Cummins 4BTA3.9-G Engine Spare Parts List
The Cummins 4BTA3.9-G engine is a 4-cylinder diesel engine widely used for generator sets and industrial power applications. This spare parts list includes common maintenance parts, overhaul parts, fuel system components, cooling system parts, lubrication parts, and electrical parts. Quantities are listed based on one complete engine set.
Common Maintenance Parts
| Part Name |
Part Number |
Qty Per Engine |
| Oil Filter |
LF9009 |
1 |
| Fuel Filter |
FF9007-07 |
1 |
| Air Filter |
AC9243ZZ |
1 |
| Fuel Filter Element |
3931063 |
1 |
| Oil Filter Cartridge |
3908616 |
1 |
| Fuel Filter Head |
3936315 |
1 |
Engine Block and Main Components
| Part Name |
Part Number |
Qty Per Engine |
| Cylinder Block |
C3903920 |
1 |
| Engine Block |
ABP9782-02-1ZZ |
1 |
| Cylinder Head |
3967432 |
1 |
| Crankshaft |
C3929036 |
1 |
| Camshaft |
3929039 |
1 |
| Connecting Rod |
3942581 |
4 |
| Piston |
A3908179ZZ |
4 |
| Piston Ring Set |
C3932520 |
4 |
| Piston Pin |
4991283 |
4 |
| Piston Cooling Nozzle |
3937214 |
4 |
| Main Bearing |
C3929016 |
4 |
| Thrust Bearing |
3927772 |
1 |
Gasket and Sealing Parts
| Part Name |
Part Number |
Qty Per Engine |
| Cylinder Head Gasket |
3283333 |
1 |
| Valve Cover Gasket |
3930906 |
1 |
| Oil Pan Gasket |
3938162 |
1 |
| Push Rod Cover Gasket |
3283767 |
1 |
| Turbocharger Gasket |
3901356 |
1 |
| Filter Head Gasket |
C3942915 |
1 |
| Sealing Washer |
3920773 |
As Required |
Fuel System Parts
| Part Name |
Part Number |
Qty Per Engine |
| Fuel Injection Pump |
4946527 |
1 |
| Fuel Transfer Pump |
FS90250 |
1 |
| Fuel Injector |
4982695 |
4 |
| Fuel Manifold |
C4934018 |
1 |
| Fuel Drain Tube |
C4932532 |
1 |
| Fuel Drain Tube |
C4988331 |
1 |
| Injector Fuel Supply Tube |
C4982695 |
1 |
| Injector Fuel Supply Tube |
C4983775 |
1 |
| Fuel Supply Tube |
5270815 |
1 |
| T Connector |
C4932608 |
1 |
Lubrication System Parts
| Part Name |
Part Number |
Qty Per Engine |
| Oil Pump |
5346429 |
1 |
| Oil Pan |
OP9004-04 |
1 |
| Oil Level Gauge |
LG90372 |
1 |
| Oil Dipstick |
4937482 |
1 |
| Oil Pressure Sensor |
EO9181 |
1 |
| Oil Temperature Sensor |
EO9180 |
1 |
Cooling System Parts
| Part Name |
Part Number |
Qty Per Engine |
| Water Pump |
WP9031 |
1 |
| Water Pump |
3285410 |
1 |
| Thermostat |
4930315 |
1 |
| Water Inlet Tube |
3971102 |
1 |
| Water Outlet Tube |
3971103 |
1 |
| Radiator Hose |
3918612 |
1 |
Air Intake and Exhaust System Parts
| Part Name |
Part Number |
Qty Per Engine |
| Turbocharger |
4048417 |
1 |
| Intake Valve |
4995554 |
4 |
| Exhaust Valve |
4994143 |
4 |
| Exhaust Manifold |
4988420 |
1 |
| Air Transfer Pipe |
4987913 |
1 |
Electrical Parts and Sensors
| Part Name |
Part Number |
Qty Per Engine |
| Alternator |
EE9314ZZ |
1 |
| Starter Motor |
3916854 |
1 |
| Temperature Sensor |
4994283 |
1 |
| Oil Temperature Sensor |
EO9180 |
1 |
| Signal Device |
EO9144 |
1 |
| Wiring Harness |
4932505 |
1 |
Flywheel, Housing and Mounting Parts
| Part Name |
Part Number |
Qty Per Engine |
| Flywheel |
4939064 |
1 |
| Gear Housing |
5267782 |
1 |
| Gear Cover |
4991493 |
1 |
| Front Engine Support |
10NMX-03-2ZZ |
1 |
| Engine Mount |
4988361 |
2 |
| Vibration Damper |
DA9208 |
1 |
Valve Train Parts
| Part Name |
Part Number |
Qty Per Engine |
| Valve Tappet |
3931623 |
8 |
| Intake Valve |
4995554 |
4 |
| Exhaust Valve |
4994143 |
4 |
| Push Rod |
3904679 |
8 |
| Rocker Lever |
3934920 |
8 |
Why Choose Genuine Cummins 4BTA3.9-G Parts
Using genuine or high-quality replacement parts helps maintain stable engine performance, reduce downtime, and extend service life. For generator set engines, reliable parts are especially important for continuous power supply and emergency standby applications.
Before Ordering
Please confirm the engine model, engine serial number, CPL number, and part number before ordering. Some parts may vary depending on the exact Cummins 4BTA3.9-G configuration, generator set application, and production batch.
Contact Us for Cummins 4BTA3.9-G Engine Parts
We supply Cummins 4BTA3.9-G engine spare parts, maintenance parts, overhaul kits, fuel system parts, cooling system parts, electrical components, and generator set engine parts. Contact us with your engine serial number or required part number for accurate quotation and fast delivery.
Dongfeng Cummins Engine Co., Ltd. (hereinafter referred to as "Dongfeng Cummins" or the "Company") is located in the High-tech Industrial Development Zone of Xiangyang City, Hubei Province. It is a 50:50 joint venture established by Dongfeng Motor Co., Ltd. Modern medium and heavy engine manufacturing company. In 1986, Dongfeng Motor Corporation and Cummins Corporation of the United States signed a B series engine production license agreement. In June 1996, Dongfeng Cummins Engine Co., Ltd. was established with a registered capital of more than 100 million US dollars, an area of 270,000 square meters, and more than 2,200 employees.
The company's products include B, C, D, L, Z series platform Cummins engines, which can meet the national V, national VI and non-road national IV emission standards for vehicles. The engine displacement is 3.9L, 4.5L, 5.9L, 6.7L, 8.3L, 8.9L, 9.5L, 13L, power coverage range is 80-680 horsepower, widely used in light, medium and heavy trucks, medium and high-grade intercity buses, large and medium-sized buses, construction machinery, marine main and auxiliary engines, generator sets, etc. The products are widely praised by users at home and abroad for their advanced economy, power, reliability, durability and environmental safety. Cummins is a power solution provider, and Dongfeng is a super-large Chinese auto company. Dongfeng Cummins will rely on the strong support of Cummins' global production system in the fields of product development, manufacturing, quality and management to continuously improve the competitiveness of enterprises and products, and provide customers with high-quality engines.
Through integration and optimization, Dongfeng Cummins has reached an annual production capacity of 230,000 engines, and through rolling technology introduction and self-development strategy, it has gradually achieved simultaneous development with the European and American markets in product development, thereby leaping to improve China's medium and heavy engines. technical level. The company has developed a new generation of 13-liter fully electronically controlled heavy-duty truck engines with all independent intellectual property rights, with a power range of 430-600 horsepower.
"Driving the world forward and realizing the most beautiful life" is the mission of the company. We have the courage to assume social responsibilities and be a socially responsible corporate citizen. The company produces products that meet the national emission standards in strict accordance with the requirements of production consistency, casts green environmental protection into the brand, and is committed to creating a green and environmentally friendly clean power.