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Need a new power steering pump for your Cummins 4BT or 6BT 5.9L diesel?
This one’s a perfect match!
It’s brand new and still sealed in its original packaging.

The part number is 4988390, and it’s designed to be a direct replacement—just bolt it on and you’re good to go.
Made by LKYHHY, this pump features a 100% accuracy of fit, so no guesswork involved.

It’s not a universal part, so make sure you’ve got the right engine.

It comes with a 6-month warranty, giving you peace of mind.
The pump is built to OE specs, so it performs just like the original.
Whether you’re restoring a vintage rig or fixing up a daily driver, this pump will keep your steering smooth and responsive.
Made in China but quality-checked for reliability.

No UPC, but the MPN is 97136167.

4.4 out of 5