Cummins Dowel Pin, 3900257

The Cummins Dowel Pin (Part Number 3900257) is a genuine OEM component designed to ensure precise alignment of engine components, particularly the gear housing, in Cummins 5.9L diesel engines.

Key Features:

• Precise Alignment: Ensures accurate positioning of the gear housing to the engine block, maintaining proper engine timing and function.

• Durable Construction: Manufactured to meet or exceed OEM specifications, offering reliability under demanding engine conditions.

• Compatibility: Specifically designed for 1989-2002 Cummins 5.9L 12-valve and 24-valve diesel engines.

Specifications:

• Part Number: 3900257

• Material: High-quality steel

• Dimensions:

  • Diameter: Approximately 0.25 inches (6.35 mm)
  • Length: Approximately 0.62 inches (15.75 mm)

Applications:

This dowel pin is suitable for various Cummins engine models, including:

• 5.9L 12-Valve Engines (1989-1998)

• 5.9L 24-Valve Engines (1998.5-2002)

Benefits:

• Enhanced Engine Performance: Maintains proper alignment of engine components, contributing to optimal engine efficiency and preventing mechanical failures.

• Extended Component Life: Prevents misalignment that can lead to premature wear or damage, thereby prolonging engine lifespan.

• Maintains OEM Standards: Adheres to original equipment manufacturer specifications, ensuring compatibility and performance consistency.