New 3P7958 Pump G Replacement suitable for CAT FB518, 518, 518C, 528, 528B, 530B, 528, 3304, 3306 and more

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

Buy with Confidence: All parts are covered by our warranty

$612.95
In Stock • Ships Today • Order By 3pm ET
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SKU
3P7958CTP
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Description for 3P7958 Gear Pump

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This aftermarket Caterpillar 3P7958 Gear 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 Gear 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 3P7958 Gear Pump

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Replacement Part Number(s): 3P-7958
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: 36.20 LBS | 16.42 KG
Dimensions: 11.02 x 9.45 x 7.09 (inches)
Condition: New

Exact Fit Guarantee for 3P7958 Gear Pump

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Looking for a reliable replacement Caterpillar 3P7958 Gear 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 518, 518C, 528, 528B, 530B, FB518, 3304, 3306
Dimensions 11.02x9.45x7.09
Customer Reviews
  1. 100%
    Very thorough ! Confirmed order and great communications.
  2. 100%
    Great place for Cat parts!
    Had some shipping difficulties, but everything was made right. Parts were perfect and an excellent price. Thanks!
  3. 100%
    Online order.
    I had a good experience this morning I placed an online order and everything went smoothly. The staff at propel parts has always been helpful in the past when I have been looking for harder to find parts or something that wasn’t listed online.
  4. 100%
    Good Customer Service. Fast Shipping. A+++
  5. 100%
    Excelente atencion y refacciones de calidad
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Frequently Asked Questions

Product

What is the function of the 3P7958 Pump G in Caterpillar equipment?

The 3P7958 Pump G plays a critical role in maintaining proper fluid circulation within your machine???s system. It helps regulate pressure and ensures smooth hydraulic or fuel system operation, supporting overall equipment efficiency and reducing internal wear over time.

Which Caterpillar machines are compatible with the 3P7958 Pump G replacement?

The 3P7958 Pump G replacement is suitable for a wide range of CAT machines, including models like 518, 518C, 528, 528B, 530B, and engines such as 3304 and 3306. Compatibility may vary depending on your specific configuration. Always check your manual or reach out to Propel Parts for help verifying fitment.

How do I install the 3P7958 Pump G replacement?

To ensure proper installation, follow these general steps:

  • Power off the equipment and allow it to cool completely
  • Relieve any system pressure as outlined in your service manual
  • Remove the old pump carefully
  • Clean the mounting surface and surrounding area
  • Install the new 3P7958 Pump G securely according to specifications
  • Restart the machine and check for leaks or irregular performance

For best results, refer to your equipment manual for detailed instructions.

Does the 3P7958 Pump G replacement meet OEM performance standards?

Yes, this replacement pump is engineered to meet OEM specifications and deliver reliable performance under demanding conditions. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications to maintain system integrity and long-term durability.

What are the common signs of a failing or worn-out pump?

A failing pump can lead to several noticeable issues, including:

  • Reduced hydraulic or engine performance
  • Inconsistent pressure levels
  • Unusual noises from the pump area
  • Fluid leaks or overheating
  • Slower machine response times

Early detection and replacement can help prevent costly downtime and further damage.

How often should the 3P7958 Pump G be replaced?

Replacement intervals depend on usage, operating conditions, and maintenance practices. Machines operating in heavy-duty or harsh environments may require more frequent inspections and replacements. Regular servicing ensures optimal performance and helps extend equipment life.

Why is it important to choose a high-quality replacement pump?

Using a reliable replacement pump ensures proper system performance and protects critical components from damage. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications to maintain efficiency, reduce downtime, and support long-term machine reliability.

Can I use an aftermarket 3P7958 Pump G instead of an original part?

Yes, premium aftermarket options are a dependable choice when they are designed to meet OEM specifications. High-quality aftermarket parts provide excellent performance and durability, making them a practical and cost-effective solution for maintaining your equipment without compromising quality.

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

This 3P7958 Gear Pump is compatible with the following models:
518, 518C, 528, 528B, 530B, FB518, 3304, 3306 & 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.

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