153-1832 COVER GP-VALVE MECHANISM REAR BREATHER, NO OIL FILL 3126B GEN SET ENGINE



BASIC ENGINE
VALVE MECHANISM GP
CRANKSHAFT GP
CYLINDER BLOCK GP
CYLINDER HEAD GP

GEN SET ENGINE 3126B GEN SET ENGINE BDZ
 3126B Gen Set Engine BDZ00001-UP SEBP3903 3126B BDZ   (1999)

BASIC ENGINE

VALVE MECHANISM GP
COVER GP-VALVE MECHANISM
153-1832 COVER GP-VALVE MECHANISM
LIFTER GP-VALVE
139-4081 LIFTER GP-VALVE
ROCKER ARM GP
256-3831 ROCKER ARM GP
ROCKER ARM GP
256-3834 ROCKER ARM GP
VALVE MECHANISM GP
135-2969 VALVE MECHANISM GP
VALVE MECHANISM GP
135-2969 VALVE MECHANISM GP
VALVE MECHANISM GP
235-5528 VALVE MECHANISM GP
VALVE MECHANISM GP
256-3830 VALVE MECHANISM GP
 

#SEBP39030010
 

153-1832: COVER GP-VALVE MECHANISM

153-1832 COVER GP-VALVE MECHANISM
REAR BREATHER, NO OIL FILL
i00840345 SEBP3903
1531832 COVER GP-VALVE MECHANISM Parts scheme
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Parts for your 3126B GEN SET ENGINE:

Pos. Part No Qty Parts name Comments
1. 167-8361 [1] COVER AS-BASE  
1A. 5P-5678 D SEAL (2.0M)  
2. 2W-9499 M [14] BOLT (M6X1X40-MM)  
3. 236-2101 [1] COVER AS (TOP)  
3A. 5P-5678 D SEAL (2.0M)  
4. 5P-0537 [28] WASHER-HARD (7.2X14.5X2-MM THK)  
5. 6V-7728 M [14] BOLT (M6X1X45-MM)  
  D   ORDER BY THE METER
  M   METRIC PART
 

#SEBP39030011
 

113-6087: CRANKSHAFT GP

113-6087 CRANKSHAFT GP
i00477413 SEBP3903
1136087 CRANKSHAFT GP Parts scheme
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Parts for your 3126B GEN SET ENGINE:

Pos. Part No Qty Parts name Comments
1. 489-2731 [1] CRANKSHAFT AS  
1A. 1B-8705 [1] KEY-WOODRUFF  
1B. 2W-8147 [1] GEAR (50-TEETH)  
2. 212-4893 [1] BEARING-THRUST (STANDARD)  
  229-5153 AB BEARING-THRUST (0.25-MM US)  
  229-5154 AB BEARING-THRUST (0.5-MM US)  
  229-5155 AB BEARING-THRUST (0.5-MM OS)  
  229-5156 AB BEARING-THRUST (0.5-MM OS, 0.5-MM US)  
3. 107-7708 [6] BEARING-MAIN (STANDARD)  
  145-0168 AB BEARING-MAIN (0.5-MM OS)  
  145-0170 AB BEARING-MAIN (0.5-MM OS, 0.5-MM US)  
  145-0162 AB BEARING-MAIN (0.25-MM US)  
  145-0164 AB BEARING-MAIN (0.5-MM US)  
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP39030012
 

129-1165: CYLINDER BLOCK GP

129-1165 CYLINDER BLOCK GP
i00619041 SEBP3903
1291165 CYLINDER BLOCK GP Parts scheme
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Parts for your 3126B GEN SET ENGINE:

Pos. Part No Qty Parts name Comments
1. 305-8141 Y [1] CYLINDER BLOCK GP  
2. 1W-8407 [2] SLEEVE  
3. 6V-3538 [2] DOWEL  
4. 7N-5683 [2] DOWEL  
5. 396-0393 [1] PLUG AS  
5A. 360-3677 [1] PLUG (7/16-20-THD)  
5B. 214-7566 [1] SEAL-O-RING  
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP39030013
 

263-3774: CYLINDER BLOCK GP

263-3774 CYLINDER BLOCK GP
PART OF 305-8141 CYLINDER BLOCK GP
i02347180 SEBP3903
2633774 CYLINDER BLOCK GP Parts scheme
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Parts for your 3126B GEN SET ENGINE:

Pos. Part No Qty Parts name Comments
1. 7E-2968 [7] CAP-CRANKSHAFT BEARING  
2. 9X-8916 M [14] BOLT (M16X2X140-MM)  
3. 5P-8247 [14] WASHER-HARD (17X32X3.5-MM THK)  
  M   METRIC PART
 

#SEBP39030014
 

305-8141: CYLINDER BLOCK GP

305-8141 CYLINDER BLOCK GP
PART OF 129-1165 CYLINDER BLOCK GP
i02690923 SEBP3903
3058141 CYLINDER BLOCK GP Parts scheme
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Parts for your 3126B GEN SET ENGINE:

Pos. Part No Qty Parts name Comments
1. 263-3774 Y [1] CYLINDER BLOCK GP  
2. 2M-6471 [2] PLUG-CUP  
3. 3H-5552 [1] PLUG-CUP  
4. 309-5131 [1] PLUG AS  
  9S-8006 [1] PLUG (7/8-14-THD)  
  238-5081 [1] SEAL-O-RING  
5. 2W-7213 [6] BUSHING (CAMSHAFT)  
6. 216-5586 [1] BUSHING (CAMSHAFT)  
   
  107-7604 ABF SLEEVE-CYLINDER  
    (FOR SALVAGE OF CYLINDER BORE IN BLOCK.
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  F   NOT SHOWN
  Y   SEPARATE ILLUSTRATION
 

#SEBP39030015
 

205-1271: CYLINDER HEAD AS

205-1271 CYLINDER HEAD AS
S/N BDZ1-32
PART OF 205-1272 CYLINDER HEAD AS, 205-1273 CYLINDER HEAD GP
FIELD REPLACEMENT ORDER @@@@@205-1272@@@@@
i01636295 SEBP3903
2051271 CYLINDER HEAD AS Parts scheme
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Parts for your 3126B GEN SET ENGINE:

Pos. Part No Qty Parts name Comments
2. 8M-5860 [12] PLUG-CUP  
3. 4F-5695 [2] PLUG-CUP  
4. 227-2911 [6] SLEEVE-INJECTOR  
5. 155-9504 [12] INSERT-VALVE SEAT (INLET)  
6. 147-8218 [6] INSERT-VALVE SEAT (EXHAUST)  
7. 8C-0563 [12] SEAL-O-RING  
8. 154-8025 [6] SETSCREW-SOCKET  
9. 9S-9334 [1] PLUG (1-5/16-12-THD)  
10. 9X-7712 [1] SEAL-O-RING  
 

#SEBP39030016
 

205-1272: CYLINDER HEAD AS

205-1272 CYLINDER HEAD AS
S/N BDZ1-32
FIELD REPLACEMENT FOR @@@@@205-1271@@@@@
i01636378 SEBP3903
2051272 CYLINDER HEAD AS Parts scheme
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Parts for your 3126B GEN SET ENGINE:

Pos. Part No Qty Parts name Comments
1. Y [1] CYLINDER HEAD AS  
2. 9S-8002 [6] PLUG (7/16-20-THD)  
3. 6V-5048 [6] SEAL-O-RING  
4. 9S-8004 [4] PLUG (9/16-18-THD)  
5. 3J-1907 [4] SEAL-O-RING  
6. 147-8214 [12] SEAL-VALVE STEM  
7. 140-9670 [12] GUIDE-VALVE  
8. 9S-8006 [1] PLUG (7/8-14-THD)  
9. 2M-9780 [1] SEAL-O-RING  
10. 9S-9334 [1] PLUG (1-5/16-12-THD)  
11. 9X-7712 [1] SEAL-O-RING  
12. 147-8220 [6] GUIDE-VALVE  
13. 102-6229 [6] SEAL-VALVE STEM  
14. 137-6715 [6] SEAT-VALVE SPRING  
15. 9S-8005 [1] PLUG (3/4-16-THD)  
16. 3K-0360 [1] SEAL-O-RING  
17. 1N-5999 [2] PLUG-O-RING  
18. 7J-0204 [2] SEAL-O-RING  
19. 9S-8003 [1] PLUG (1/2-20-THD)  
20. 1J-9671 [1] SEAL-O-RING  
  Y   SEPARATE ILLUSTRATION
 

#SEBP39030017
 

227-5951: CYLINDER HEAD AS

227-5951 CYLINDER HEAD AS
S/N BDZ33-863
PART OF 227-5953 CYLINDER HEAD GP
FIELD REPLACEMENT ORDER @@@@@227-5952@@@@@
i01935334 SEBP3903
2275951 CYLINDER HEAD AS Parts scheme
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Parts for your 3126B GEN SET ENGINE:

Pos. Part No Qty Parts name Comments
2. 8M-5860 [12] PLUG-CUP  
3. 4F-5695 [2] PLUG-CUP  
4. 227-2911 [6] SLEEVE-INJECTOR  
5. 217-5213 [12] INSERT-VALVE SEAT (INTAKE)  
6. 147-8218 [6] INSERT-VALVE SEAT (EXHAUST)  
7. 8C-0563 [12] SEAL-O-RING  
8. 154-8025 [6] SETSCREW-SOCKET  
9. 9S-9334 [1] PLUG (1-5/16-12-THD)  
10. 9X-7712 [1] SEAL-O-RING  
 

#SEBP39030018
 

227-5952: CYLINDER HEAD AS

227-5952 CYLINDER HEAD AS
S/N BDZ33-863
FIELD REPLACEMENT FOR @@@@@227-5951@@@@@
i01935360 SEBP3903
2275952 CYLINDER HEAD AS Parts scheme
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Parts for your 3126B GEN SET ENGINE:

Pos. Part No Qty Parts name Comments
1. 163-2478 [6] SEAL-VALVE STEM  
2. 9S-8002 [6] PLUG (7/16-20-THD)  
3. 6V-5048 [6] SEAL-O-RING  
4. 9S-8004 [4] PLUG (9/16-18-THD)  
5. 3J-1907 [4] SEAL-O-RING  
6. 147-8214 [12] SEAL-VALVE STEM  
7. 140-9670 [12] GUIDE-VALVE  
8. 9S-8006 [1] PLUG (7/8-14-THD)  
9. 2M-9780 [1] SEAL-O-RING  
10. 278-3490 Y [1] CYLINDER HEAD AS  
11. 9X-7712 [1] SEAL-O-RING  
12. 147-8220 [6] GUIDE-VALVE  
13. 9S-9334 [1] PLUG (1-5/16-12-THD)  
14. 137-6715 [6] SEAT-VALVE SPRING  
15. 9S-8005 [1] PLUG (3/4-16-THD)  
16. 3K-0360 [1] SEAL-O-RING  
17. 1N-5999 [2] PLUG-O-RING  
18. 7J-0204 [2] SEAL-O-RING  
19. 9S-8003 [1] PLUG (1/2-20-THD)  
20. 1J-9671 [1] SEAL-O-RING  
  Y   SEPARATE ILLUSTRATION
 

#SEBP39030019
 

278-3490: CYLINDER HEAD AS

278-3490 CYLINDER HEAD AS
S/N BDZ33-863
PART OF 227-5952 CYLINDER HEAD AS
i02440071 SEBP3903
2783490 CYLINDER HEAD AS Parts scheme
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Parts for your 3126B GEN SET ENGINE:

Pos. Part No Qty Parts name Comments
1. 9X-7712 [1] SEAL-O-RING  
2. 8M-5860 [12] PLUG-CUP  
3. 4F-5695 [2] PLUG-CUP  
4. 227-2911 [6] SLEEVE-INJECTOR  
5. 272-9813 [12] INSERT-VALVE SEAT (INTAKE)  
6. 147-8218 [6] INSERT-VALVE SEAT (EXHAUST, STANDARD)  
  187-8282 AB INSERT-VALVE SEAT (0.127-MM OS, EXHAUST)  
  187-8283 AB INSERT-VALVE SEAT (0.25-MM OS, EXHAUST)  
  187-8284 AB INSERT-VALVE SEAT (0.508-MM OS, EXHAUST)  
7. 8C-0563 [12] SEAL-O-RING  
8. 154-8025 [6] SETSCREW-SOCKET  
9. 9S-9334 [1] PLUG (1-5/16-12-THD)  
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
 

Information:

Reuse And Salvage Guidelines
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Information Release Memo
CAT REMAN ADDING CYLINDER HEAD KITS FOR 3126B, C7, C10/C12 APPLICATIONS
CAT REMAN ADDING CYLINDER HEAD KITS FOR 3126B, C7, C10/C12 APPLICATIONS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
Troubleshooting
Excessive Valve Lash
3126B Generator Set Engine

Caterpillar Parts SIS Catalog 3126B :

COVER GP-FRONT HOUSING
172-8732 COVER GP-FRONT HOUSING
COVER GP-FRONT HOUSING
168-8639 COVER GP-FRONT HOUSING
COVER GP-CYLINDER BLOCK
205-2199 COVER GP-CYLINDER BLOCK
COVER GP-CYLINDER BLOCK
193-4712 COVER GP-CYLINDER BLOCK
CARRIER GP-SEAL
132-3844 CARRIER GP-SEAL
CAMSHAFT GP
216-7922 CAMSHAFT GP
BELT TENSIONER GP
124-7786 BELT TENSIONER GP
211-9436 ENGINE AR-CORE
CRANKSHAFT GP
113-6087 CRANKSHAFT GP
CYLINDER BLOCK GP
129-1165 CYLINDER BLOCK GP
CYLINDER BLOCK GP
263-3774 CYLINDER BLOCK GP
CYLINDER BLOCK GP
305-8141 CYLINDER BLOCK GP
CYLINDER HEAD AS
205-1271 CYLINDER HEAD AS
CYLINDER HEAD AS
205-1272 CYLINDER HEAD AS
CYLINDER HEAD AS
227-5951 CYLINDER HEAD AS
CYLINDER HEAD AS
227-5952 CYLINDER HEAD AS

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