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Cummins Cylinder Kit 3801779 | For NT855 & NTA855 Engines

Cummins Cylinder Kit 3801779 – Precision-engineered cylinder kit for NT855 and NTA855 diesel engines. Designed for turbocharged applications with 14.5:1 compression ratio . Complete kit includes piston, rings, liner, and pin.

OEM Number

3801779

Compatible Engines: NT855, NTA855, NH855, NTC855 (Big Cam series)

Cross Numbers:

Part NumberReference
3801779Primary OEM
IF3801779BCInterstate-McBee inframe kit 
3803549OEM alternate 
3803549-1 / 3803549AAdditional references 

Specifications:
✅ Compression Ratio: 14.5:1 (turbo)
✅ OEM-grade quality

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