F1857 HEX CAP SCREW, 5/16 - 18 X 5/8 Force
H0095B81G, H0095H82H, H0152B78D, H0257F88A, H0257F88B, H0352F90B, H0352F90C, H0353E91A, H0353E91B, H0355D89A, H0356F89B, H0356H75F, H0357C88B, H0357F89C, H0357G90A, H0456B78J, H0456B79K, H0456B80L, H0457H82N, H0457H83P, H0503B83A, H0503H84B, H0504H88
HEX
Price: query
Rating:
Compatible models:
H0095B81G
H0095H82H
H0152B78D
H0257F88A
H0257F88B
H0352F90B
H0352F90C
H0353E91A
H0353E91B
H0355D89A
H0356F89B
H0356H75F
H0357C88B
H0357F89C
H0357G90A
H0456B78J
H0456B79K
H0456B80L
H0457H82N
H0457H83P
H0503B83A
H0503H84B
H0504H88C
H0504H88D
H0504P89B
H0505C89B
H0507A89C
H0507A89D
H0507A90A
H0507A90B
H0507A90C
H0507A90D
H0507A91A
H0507A91C
H0507A92A
H0507B85A
H0507C86A
H0507C87A
H0507C87C
H0507C88B
H0507E91B
H0507F87B
H0507F88A
H0507H81A
H0507H82B
H0507Z89B
H0555H74G
H0558H79L
H0559B80M
H0559H77H
H0559H77J
H0559H78K
H0559H80N
H0559H83R
H0606H84A
H0659B78B
H0700H79A
H0709B79A
H0750H79A
H0756H80F
H0756H81G
H0756H82H
H0757B79E
H0757H75A
H0757H76C
H0757H78D
H0758H80B
H0758H82E
H0759H79A
H0850H79A
H0850H80A
H0850H81C
H0851H79A
H0851X88A
H0853F88B
H0853F89C
H0853F89E
H0853F89F
H0853F89G
H0855H79A
H0856A89A
H0856A89H
H0856B80H
H0856C87A
H0856C87B
H0856F84A
H0856F85A
H0856F86A
H0856H82K
H0856L89D
H0856Y89B
H0857B78F
H0857H79G
H0858B80C
H0858B82E
H0858C84H
H0859B79B
H0859H77A
H0859H78A
H0903E91D
H0903F90B
H0903F90C
H0903F91A
H0903F91C
H0906A90A
H0906R83D
H1000H79A
H1004H79A
H1006B80B
H1006B81C
H1007H79A
H1008H80A
H1008H83C
H1057B78H
H1058H82G
H1058V83H
H1059H76D
H1059H77G
H1150H79A
H1151H79A
H1154B79A
H1155H79A
H1156H80C
H1156H81D
H1157B79B
H1157H78A
H1158B82E
H1158H80D
H1158H84G
H1159H77A
H1159H78B
H1159H79C
H1209H76F
H1251A88A
H1251A88B
H1251A88C
H1251A89A
H1251A89B
H1251A89C
H1251A89D
H1251A89E
H1251F84A
H1251F86A
H1251F87A
H1251F87B
H1251X85A
H1258H81A
H1400H79A
H1401H79A
H1405H79A
H1406H80C
H1406H81D
H1407B79B
H1407H78A
H1408B80C
H1408H82D
H1408H83E
H1409H78A
H1409H79B
Force
Force entire parts catalog list:
- MOTOR LEG » F1857
- MOTOR LEG » F1857
- ENGINE COVER AND SUPPORT PLATE » F1857
- ENGINE COVER AND SUPPORT PLATE » F1857
- SPACER PLATE » F1857
- ENGINE COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER (FORCE MODELS) » F1857
- ENGINE COVER (BAYLINER MODELS) » F1857
- SPACER PLATE » F1857
- ENGINE COVER FORCE MODELS » F1857
- ENGINE COVER BAYLINER MODELS » F1857
- SPACER PLATE » F1857
- ENGINE COVER » F1857
- ENGINE COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER (FORCE MODELS) » F1857
- ENGINE COVER (BLUE FIN MODELS) » F1857
- SPACER PLATE » F1857
- ENGINE COVER FORCE MODELS » F1857
- ENGINE COVER BLUE FIN MODELS » F1857
- POWER HEAD » F1857
- SPACER PLATE » F1857
- ENGINE COVER » F1857
- ENGINE COVER (BLUE FIN MODELS) » F1857
- SPACER PLATE » F1857
- ENGINE COVER (FORCE MODELS) » F1857
- SPACER PLATE » F1857
- ENGINE COVER (FORCE MODELS) » F1857
- ENGINE COVER (BAYLINER MODELS) » F1857
- POWER HEAD » F1857
- POWER HEAD » F1857
- POWER HEAD » F1857
- POWER HEAD » F1857
- POWER HEAD » F1857
- POWER HEAD » F1857
- POWER HEAD » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER FORCE MODELS » F1857
- ENGINE COVER CAJUN MODELS » F1857
- ENGINE COVER BAYLINER MODELS » F1857
- SPACER PLATE » F1857
- ENGINE COVER FORCE MODELS » F1857
- ENGINE COVER CAJUN MODELS » F1857
- ENGINE COVER BAYLINER MODELS » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER SPECTRUM & BAYLINER MODELS » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER SPECTRUM & BAYLINER MODELS » F1857
- ENGINE COVER MAXUM MODELS » F1857
- ENGINE COVER FORCE MODELS » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER SPECTRUM & BAYLINER MODELS » F1857
- ENGINE COVER MAXUM MODELS » F1857
- ENGINE COVER FORCE MODELS » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER (SPECTRUM & BAYLINER MODELS) » F1857
- ENGINE COVER (MAXUM MODELS) » F1857
- ENGINE COVER (FORCE MODELS) » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- ENGINE COVER SPECTRUM & BAYLINER MODELS » F1857
- ENGINE COVER MAXUM MODELS » F1857
- ENGINE COVER FORCE MODELS » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- SPACER PLATE » F1857
- SPACER PLATE » F1857
- ENGINE COVER SPECTRUM & BAYLINER MODELS » F1857
- ENGINE COVER MAXUM MODELS » F1857
- ENGINE COVER FORCE MODELS » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER SPECTRUM & BAYLINER MODELS » F1857
- ENGINE COVER MAXUM MODELS » F1857
- ENGINE COVER FORCE MODELS » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER SPECTRUM & BAYLINER MODELS » F1857
- ENGINE COVER MAXUM MODELS » F1857
- ENGINE COVER FORCE MODELS » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER MAXUM MODELS » F1857
- ENGINE COVER FORCE MODELS » F1857
- ENGINE COVER BAYLINER MODELS » F1857
- CYLINDER BLOCK HEAD AND EXHAUST CHEST COVER » F1857
- ENGINE COVER BAYLINER MODELS » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER MAXUM MODELS » F1857
- ENGINE COVER FORCE MODELS » F1857
- SPACER PLATE » F1857
- ENGINE COVER MAXUM MODELS » F1857
- ENGINE COVER FORCE MODELS » F1857
- ENGINE COVER BAYLINER MODELS » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- POWER HEAD » F1857
- POWER HEAD » F1857
- POWER HEAD » F1857
H0507C88B 1988
- SPACER PLATE » F1857
- ENGINE COVER FORCE MODELS » F1857
- ENGINE COVER CAJUN MODELS » F1857
- ENGINE COVER BAYLINER MODELS » F1857
- CYLINDER BLOCK, HEAD AND EXHAUST CHEST COVER » F1857
- SPACER PLATE » F1857
- ENGINE COVER (MAXUM MODELS) » F1857
- ENGINE COVER (FORCE MODELS) » F1857
- ENGINE COVER (BAYLINER MODELS) » F1857
Information:
Table 1
Diagnostic Trouble Codes for the Intake Valve Actuators    
J1939 Code    CDL Code    Description    Information    
2950-5     1901-5     Engine Intake Valve Actuator #1 : Current Below Normal     The ECM monitors the current flow through the circuit for each actuator. If low current flow (open circuit) is detected, a -5 diagnostic code is activated. The ECM continues to try to activate the actuator. If high current flow (short circuit) is detected, a -6 diagnostic trouble code is activated. The ECM will disable the solenoid circuit in order to prevent damage from the high current flow. However, the ECM will periodically try to activate the actuator. If the short circuit remains, this sequence of events will be repeated until the problem is corrected.
The ECM takes the following actions while the code is active:
Engine power is derated by ten percent.
The amber warning lamp is illuminated.
These codes are usually caused by a wiring problem. The wiring problem can be on the outside of the engine or underneath the valve cover.    
2950-6     1901-6     Engine Intake Valve Actuator #1 : Current Above Normal    
2951-5     1902-5     Engine Intake Valve Actuator #2 : Current Below Normal    
2951-6     1902-6     Engine Intake Valve Actuator #2 : Current Above Normal    
2952-5     1903-5     Engine Intake Valve Actuator #3 : Current Below Normal    
2952-6     1903-6     Engine Intake Valve Actuator #3 : Current Above Normal    
2953-5     1904-5     Engine Intake Valve Actuator #4 : Current Below Normal    
2953-6     1904-6     Engine Intake Valve Actuator #4 : Current Above Normal    
2954-5     1905-5     Engine Intake Valve Actuator #5 : Current Below Normal    
2954-6     1905-6     Engine Intake Valve Actuator #5 : Current Above Normal    
2955-5     1906-5     Engine Intake Valve Actuator #6 : Current Below Normal    
2955-6     1906-6     Engine Intake Valve Actuator #6 : Current Above Normal    
Follow the troubleshooting procedure in order to identify the root cause of the problem.    System Operation During Engine OperationThe intake valve actuation system does not operate until the engine has reached normal operating temperature. Also, the engine must meet certain operating conditions in order to activate the intake valve actuation system.There are three housings under the valve cover. Each housing contains two actuators. There is a solenoid for each actuator. The ECM sends a command to a solenoid when the ECM requires the intake valves for a cylinder to remain open. The ECM monitors the current flow through the circuit for the solenoid. The ECM activates a diagnostic code if the current flow is below normal or above normal."Intake Valve Actuator Solenoid Test"This test is available on the Caterpillar Electronic Technician (ET). The test helps diagnose problems with the circuits for the solenoids. The following conditions must be met before the test will function:
Engine speed must be zero.
Vehicle speed must be zero.
The transmission gearshift lever must be in neutral.
Illustration 1 g02300033
Schematic for the C15 engine
Illustration 2 g01185728
P2 terminals for the intake valve actuators (18) Actuator 4 return (21) Actuator 5 return (22) Actuator 2 return (31) Actuator 3 return (42) Actuator 6 return (50) Actuator 1 return (58) Actuator 5 & 6 supply (67) Actuator 3 & 4 supply (68) Actuator 1 & 2 supply
Table 2
Troubleshooting Test Steps    Values    Results    
1. Inspect the Electrical Connectors and the Wiring
A. Check the engine harness between the P2 connector and the connectors near the grommets. Look for the following problems:
1. Moisture
2. Loose connectors or damaged connectors
3.Damage that is caused by excessive heat
4. Damage that is caused by chafing
5. Improper routing of wiring
6. Damaged insulation
B.Inspect the connectors near the grommets. The connectors must be clean and dry.
C. Perform a 45 N (10 lb) pull test on each of the wires in the connectors. This test verifies that the wire is properly crimped to the terminal and that the terminal is properly inserted into the connector.
   
Moisture
Damage to connectors    
Result: The wiring is OK.
If you are troubleshooting a -5 code, proceed to Test Step 2.
If you are troubleshooting a -6 code, proceed to Test Step 4.
Result: The wiring is not OK.
Repair the wiring problem. Replace parts, if necessary. Perform the "Intake Valve Actuator Solenoid Test".
If all of the actuators pass the test, troubleshooting is complete. Return the unit to service.
   
2. Short the External Wiring Harness
A.Connect a jumper wire to the engine harness connector. Connect the jumper wire between the appropriate terminals for the supply and for the return of the suspect actuator.
The jumper will replace the actuator and the valve cover wiring harness with a short circuit. Refer to Illustration 1 or Illustration 2.
B. Perform the "Intake Valve Actuator Solenoid Test". Determine the test result for the suspect cylinder.
   
Short Circuit indicated    
Result: The test result indicated "Not Active: Device Open" for the suspect cylinder.
The ECM did not detect the jumper wire. There is an open circuit in the wiring between the valve cover connector and the P2 connector. There may be a problem inside a connector.
Repair the wiring problem. Replace parts, if necessary. Connect all of the electrical connectors.
Perform the "Intake Valve Actuator Solenoid Test". Verify that all of the cylinders pass the test.
Result: The test result indicated "Not Active: Device Short" for the suspect cylinder.
The ECM detected the jumper wire. The external engine wiring harness is OK.
proceed to Test Step 3.
   
3. Inspect Wiring Under the Valve Cover
A. Remove the valve cover. Look for these problems:
1. Loose connectors or damaged connectors
2.Damage that is caused by excessive heat
3. Damage that is caused by chafing
4. Improper routing of wiring
5. Damaged insulation
Repair any wiring problems. Replace parts, if necessary.
Connect all of the electrical connectors.
Perform the "Intake Valve Actuator Solenoid Test".
   
Damage to wires or connectors    
Result: The suspect cylinder passed the test. the problem is resolved.
Return the engine to service.
Result: The suspect cylinder failed the test.
Replace the appropriate actuator housing.
Verify that all actuators pass the "Intake Valve Actuator Solenoid Test"
Parts hex Force:
F1920
F1920 HEX NUT, 5/8 - 18
H0352H77H, H0352H79L, H0353H78K, H0353H80M, H0353H81N, H0353H82P, H0356H75F, H0456B78J, H0456B79K, H0456B80L, H0457H82N, H0457H83P, H0503B83A, H0503H84B, H0507B85A, H0507C86A, H0507C87A, H0507F87B, H0507H81A, H0507H82B, H0555H74G
F1349
F1349 HEX NUT, S.S., 5/16 - 18
H0202B80L, H0202B81M, H0202H79K, H0202H82N, H0252B83G, H0257F88A, H0257F88B, H0306B80C, H0307H81D, H0350H78L, H0351H76K, H0352F90B, H0352F90C, H0352H77H, H0352H79L, H0353E91A, H0353E91B, H0353H78K, H0353H80M, H0353H81N, H0353H82P, H0355D89A, H0356F89
F1715
F1715 HEX BOLT, 1/4 - 28 X 9/16
H0257F88A, H0257F88B, H0352F90B, H0352F90C, H0353E91A, H0353E91B, H0355D89A, H0356F89B, H0356H75F, H0357F89C, H0357G90A, H0456B78J, H0456B79K, H0456B80L, H0457H82N, H0457H83P, H0507H81A, H0507H82B, H0555H74G, H0558H79L, H0559B80M, H0559H77H, H0559H77
F1738
F1738 HEX JAM NUT, 3/8 - 24
H0352H77H, H0352H79L, H0353H78K, H0353H80M, H0353H81N, H0353H82P, H0356H75F, H0456B78J, H0503B83A
F1822
F1822 HEX BOLT 5/16 - 18 X 7/8
H040312RD, H040312SD, H0407E92C, H0507A90A, H0507A90B, H0507A90C, H0507A90D, H0507A91A, H0507A91C, H0507A92A, H0507C87C, H0507E91B, H0507F87B, H0558H79L, H0559B80M, H0559H77H, H0559H77J, H0559H78K, H0559H80N, H0559H83R, H0606H84A, H0659B78B, H0700H79
F1914
F1914 HEX HD SCREW, 1/4 - 20 X 3/4
H005201SD, H005201TS, H005201UD, H0060B76A, H0062H79M, H0064H78D, H0082H76G, H0082H79K, H0091B80B, H0091H79A, H009201SD, H009201UD, H009201US, H0092B80G, H0092H79F, H0092H81J, H0095B80F, H0101B78A, H0102H76C, H0102H78E, H0121B79A, H0122H79E, H0125H79
F2041
F2041 HEX M. SCREW, 10 - 24 X 3/8
H0042081C, H0042082D, H0042083E, H0042B78C, H0042B80G, H0042C84L, H0042C87A, H0042H77B, H0042H78D, H0042H78E, H0042H79F, H0043F85A, H005201RS, H005201SD, H005201TS, H005201UD, H0052C88A, H0060B78B, H0060H79C, H0060H80D, H0062B78J, H0062H79K, H0064H80
F1425
F1425 HEX CAP SCREW, 1/4 - 20 X 2 5/8
H0352F90B, H0352F90C, H0353E91A, H0353E91B, H0357F89C, H0357G90A, H0756H80F, H0756H81G, H0756H82H, H0758H80B, H0758H82E, H0850H79A, H0850H80A, H0850H81C, H0851H79A, H0851X88A, H0853F88B, H0853F89C, H0853F89E, H0855H79A, H0856A89A, H0856B80H, H0856C87