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1. Weichai America Corp.
WP06GTA
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 142.4 106.2 134.5 100.3
LP HP kW 134.6 100.4 123.9 92.4
MEP (@ rated Load on NG) psi bar 86.8 12.6 174.2 8.1
MEP (@ rated Load on LP) psi bar 82.0 11.9 143.7 7.5
Thermal Balance
Total Fuel Ft
3
/hr kg/hr 1127.3 22.9 1594.9 24.4
Heat to Work btu/min kW 6028.1 106 8462.1 100.2
Heat rejected to Cooling water at rated Load btu/min kW 4185.6 73.6 5510.6 96.9
Heat Rejection per CAC btu/min kW 722.2 12.7 625.6 11
Exhaust Heat (LHV TO 77oF) btu/min kW 5772.2 101.5 7222.4 127
Engine Radiated Heat btu/min kW 1279.6 22.5 1182.9 20.8
Weight and Power Output
Dry Weight
Fan to Flywheel lb kg 1376.7 625 1376.7 625
Rad to Flywheel lb kg 1652.0 750 1652.0 750
Wet Weight
Fan to Flywheel lb kg 1394.3 633 1394.3 633
Rad to Flywheel lb kg 1713.7 778 1713.7 778
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 ℉ ℃ 1616.0 880 1616.0 880
Exhaust Flow at Rated Power lb/hr kg/hr 1066.3 484 1066.3 484
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 859.0 390.0 925.1 420.0
Combustion Air required (entire engine) CFM m^3/min 177.9 5.0 191.6 5.4
Charge Air Cooler
Compressor Outlet Temperature ℉ ℃ 230.0 110.0 259.9 115.0
Compressor Flow Rate per CAC lb/hr kg/hr 909.5 412.9 978.9 444.4
CAC Rise over Ambient (Charge)
Specified ℉ ℃ 69.8 21 69.8 21
Acutal ℉ ℃ 54.7 12.6 53.4 11.9
Max pressure loss across the CAC inH2O kPa 48.2 12 48.2 12
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
N/A
6.75 L
Units Specificaiton
1500 2200
N/A
N/A 1.0 1.0
N/A 9.75 9.75
Counter Clockwise
N/A In-Line 4 cycle
N/A 6
N/A Turbo Charge Air Cooled
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
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Document Courtesy of Fly Parts Guy Co.
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2. Weichai America Corp.
WP06GTA
Std Metric
6.75 L
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 ℉ ℃ 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 10.2 7.6 17.0 12.7
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 1127.3 22.9 1594.9 24.4
LP Ft
3
/hr kg/hr 1132.2 23 1151.9 24
Maximum EPR Rated Pressure psi kPa 1.0 6.9 1.0 6.9
Maximum Running pressure to Electronic Pressure Regulator (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
RPM 2520
2100
RPM 3080
AH 150 150
2100
Ohms 0.002 0.002
Volts 14 14
CCA 750 750
CCA 750 750
TORCH/R 5498-3 TORCH/R 5498-3
mm 0.3-0.35 0.3-0.35
Amps 90 90
Ohms 0.59Ω ± 10% 0.59Ω ± 10%
SAE 15W-40 Low Ash Gas engine oil (.25-.5% by wt), API CD/CF or
higher; Please refer Manual book for different situation.
1-1/4" NPT
2
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3. Weichai America Corp.
WP06GTA
Std Metric
6.75 L
Units Specificaiton
1500 2200
Minimum LPG Supply Pipe Size
4
Power Curve vs. Speed (Natural Gas)
Fuel Consumption Curve vs. Speed (Natural Gas)
Power Curve vs. Speed (Liquid Propane Gas )
1/4" NPT
55
62
69
76
83
90
97
104
111
118
125
400
430
460
490
520
550
580
610
640
670
700
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)
16
19
22
25
28
31
34
37
40
220
225
230
235
240
245
250
255
260
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）
65
70
75
80
85
90
95
100
105
110
115
120
390
420
450
480
510
540
570
600
630
660
690
720
900 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.
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4. Weichai America Corp.
WP06GTA
Std Metric
6.75 L
Units Specificaiton
1500 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) 58.0 85.1 106.2 120.4 117.6 100.3
Fan Power (kW) 1.2 5.8 7.6 10.4 11.6 12.7
Net Power (kW) 56.8 79.3 98.6 110.0 106.0 87.6
Net Power data (Liquid Propane Gas)
Speed (RPM) 900 1500 1800 2200
Gross Power (kW) 66.0 100.4 98.9 92.4
Fan Power (kW) 1.2 7.6 10.4 12.7
Net Power (kW) 64.8 92.8 88.5 79.7
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).
7.5
8.0
8.5
9.0
9.5
10.0
10.5
11.0
11.5
12.0
12.5
13.0
215
220
225
230
235
240
245
250
255
260
265
270
900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200
TotalFuel（gal/h）
BSFC
(g/kW.h)
Speed (rpm)
4
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www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

5. Weichai America Corp.
WP06GTA
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 160.92 120.0 201.2 150.0
LP HP kW 134.1 100.0 132.8 99.0
MEP (@ rated Load on NG) psi bar 98.1 14.2 102.1 14.8
MEP (@ rated Load on LP) psi bar 81.7 11.9 67.4 9.8
Thermal Balance
Total Fuel Ft
3
/hr kg/hr 1319.3 26.8 1594.9 32.4
Heat to Work btu/min kW 6824.3 120 8462.1 145
Heat rejected to Cooling water at rated Load btu/min kW 4242.4 74.6 5510.6 96.9
Heat Rejection per CAC btu/min kW 836.0 14.7 625.6 11
Heat Rejected to Exhaust (LHV TO 77oF) btu/min kW 6329.5 111.3 7222.4 127
Enigne Radiated Heat btu/min kW 1632.1 28.7 1182.9 20.8
Gross Prime Power Rating
1,2,3
Per ISO 3046 at the Flywheel
NG HP kW 142.4 106.2 162.1 120.9
LP HP kW 134.6 100.4 132.6 98.9
MEP (@ rated Load on NG) psi bar 86.8 12.6 174.2 11.85
MEP (@ rated Load on LP) psi bar 82.0 11.9 143.7 9.78
Thermal Balance
Total Fuel Ft
3
/hr kg/hr 1201.1 24.4 1329.1 27
Heat to Work btu/min kW 6028.1 106 6909.6 121.5
Heat rejected to Cooling water at rated Load btu/min kW 4185.6 73.6 5561.8 97.8
Heat Rejection per CAC btu/min kW 722.2 12.7 563.0 9.9
Heat Rejected to Exhaust (LHV TO 77oF) btu/min kW 5772.2 101.5 6210.1 109.2
Engine Radiated Heat btu/min kW 1279.6 22.5 1217.0 21.4
Weight and Power Output
Dry Weight
Fan to Flywheel lb kg 1376.7 625 1376.7 625
Rad to Flywheel lb kg 1652.0 750 1652.0 750
Wet Weight
Fan to Flywheel lb kg 1394.3 633 1394.3 633
Rad to Flywheel lb kg 1713.7 778 1713.7 778
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 ℉ ℃ 1616.0 880 1616.0 880
Exhaust Flow at Rated Power lb/hr kg/hr 1066.3 484 1066.3 484
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
145
N/A
N/A
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
Turbo Charge Air Cooled
Counter Clockwise
1-5-3-6-2-4
9.75
1.0
N/A
SAE No.3
No.10
1
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Document Courtesy of Fly Parts Guy Co.
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6. Weichai America Corp.
WP06GTA
Std Metric
6.75 L 201809V2
Units
1800
Specificaiton
1500
Combustion Air required (entire engine) lb/hr kg/hr 1013.2 460.0 1143.2 519
Combustion Air required (entire engine) CFM m^3/min 209.9 5.9 236.7 6.7
Charge Air Cooler
Compressor Outlet Temperature ℉ ℃ 240.8 116.0 259.9 126.6
Compressor Flow Rate per CAC lb/hr kg/hr 1079.3 490.0 1213.4 550.9
CAC Rise over Ambient (Charge)
Specified ℉ ℃ 69.8 21 69.8 21
Acutal ℉ ℃ 57.92 14.4 61.3 16.3
Max pressure loss across the CAC inH2O kPa 48.2 12 48.2 12
Maximum Intake Air Temperature (IAT) ℉ ℃ 115.52 46.4 124.5 51.4
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 ℉ ℃ 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 10.2 7.6 13.9 10.4
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
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
2100
RPM
150
750
750
2100
750
Amps 90
CCA
CCA 750
AH 150
2520
RPM 2520
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
Ohms
Volts
0.002
0.59Ω ± 10%
0.3-0.35
0.002
14
14
90
2
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Document Courtesy of Fly Parts Guy Co.
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7. Weichai America Corp.
WP06GTA
Std Metric
6.75 L 201809V2
Units
1800
Specificaiton
1500
Fuel System
Fuel Consumption
NG Ft3
/hr kg/hr 1319.3 26.8 1594.9 32.4
LP Ft
3
/hr kg/hr 1132.2 23.0 1151.9 23.4
Maximum EPR Rated Pressure psi kPa 1.0 6.9 1.0 6.9
Maximum Running pressure to Electronic Pressure Regulator (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
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
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
210
230
250
270
290
310
330
350
370
390
410
430
450
470
490
510
11.6 20.1 30.1 36.2 51.4 61.8 67.4 76.5 84.0 93.7 101.9 106.3 120.2
Total
Fuel(m³/h)
Power (kW)
BSFC(g/kW.h)
2
3
4
5
6
7
8
9
10
11
12
13
14
210
240
270
300
330
360
390
420
450
480
510
540
570
10 20 30 40 50 60 70 80 90 100 110
Total
Fuel(galloon/h)
BSFC(g/kW.h)
Power (kW)
3
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Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com

8. Weichai America Corp.
WP06GTA
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.
8
11
14
17
20
23
26
29
32
35
38
41
44
210
230
250
270
290
310
330
350
370
390
410
430
450
14.5 36.1 57.9 72.5 86.8 108.6 130.5 144.8
Total
Fuel（m³/h）
Power (kW）
BSFC（g/kW.h）
2
3
4
5
6
7
8
9
10
11
12
13
14
230
260
290
320
350
380
410
440
470
500
530
560
590
10 20 30 40 50 60 70 80 90 100 110
Total
Fuel
(gal/h)
BSFC(g/kW.h)
Power (kW)
4
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Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com