H Series Diesel Engine for Genset
H Series Diesel Engine for Genset4Z H Series Diesel Engine for Genset4ZT H Series Diesel Engine for Genset4ZTAA H Series Diesel Engine for Genset3ZT/3Z

Z Series Diesel Engine for Genset

Description

Developed in collaboration with renowned domestic and international combustion engine research institutes, including AVL from Austria and RICARDO from UK, Z series diesel engines are a result of our rich experience in diesel engine development, production, and quality management. They feature strong power and excellent performance, characterized by superior NVH (Noise, Vibration, and Harshness) performance, low thermal load, and good fuel efficiency. Since their launch, more than 300,000 units have been produced, making them the ideal choice for generator sets ranging from 10-81kW in various application fields.

Request a Quote
4Z
  • Z Series Diesel Engine for Genset
  • Z Series Diesel Engine for Genset
  • Z Series Diesel Engine for Genset
Model 4Z3.2 (G41-G42) 4Z2.9 (G41-G430)
Aspiration Natural aspiration Natural aspiration
Number of Cylinders×Bore×Stroke (mm) 4×98×105 4×93×105
Cylinder Liner Type Dry liner Dry liner
Compression Ratio 17.5 17.5
Displacement (L) 3.2 2.9
Fuel System High pressure common rail High pressure common rail/Electric control VP pump
Governing Type Electronic Electronic
Speed Governing Rate (%) 5 5
Rated Power (kW) 32-36.8 16-30
Rated Speed (rpm) 1500-1800 1500-1800
Standby Power (kW) 35-41 18-33
Fuel Consumption (g/kW.h) 220 230
Exhaust Smoke (FSN) ≤2.5 ≤2.5
Lube Oil Capacity (L) 6.5 6.5
Cooling System Capacity (L) 5.75 5.75
Engine Oil Consumption (g/kW.h) ≤0.6 ≤0.6
Noise (dB-A) < 98 < 96
Emission Standards STAGE IV STAGE IV
Net Weight (kg) 270 255
Dimensions (L×W×H) (mm) 660×555×712 660×555×700
Flywheel housing/ Flywheel SAE4#7.5 SAE4#7.5
4ZT
  • Z Series Diesel Engine for Genset
  • Z Series Diesel Engine for Genset
  • Z Series Diesel Engine for Genset
Electronic Frequency (Dual Frequency) 4ZTAA4.1
(G21-G22) 		4ZT3.5-4.1
(G21) 		4ZT3.2 (G21) 4Z3.2-G21 4Z3.0-G21 4Z2.7-G21 4Z2.3-G21
Mechanical Frequency (Single Frequency) / / 4ZT3.2-G11-G12 4Z3.2-G11-G12 4Z3.0-G11-G12 4Z2.7-G11-G12 4Z2.3-G11-G12
Aspiration Turbo & intercooler Turbo Turbo Natural aspiration Natural aspiration Natural aspiration Natural aspiration
Number of Cylinders×Bore×Stroke (mm) 4×105×118 4×105×118
4×98×115 		4×98×105 4×98×105 4×95×105 4×90×105 4×85×100
Cylinder Liner Type Dry liner Dry liner Dry liner Dry liner Dry liner Wet liner Wet liner
Compression Ratio 18.5 18.5 18.5 18.1 18.1 18.1 18
Displacement (L) 4.1 3.5-4.1 3.2 3.2 3 2.7 2.3
Fuel System BQ inline pump BQ inline pump BQ inline pump BQ inline pump BQ inline pump BQ inline pump BQ inline pump
Governing Type 1 Electronic Electronic Electronic Electronic Electronic Electronic Electronic
Speed Governing Rate (%) 5 5 5 5 5 5 5
Governing Type 2 Mechanical Mechanical Mechanical Mechanical Mechanical Mechanical Mechanical
Speed Governing Rate (%) / / 8 8 8 8 8
Rated Power (kW) 64-76 49-70 39-42 32-38 27-30 22-26 16-21
Rated Speed (rpm) 1500-1800 1500-1800 1500-1800 1500-1800 1500-1800 1500-1800 1500-1800
Max. Power (kW) 70-83 54-77 44-46 35-42 30-33 24-29 18-23
Fuel Consumption (g/kW.h) 215 215 225 225 235 230 240
Exhaust Smoke (FSN) ≤2.5 ≤2.5 ≤2.5 ≤2.5 ≤2.5 ≤2.5 ≤2.5
Lube Oil Capacity (L) 6.5 6.5 6.5 6.5 6.5 6.5 5.5
Cooling System Capacity (L) 8.54 6/8.54 5.75 5.75 5.75 5.3 4.65
Engine Oil Consumption (g/kW.h) ≤0.5 ≤0.6/0.5 ≤0.6 ≤0.6 ≤0.6 ≤0.6 ≤0.6
Noise (dB-A) ≤115 ≤112-114 ≤110 ≤104 ≤102 ≤98 ≤95
Emission Standards STAGE II STAGE II STAGE II STAGE II STAGE II STAGE II STAGE II
Net Weight (kg) 370 285-360 275 265 265 260 220
Dimensions (L×W×H) (mm) 815×661×770 750×610×765
815×645×820 		750×600×765 750×565×700 750×565×700 750×565×696 744×545×635
Flywheel housing/ Flywheel SAE3#11.5 SAE3#11.5 SAE3#11.5 SAE4#7.5 SAE4#7.5 SAE4#7.5 SAE4#7.5
4ZTAA
  • Z Series Diesel Engine for Genset
  • Z Series Diesel Engine for Genset
  • Z Series Diesel Engine for Genset
Model 4ZTAA3.5 (G31) 4ZTAA3.2 (G31-G34)
Aspiration Turbo & intercooler Turbo & intercooler
Number of Cylinders×Bore×Stroke (mm) 4×98×115 4×98×105
Cylinder Liner Type Dry liner Dry liner
Compression Ratio 17.5 17.5
Displacement (L) 3.5 3.2
Fuel System High pressure common rail High pressure common rail
Governing Type Electronic Electronic
Speed Governing Rate (%) 5 3
Rated Power (kW) 74 39-70
Rated Speed (rpm) 1500-1800 1500-1800
Standby Power (kW) 81 44-77
Fuel Consumption (g/kW.h) 215 215
Exhaust Smoke (FSN) ≤2.5 ≤2.5
Lube Oil Capacity (L) 6.5 6.5
Cooling System Capacity (L) 5.75 5.75
Engine Oil Consumption (g/kW.h) ≤0.5 ≤0.4
Noise (dB-A) < 108 < 106
Emission Standards STAGE III STAGE III
Net Weight (kg) 275 270
Dimensions (L×W×H) (mm) 660×648×712 660×638×712
Flywheel Housing/ Flywheel SAE3#11.5 SAE3#11.5
3ZT/3Z
  • Z Series Diesel Engine for Genset
  • Z Series Diesel Engine for Genset
  • Z Series Diesel Engine for Genset
Model 3ZT1.1 ( G41-G42) 3Z1.1 ( G41-G42)
Aspiration Turbo Natural aspiration
Number of Cylinders×Bore×Stroke (mm) 3×78×78.4 3×78×78.4
Cylinder Liner Type Dry liner Dry liner
Compression Ratio 18 18
Displacement (L) 1.1 1.1
Fuel System High pressure common rail High pressure common rail
Governing Type Electronic Electronic
Speed Governing Rate (%) 5 5
Rated Power (kW) 12.8-25 10-16.8
Rated Speed (rpm) 1500-3000 1500-3000
Standby Power (kW) 14.1-27 11-18.5
Fuel Consumption (g/kW.h) 255 255
Exhaust Smoke (FSN) ≤2.5 ≤2.5
Lube Oil Capacity (L) 4.5 4.5
Cooling System Capacity (L) 1.7 1.7
Engine Oil Consumption (g/kW.h) ≤0.4 ≤0.4
Noise (dB-A) ≤94-102 ≤92-100
Emission Standards STAGE IV STAGE IV
Net Weight (kg) 114 110
Dimensions (L×W×H) (mm) 530×390×590 530×390×590
Flywheel housing/ Flywheel SAE5#6.5 SAE5#6.5
  • Features a high-strength cylinder block and an integrated cylinder head design. The engine’s main components are sourced from top international brands, and have undergone over 2000 hours of cumulative reliability testing on various test benches to ensure the product is mature and reliable
  • Manufactured following the SAIC Group's standards, with quality assurance from the Volkswagen engine quality control system in Germany, resulting in high engine quality and consistency
  • The engine uses integrated and modular design techniques to improve product reliability, simplify the structure, and make maintenance easier
  • It can start normally at -5°C without any auxiliary devices. By adding air intake or cylinder preheating devices, it can start normally at -15°C, showing strong adaptability to different environments
  • This engine series complies with non-road National Stage II, III, and IV emission standards.
Typical generator capacity (kVA) Diesel Engine Model Engine output (kW) Type
50HZ 60HZ 1500rpm 1800rpm Cylinder Flywheel & Housing Fuel system Emission
Prime Standby Prime Standby Prime Standby Prime Standby
(PRP) (ESP) (PRP) (ESP)
15 17 20 23 4Z2.3-G21 16 18 21 23 L4 SAE4#7.5〞 e-gov. CN II
15 17 / / 4Z2.3-G11 16 18 / / L4 SAE4#7.5〞 m-FIP CN II
/ / 20 23 4Z2.3-G12 / / 21 23 L4 SAE4#7.5〞 m-FIP CN II
20 23 25 28 4Z2.7-G21 22 24 26 29 L4 SAE4#7.5〞 e-gov. CN II
20 23 / / 4Z2.7-G11 22 24 / / L4 SAE4#7.5〞 m-FIP CN II
/ / 25 28 4Z2.7-G12 / / 26 29 L4 SAE4#7.5〞 m-FIP CN II
25 28 30 33 4Z3.0-G21 27 30 30 33 L4 SAE4#7.5〞 e-gov. CN II
25 28 / / 4Z3.0-G11 27 30 / / L4 SAE4#7.5〞 m-FIP CN II
/ / 30 33 4Z3.0-G12 / / 30 33 L4 SAE4#7.5〞 m-FIP CN II
31 34 40 44 4Z3.2-G21 32 35 38 42 L4 SAE4#7.5〞 e-gov. CN II
31 34 / / 4Z3.2-G11 32 35 / / L4 SAE4#7.5〞 m-FIP CN II
/ / 40 44 4Z3.2-G12 / / 38 42 L4 SAE4#7.5〞 m-FIP CN II
40 44 44 48 4ZT3.2-G21 39 44 42 46 L4 SAE3#11.5〞 e-gov. CN II
40 44 / / 4ZT3.2-G11 39 44 / / L4 SAE3#11.5〞 m-FIP CN II
/ / 44 48 4ZT3.2-G12 / / 42 46 L4 SAE3#11.5〞 m-FIP CN II
50 55 63 69 4ZT3.5-G21 49 54 60 66 L4 SAE3#11.5〞 e-gov. CN II
63 69 75 83 4ZT4.1-G21 60 66 70 77 L4 SAE3#11.5〞 e-gov. CN II
69 75 80 88 4ZTAA4.1-G21 64 70 76 83 L4 SAE3#11.5〞 e-gov. CN II
75 83 81 89 4ZTAA4.1-G22 74 81 80 88 L4 SAE3#11.5〞 e-gov. CN II
16 18 / / 3Z1.1-G41 16.8（3000） 18.5（3000） / / L3 SAE5#6.5" ECU CN Ⅳ
25 28 / / 3ZT1.1-G41 25（3000） 27（3000） / / L3 SAE5#6.5" ECU CN Ⅳ
10 11 12 13 3Z1.1-G42 10 11 12 13.2 L3 SAE5#6.5" ECU CN Ⅳ
13 14 16 17 3ZT1.1-G42 12.8 14.1 15.5 17 L3 SAE5#6.5" ECU CN Ⅳ
15 17 19 21 4Z2.9-G43 16 18 21 23 L4 SAE4#7.5" ECU CN Ⅳ
20 23 25 28 4Z2.9-G42 22 24 26 29 L4 SAE4#7.5" ECU CN Ⅳ
25 28 28 30 4Z2.9-G41 27 30 30 33 L4 SAE4#7.5" ECU CN Ⅳ
15 17 19 21 4Z2.9-G430 16 18 21 23 L4 SAE4#7.5" VP CN Ⅳ
20 23 25 38 4Z2.9-G420 22 24 26 29 L4 SAE4#7.5" VP CN Ⅳ
25 28 28 30 4Z2.9-G410 27 30 30 33 L4 SAE4#7.5" VP CN Ⅳ
31 34 38 41 4Z3.2-G42 32 35 36 40 L4 SAE4#7.5" ECU CN Ⅳ
38 41 38 42 4Z3.2-G41 36 40 36.8 41 L4 SAE4#7.5" ECU CN Ⅳ
60 66 69 75 4ZTAA3.2-G34 58 63.5 64 70.5 L4 SAE3#11.5" ECU CN Ⅲ
40 44 50 55 4ZTAA3.2-G33 39 44 49 54 L4 SAE3#11.5" ECU CN Ⅲ
50 55 63 69 4ZTAA3.2-G32 49 54 60 66 L4 SAE3#11.5" ECU CN Ⅲ
69 75 75 83 4ZTAA3.2-G31 64 70 70 77 L4 SAE3#11.5" ECU CN Ⅲ
75 83 80 88 4ZTAA3.5-G31 74 81 74 81 L4 SAE3#11.5" ECU CN Ⅲ

Notes: m-FIP: mechanical fuel injection pump; e-gov: electronic governor
Advice & Contact

Shanghai New Power Automotive Technology Company Limited.
Add.: NO.2636 Jungong Road, Shanghai, 200438

Other Products