond.


Techincal Specifications

Engine Model YC4A80-T20 YC4A85-T20 YC4A90-T20 YC4A90-T22
Configuration Vertical, in-line, 4 stroke,water-cooled,direct injection
Number of Cylinders× Bore × Stroke 4-108×132
Displacement (L) 4.84
Compression ratio 17.5:1
Aspiration Naturally aspirated
Fuel System Mechanical pump
Rated Power /Speed (kW/r/min) 57/2200 62/2200 66/2200 66/2300
Torque/Speed (N.m/r/min) 300/1550±100 320/1550±100 330/1550±100 320/1550±100
Min. fuel consumption with full load (g/kW.h) ≤205
Speed governing rate % 8~12
Emission Tier2
Application 70hp tractor 75hp tractor,  combine harvester 80hp tractor,  combine harvester, 7.22 inch sand pump 80hp tractor,  harvester, 20~25 excavator, 7/8m³air compressor


Engine Model YC4A105Z-T20 YC4A110Z-T20 YC4A115Z-T20 YC4A125Z-T20 YC4A125Z-T21
Configuration Vertical, in-line, 4 stroke,  water-cooled, direct injection
Number of Cylinders× Bore × Stroke 4-108×132
Displacement (L) 4.84
Compression ratio 17.5:1
Aspiration Turbocharging, inter-cooled
Fuel System Mechanical pump
Rated Power /Speed (kW/r/min) 75/2200 81/2300 85/2200 92/2300 92/2200
Torque/Speed (N.m/r/min) 400/1500~1700 390/1540~1740 420/1550±100 450/1550±100 460/1450~1650
Min. fuel consumption with full load (g/kW.h) ≤205
Speed governing rate % 8~12
Emission Tier2
Application Combine  harvester, excavator, drilling machine, loader, road roller 100hp tractor Harvester, air  compressor, 13.5t excavator, 5~7t forklift truck, paver, concrete pump Harvester, air  compressor, sprayer, excavator,  rubber-tyred roller Harvester, air compressor,  drilling machine, road roller, paver, excavator, 7.87 inch sand pump
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