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1. Weichai America Corp.
WP10GNA
Std Metric
Basic Data
Type
Number of cylinders
Aspiration
Bore in mm 5.0 126.00 5.0 126.0
Stroke in mm 5.1 130.00 5.1 130.0
Displacement in^3 L 593.2 9.726 593.2 9.726
Lambda
Compression Ratio
Mean Piston Speed ft/min m/s 853.0 4.33 1876.6 9.5
Rotation Viewed from Flywheel
Firing Order
Gross Prime Power Rating1,2,3
Per ISO 3046 at the Flywheel
NG HP kW 93.9 70.0 183.9 137.1
LP HP kW 100.0 74.6 109.6 81.7
MEP (@ rated Load on NG) psi bar 59.5 8.6 53.0 7.7
MEP (@ rated Load on LP) psi bar 63.5 9.2 131.5 4.6
Thermal Balance
Total Fuel Ft
3
/hr kg/hr 753.2 15.3 1348.8 32.7
Heat to Work btu/min kW 3980.8 70.0 7796.8 137.1
Heat rejected to Cooling water at rated Load btu/min kW 2462.4 43.3 7916.2 139.2
Heat Rejection per CAC btu/min kW —— —— —— ——
Heat Rejected to Exhaust (LHV TO 77oF) btu/min kW 3076.6 54.1 7694.4 135.3
Engine Radiated Heat btu/min kW 1973.4 34.7 1018.0 17.9
Weight and Power Output
Dry Weight
Fan to Flywheel lb kg 2138.5 970 2136.6 970
Rad to Flywheel lb kg 2358.9 1070 2356.8 1070
Wet Weight
Fan to Flywheel lb kg 2248.7 1020 2248.7 1020
Rad to Flywheel lb kg 2513.3 1140 2513.3 1140
Maximum Allowable Bending Moment at Rear of Block lb ft N m 7965.0 10800 7965.0 10800
Moment of Inertia About Roll Axis lb ft^2 kg m^2 60.9 44.90 60.9 44.9
Flywheel housing
Flywheel
Number of Flywheel Teeth
Exhaust System
Type
Maximum allowable Back pressure in HG kPa 3.8 15 3.8 15
Standard Catalyst Back pressure in HG kPa 3.8 8.6 3.8 8.6
Exhaust Outlet Pipe Size (exhaust manifold to catalyst inlet) in mm 3.35→2.5 85→63.5 3.35→2.5 85→63.5
Maximum Turbine Inlet Temperature ℉ ℃ 1454.0 790 1454.0 790
Exhaust Flow at Rated Power lb/hr kg/hr 594.7 270 1069.0 560
Air Induction System
Maximum allowable Intake Air Restriction with Air Cleaner
Clean inH2O kPa 4.8 1 4.8 1
Dirty inH2O kPa 24.9 6 24.9 6
Combustion Air required (entire engine) lb/hr kg/hr 550.7 250.0 1167.4 530
Combustion Air required (entire engine) CFM m^3/min 114.1 3.2 114.1 3
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 in H2O kPa 48.2 12 48.2 12
Maximum Intake Air Temperature (IAT) ℉ ℃ 131.0 55 131.0 55
ECU IAT Warning ℉ ℃ 169.9 76.6 169.9 76.6
ECU IAT Shutdown ℉ ℃ 180.0 82.2 180.0 82.2
Cooling System
N/A Naturally Aspirated
N/A 1
N/A 9.75
N/A
N/A
Counter clockwise
1-5-3-6-2-4
N/A In-Line 4 cycle
9.7 L 201809V2
Units Specificaiton
1000 2200
N/A 6
N/A SAE No.3 SAE No.3
N/A No.11.5 No.11.5
N/A 136 136
Air Cooled Manifold
1
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Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

2. Weichai America Corp.
WP10GNA
Std Metric
9.7 L 201809V2
Units Specificaiton
1000 2200
Coolant Capacity
Engine only gal L 5.8 22 5.8 22
Engine with Radiator gal L 13.2 50 13.2 50
Engine Coolant Flow gal/min L/min 89.8 340 105.7 660
Water Pump Speed
Standard Thermostat Range
Cracking Temperature ℉ ℃ 168.8 76 168.8 76
Full Open Temperature ℉ ℃ 190.4 88 190.4 88
Maximum Allowable Pressure Cap psi bar 7.4 0.50 10.3 0.7
Ambient Clearance Open Genset (water) (Air-to-Boil)
Specified ℉ ℃ ≥107 ≥42 ≥107 ≥42
Acutal ℉ ℃ 131.0 55.0 131.0 55.0
Maximum Allowable Top Tank Temperature ℉ ℃ 208.4 98 208.4 98
ECU Warning ℉ ℃ 220.0 103 205.0 103
ECU Shutdown ℉ ℃ 230.0 110 230.0 110
Fan Power HP kW 3.1 2 22.3 16.6
Fan Diameter, including blades in mm 29.9 760 29.9 760
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 7.4 5.5 7.4 5.5
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 19.1 1.3 19.1 1.3
Max Psi Bar 41.2 2.8 41.2 2.8
Rated Speed
Min Psi Bar 51.5 3.5 51.5 3.5
Max Psi Bar 85.3 5.8 85.3 5.8
Maximum Allowable Oil Temperature ℉ ℃ 239.0 115 239.0 115
Engine Oil Capacity
Min Qts L 21.1 20 21.1 20
Max Qts L 25.4 24 25.4 24
Oil Filter Capacity Qts L 1.4 1 1.4 1
ECU Oil Pressure Warning
ECU Oil Pressure Shut Down
Fuel System
Fuel Consumption
NG Ft
3
/hr kg/hr 753.2 15.3 1609.7 32.7
LP Ft
3
/hr kg/hr 649.8 13.2 398.6 22.8
Minimum Methane #
Maximum EPR Rated Pressure psi kPa 1.0 6.90 1.0 6.9
Maximum Running pressure to Electronic Pressure Regulator (EPR) inH2O kPa 10.8 2.70 10.8 2.7
Minimum Running pressure to EPR inH2O kPa 6.8 1.70 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 Size
4
AH 150 150
RPM 1270 2268
RPM 1270 2794
CCA 900 900
CCA 900 900
Ohms 0.002 0.002
Volts 28 28
Amps 70 70
Ohms 0.59Ω ± 10% 0.59Ω ± 10%
psi 30.00 30.00
Bosch R66857 Bosch R66857
mm 0.45-0.5 0.45-0.5
SAE 15W-40 Low Ash Gas engine oil (.25-.5% by wt), API CD/CF or
psi 25.00 25.00
1-1/4" NPT
1/4" NPT
2
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www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

3. Weichai America Corp.
WP10GNA
Std Metric
9.7 L 201809V2
Units Specificaiton
1000 2200
Power Curve vs. Speed (Natural Gas)
Fuel Consumption Curve vs. Speed (Natural Gas)
Power Curve vs. Speed (Liquid Propane Gas )
50
60
70
80
90
100
110
120
130
140
150
580
590
600
610
620
630
640
650
660
670
680
900 1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 1,800 1,900 2,000 2,100 2,200
Power(kW)
Speed (rpm)
Torque(N.m)
18
21
24
27
30
33
36
39
42
45
48
51
218
220
222
224
226
228
230
232
234
236
238
240
900 1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 1,800 1,900 2,000 2,100 2,200 Total
Fuel（m³/h)
Speed (rpm)
BSFC（g/kW.h）
50
60
70
80
90
100
110
120
130
140
340
390
440
490
540
590
640
690
740
790
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200
Power
(kW)
Torque
(N.m)
Speed (rpm)
3
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Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

4. Weichai America Corp.
WP10GNA
Std Metric
9.7 L 201809V2
Units Specificaiton
1000 2200
Fuel Consumption Curve vs. Speed (Liquid Propane Gas)
Net Power data (Natural Gas)
Speed (RPM) 900 1200 1500 1800 2000 2200
Gross Power (kW) 63.0 82.9 102.4 120.2 130.2 137.1
Fan Power (kW) 2.1 2.4 7.8 12.0 14.5 16.6
Net Power (kW) 60.9 80.5 94.6 108.2 115.7 120.5
Net Power data (Liquid Propane Gas)
Speed (RPM) 900 1500 1800 2200
Gross Power (kW) 56.8 111.3 132.5 81.7
Fan Power (kW) 2.0 7.8 12.0 16.6
Net Power (kW) 54.8 103.5 120.5 65.1
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).
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.
5
6
7
8
9
10
11
12
13
14
15
16
17
220
225
230
235
240
245
250
255
260
265
270
275
280
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200
TotalFuel（gal/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.
WP10GNA
Std Metric
Basic Data
Type
Number of cylinders
Aspiration
Bore in mm 5.0 126.00 5.0 126.0
Stroke in mm 5.1 130.00 5.1 130.0
Displacement in^3 L 593.2 9.726 593.2 9.726
Lambda
Compression Ratio
Mean Piston Speed ft/min m/s 1279.5 6.50 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 137.3 102.4 161.2 120.2
LP HP kW 149.3 111.3 177.7 132.5
MEP (@ rated Load on NG) psi bar 58.1 8.4 118.9 8.1
MEP (@ rated Load on LP) psi bar 63.1 9.2 131.5 8.9
Thermal Balance
Total Fuel Ft
3
/hr kg/hr 1092.8 22.2 1348.8 27.4
Heat to Work btu/min kW 5686.9 100.0 6710.6 118
Heat rejected to Cooling water at rated Load btu/min kW 5169.4 90.9 8473.5 149
Heat Rejection per CAC btu/min kW —— —— —— ——
Heat Rejected to Exhaust (LHV TO 77oF) btu/min kW 4964.7 87.3 7557.9 132.9
Enigne Radiated Heat btu/min kW 784.8 13.8 767.7 13.5
Gross Prime Power Rating
1,2,3
Per ISO 3046 at the Flywheel
NG HP kW 137.3 102.4 161.2 120.2
LP HP kW 149.3 111.3 177.7 132.5
MEP (@ rated Load on NG) psi bar 58.1 8.4 118.9 8.1
MEP (@ rated Load on LP) psi bar 63.1 9.2 131.5 8.9
Thermal Balance
Total Fuel Ft
3
/hr kg/hr 1092.8 22.2 1348.8 27.4
Heat to Work btu/min kW 5686.9 100.0 6710.6 118
Heat rejected to Cooling water at rated Load btu/min kW 5169.4 90.9 8473.5 149
Heat Rejection per CAC btu/min kW —— —— —— ——
Heat Rejected to Exhaust (LHV TO 77oF) btu/min kW 4964.7 87.3 7557.9 132.9
Engine Radiated Heat btu/min kW 784.8 13.8 767.7 13.5
Weight and Power Output
Dry Weight
Fan to Flywheel lb kg 2138.5 970 2136.6 970
Rad to Flywheel lb kg 2358.9 1070 2356.8 1070
Wet Weight
Fan to Flywheel lb kg 2248.7 1020 2248.7 1020
Rad to Flywheel lb kg 2513.3 1140 2513.3 1140
Maximum Allowable Bending Moment at Rear of Block lb ft N m 7965.0 10800 7965.0 10800
Moment of Inertia About Roll Axis lb ft^2 kg m^2 60.9 44.90 60.9 44.9
Flywheel housing
Flywheel
Number of Flywheel Teeth
Exhaust System
Type
Maximum allowable Back pressure in HG kPa 3.8 15 3.8 15
Standard Catalyst Back pressure in HG kPa 3.8 8.6 3.8 8.6
Exhaust Outlet Pipe Size (exhaust manifold to catalyst inlet) in mm 3.35→2.5 85→63.5 3.35→2.5 85→63.5
Maximum Turbine Inlet Temperature ℉ ℃ 1454.0 790 1454.0 790
Exhaust Flow at Rated Power lb/hr kg/hr 859.0 390 1069.0 485
Air Induction System
Maximum allowable Intake Air Restriction with Air Cleaner
Clean inH2O kPa 4.8 1 4.8 1
Dirty inH2O kPa 24.9 6.2 24.9 6
No.11.5
N/A
N/A
N/A
SAE No.3
9.7 L 201809V2
Specificaiton
1800
In-Line 4 cycle
6
Naturally Aspirated
1
N/A No.11.5
N/A
N/A SAE No.3
N/A
N/A
9.75
Units
1500
N/A
Counter clockwise
1-5-3-6-2-4
N/A 136 136
Air Cooled Manifold
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.
WP10GNA
Std Metric
9.7 L 201809V2
Specificaiton
1800
Units
1500
Combustion Air required (entire engine) lb/hr kg/hr 815.0 370.0 969.2 440
Combustion Air required (entire engine) CFM m^3/min 168.8 4.8 168.8 5
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 in H2O kPa 48.2 12 48.2 12
Maximum Intake Air Temperature (IAT) ℉ ℃ 131.0 55 131.0 55
ECU IAT Warning ℉ ℃ 169.9 76.6 169.9 76.6
ECU IAT Shutdown ℉ ℃ 180.0 82.2 180.0 82.2
Cooling System
Coolant Capacity
Engine only gal L 5.8 22 5.8 22
Engine with Radiator gal L 13.2 50 13.2 50
Engine Coolant Flow gal/min L/min 89.8 340 105.7 400
Water Pump Speed
Standard Thermostat Range
Cracking Temperature ℉ ℃ 168.8 76 168.8 76
Full Open Temperature ℉ ℃ 190.4 88 190.4 88
Maximum Allowable Pressure Cap psi bar 10.3 0.7 10.3 0.7
Ambient Clearance Open Genset (water) (Air-to-Boil)
Specified ℉ ℃ ≥107 ≥42 ≥107 ≥42
Acutal ℉ ℃ 131.0 55.0 131.0 55.0
Maximum Allowable Top Tank Temperature ℉ ℃ 208.4 98 208.4 98
ECU Warning ℉ ℃ 220.0 103 205.0 103
ECU Shutdown ℉ ℃ 230.0 110 230.0 110
Fan Power HP kW 10.5 7.8 16.1 12.0
Fan Diameter, including blades in mm 29.9 40.1 29.9 760
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 7.4 5.5 7.4 5.5
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 19.1 1.30 19.1 1.3
Max Psi Bar 41.2 2.8 41.2 2.8
Rated Speed
Min Psi Bar 51.5 3.5 51.5 3.5
Max Psi Bar 85.3 5.8 85.3 5.8
Maximum Allowable Oil Temperature ℉ ℃ 239.0 115 239.0 115
Engine Oil Capacity
Min Qts L 21.1 20 21.1 20
Max Qts L 25.4 24 25.4 24
Oil Filter Capacity Qts L 1.4 1 1.4 1
ECU Oil Pressure Warning
ECU Oil Pressure Shut Down
RPM 1905 2268
0.002
28
70
0.59Ω ± 10%
Bosch R66857
Bosch R66857
mm 0.45-0.5
Volts
0.59Ω ± 10%
Ohms 0.002
28
Amps 70
Ohms
0.45-0.5
SAE 15W-40 Low Ash Gas engine oil (.25-.5% by wt), API CD/CF or higher
2268
CCA 900
CCA 900
900
900
RPM 1905
AH 150 150
30.00
25.00
psi 30.00
psi 25.00
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.
WP10GNA
Std Metric
9.7 L 201809V2
Specificaiton
1800
Units
1500
Fuel System
Fuel Consumption
NG Ft3
/hr kg/hr 1092.8 22.2 1348.8 27.4
LP Ft
3
/hr kg/hr 1230.6 25.0 528.0 30.2
Minimum Methane #
Maximum EPR Rated Pressure psi kPa 1.0 6.90 1.0 6.9
Maximum Running pressure to Electronic Pressure Regulator (EPR) inH2O kPa 10.8 2.70 10.8 2.7
Minimum Running pressure to EPR inH2O kPa 6.8 1.70 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
8
11
14
17
20
23
26
29
32
35
200
250
300
350
400
450
500
550
600
650
700
10.03 24.97 50.07 59.87 74.93 89.90 99.77
Total
Fuel(m³/h)
Power (kW)
BSFC(g/kW.h)
0
2
4
6
8
10
12
14
16
18
20
150
200
250
300
350
400
450
500
550
600
650
0 20 40 60 80 100 120
Total
Fuel(galoon/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.
WP10GNA
Std Metric
9.7 L 201809V2
Specificaiton
1800
Units
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.
10
13
16
19
22
25
28
31
34
37
40
200
250
300
350
400
450
500
550
600
650
700
12.11 30.05 60.21 72.26 90.31 108.55 118.00
Total
Fuel（m³/h）
Power (kW）
BSFC（g/kW.h）
0
2
4
6
8
10
12
14
16
18
20
150
200
250
300
350
400
450
500
550
600
650
0 20 40 60 80 100 120 140
Total
Fuel(galoon/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