4N9539 CARTRIDGE ASSEM. Caterpillar parts
D379, D379A
Rating:
Alternative (cross code) number:
CA4N9539
4N-9539
4N9539
CA4N9539
4N-9539
4N9539
Weight: 17 pounds 7 kg.
INDUSTRIAL ENGINE, MARINE ENGINE,
Related part:
4N9539
CARTRIDGE GP
0R5898
R
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$828.09
21 Aug 2022
US: QUALITY PARTS
Made to fit 4N9539 Cartridge A Caterpillar
G&T Engine Parts 4N9539 Caterpillar Cartridge A || Meets OEM Specs for Fit and Performance || This is a new item 4N9539 Cartridge A Caterpillar || Items are sold by part number only. Picture is for illustration purposes and the part or parts may be different in color or quantity. || Use of any OEM manufacturer name is not intended to represent any relationship between the two companies, instead it indicates that we sell replacement parts that are compatible with OEM components.
G&T Engine Parts 4N9539 Caterpillar Cartridge A || Meets OEM Specs for Fit and Performance || This is a new item 4N9539 Cartridge A Caterpillar || Items are sold by part number only. Picture is for illustration purposes and the part or parts may be different in color or quantity. || Use of any OEM manufacturer name is not intended to represent any relationship between the two companies, instead it indicates that we sell replacement parts that are compatible with OEM components.
$682.82
05 Jan 2021
-: -
Made to fit 4N9539 Cartridge A Caterpillar
4N9539 Caterpillar Cartridge A || Meets OEM Specs for Fit and Performance || This is a new item 4N9539 Cartridge A Caterpillar || Items are sold by part number only. Picture is for illustration purposes and the part or parts may be different in color or quantity. || Use of any OEM manufacturer name is not intended to represent any relationship between the two companies, instead it indicates that we sell replacement parts that are compatible with OEM components.
4N9539 Caterpillar Cartridge A || Meets OEM Specs for Fit and Performance || This is a new item 4N9539 Cartridge A Caterpillar || Items are sold by part number only. Picture is for illustration purposes and the part or parts may be different in color or quantity. || Use of any OEM manufacturer name is not intended to represent any relationship between the two companies, instead it indicates that we sell replacement parts that are compatible with OEM components.
$620.34
20 Apr 2019
CATERPILLAR AFTERMARKET: CATERPILLAR AFT
Caterpillar Cartridge A 4N9539 New
Number on catalog scheme:
7
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Information:
Probable Causes
Engine derate or active codes
Electrical connectors
Low compression (cylinder pressure)
Individual malfunctioning cylinder
Valve lash
Faulty fuel injector nozzle
Throttle signal
Fuel supply
Air inlet and exhaust systemRecommended Actions
Table 1
Troubleshooting Test Steps Value Results
1. Check for Engine Derate or Active Codes.
A. Some engine monitoring parameters that trigger an engine derate do not produce an event code. Connect Cat® Electronic Technician (ET) in order to check for a derate of the engine.
B. Certain diagnostic codes may cause poor performance. Use Cat ET to check for active codes and for logged codes.
Engine derate
Diagnostic codes
Result : The engine derate and/or diagnostic codes are OK.
Proceed to Test Step 2.
Result : The engine derate and/or diagnostic codes are NOT OK.
Repair : Troubleshoot any active diagnostic codes that are present.
If the problem is not resolved, proceed to Test Step 2.
2. Check the Electrical Connectors.
A. Check for correct installation of the J1/P1 ECM connector.
Electrical connectors
Result : The electrical connectors are OK.
Proceed to Test Step 3.
Result : The electrical connectors are NOT OK.
Repair : Refer to Troubleshooting, "Electrical Connectors - Inspect".
If the problem is not resolved, proceed to Test Step 3.
3. Check for Low Compression Cylinder Pressure.
A. Perform a compression test. Refer to Systems Operation, Testing and Adjusting, "Compression - Test ".
B. If low compression is noted on any cylinders, investigate the cause and rectify the cause.
Possible causes of low compression are shown in the following list:
- Faulty piston
-Faulty piston rings
- Worn cylinder bores
- Worn valves
- Faulty cylinder head gasket
- Damaged cylinder head
Low compression
Result : The cylinder pressure is OK.
Proceed to Test Step 4.
Result : The cylinder pressure is NOT OK.
Repair : Perform all necessary repairs.
If the problem is not resolved, proceed to Test Step 4.
4. Check for Individual Malfunctioning Cylinders.
A. With the engine speed at a fast idle, loosen the high-pressure fuel line to the fuel injector of number one cylinder. If there is any reduction in engine speed, tighten the high-pressure fuel line to the fuel injector.
B. Individually repeat this procedure for each fuel injector.
Cylinders
Result : The cylinders are OK.
Proceed to Test Step 5.
Result : The cylinders are NOT OK.
Repair : Repair the malfunctioning cylinder as necessary.
If the problem is not resolved, proceed to Test Step 5.
5. Check the Valve Lash.
A. Check valve lash on misfiring cylinder.
Valve lash
Result : The valve lash is OK.
Proceed to Test Step 6.
Result : The valve lash is NOT OK.
Repair : Refer to Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust" for the correct procedure.
If the problem is not resolved, proceed to Test Step 6.
6. Check for a Faulty Fuel Injector Nozzle.
A. Remove the suspect fuel injection nozzle.
B. Test the nozzle by using the 5P-4150 Nozzle Testing Group. Refer to Systems Operation, Testing and Adjusting, "Fuel System" for the proper testing procedure.
Fuel injector nozzle
Result : The fuel injector nozzles are OK.
Proceed to Test Step 7.
Result : The fuel injector nozzles are NOT OK.
Repair : Replace the fuel injector nozzles, as needed.
If the problem is not resolved, proceed to Test Step 7.
7. Check the Throttle Signal.
A. Monitor the status for "Throttle Position" on Cat ET.
Engine derate or active codes
Electrical connectors
Low compression (cylinder pressure)
Individual malfunctioning cylinder
Valve lash
Faulty fuel injector nozzle
Throttle signal
Fuel supply
Air inlet and exhaust systemRecommended Actions
Table 1
Troubleshooting Test Steps Value Results
1. Check for Engine Derate or Active Codes.
A. Some engine monitoring parameters that trigger an engine derate do not produce an event code. Connect Cat® Electronic Technician (ET) in order to check for a derate of the engine.
B. Certain diagnostic codes may cause poor performance. Use Cat ET to check for active codes and for logged codes.
Engine derate
Diagnostic codes
Result : The engine derate and/or diagnostic codes are OK.
Proceed to Test Step 2.
Result : The engine derate and/or diagnostic codes are NOT OK.
Repair : Troubleshoot any active diagnostic codes that are present.
If the problem is not resolved, proceed to Test Step 2.
2. Check the Electrical Connectors.
A. Check for correct installation of the J1/P1 ECM connector.
Electrical connectors
Result : The electrical connectors are OK.
Proceed to Test Step 3.
Result : The electrical connectors are NOT OK.
Repair : Refer to Troubleshooting, "Electrical Connectors - Inspect".
If the problem is not resolved, proceed to Test Step 3.
3. Check for Low Compression Cylinder Pressure.
A. Perform a compression test. Refer to Systems Operation, Testing and Adjusting, "Compression - Test ".
B. If low compression is noted on any cylinders, investigate the cause and rectify the cause.
Possible causes of low compression are shown in the following list:
- Faulty piston
-Faulty piston rings
- Worn cylinder bores
- Worn valves
- Faulty cylinder head gasket
- Damaged cylinder head
Low compression
Result : The cylinder pressure is OK.
Proceed to Test Step 4.
Result : The cylinder pressure is NOT OK.
Repair : Perform all necessary repairs.
If the problem is not resolved, proceed to Test Step 4.
4. Check for Individual Malfunctioning Cylinders.
A. With the engine speed at a fast idle, loosen the high-pressure fuel line to the fuel injector of number one cylinder. If there is any reduction in engine speed, tighten the high-pressure fuel line to the fuel injector.
B. Individually repeat this procedure for each fuel injector.
Cylinders
Result : The cylinders are OK.
Proceed to Test Step 5.
Result : The cylinders are NOT OK.
Repair : Repair the malfunctioning cylinder as necessary.
If the problem is not resolved, proceed to Test Step 5.
5. Check the Valve Lash.
A. Check valve lash on misfiring cylinder.
Valve lash
Result : The valve lash is OK.
Proceed to Test Step 6.
Result : The valve lash is NOT OK.
Repair : Refer to Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust" for the correct procedure.
If the problem is not resolved, proceed to Test Step 6.
6. Check for a Faulty Fuel Injector Nozzle.
A. Remove the suspect fuel injection nozzle.
B. Test the nozzle by using the 5P-4150 Nozzle Testing Group. Refer to Systems Operation, Testing and Adjusting, "Fuel System" for the proper testing procedure.
Fuel injector nozzle
Result : The fuel injector nozzles are OK.
Proceed to Test Step 7.
Result : The fuel injector nozzles are NOT OK.
Repair : Replace the fuel injector nozzles, as needed.
If the problem is not resolved, proceed to Test Step 7.
7. Check the Throttle Signal.
A. Monitor the status for "Throttle Position" on Cat ET.
Caterpillar parts catalog:
Parts cartridge Caterpillar catalog:
7N8546
CARTRIDGE GP-TURBOCHARGER
D379, D379B, D399
D379, D379B, D399
D342C, D353C, D379, D379A, D398, D398A, G342C, G353D, G379
1P4400
CARTRIDGE ASSEM.
D379, D379A
D379, D379A
4N3957
CARTRIDGE ASSEM.
D379, D379A
D379, D379A
D342C, D379, G3306, G3306B, G353D, G379, G398
1S2500
CARTRIDGE ASSEM.
D353C, D379A, D398A, G342C, G353D, G379
D353C, D379A, D398A, G342C, G353D, G379
6N5541
CARTRIDGE GP
D379, D379B
D379, D379B
1693, 3406, 631C, 657B, 666, 769, 777, 824B, 826B, 983, 992, D348, D9G, D9H
D349, D399
D353C, D398, D398A, D398B
1S2496
CARTRIDGE ASSEM.
977H, D342, D342C
977H, D342, D342C
1673C, 3306, 627B, D6C
D342C, D379, G3306, G3306B, G353D, G379, G398
D342C, D8H
