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New CAT 4P9830 Plunger & Barrel Caterpillar Aftermarket for CAT
- Plunger & Barrel Replacement suitable for Caterpillar Equipment
- Made to USA Specifications
Buy with Confidence: All parts are covered by our warranty
Exact Fit Guarantee
This part is guaranteed to fit your machine.
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Description for 4P9830 Plunger And Barrel
â–¶Specification for 4P9830 Plunger And Barrel
â–¶Exact Fit Guarantee for 4P9830 Plunger And Barrel
â–¶| Models | 3306, D250E, D250E II, D25C, D25D, D300B, D300D, D300E |
|---|---|
| Dimensions | 4.53x2.17x2.17 |
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At the beginning, I experienced significant delays and communication issues regarding my order, which honestly caused serious concern because the parts were urgently needed for an important project.
However, after continuous follow-up, the Propel Parts team handled the matter professionally, provided shipment tracking, and the parts finally arrived successfully.
I especially appreciate their willingness to communicate, acknowledge the issue, and continue working toward resolving the situation.
In international business, delays can sometimes happen, but what matters is the final commitment to resolving the issue properly.
Thank you to Daniel and the team, and hopefully future transactions will be smoother for both sides. -
Great customer service.
Prompt , knowledgeable and friendly service. -
helpful and professional.
quick and professional service. -
Excellent experience.
Mike has been very helpful. I am looking forward to keep doing business with them -
Excellent customer service and parts.
You guys have always gave excellent customer service!!! Very prompt responsiveness. Warranty services are superb. I have been using them for quite awhile now on equipment I have. Always great prices for parts! Keep up the great work guy's
Frequently Asked Questions
What is the Caterpillar 4P9830 plunger and barrel assembly used for?
A: The 4P9830 plunger and barrel is a precision fuel injection pump component used in Caterpillar diesel engines. It creates the high pressure needed to deliver fuel accurately to the injectors, directly impacting engine power, efficiency, and emissions.
How do I know when the plunger and barrel needs replacement?
A: Signs of wear include loss of engine power, uneven cylinder performance, increased fuel consumption, difficulty starting, and white or black smoke. When injection pressure drops due to worn plunger and barrel sets, overall engine performance suffers significantly.
Is this a high-quality aftermarket or remanufactured part?
A: The 4P9830 is a high-quality aftermarket plunger and barrel assembly that meets or exceeds OEM specifications for dimensional accuracy, material hardness, and injection pressure performance.
Which engines is the 4P9830 compatible with?
A: This plunger and barrel is designed for specific Caterpillar fuel injection pump models. Always verify fitment using your engine's model and serial number. If you are still unsure, reach out to Propel Parts ??? our team will be happy to help you verify compatibility.
Browse our full range of fuel system parts for plunger & barrel sets, nozzles, and other fuel injection components for CAT engines.
Does the plunger and barrel need to be matched as a pair?
A: Yes. Plunger and barrel assemblies are precision-matched pairs. The clearances between them are critical for correct injection pressure. Never mix individual components from different sets, as this can lead to injection failures and engine damage.
Can I install this part myself?
A: Fuel injection pump work requires precision and specialized knowledge. It is recommended to have this component installed by a qualified diesel injection specialist or technician familiar with Caterpillar fuel systems. Incorrect installation can damage the injection pump.
What warranty comes with the 4P9830?
A: All Propel Parts products include a 12-month warranty against manufacturing and material defects. Same-day shipping is available for weekday orders placed before 3pm ET.
This 4P9830 Plunger And Barrel is compatible with the following models:
3306, D250E, D250E II, D25C, D25D, D300B, D300D, D300E & more...
Shipping
We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.
Easy Returns
Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.
Warranty
Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
Exact Fit Guarantee®
The right part — or we'll make it right.
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Place your order, then send us your serial number before it ships.
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1 YEAR UNLIMITED WARRANTY
ORDER BY 3PM EST. EXCL. WEEKEND
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EASY RETURNS & FAST REFUNDS
