3790803 MOTOR AS-GOVERNOR Caterpillar parts
303.5E, 304E, 306E, 307E, 308E, 308E CR, 308E SR
Rating:
Alternative (cross code) number:
CA3790803
379-0803
3790803
CA3790803
379-0803
3790803
Weight: 1 pounds 0 kg.
MINI HYD EXCAVATOR,
You can buy:
US$115.00
28 May 2025
FridayParts
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IMIFAFTAbT 379-0803 525-4479 3790803 5254479 Throttle Motor Fits for Caterpillar C3.3B Engine 303.5 304E 306E 307E 308E 308ESR Excavator
IMIFAFTAbT Product Name: 379-0803 525-4479 3790803 5254479 Throttle Motor || Part number: 379-0803 525-4479 3790803 5254479 || Fits for Caterpillar C3.3B Engine 303.5 304E 306E 307E 308E 308ESR Excavator || 6 PCS Fuel injector || Note: Please confirm that the product shown in the part number is what you need If you cannot confirm you can provide your engine serial number and nameplate
IMIFAFTAbT Product Name: 379-0803 525-4479 3790803 5254479 Throttle Motor || Part number: 379-0803 525-4479 3790803 5254479 || Fits for Caterpillar C3.3B Engine 303.5 304E 306E 307E 308E 308ESR Excavator || 6 PCS Fuel injector || Note: Please confirm that the product shown in the part number is what you need If you cannot confirm you can provide your engine serial number and nameplate
Excavator Control Motor 379-0803 525-4479 Throttle Motor E303.5E E306 E307 E308
Welchanparts 【Part number】379-0803 525-4479 || 【Durable】Good quality,Durable,Long service life,Hard to damage || 【NOTICE】Please make sure the part number is what you need || 【Fast Delivery】We Will Send it Within 7 working days when order confirmed.You may get it within 3-6 days depend on DHL or UPS. || 【Rapid-response and Five-star after sale Service】We give 6 Months warranty for this part. We offer Replacement or return service if there Is any Quality problem of products during warranty time.
Welchanparts 【Part number】379-0803 525-4479 || 【Durable】Good quality,Durable,Long service life,Hard to damage || 【NOTICE】Please make sure the part number is what you need || 【Fast Delivery】We Will Send it Within 7 working days when order confirmed.You may get it within 3-6 days depend on DHL or UPS. || 【Rapid-response and Five-star after sale Service】We give 6 Months warranty for this part. We offer Replacement or return service if there Is any Quality problem of products during warranty time.
FridayParts Throttle Motor Governor 379-0803 3790803 with Single Cable 5 Pins Plug Competiable with Caterpillar CAT Mini Hydraulic Excavator 303.5E 304E 306E 307E 308E 308E CR 308E SR
FP FRIDAYPARTS Part Name:Throttle Motor || Part Number:3790803 || Application:For Caterpillar Excavator 303.5E 304E 306E 307E 308E 308E CR 308E SR || It has Single Cable 5 Pins Plug || Warranty:3 month Warranty
FP FRIDAYPARTS Part Name:Throttle Motor || Part Number:3790803 || Application:For Caterpillar Excavator 303.5E 304E 306E 307E 308E 308E CR 308E SR || It has Single Cable 5 Pins Plug || Warranty:3 month Warranty
Number on catalog scheme:
4
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Compatible equipment models: 3790803:
Information:
The logic for Illustration 4 is shown in Table 7.
Table 7
Synchronization
Status No Synchronization Synchronization
Port Engine Synchronization Input
1 Open Low
Engine Synchronization Input
2 Open Open
Active Throttle Primary Secondary
Starboard Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Primary
Center Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Secondary Illustration 5 shows the wiring for an installation of three engines. Illustration 5 shows the starboard engine as the master throttle control.
Illustration 5 g00996418
Wiring for the throttle in a triple engine installation (starboard as master throttle)
The logic for Illustration 5 is shown in Table 8.
Table 8
Synchronization
Status No Synchronization Synchronization
Port Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Secondary
Starboard Engine Synchronization Input
1 Open Low
Engine Synchronization Input
2 Open Open
Active Throttle Primary Primary
Center Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Secondary Illustration 6 shows the wiring for an installation of three engines. Illustration 6 shows the fourth throttle as the master throttle control.
Illustration 6 g00996419
Wiring for the throttle in a triple engine installation (fourth throttle as master throttle)
The logic for Illustration 6 is shown in Table 9.
Table 9
Synchronization
Status No Synchronization Synchronization
Port Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Secondary
Starboard Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Secondary
Center Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Secondary Table 10 shows the logic for the ECM in a triple engine installation. Use the logic in Table 10 in order to synchronize multiple engines to a single throttle control.
Table 10
Engine Synchronization Input Active Throttle Port
Starboard
Center
Synchronization
Status
(same for all)
1 2
Open Open Primary No Synchronization
Open Low Secondary Synchronization
Low Open Primary Synchronization
Low Low Primary Invalid If you are experiencing problems with the synchronization of the throttle controls, verify that the wiring matches the configurations for your application. Verify that the following parameters are programmed in order to match the configurations for your application.
Number of synchronized engines
Engine location
Secondary throttleThe probable root causes are listed below:
Vessel wiring
Faulty synchronizing switchCheck the wiring for the following problems: damage, abrasion, corrosion and incorrect attachments.
Check the wiring for continuity or shorts between the synchronizing switch and the ECM.
Check the wiring for continuity or shorts between the throttle position sensor and the ECM.
Check the wiring for continuity or shorts between the ECM connectors. Check the synchronizing switch for proper operation.
Disconnect the wiring from the synchronizing switch.
Use a voltmeter to check the resistance across the contacts of the synchronizing switch as the synchronizing switch is turned to different positions.
Table 7
Synchronization
Status No Synchronization Synchronization
Port Engine Synchronization Input
1 Open Low
Engine Synchronization Input
2 Open Open
Active Throttle Primary Secondary
Starboard Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Primary
Center Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Secondary Illustration 5 shows the wiring for an installation of three engines. Illustration 5 shows the starboard engine as the master throttle control.
Illustration 5 g00996418
Wiring for the throttle in a triple engine installation (starboard as master throttle)
The logic for Illustration 5 is shown in Table 8.
Table 8
Synchronization
Status No Synchronization Synchronization
Port Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Secondary
Starboard Engine Synchronization Input
1 Open Low
Engine Synchronization Input
2 Open Open
Active Throttle Primary Primary
Center Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Secondary Illustration 6 shows the wiring for an installation of three engines. Illustration 6 shows the fourth throttle as the master throttle control.
Illustration 6 g00996419
Wiring for the throttle in a triple engine installation (fourth throttle as master throttle)
The logic for Illustration 6 is shown in Table 9.
Table 9
Synchronization
Status No Synchronization Synchronization
Port Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Secondary
Starboard Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Secondary
Center Engine Synchronization Input
1 Open Open
Engine Synchronization Input
2 Open Low
Active Throttle Primary Secondary Table 10 shows the logic for the ECM in a triple engine installation. Use the logic in Table 10 in order to synchronize multiple engines to a single throttle control.
Table 10
Engine Synchronization Input Active Throttle Port
Starboard
Center
Synchronization
Status
(same for all)
1 2
Open Open Primary No Synchronization
Open Low Secondary Synchronization
Low Open Primary Synchronization
Low Low Primary Invalid If you are experiencing problems with the synchronization of the throttle controls, verify that the wiring matches the configurations for your application. Verify that the following parameters are programmed in order to match the configurations for your application.
Number of synchronized engines
Engine location
Secondary throttleThe probable root causes are listed below:
Vessel wiring
Faulty synchronizing switchCheck the wiring for the following problems: damage, abrasion, corrosion and incorrect attachments.
Check the wiring for continuity or shorts between the synchronizing switch and the ECM.
Check the wiring for continuity or shorts between the throttle position sensor and the ECM.
Check the wiring for continuity or shorts between the ECM connectors. Check the synchronizing switch for proper operation.
Disconnect the wiring from the synchronizing switch.
Use a voltmeter to check the resistance across the contacts of the synchronizing switch as the synchronizing switch is turned to different positions.
Caterpillar parts catalog:
Parts motor Caterpillar catalog:
303.5D, 303.5E, 303C CR
303.5C, 304D CR, 304E
2658752
MOTOR & MTG GP-SWING
303.5C, 303.5D, 303.5E, 304D CR, 304E
303.5C, 303.5D, 303.5E, 304D CR, 304E
2813052
MOTOR GP-SWING
303.5C, 303.5D, 303.5E, 304D CR, 304E
303.5C, 303.5D, 303.5E, 304D CR, 304E
305.5E, 306E
307E, 308E
303.5C, 303.5D, 303.5E, 303C CR, 303E CR, 304C CR, 304D CR, 304E, 305.5D, 305.5E, 305C CR, 305D CR, 305E
2758629
MOTOR AS-WINDOW WIPER
303.5C, 303.5D, 303.5E, 303C CR, 303E CR, 304C CR, 304D CR, 304E, 305.5D, 305.5E, 305C CR, 305D CR, 305E
303.5C, 303.5D, 303.5E, 303C CR, 303E CR, 304C CR, 304D CR, 304E, 305.5D, 305.5E, 305C CR, 305D CR, 305E
2743537
MOTOR AS
305.5, 305.5E, 306, 306E
305.5, 305.5E, 306, 306E
3820472
MOTOR AS
307E, 308E, 308E CR, 308E SR, 308E2 CR
307E, 308E, 308E CR, 308E SR, 308E2 CR
4191293
MOTOR AS-WINDOW WIPER
308E, 308E2 CR
308E, 308E2 CR
4191284
MOTOR AS-WINDOW WIPER
308E CR, 308E SR
308E CR, 308E SR
3842465
MOTOR-WIPER
302.7D
302.7D
2253890
MOTOR GP-GEROTOR
302.2D, 302.4D, 302.7D, A7B
302.2D, 302.4D, 302.7D, A7B
3860595
MOTOR GP-TRAVEL
302.7D
302.7D
3860831
MOTOR GP-SWING
302.7D
302.7D
3792852
MOTOR GP-SWING
301.4C, 301.7D CR
301.4C, 301.7D CR
312D2, 312D2 GC, 312D2 L, 313D2, 313D2 LGP, 318D2 L
4202400
MOTOR AS
314E CR, 314E LCR
314E CR, 314E LCR
4202395
MOTOR AS
314E CR, 314E LCR
314E CR, 314E LCR
4191293
MOTOR AS-WINDOW WIPER
308E, 308E2 CR
308E, 308E2 CR
3820472
MOTOR AS
307E, 308E, 308E CR, 308E SR, 308E2 CR
307E, 308E, 308E CR, 308E SR, 308E2 CR
305.5E, 305E