4W5481 Pump G for CAT 3406, SR4, 621B & more

  • New Pump G Fuel Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

Buy with Confidence: All parts are covered by our warranty

$401.57

4.7

(Site rating)
In Stock | Ships Out Today | Order By 3pm ET
SKU
4W5481CTP
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Description for 4W5481 Fuel Pump

This aftermarket Caterpillar 4W5481 Fuel Pump is built to meet U.S. OEM specifications for durability and performance. At Propel Parts, we perform strict quality checks to ensure it fits and functions like your original Caterpillar Fuel Pump.
Direct Replacement: Engineered for a precise fit in Caterpillar equipment.
OEM-Spec Quality: Manufactured to match the performance of your original part.
Tested Reliability: Strict quality checks are performed before shipping.

Specification for 4W5481 Fuel Pump

Replacement Part Number(s): 4W-5481, 0R3379
Specifications: Aftermarket Part | US OEM Specs.
Shipping: Same Day (Weekdays) | Order by 3pm.
Warranty: Unlimited Mileage | 1 Year Warranty.
Core: No Core Required | No Core Charge.
Weight: 6.15
Condition: New

Exact Fit Guarantee for 4W5481 Fuel Pump

Looking for a reliable replacement Caterpillar 4W5481 Fuel Pump ? Order with confidence through our Exact Fit Guarantee.
Verified Fit: Before we ship, we check your part against CAT SIS (Caterpillar Service Information System) to confirm it's the correct match for your machine.
Peace of Mind: If it isn't the right fit, we'll contact you with the correct Caterpillar part number before your order goes out.
Exclusive Guarantee: Enroll in our Exact Fit Guarantee at checkout to ensure you get the part you need the first time.
More Information
Models 3306, 3406, SR4, 621B, 623B, 627B
Dimensions 6.30x6.30x6.30
Customer Reviews
  1. 100%
    A Delay Handled the Right Way
    Honestly, if I were in Miami like my shipment was, I wouldn?t have been in a hurry to ship out either. I was frustrated at first ? delays cost me time on the job ? but Propel Parts stepped up.

    Deb, Daniel and the team owned the mistake, kept the communication clear, and graciously refunded my shipping costs without making it a hassle. That kind of accountability is rare these days, and I genuinely appreciated how they handled it.

    Things don?t always go perfectly, but these folks proved they?re more interested in doing right by their customers than just pushing parts out the door. Solid company, solid people.

    ? Jimmy Spong
    Hartco Mobile Welding

    P.S. Incredible quality on the pin as well. I had to do some custom modifying, and let?s just say the case hardening was ? well ? hard. Great Stuff! Thank you.
  2. 100%
    100% recommend it is a good parts by par for five years and everything is good
  3. 100%
    Great customer service answered email question quickly.
  4. 100%
    La mejor experiencia y calidad
  5. 100%
    Excelente atencion y refacciones de calidad
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Frequently Asked Questions

Product

What is the function of this 4W5481 Pump G?

The 4W5481 Pump G helps supply consistent fuel flow to the engine, ensuring smooth performance and efficient operation of your equipment under various load conditions.

How to install this 4W5481 Pump G?

Please refer to the following instructions to install
1. Before installation, make sure the engine is cool and the fuel lines are depressurized.
2. Remove the old pump carefully, clean the mounting area, and position the new unit in place.
3. Secure it with proper fittings and check for any leaks once installed. 
It’s always best to follow your equipment’s service manual or seek professional assistance.

Which equipment models are compatible with this part?

This fuel pump fits models such as 3306, 3406, SR4, 621B, 623B, 627B, and several others. Compatibility may vary, so it’s advised to verify your model number before ordering.

Does this part meet quality and performance standards?

Yes, this 4W5481 fuel pump is designed to OEM specifications, ensuring reliable fuel delivery and long-lasting performance in demanding work environments.

How can I confirm if this fuel pump fits my machine?

You can check your equipment’s part number in the service manual or compare it with your existing pump. If you’re unsure, our support team can help verify compatibility before purchase. If you are still unsure, reach out to Propel Parts, our team will be happy to help you verify if this part fits your equipment.

What are the signs that indicate this part needs replacement?

Common symptoms include irregular fuel flow, engine stalling, poor fuel efficiency, or difficulty starting. Replacing the pump promptly can prevent engine damage or performance loss.

Is this product compatible with all metals?

Yes, it’s formulated to work effectively on a wide range of metals, including steel, stainless steel, and aluminum. Always check the service manual or consult a technician for specific material compatibility. If you are still unsure, reach out to Propel Parts, our team will be happy to help you verify if this part fits your equipment.

How should I maintain this fuel pump for long-term use?

To maintain this properly, you should:
1. Keep your fuel system clean by using quality filters and draining water or debris regularly. 
2. Periodic inspections and timely maintenance help extend the pump’s service life.

Questions About this Part?
Have a question about fit, compatibility, shipping, warranty, or returns?

This 4W5481 Fuel Pump is compatible with the following models:
3306, 3406, SR4, 621B, 623B, 627B & more...

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.

Same Day Shipping

Orders placed weekdays, by 3pm ET, ship out same day.

United States & Canada

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International Shipping

We have served customers in over 90 countries. Click Check Delivery Time .

Tracking Number

Tracking will be emailed within 24-48 hours of your order.