4P9830 CAT 3306 Fuel Injection Pump Plunger For Cater-Pillar Excavator Diesel Pump Parts

4P9830 CAT 3306 Fuel Injection Pump Plunger For Cater-pillar Excavator Part

The 4P9830 is a high-precision fuel injection plunger and barrel assembly designed for Cater-pillar diesel engine fuel systems. Manufactured with premium alloy steel and strict grinding processes, it offers excellent wear resistance, stable high-pressure fuel delivery, and consistent fuel metering performance. It serves as a reliable OEM-equivalent replacement for fuel injection pumps, ensuring proper fuel pressure, efficient combustion, improved engine power, and reduced fuel consumption. This component is widely applied in construction machinery, marine powertrains, and industrial engines. It guarantees perfect fit, stable operation, and extended service life under heavy-duty working conditions, making it a preferred choice for engine maintenance and repair.

Frequently Asked Questions
1. What engine does 4P9830 fit?
The 4P9830 plunger & barrel assembly is designed for Cater-pillar 3306, 3306B, and 3306C diesel engines.
It also fits Cat construction/industrial equipment such as the 330, 330B, 330C excavators, 814B/814F wheel dozers, 12H/14H motor graders, and 572R pipelayers.
It serves as a direct replacement for fuel injection pumps in these engines, ensuring precise fuel metering and stable high-pressure delivery.
 
2. Is 4P9830 compatible with CAT 3412?
No, the 4P9830 is not compatible with the CAT 3412 engine. The 3412 requires a different plunger model, such as the 1086631 (or 2W3414), which is specifically engineered for the 3412, 3406B, and 3406C engines. Using 4P9830 in a 3412 will result in improper fit, fuel pressure issues, and potential engine damage.
3.Does 4P9830 reduce smoke?
Yes, installing a new, high-quality 4P9830 plunger and barrel assembly can effectively reduce black or white smoke from the engine.
This part controls fuel pressure and injection volume. A worn plunger causes poor fuel atomization, incomplete combustion, and excessive smoke. By restoring precise fuel metering and stable high-pressure delivery, the 4P9830 improves combustion efficiency, lowers exhaust smoke, and helps restore normal engine performance.
 

Certification & Exhibition

Shipping Information
Delivery Time: 3-5 working days for samples; 5-14 working days for bulk orders
Door-to-Door FedEx service for samples
Air or Sea freight for bulk orders
Flexible shipping methods and freight forwarder options available