CUMMINS 3905401 GENUINE OEM EXPANSION PLUG (SIDE) FOR 03-18 DODGE RAM DIESEL

The Cummins 3905401 Part is a genuine OEM part engineered for precise fit and long-term reliability on Dodge Ram Cummins applications.

Fitment

• 2003 Dodge Ram 2500/3500 with Cummins diesel
• 2004 Dodge Ram 2500/3500 with Cummins diesel
• 2005 Dodge Ram 2500/3500 with Cummins diesel
• 2006 Dodge Ram 2500/3500 with Cummins diesel
• 2007 Dodge Ram 2500/3500 with Cummins diesel
• 2008 Dodge Ram 2500/3500 with Cummins diesel
• 2009 Dodge Ram 2500/3500 with Cummins diesel
• 2010 Dodge Ram 2500/3500 with Cummins diesel
• 2011 Dodge Ram 2500/3500 with Cummins diesel
• 2012 Dodge Ram 2500/3500 with Cummins diesel
• 2013 Dodge Ram 2500/3500 with Cummins diesel
• 2014 Dodge Ram 2500/3500 with Cummins diesel
• 2015 Dodge Ram 2500/3500 with Cummins diesel
• 2016 Dodge Ram 2500/3500 with Cummins diesel
• 2017 Dodge Ram 2500/3500 with Cummins diesel
• 2018 Dodge Ram 2500/3500 with Cummins diesel

Key Features

• Genuine Cummins OEM part number 3905401
• Direct-fit part built to factory specifications
• Durable materials for heat, pressure, and vibration
• Ideal for maintenance, repairs, or rebuilds

Frequently Asked Questions

Is this an OEM Cummins part?

Yes genuine Cummins for exact fit and reliability.

Will it fit my truck?

See the Fitment list for supported years/engines.

Installation tips?

Use factory torque specs and procedures for best results.

Related Categories

• /dodge-cummins/
• /engine-parts/
• /cooling-system-0307/

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