CY4102BZQ Series
1. Performance
CY4102BZQ series are turbocharged diesel engines which are designed and manufactured by making improvements on CY4102BQ series natural aspirated diesel engines.
To ensure high performance and long service life of our CY4102BZQ series turbocharged engines, we employ exhaust turbocharging technology and make improvements on engine's intake and exhaust system, fuel supply system, combustion system, cooling system and lubrication system.
Preheating system is also designed and installed inside the cylinder, so as to improve the cold start performance of our diesel vehicle engines.
2. Emission standard
CY4102BZQ series are Euro II engines.
3. Parts and components
The parts and components of CY4102BZQ series diesel engines are mostly interchangeable with that of CY4102BQ naturally aspirated engines. Both series of engines are provided with easy access to spare parts and feature easy maintenance.
4. Application
CY4102BZQ series diesel engines are applicable for 2-3 ton trucks, high-grade intercity buses, luxury tourist buses, and so on. Through modification, they can also be used for many other machines and equipment.

CY4102BZLQ Series
1. Performance
CY4102BZLQ series turbocharged intercooled diesel engines are Euro II engines designed and developed based on CY4102BZQ series.
We design and manufacture CY4102BZLQ series of diesel engine by using air to air intercooling technology and we also upgrade the engine's intake and exhaust system, fuel supply system, combustion system, cooling system and lubricating system, etc.
Engine bench test, reliability test, and users' feedback have proved that our CY4102BZLQ series vehicle engines have rational structure, high performance and high reliability. Meanwhile, the cylinder block, crankshaft and piston as well some other key components are made with new structures and new technologies, which greatly enhance the strength and rigidity of our diesel engines.
2. Emission standard
CY4102BZLQ series are Euro II engines.

Technical Parameters of Diesel Engine CY4102 Series

Model	4102BQ	4102BZQ	4102BZLQ
Type	Inline, water cooled, 4-stroke, vertical diesel engines
Cylinder No.-Bore×Stroke	4-102χ118	4-102χ118	4-102χ118
Displacement (L)	3.856	3.856	3.856
Firing order	1-3-4-2	1-3-4-2	1-3-4-2
Intake mode	Naturally aspirated	Turbocharged	Turbocharged intercooled
Rated power (Kw)	70.6	88	88
Speed at rated power (rpm)	3200	2800	2800
Max. torque (N.m)	245	343	392
Speed at max. torque (rpm)	2200	1400-1800	1600-1800
Compression ratio	17.5:1	16.5:1	17:1
Idling speed (rpm)	≤650	≤650	≤650
Max. idling speed (rpm)	≤3520	≤3220	≤3220
Exhaust temperature	≤680℃	≤650℃	≤700℃
Min. specific fuel consumption at full load (g/Kw·h)	238	225	225
Combustion	Direct injection

Our company is a professional diesel engine manufacturer and supplier based in China, with vast production and marketing experience. Till now, we have successfully exported our products to Russia, Egypt, Columbia and Vietnam and more. Our products fall into 6 cylinder and 4 cylinder diesel engines and CNG engines. They are commonly used for public buses, engineering machinery, SUV, pickup trucks and other light duty trucks, as well.
We welcome worldwide customers to choose our products.