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4089181 | Cummins 4B .50mm Piston Ring Set

Pricing: $23.40


When it comes to Piston Ring Sets, why risk your engine?

Don’t let a small part turn into a major repair. We wouldn't risk putting sub-par parts into our engines, so why should you? 

HHP only sells Piston Ring Sets that are manufactured in a state of the art facility using top of the line machining and measuring equipment to ensure each part is manufactured to OEM specifications. Combine this with up to 50% off OEM prices, an industry leading 2-Year Parts and Labor Warranty and technical expertise from HHP’s certified staff, and you’ve got a quality Piston Ring Set that will keep you running for another million miles. 

Need a little extra proof? Let's talk shop.

  • This brand new piston ring set is manufactured and assembled in an ISO 9001:2008 certified facility. This gives you the best of quality and consistency. 
  • Also, you'll get proper fit and function because this set is built to strict OEM specifications. You can't beat that!
  • Plus, you'll have more cash on hand because quality meets or exceeds the OE's at a much lower price. That's more bang for your buck!


  • (1) .50mm Piston Ring Set
    • (1) Top Piston Ring 
    • (1) .50mm Second Piston Ring 
    • (1) Oil Ring


2-Year Parts and Labor Warranty

OEM Applications

  • 3957244
  • 3949579
  • 4089181

Technical Data

Bore: .50mm
Fits Applications:


  • P023245
  • P023245
  • IMB
  • New

Shipping Information

  • Item Requires Shipping
  • 0.3 lbs.
  • W1.2500” x H5.2500” x L5.2500”

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