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166-3981 PUMP & MTG GP-UNIT INJ HYD Type 1 ALSO AN ATTACHMENT 3126B MARINE ENGINE


FUEL SYSTEM
PUMP GP-FUEL INJECTION
PUMP GP-FUEL PRIMING
PUMP GP-FUEL INJECTION
REGULATOR GP-FUEL PRESSURE

MARINE ENGINE 3126B MARINE ENGINE 9ZF
 3126B Marine Engine 9ZF00001-UP SEBP3112 3126B 9ZF   (1999)

FUEL SYSTEM

PUMP GP-FUEL INJECTION
INJECTOR GP-FUEL
222-5966 INJECTOR GP-FUEL
INJECTOR GP-FUEL
222-5968 INJECTOR GP-FUEL
PUMP & MTG GP-UNIT INJ HYD
166-3981 PUMP & MTG GP-UNIT INJ HYD
PUMP & MTG GP-UNIT INJ HYD
166-3981 PUMP & MTG GP-UNIT INJ HYD
PUMP GP-FUEL INJECTION
165-9025 PUMP GP-FUEL INJECTION
PUMP GP-FUEL INJECTION
199-6065 PUMP GP-FUEL INJECTION
PUMP GP-UNIT INJECTOR HYD
172-5210 PUMP GP-UNIT INJECTOR HYD
PUMP GP-UNIT INJECTOR HYD
172-5210 PUMP GP-UNIT INJECTOR HYD
 

#SEBP31120220
 

166-3981: PUMP & MTG GP-UNIT INJ HYD

166-3981 PUMP & MTG GP-UNIT INJ HYD
Type 1
ALSO AN ATTACHMENT
i01308684 SEBP3112
1663981 PUMP & MTG GP-UNIT INJ HYD Parts scheme
  For full view, you need register

Parts for your 3126B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 176-4190 [1] TUBE AS  
2. 224-2639 [1] SEAL-O-RING (UNIT INJECTOR HYD PUMP)  
3. 172-5210 Y [1] PUMP GP-UNIT INJECTOR HYD  
4. 175-3236 [1] HOSE AS  
5. 179-7001 Y [1] ADAPTER GP-OIL LINE (UNIT INJECTOR HYDRAULIC PUMP)  
6. 3V-2431 [2] WASHER (10.2X16X2-MM THK)  
7. 4F-9653 [1] SEAL-O-RING  
8. 6V-5219 M [1] BOLT (M8X1.25X40-MM)  
9. 6V-9804 M [2] BOLT (M8X1.25X75-MM)  
10. 7J-9108 [1] SEAL-O-RING  
11. 8T-1159 M [2] BOLT-SOCKET HEAD (M10X1.5X25-MM)  
12. 9M-1974 [3] WASHER-HARD (8.8X16X2-MM THK)  
13. 9S-8004 [1] PLUG (9/16-18-THD)  
14. 6V-5049 [1] SEAL-O-RING  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP31120221
 

166-3981: PUMP & MTG GP-UNIT INJ HYD

166-3981 PUMP & MTG GP-UNIT INJ HYD
Type 2
ALSO AN ATTACHMENT
i02203733 SEBP3112
1663981 PUMP & MTG GP-UNIT INJ HYD Parts scheme
  For full view, you need register

Parts for your 3126B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 176-4190 [1] TUBE AS  
2. 183-3399 [1] CONNECTOR AS  
  6V-8636 [1] CONNECTOR  
  214-7568 [1] SEAL-O-RING  
  221-3494 [1] SEAL-O-RING  
3. 224-2639 [1] SEAL-O-RING  
4. 247-3755 [1] TUBE AS  
5. 172-5210 Y [1] PUMP GP-UNIT INJECTOR HYD  
6. 321-8638 [1] PLUG AS  
  214-7568 [1] SEAL-O-RING  
  321-8635 [1] PLUG  
7. 3J-1907 [1] SEAL-O-RING  
8. 3K-0360 [1] SEAL-O-RING  
9. 3V-2431 [2] WASHER (10.2X16X2-MM THK)  
10. 4F-9653 [1] SEAL-O-RING  
11. 6V-5219 M [1] BOLT (M8X1.25X40-MM)  
12. 6V-8397 [3] SEAL-O-RING  
13. 6V-8723 [1] ELBOW  
14. 6V-9804 M [2] BOLT (M8X1.25X75-MM)  
15. 6V-9850 [1] ELBOW  
16. 7J-9108 [1] SEAL-O-RING  
17. 8T-1159 M [2] BOLT-SOCKET HEAD (M10X1.5X25-MM)  
18. 8T-1779 [1] CONNECTOR  
19. 9M-1974 C [3] WASHER-HARD (8.8X16X2-MM THK)  
  C   CHANGE FROM PREVIOUS TYPE
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP31120222
 

165-9025: PUMP GP-FUEL INJECTION

165-9025 PUMP GP-FUEL INJECTION
ALSO AN ATTACHMENT
i01308681 SEBP3112
1659025 PUMP GP-FUEL INJECTION Parts scheme
  For full view, you need register

Parts for your 3126B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 222-5968 Y [1] INJECTOR GP-FUEL  
3. 199-6103 [1] BOLT-SPECIAL  
4. 159-0288 [1] DEFLECTOR  
5. 8T-2396 M [1] BOLT (M6X1X60-MM)  
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP31120223
 

199-6065: PUMP GP-FUEL INJECTION

199-6065 PUMP GP-FUEL INJECTION
i01686138 SEBP3112
1996065 PUMP GP-FUEL INJECTION Parts scheme
  For full view, you need register

Parts for your 3126B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 222-5966 Y [1] INJECTOR GP-FUEL  
3. 199-6103 [1] BOLT-SPECIAL  
4. 159-0288 [1] DEFLECTOR  
5. 8T-2396 M [1] BOLT (M6X1X60-MM)  
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP31120224
 

154-9283: PUMP GP-FUEL PRIMING

154-9283 PUMP GP-FUEL PRIMING
FOR USE WITH @@@@@132-9337@@@@@
AN ATTACHMENT
i01351988 SEBP3112
1549283 PUMP GP-FUEL PRIMING Parts scheme
  For full view, you need register

Parts for your 3126B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7B-2742 [1] BOLT (1/4-20X1.25-IN)  
2. 5P-0537 [1] WASHER-HARD (7.2X14.5X2-MM THK)  
3. 1P-0436 [1] GASKET (FUEL PRIMING PUMP)  
4. 137-5541 [1] PUMP GP-FUEL PRIMING (HAND)  
5. 1B-2790 [1] BOLT (5/16-18X1.375-IN)  
6. 9M-1974 [1] WASHER-HARD (8.8X16X2-MM THK)  
 

#SEBP31120225
 

168-8634: PUMP GP-FUEL PRIMING

168-8634 PUMP GP-FUEL PRIMING
PROVIDES PRIMING PUMP FOR LEFT FRONT FUEL FILTER
FOR USE WITH @@@@@165-8816@@@@@
AN ATTACHMENT
i01352760 SEBP3112
1688634 PUMP GP-FUEL PRIMING Parts scheme
  For full view, you need register

Parts for your 3126B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1P-0436 [1] GASKET (FUEL PRIMING PUMP)  
2. 137-5541 [1] PUMP GP-FUEL PRIMING  
3. 5P-0537 [1] WASHER-HARD (7.2X14.5X2-MM THK)  
4. 6V-5218 M [1] BOLT (M8X1.25X35-MM)  
5. 8T-0640 M [1] BOLT (M6X1X30-MM)  
6. 9M-1974 [1] WASHER-HARD (8.8X16X2-MM THK)  
  M   METRIC PART
 

#SEBP31120226
 

172-5210: PUMP GP-UNIT INJECTOR HYD

172-5210 PUMP GP-UNIT INJECTOR HYD
PART OF 166-3981 PUMP & MTG GP-UNIT INJ HYD
Type 1
ALSO AN ATTACHMENT
i01308687 SEBP3112
1725210 PUMP GP-UNIT INJECTOR HYD Parts scheme
  For full view, you need register

Parts for your 3126B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 122-5053 Y [1] VALVE GP-SOLENOID  
2. 128-3473 [1] GEAR-PUMP DRIVE (36-TEETH)  
3. 162-9612 [1] PUMP GP-FUEL TRANSFER  
4. 173-4050 [1] PUMP GP-UNIT INJECTOR HYD  
5. 4P-5918 [1] CLIP  
6. 6V-8626 [1] ELBOW  
7. 152-2939 [1] SEAL-O-RING  
8. 8T-7547 M [2] BOLT (M8X1.25X30-MM)  
9. 118-0275 [1] WASHER (13.5X32X8-MM THK)  
10. 131-1845 [1] PLUG-HEX SOCKET  
11. 144-7339 [1] SEAL-O-RING  
12. 8T-4224 [1] WASHER-HARD (8.8X16X2-MM THK)  
13. 153-4906 [1] SEAL-O-RING  
14. 179-7004 [1] ADAPTER AS  
15. 8T-4139 M [1] BOLT (M12X1.75X30-MM)  
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP31120227
 

172-5210: PUMP GP-UNIT INJECTOR HYD

172-5210 PUMP GP-UNIT INJECTOR HYD
PART OF 166-3981 PUMP & MTG GP-UNIT INJ HYD
Type 2
ALSO AN ATTACHMENT
i02203897 SEBP3112
1725210 PUMP GP-UNIT INJECTOR HYD Parts scheme
  For full view, you need register

Parts for your 3126B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 122-5053 Y [1] VALVE GP-SOLENOID  
2. 128-3473 [1] GEAR-PUMP DRIVE (36-TEETH)  
3. 162-9612 [1] PUMP GP-FUEL TRANSFER  
4. 173-4050 [1] PUMP GP-UNIT INJECTOR HYD  
5. 4P-5918 [1] CLIP  
6. 281-5975 [1] ELBOW AS  
  228-7091 [1] SEAL-O-RING  
  6V-8626 [1] ELBOW  
6A. 238-5081 [1] SEAL-O-RING  
7. 8T-4139 M [1] BOLT (M12X1.75X30-MM)  
8. 8T-7547 M [2] BOLT (M8X1.25X30-MM)  
9. 118-0275 [1] WASHER (13.5X32X8-MM THK)  
10. 131-1845 [1] PLUG-HEX SOCKET  
11. 144-7339 [1] SEAL-O-RING  
12. 8T-4224 [1] WASHER-HARD (8.8X16X2-MM THK)  
13. 250-1424 [1] ELBOW AS  
  6V-8724 [1] ELBOW  
  214-7568 [1] SEAL-O-RING  
13A. 228-7089 [1] SEAL-O-RING  
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP31120228
 

205-1306: REGULATOR GP-FUEL PRESSURE

205-1306 REGULATOR GP-FUEL PRESSURE
S/N 9ZF672-UP
PART OF 165-8816, 165-8818 FILTER & LINES GP-FUEL
AN ATTACHMENT
i01964034 SEBP3112
2051306 REGULATOR GP-FUEL PRESSURE Parts scheme
  For full view, you need register

Parts for your 3126B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 295-1803 [1] ELBOW AS  
1A. 6V-5049 [1] SEAL-O-RING  
  196-6838 ELBOW  
2. 232-0343 Y [1] REGULATOR GP-FUEL PRESSURE  
  Y   SEPARATE ILLUSTRATION
 

#SEBP31120229
 

232-0343: REGULATOR GP-FUEL PRESSURE

232-0343 REGULATOR GP-FUEL PRESSURE
S/N 9ZF672-UP
PART OF 165-8816, 165-8818 FILTER & LINES GP-FUEL, 205-1306 REGULATOR GP-FUEL PRESSURE
AN ATTACHMENT
i01970511 SEBP3112
2320343 REGULATOR GP-FUEL PRESSURE Parts scheme
  For full view, you need register

Parts for your 3126B MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 214-7568 [1] SEAL-O-RING  
2. 369-6662 [1] REGULATOR AS (FUEL PRESSURE)  
 

Information:

Engine News
Improved O-Ring Seals for Fuel Injectors for Longer Seal Life {1254}
2003/10/01
Replacement of the Injection Actuation Pressure Control Valve {5051}
2004/04/01
Service Tips for the Hydraulic Electronic Unit Injector HEUI Pump {1714}
2006/03/13
Special Instruction
Determining the Cause of Fuel Dilution of Engine Oil {1101, 1124, 1251, 1280, 1290}
Determining the Cause of Fuel Dilution of Engine Oil {1101, 1124, 1251, 1280, 1290}
New Fuel Priming Instructions are Available for Certain 3126B Engines {1258, 1290}
New Fuel Priming Instructions are Available for Certain 3126B Engines {1258, 1290}
Specifications
Injection Actuation Pressure Control Valve
3126B Marine Engine
Injection Actuation Pressure Sensor
3126B Marine Engine
Tool Operating Manual
Using the 223-2454 Tool Group on 3114, 3116, and 3126 Engines with Mechanical Unit Injectors (MUI){0374, 0599, 0701, 0706, 1251, 1252, 1254}
Using the 223-2454 Tool Group on 3114, 3116, and 3126 Engines with Mechanical Unit Injectors (MUI){0374, 0599, 0701, 0706, 1251, 1252, 1254}
Information Release Memo
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
Testing and Adjusting
Unit Injector - Test
3126B Marine Engine
Troubleshooting
Injector Solenoid Circuit - Test
3126B Marine Engines
CID 0001 FMI 11 Cylinder #1 Injector fault
3126B Marine Engines
CID 0002 FMI 11 Cylinder #2 Injector fault
3126B Marine Engines
CID 0003 FMI 11 Cylinder #3 Injector fault
3126B Marine Engines
CID 0004 FMI 11 Cylinder #4 Injector fault
3126B Marine Engines
CID 0005 FMI 11 Cylinder #5 Injector fault
3126B Marine Engines
CID 0006 FMI 11 Cylinder #6 Injector fault
3126B Marine Engines
Disassembly and Assembly
Unit Injector - Remove
3126B Marine Engine
Unit Injector - Install
3126B Marine Engine
Service Magazine
Do Not Reuse the Hold Down Bolts for the Fuel Injectors On All Products that Contain C9 Through C32 Engines {1290}
2014/08/14

Caterpillar Parts SIS Catalog 3126B :

LINES GP-FLEXIBLE FUEL
177-1823 LINES GP-FLEXIBLE FUEL
INJECTOR GP-FUEL
222-5968 INJECTOR GP-FUEL
INJECTOR GP-FUEL
222-5966 INJECTOR GP-FUEL
FILTER & LINES GP-FUEL
165-8818 FILTER & LINES GP-FUEL
FILTER & LINES GP-FUEL
165-8818 FILTER & LINES GP-FUEL
FILTER & LINES GP-FUEL
165-8818 FILTER & LINES GP-FUEL
FILTER & LINES GP-FUEL
165-8816 FILTER & LINES GP-FUEL
FILTER & LINES GP-FUEL
165-8816 FILTER & LINES GP-FUEL
PUMP & MTG GP-UNIT INJ HYD
166-3981 PUMP & MTG GP-UNIT INJ HYD
PUMP GP-FUEL INJECTION
165-9025 PUMP GP-FUEL INJECTION
PUMP GP-FUEL INJECTION
199-6065 PUMP GP-FUEL INJECTION
PUMP GP-FUEL PRIMING
154-9283 PUMP GP-FUEL PRIMING
PUMP GP-FUEL PRIMING
168-8634 PUMP GP-FUEL PRIMING
PUMP GP-UNIT INJECTOR HYD
172-5210 PUMP GP-UNIT INJECTOR HYD
PUMP GP-UNIT INJECTOR HYD
172-5210 PUMP GP-UNIT INJECTOR HYD
REGULATOR GP-FUEL PRESSURE
205-1306 REGULATOR GP-FUEL PRESSURE

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