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12_78297b6c-f3df-4ed8-9289-a480dfbae56e - Northline Parts

Power Steering Pump 4988390 for Cummins 4BT 3.9L 6BT 5.9L 6CT/6CTA 8.3L Diesel

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$239.89
Sale price  $239.89 Regular price 

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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Power Steering Pump 4988390 for Cummins 4BT 3.9L 6BT 5.9L 6CT/6CTA 8.3L Diesel

Restore your machine's steering precision with this high-quality aftermarket power steering pump. Specifically engineered for Cummins 3.9L, 5.9L, and 8.3L diesel engines, this pump is designed to provide reliable hydraulic pressure and smooth operation. This is a brand-new aftermarket component that serves as a cost-effective alternative to expensive original equipment without sacrificing performance or durability.

Key Features & Benefits

  • Direct replacement for part number 4988390 to ensure a hassle-free installation.
  • Heavy-duty construction designed to withstand the high-stress environment of diesel engines.
  • Restores effortless steering control and eliminates noise or vibration from failing pumps.
  • Precision-machined internal components for consistent hydraulic flow.

Compatible Models

  • Cummins 4BT (3.9L) Diesel Engines
  • Cummins 6BT (5.9L) Diesel Engines
  • Cummins 6CT / 6CTA (8.3L) Diesel Engines

Product Specifications

  • Part Number: 4988390
  • Part Type: Power Steering Pump
  • Condition: New Aftermarket
  • Compatible Engines: Cummins 3.9L, 5.9L, 8.3L

Frequently Asked Questions

Is this an OEM part?
No, this is a premium aftermarket replacement part designed to meet or exceed the performance specifications of the original equipment.

How do I confirm compatibility?
Verify that your current pump's part number matches 4988390. You should also check your engine's serial number and technical manual to ensure this pump is the correct fit for your specific application.


Important: This is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM). Brand names and model numbers are used for reference purposes only. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.

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Service was professional and easy to work with. They kept me updated on my order and recommended a different part when the one I originally picked wasn’t going to work. Everything showed up as expected and the process was smooth overall.

- Customer, Chris D.

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