Document Courtesy of Fly Parts Guy Co. www.FlyPartsGuy.com

1. Weichai America Corp.
WP06GNA
Std Metric
Basic Data
Type
Number of cylinders
Aspiration
Bore in mm 4.1 105 4.1 105
Stroke in mm 5.1 130 5.1 130
Displacement in^3 L 411.9 6.75 411.9 6.75
Lambda
Compression Ratio
Mean Piston Speed ft/min m/s 1535.4 7.8 1535.4 7.8
Rotation Viewed from Flywheel
Firing Order
Gross Prime Power Rating
1,2,3
Per ISO 3046 at the Flywheel
NG HP kW 91.3 68.1 121.4 90.5
LP HP kW 96.3 71.8 102.2 76.2
MEP (@ rated Load on NG) psi bar 55.6 8.1 174.2 7.3
MEP (@ rated Load on LP) psi bar 58.7 8.5 143.7 6.2
Thermal Balance
Total Fuel Ft
3
/hr kg/hr 758.1 15.4 1068.2 21.7
Heat to Work btu/min kW 3753.4 66 5004.5 88
Heat rejected to Cooling water at rated Load btu/min kW 3383.7 59.5 4504.0 79.2
Heat Rejection per CAC btu/min kW -- -- -- --
Heat Rejected to Exhaust (LHV TO 77oF) btu/min kW 3270.0 57.5 4356.2 76.6
Engine Radiated Heat btu/min kW 511.8 9 682.4 12
Weight and Power Output
Dry Weight
Fan to Flywheel lb kg 1266.5 575 1266.5 575
Rad to Flywheel lb kg 1541.9 700 1541.9 700
Wet Weight
Fan to Flywheel lb kg 1284.1 583 1284.1 583
Rad to Flywheel lb kg 1603.5 728 1603.5 728
Maximum Allowable Bending Moment at Rear of Block lb ft N m 5457.5 7400 5457.5 7400
Moment of Inertia About Roll Axis lb ft^2 kg m^2 17.7 3.6 17.7 3.6
Flywheel housing
Flywheel
Number of Flywheel Teeth
Exhaust System
Type
Maximum allowable Back pressure inH2O kPa 68.3 17 68.3 17
Standard Catalyst Back pressure inH2O kPa 40.2 10 40.2 10
Exhaust Outlet Pipe Size (Turbo outlet to catalyst inlet) in mm 3.37→2.3577.5→59.7 3.37→2.35 77.5→59.7
Maximum Turbine Inlet Temperature ℉ ℃ -- -- -- --
Exhaust Flow at Rated Power lb/hr kg/hr 599.1 272 837.0 380
Air Induction System
Maximum allowable Intake Air Restriction with Air Cleaner
Clean inH2O kPa 8.0 2.0 8.0 2.0
Dirty inH2O kPa 14.9 3.7 14.9 3.7
Combustion Air required (entire engine) lb/hr kg/hr 565.0 256.5 788.5 358
Combustion Air required (entire engine) CFM m^3/min 117.0 3.3 163.3 4.6
Charge Air Cooler
Compressor Outlet Temperature ℉ ℃ -- -- -- --
Compressor Flow Rate per CAC lb/hr kg/hr -- -- -- --
CAC Rise over Ambient (Charge)
Specified ℉ ℃ -- -- -- --
Acutal ℉ ℃ -- -- -- --
Max pressure loss across the CAC inH2O kPa -- -- -- --
Maximum Intake Air Temperature (IAT) ℉ ℃ 131.0 55.0 131.0 55
ECU IAT Warning ℉ ℃ 169.9 76.6 169.9 76.6
ECU IAT Shutdown ℉ ℃ 180.0 82.2 180.0 82.2
N/A
6.75 L 201809V2
Units Specificaiton
1500 2200
N/A
N/A
N/A
Counter Clockwise
N/A In-Line 4 cycle
N/A 6
N/A Turbo Charge Air Cooled
1.0
9.75
1-5-3-6-2-4
N/A SAE No.3 SAE No.3
N/A No.10 No.10
N/A 145 145
Air Cooled Manifold
1
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

2. Weichai America Corp.
WP06GNA
Std Metric
6.75 L 201809V2
Units Specificaiton
1500 2200
Cooling System
Coolant Capacity
Engine only gal L 2.1 8 2.1 8
Engine with Radiator gal L 4.2 16 4.2 16
Engine Coolant Flow gal/min L/min 54.2 205 54.2 205
Water Pump Speed
Standard Thermostat Range
Cracking Temperature ℉ ℃ 167.0 75 167.0 75
Full Open Temperature ℉ ℃ 194.0 90 194.0 90
Maximum Allowable Pressure Cap psi bar 13.2 0.9 13.2 0.9
Ambient Clearance Open Genset (water) (Air-to-Boil)
Specified ℉ ℃ ≥107 ≥42 ≥107 ≥42
Acutal ℉ ℃ 122.7 50.4 125.4 51.9
Maximum Allowable Top Tank Temperature ℉ ℃ 203.0 95 203.0 95
ECU Warning ℉ ℃ 205.0 96 205.0 96
ECU Shutdown ℉ ℃ 212.0 100 212.0 100
Fan Power HP kW 3.4 2.5 10.1 7.5
Fan Diameter, including blades in mm 24.4 620 24.4 620
Fan Speed
Electrical System
Minimum Recommended Battery Capacity
Cold Cranking Current
Engine only
Engine with Drive train
Maximum Allowable Resistance of Starting Circuit
Starting Motor Power HP kW 5.4 4 5.4 4
Battery Charging Alternator
Voltage
Current
Coil primary Resistance
Spark Plug p/n
Spark plug gap
Lubrication System
Oil Specification
Oil Pressure
Idle
Min Psi Bar 11.8 0.8 11.8 0.8
Max Psi Bar 17.6 1.2 17.6 1.2
Rated Speed
Min Psi Bar 44.1 3 44.1 3
Max Psi Bar 97.0 6.6 97.0 6.6
Maximum Allowable Oil Temperature ℉ ℃ 239.0 115 239.0 115
Engine Oil Capacity
Min Qts L 14.8 14 14.8 14
Max Qts L 28.5 27 28.5 27
Oil Filter Capacity Qts L 2.1 2 2.1 2
ECU Oil Pressure Warning psi kPa 10 70 10 70
ECU Oil Pressure Shut Down psi kPa 7 49 7 49
Fuel System
Fuel Consumption
NG Ft
3
/hr kg/hr 758.1 15.4 1068.2 21.7
LP Ft
3
/hr kg/hr 836.8 17.0 984.5 20.0
Maximum EPR Rated Pressure psi kPa 1.0 6.9 1.0 6.9
Maximum Running pressure to EPR inH2O kPa 10.8 2.7 10.8 2.7
Minimum Running pressure to EPR inH2O kPa 6.8 1.7 6.8 1.7
Minimum Gas Supply Pipe Size
Maximum EPR Rated Pressure psi kPa 1.0 6.90 1.0 6.90
Maximum Running Pressure to EPR inH2O kPa 10.8 2.70 10.8 2.70
Minimum Running Pressure to EPR inH2O kPa 6.8 1.70 6.8 1.70
Minimum LPG Supply Pipe Size4
RPM 2728
1860
Ohms 0.002 0.002
1860
RPM 2728
CCA 750 750
CCA 750 750
AH 150 150
0.3-0.35
Amps 90 90
Ohms 0.59Ω ± 10% 0.59Ω ± 10%
Volts 14 14
TORCH/R 5498-3 TORCH/R 5498-3
mm 0.3-0.35
SAE 15W-40 Low Ash Gas engine oil (.25-.5% by wt), API CD/CF or
higher
1-1/4" NPT
1/4" NPT
2
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

3. Weichai America Corp.
WP06GNA
Std Metric
6.75 L 201809V2
Units Specificaiton
1500 2200
Power Curve vs. Speed (Natural Gas)
Fuel Consumption Curve vs. Speed (Natural Gas)
Power Curve vs. Speed (Liquid Propane Gas )
40
45
50
55
60
65
70
75
80
85
90
95
150
175
200
225
250
275
300
325
350
375
400
425
450
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200
Power
(kW)
Torque
(N.m)
Speed (rpm)
10
15
20
25
30
35
200
210
220
230
240
250
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 TotalFuel(m^3/h)
BSFC
(g/kW.h)
Speed (rpm)
40
46
52
58
64
70
76
82
88
300
325
350
375
400
425
450
475
500
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200
Power
(kW)
Torque
(N.m)
Speed (rpm)
3
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

4. Weichai America Corp.
WP06GNA
Std Metric
6.75 L 201809V2
Units Specificaiton
1500 2200
Fuel Consumption Curve vs. Speed (Liquid Propane Gas)
Net Power data (Natural Gas)
Speed (RPM) 1000 1500 1800 2200
Gross Power (kW) 46.1 68.1 80.0 90.5
Fan Power (kW) 1.3 2.5 4.0 7.5
Net Power (kW) 44.8 65.6 76.0 83.0
Net Power data (Liquid Propane Gas)
Speed (RPM) 1000 1500 1800 2200
Gross Power (kW) 48.9 71.8 88.0 76.2
Fan Power (kW) 1.3 2.5 4.0 7.5
Net Power (kW) 47.6 69.3 84.0 68.7
3
Production tolerances in engines and installed components can account for power variations of +/- 5%. Altitude, temperature and excessive exhaust and intake
restrictions should be applied to power calculations. Engine maybe operated at : up to 1200 feet and 86°F without power deration. For sustained operation
above these conditions, derate by 2.5% per 1000 feet, and 1.5% per 10°F.
4
The preceeding pipe sizes are only suggestions and piping sizes may vary with temperature, pressure, distance from supply and application of local codes. Gas
must be available at adequate volume and pressure for engine at the EPR.
1
Standby and overload ratings based on ISO3046.
2
All ratings are gross flywheel horsepower corrected to 77o
F at an altitude of 328 feet with no cooling fan or alternator losses using heating value for NG of
1025 BTU/SCF (HHV) and for propane of 2490 BTU/SCF (HHV).
5
6
7
8
9
10
11
12
200
210
220
230
240
250
260
270
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200
TotalFuel（gallom/h）
BSFC
(g/kW.h)
Speed (rpm)
4
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

5. Weichai America Corp.
WP06GNA
Std Metric
Basic Data
Type
Number of cylinders
Aspiration
Bore in mm 4.1 105 4.1 105
Stroke in mm 5.1 130 5.1 130
Displacement in^3 L 411.9 6.75 411.9 6.75
Lambda
Compression Ratio
Mean Piston Speed ft/min m/s 1535.4 7.8 1535.4 7.8
Rotation Viewed from Flywheel
Firing Order
Gross Standby Power Rating
1,2,3
Per ISO 3046 at the Flywheel
NG HP kW 88.5 66.0 111.3 83.0
LP HP kW 96.6 72.0 119.3 89.0
MEP (@ rated Load on NG) psi bar 53.9 7.8 56.5 8.2
MEP (@ rated Load on LP) psi bar 58.8 8.5 60.6 8.8
Thermal Balance
Total Fuel Ft
3
/hr kg/hr 758.1 15.4 900.8 18.3
Heat to Work btu/min kW 3753.4 66 4549.5 80
Heat rejected to Cooling water at rated Load btu/min kW 3383.7 59.5 4111.6 72.3
Heat Rejection per CAC btu/min kW -- -- -- --
Exhaust Heat (LHV TO 77oF) btu/min kW 3270.0 57.5 3980.8 70
Enigne Radiated Heat btu/min kW 511.8 9 597.1 10.5
Gross Prime Power Rating
1,2,3
Per ISO 3046 at the Flywheel
NG HP kW 88.5 66.0 107.3 80.0
LP HP kW 96.6 72.0 118.0 88.0
MEP (@ rated Load on NG) psi bar 53.9 7.8 174.2 7.9
MEP (@ rated Load on LP) psi bar 58.8 8.5 143.7 8.7
Thermal Balance
Total Fuel Ft
3
/hr kg/hr 758.1 15.4 900.8 18.3
Heat to Work btu/min kW 3753.4 66 4549.5 80
Heat rejected to Cooling water at rated Load btu/min kW 3383.7 59.5 4111.6 72.3
Heat Rejection per CAC btu/min kW -- -- -- --
Exhaust Heat (LHV TO 77oF) btu/min kW 3270.0 57.5 3980.8 70
Engine Radiated Heat btu/min kW 511.8 9 597.1 10.5
Weight and Power Output
Dry Weight
Fan to Flywheel lb kg 1266.5 575 1266.5 575
Rad to Flywheel lb kg 1541.9 700 1541.9 700
Wet Weight
Fan to Flywheel lb kg 1284.1 583 1284.1 583
Rad to Flywheel lb kg 1603.5 728 1603.5 728
Maximum Allowable Bending Moment at Rear of Block lb ft N m 5457.5 7400 5457.5 7400
Moment of Inertia About Roll Axis lb ft^2 kg m^2 17.7 3.62 17.7 3.62
Flywheel housing
Flywheel
Number of Flywheel Teeth
Exhaust System
Type
Maximum allowable Back pressure inH2O kPa 68.3 17 68.3 17
Standard Catalyst Back pressure inH2O kPa 40.2 10 40.2 10
Exhaust Outlet Pipe Size (Turbo outlet to catalyst inlet) in mm 3.37→2.35 77.5→59.7 3.37→2.35 77.5→59.7
Maximum Turbine Inlet Temperature ℉ ℃ -- -- -- --
Exhaust Flow at Rated Power lb/hr kg/hr 599.1 272 710.1 322
Air Induction System
Maximum allowable Intake Air Restriction with Air Cleaner
Clean inH2O kPa 8.0 2.0 8.0 2.0
Dirty inH2O kPa 14.9 3.7 14.9 3.7
N/A 145
SAE No.3
No.10
Air Cooled Manifold
N/A
N/A
SAE No.3
No.10
145
6.75 L 201809V2
Units
1800
N/A
N/A
N/A
N/A
N/A
N/A
Specificaiton
1500
In-Line 4 cycle
6
Naturally Aspirated
Counter Clockwise
1-5-3-6-2-4
9.75
1.0
N/A
1
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

6. Weichai America Corp.
WP06GNA
Std Metric
6.75 L 201809V2
Units
1800
Specificaiton
1500
Combustion Air required (entire engine) lb/hr kg/hr 565.0 256.5 668.9 303.7
Combustion Air required (entire engine) CFM m^3/min 117.0 3.3 236.7 6.7
Charge Air Cooler
Compressor Outlet Temperature ℉ ℃ -- -- -- --
Compressor Flow Rate per CAC lb/hr kg/hr -- -- -- --
CAC Rise over Ambient (Charge)
Specified ℉ ℃ -- -- -- --
Acutal ℉ ℃ -- -- -- --
Max pressure loss across the CAC inH2O kPa -- -- -- --
Maximum Intake Air Temperature (IAT) ℉ ℃ 180.0 82.2 180.0 82.2
ECU IAT Warning ℉ ℃ 169.9 76.6 169.9 76.6
ECU IAT Shutdown ℉ ℃ 180.0 82.2 180.0 82.2
Cooling System
Coolant Capacity
Engine only gal L 2.1 8 2.1 8
Engine with Radiator gal L 4.2 16 4.2 16
Engine Coolant Flow gal/min L/min 54.2 205 54.2 205
Water Pump Speed
Standard Thermostat Range
Cracking Temperature ℉ ℃ 167.0 75 167.0 75
Full Open Temperature ℉ ℃ 194.0 90 194.0 90
Maximum Allowable Pressure Cap psi bar 13.2 0.9 13.2 0.9
Ambient Clearance Open Genset (water) (Air-to-Boil)
Specified ℉ ℃ ≥107 ≥42 ≥107 ≥42
Acutal ℉ ℃ 122.7 50.4 125.8 52.1
Maximum Allowable Top Tank Temperature ℉ ℃ 214.9 101.6 214.9 101.6
ECU Warning ℉ ℃ 204.8 96.0 204.8 96.0
ECU Shutdown ℉ ℃ 214.9 101.6 214.9 101.6
Fan Power HP kW 3.4 2.5 5.4 4.0
Fan Diameter, including blades in mm 24.4 620 24.4 620
Fan Speed
Electrical System
Minimum Recommended Battery Capacity
Cold Cranking Current
Engine only
Engine with Drive train
Maximum Allowable Resistance of Starting Circuit
Starting Motor Power HP kW 5.4 4 5.4 4
Battery Charging Alternator
Voltage
Current
Coil primary Resistance
Spark Plug p/n
Spark plug gap
Lubrication System
Oil Specification
Oil Pressure
Idle
Min Psi Bar 11.8 0.8 11.8 0.8
Max Psi Bar 17.6 1.2 17.6 1.2
Rated Speed
Min Psi Bar 44.1 3 44.1 3
Max Psi Bar 97.0 6.6 97.0 6.6
Maximum Allowable Oil Temperature ℉ ℃ 239.0 115 239.0 115
Engine Oil Capacity
Min Qts L 14.8 14 14.8 14
Max Qts L 28.5 27 28.5 27
Oil Filter Capacity Qts L 2.1 2 2.1 2
ECU Oil Pressure Warning psi kPa 10 70 10 70
1860
RPM
750
AH 150
2232
RPM 2232
0.002
Ohms
mm
0.59Ω ± 10%
TORCH/R 5498-3
0.3-0.35
TORCH/R 5498-3
SAE 15W-40 Low Ash Gas engine oil (.25-.5% by wt), API CD/CF or higher;
Please refer Manual Book for different situation.
Ohms
Volts
0.59Ω ± 10%
0.3-0.35
0.002
14
14
90
150
750
750
1860
750
Amps 90
CCA
CCA
2
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

7. Weichai America Corp.
WP06GNA
Std Metric
6.75 L 201809V2
Units
1800
Specificaiton
1500
ECU Oil Pressure Shut Down psi kPa 7 49 7 49
Fuel System
Fuel Consumption
NG Ft
3
/hr kg/hr 758.1 15.4 900.8 18.3
LP Ft
3
/hr kg/hr 836.8 17.0 994.4 20.2
Maximum EPR Rated Pressure psi kPa 1.0 6.9 1.0 6.9
Maximum Running pressure toEPR inH2O kPa 10.8 2.7 10.8 2.7
Minimum Running pressure to EPR inH2O kPa 6.8 1.7 6.8 1.7
Minimum Gas Supply Pipe Size
Maximum EPR Rated Pressure psi kPa 1.0 6.90 1.0 6.90
Maximum Running Pressure to EPR inH2O kPa 10.8 2.70 10.8 2.70
Minimum Running Pressure to EPR inH2O kPa 6.8 1.70 6.8 1.70
Minimum LPG Supply Pipe Size4
Fuel Consumption Curve @ 1500 RPM (Natural Gas)
Fuel Consumption Curve @ 1500 RPM (Liquid Propane Gas)
1-1/4" NPT
1/4" NPT
5
11
17
23
29
35
41
47
0
100
200
300
400
500
600
700
6 16 26 36 46 56 66
Total
Fuel（m³/h）
BSFC(g/kW.h)
Power (kW)
2
4
6
8
10
12
14
16
0
100
200
300
400
500
600
700
7 17 27 37 47 57 67 77
Total
Fuel(galloon/h)
BSFC(g/kW.h)
Power (kW)
3
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

8. Weichai America Corp.
WP06GNA
Std Metric
6.75 L 201809V2
Units
1800
Specificaiton
1500
Fuel Consumption Curve @ 1800 RPM (Natural Gas)
Fuel Consumption Curve @ 1800 RPM (Liquid Propane Gas)
2
All ratings are gross flywheel horsepower corrected to 77o
F at an altitude of 328 feet with no cooling fan or alternator losses using heating value for NG of 1025
BTU/SCF (HHV) and for propane of 2490 BTU/SCF (HHV).
3
Production tolerances in engines and installed components can account for power variations of +/- 5%. Altitude, temperature and excessive exhaust and intake
restrictions should be applied to power calculations. Engine maybe operated at : up to 1200 feet and 86°F without power deration. For sustained operation above these
conditions, derate by 2.5% per 1000 feet, and 1.5% per 10°F.
4
The preceeding pipe sizes are only suggestions and piping sizes may vary with temperature, pressure, distance from supply and application of local codes. Gas must
be available at adequate volume and pressure for engine at the EPR.
1
Standby and overload ratings based on ISO3046.
5
11
17
23
29
35
41
47
0
100
200
300
400
500
600
700
8 17 26 35 44 53 62 71 80
Total
Fuel（m³/h）
BSFC(g/kW.h)
Power (kW)
2
4
6
8
10
12
14
16
0
100
200
300
400
500
600
700
8 18 28 38 48 58 68 78 88
Total
Fuel
(gal/h)
BSFC(g/kW.h)
Power (kW)
4
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

9. Weichai America Corp.
WP06GNA
Std Metric
Basic Data
Type
Number of cylinders
Aspiration
Bore in mm 4.1 105 4.1 105
Stroke in mm 5.1 130 5.1 130
Displacement in^3 L 411.9 6.75 411.9 6.75
Lambda
Compression Ratio
Mean Piston Speed ft/min m/s 1535.4 7.8 1535.4 7.8
Rotation Viewed from Flywheel
Firing Order
Gross Standby Power Rating
1,2,3
Per ISO 3046 at the Flywheel
NG HP kW 88.5 66.0 111.3 83.0
LP HP kW 96.6 72.0 119.3 89.0
MEP (@ rated Load on NG) psi bar 53.9 7.8 56.5 8.2
MEP (@ rated Load on LP) psi bar 58.8 8.5 60.6 8.8
Thermal Balance
Total Fuel Ft
3
/hr kg/hr 758.1 15.4 900.8 18.3
Heat to Work btu/min kW 3753.4 66 4549.5 80
Heat rejected to Cooling water at rated Load btu/min kW 3383.7 59.5 4111.6 72.3
Heat Rejection per CAC btu/min kW -- -- -- --
Exhaust Heat (LHV TO 77oF) btu/min kW 3270.0 57.5 3980.8 70
Enigne Radiated Heat btu/min kW 511.8 9 597.1 10.5
Gross Prime Power Rating
1,2,3
Per ISO 3046 at the Flywheel
NG HP kW 88.5 66.0 107.3 80.0
LP HP kW 96.6 72.0 118.0 88.0
MEP (@ rated Load on NG) psi bar 53.9 7.8 174.2 7.9
MEP (@ rated Load on LP) psi bar 58.8 8.5 143.7 8.7
Thermal Balance
Total Fuel Ft
3
/hr kg/hr 758.1 15.4 900.8 18.3
Heat to Work btu/min kW 3753.4 66 4549.5 80
Heat rejected to Cooling water at rated Load btu/min kW 3383.7 59.5 4111.6 72.3
Heat Rejection per CAC btu/min kW -- -- -- --
Exhaust Heat (LHV TO 77oF) btu/min kW 3270.0 57.5 3980.8 70
Engine Radiated Heat btu/min kW 511.8 9 597.1 10.5
Weight and Power Output
Dry Weight
Fan to Flywheel lb kg 1266.5 575 1266.5 575
Rad to Flywheel lb kg 1541.9 700 1541.9 700
Wet Weight
Fan to Flywheel lb kg 1284.1 583 1284.1 583
Rad to Flywheel lb kg 1603.5 728 1603.5 728
Maximum Allowable Bending Moment at Rear of Block lb ft N m 5457.5 7400 5457.5 7400
Moment of Inertia About Roll Axis lb ft^2 kg m^2 17.7 3.62 17.7 3.62
Flywheel housing
Flywheel
Number of Flywheel Teeth
Exhaust System
Type
Maximum allowable Back pressure inH2O kPa 68.3 17 68.3 17
Standard Catalyst Back pressure inH2O kPa 40.2 10 40.2 10
Exhaust Outlet Pipe Size (Turbo outlet to catalyst inlet) in mm 3.37→2.35 77.5→59.7 3.37→2.35 77.5→59.7
Maximum Turbine Inlet Temperature ℉ ℃ -- -- -- --
Exhaust Flow at Rated Power lb/hr kg/hr 599.1 272 710.1 322
Air Induction System
Maximum allowable Intake Air Restriction with Air Cleaner
Clean inH2O kPa 8.0 2.0 8.0 2.0
Dirty inH2O kPa 14.9 3.7 14.9 3.7
N/A 145
SAE No.3
No.10
Air Cooled Manifold
N/A
N/A
SAE No.3
No.10
145
6.75 L 201809V2
Units
1800
N/A
N/A
N/A
N/A
N/A
N/A
Specificaiton
1500
In-Line 4 cycle
6
Naturally Aspirated
Counter Clockwise
1-5-3-6-2-4
9.75
1.0
N/A
1
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

10. Weichai America Corp.
WP06GNA
Std Metric
6.75 L 201809V2
Units
1800
Specificaiton
1500
Combustion Air required (entire engine) lb/hr kg/hr 565.0 256.5 668.9 303.7
Combustion Air required (entire engine) CFM m^3/min 117.0 3.3 236.7 6.7
Charge Air Cooler
Compressor Outlet Temperature ℉ ℃ -- -- -- --
Compressor Flow Rate per CAC lb/hr kg/hr -- -- -- --
CAC Rise over Ambient (Charge)
Specified ℉ ℃ -- -- -- --
Acutal ℉ ℃ -- -- -- --
Max pressure loss across the CAC inH2O kPa -- -- -- --
Maximum Intake Air Temperature (IAT) ℉ ℃ 180.0 82.2 180.0 82.2
ECU IAT Warning ℉ ℃ 169.9 76.6 169.9 76.6
ECU IAT Shutdown ℉ ℃ 180.0 82.2 180.0 82.2
Cooling System
Coolant Capacity
Engine only gal L 2.1 8 2.1 8
Engine with Radiator gal L 4.2 16 4.2 16
Engine Coolant Flow gal/min L/min 54.2 205 54.2 205
Water Pump Speed
Standard Thermostat Range
Cracking Temperature ℉ ℃ 167.0 75 167.0 75
Full Open Temperature ℉ ℃ 194.0 90 194.0 90
Maximum Allowable Pressure Cap psi bar 13.2 0.9 13.2 0.9
Ambient Clearance Open Genset (water) (Air-to-Boil)
Specified ℉ ℃ ≥107 ≥42 ≥107 ≥42
Acutal ℉ ℃ 122.7 50.4 125.8 52.1
Maximum Allowable Top Tank Temperature ℉ ℃ 214.9 101.6 214.9 101.6
ECU Warning ℉ ℃ 204.8 96.0 204.8 96.0
ECU Shutdown ℉ ℃ 214.9 101.6 214.9 101.6
Fan Power HP kW 3.4 2.5 5.4 4.0
Fan Diameter, including blades in mm 24.4 620 24.4 620
Fan Speed
Electrical System
Minimum Recommended Battery Capacity
Cold Cranking Current
Engine only
Engine with Drive train
Maximum Allowable Resistance of Starting Circuit
Starting Motor Power HP kW 5.4 4 5.4 4
Battery Charging Alternator
Voltage
Current
Coil primary Resistance
Spark Plug p/n
Spark plug gap
Lubrication System
Oil Specification
Oil Pressure
Idle
Min Psi Bar 11.8 0.8 11.8 0.8
Max Psi Bar 17.6 1.2 17.6 1.2
Rated Speed
Min Psi Bar 44.1 3 44.1 3
Max Psi Bar 97.0 6.6 97.0 6.6
Maximum Allowable Oil Temperature ℉ ℃ 239.0 115 239.0 115
Engine Oil Capacity
Min Qts L 14.8 14 14.8 14
Max Qts L 28.5 27 28.5 27
Oil Filter Capacity Qts L 2.1 2 2.1 2
ECU Oil Pressure Warning psi kPa 10 70 10 70
1860
RPM
750
AH 150
2232
RPM 2232
0.002
Ohms
mm
0.59Ω ± 10%
TORCH/R 5498-3
0.3-0.35
TORCH/R 5498-3
SAE 15W-40 Low Ash Gas engine oil (.25-.5% by wt), API CD/CF or higher;
Please refer Manual Book for different situation.
Ohms
Volts
0.59Ω ± 10%
0.3-0.35
0.002
14
14
90
150
750
750
1860
750
Amps 90
CCA
CCA
2
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

11. Weichai America Corp.
WP06GNA
Std Metric
6.75 L 201809V2
Units
1800
Specificaiton
1500
ECU Oil Pressure Shut Down psi kPa 7 49 7 49
Fuel System
Fuel Consumption
NG Ft
3
/hr kg/hr 758.1 15.4 900.8 18.3
LP Ft
3
/hr kg/hr 836.8 17.0 994.4 20.2
Maximum EPR Rated Pressure psi kPa 1.0 6.9 1.0 6.9
Maximum Running pressure toEPR inH2O kPa 10.8 2.7 10.8 2.7
Minimum Running pressure to EPR inH2O kPa 6.8 1.7 6.8 1.7
Minimum Gas Supply Pipe Size
Maximum EPR Rated Pressure psi kPa 1.0 6.90 1.0 6.90
Maximum Running Pressure to EPR inH2O kPa 10.8 2.70 10.8 2.70
Minimum Running Pressure to EPR inH2O kPa 6.8 1.70 6.8 1.70
Minimum LPG Supply Pipe Size4
Fuel Consumption Curve @ 1500 RPM (Natural Gas)
Fuel Consumption Curve @ 1500 RPM (Liquid Propane Gas)
1-1/4" NPT
1/4" NPT
5
11
17
23
29
35
41
47
0
100
200
300
400
500
600
700
6 16 26 36 46 56 66
Total
Fuel（m³/h）
BSFC(g/kW.h)
Power (kW)
2
4
6
8
10
12
14
16
0
100
200
300
400
500
600
700
7 17 27 37 47 57 67 77
Total
Fuel(galloon/h)
BSFC(g/kW.h)
Power (kW)
3
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

12. Weichai America Corp.
WP06GNA
Std Metric
6.75 L 201809V2
Units
1800
Specificaiton
1500
Fuel Consumption Curve @ 1800 RPM (Natural Gas)
Fuel Consumption Curve @ 1800 RPM (Liquid Propane Gas)
2
All ratings are gross flywheel horsepower corrected to 77o
F at an altitude of 328 feet with no cooling fan or alternator losses using heating value for NG of 1025
BTU/SCF (HHV) and for propane of 2490 BTU/SCF (HHV).
3
Production tolerances in engines and installed components can account for power variations of +/- 5%. Altitude, temperature and excessive exhaust and intake
restrictions should be applied to power calculations. Engine maybe operated at : up to 1200 feet and 86°F without power deration. For sustained operation above these
conditions, derate by 2.5% per 1000 feet, and 1.5% per 10°F.
4
The preceeding pipe sizes are only suggestions and piping sizes may vary with temperature, pressure, distance from supply and application of local codes. Gas must
be available at adequate volume and pressure for engine at the EPR.
1
Standby and overload ratings based on ISO3046.
5
11
17
23
29
35
41
47
0
100
200
300
400
500
600
700
8 17 26 35 44 53 62 71 80
Total
Fuel（m³/h）
BSFC(g/kW.h)
Power (kW)
2
4
6
8
10
12
14
16
0
100
200
300
400
500
600
700
8 18 28 38 48 58 68 78 88
Total
Fuel
(gal/h)
BSFC(g/kW.h)
Power (kW)
4
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com