Repair Sleeve for Cummins 4B / 6B / ISB / QSB Engines - Replaces 3904166

Fortpro Repair Sleeve for Cummins 4B, 6B, ISB and QSB engines is a robust and reliable solution to keep your engine in optimal condition. The Sleeve, which replaces OEM reference 3904166, is designed to provide a smooth, wear-resistant combustion surface for the pistons, significantly improving engine efficiency and durability. Manufactured with high quality materials, it is capable of withstanding the most extreme operating conditions, including high temperatures and pressures. Ensures excellent tightness and minimizes engine downtime.

• Brand: Fortpro
• Vehicle Type: Semi-Trucks / Heavy Trucks
• Product Department: Engine
• Product category : Cummins Parts
• Part Type: Repair Sleeve / Cylinder Liner
• OEM Reference #: 3904166
• Material: Metal Alloy
• Outside Diameter (O.D): 4.117 in.
• Inside Diameter (ID): 4.015 in.
• Length: 7.874 in.
• Applications:
  Cummins 4B Series Engines
  Cummins 6B Series Engines
  Cummins ISB Series Engines
  Cummins QSB Series Engines

• Cummins: 3904166
• PAI: 161630

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