Threaded Plug 3977855

positive OEM
Cummins
Part# 3977855
note
Threaded plug sealing openings in engine fluid and oil systems.
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Description

The Cummins Threaded Plug (3977855) is a mechanical sealing component used to close off openings in fluid and oil systems. It maintains system integrity by preventing leaks and contamination, supporting pressure management within commercial vehicle engine assemblies.

Key Specifications

  • Application: Tier 3 5.9 liter ISB/QSB engines
  • Function: Seals threaded openings to prevent leaks
  • Compatibility: Cummins ISB, QSB, 6B5.9, B4.5 RGT, B5.6 CM2670, B6.7 CM2350, ISD, QSB series
  • Construction: Corrosion-resistant metal alloy
  • Features: External threads, O-ring groove for sealing
  • 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# 3977855
Type OEM
Part# variations 3977855 CUM,
3977855CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty