Eng.Piston Set 4089420

positive OEM
Cummins
Part# 4089420
note
Engine piston kit for restoring compression in heavy-duty diesel engines.
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Extended Lead Time
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Description

The Cummins 0.50mm Oversize Engine Piston Kit (4089420) is a critical engine component designed to replace worn pistons and restore engine compression. This piston kit supports the combustion process by transferring force from expanding gases to the crankshaft, ensuring efficient engine operation in heavy-duty applications.

Key Specifications

  • Application: B, ISB, QSB engine series
  • Function: Converts combustion pressure to mechanical motion
  • Compatibility: Heavy-duty diesel engines
  • Construction: Forged aluminum alloy
  • Features: 0.50mm oversize, includes piston rings and retainer
  • Quality: OEM Cummins part

Shipping Info

Next Day Air services are available for In Stock items. Our shipping cutoff time is Monday - Friday 4:30pm Eastern Standard Time (EST). 

 

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More Information

Current Part# 4089420
Type OEM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty