The Cummins 3900955 is the genuine expansion (freeze) plug for the dipstick location on 1989-2002 Dodge trucks with the 5.9L Cummins, 12 valve or 24 valve.

Use it to replace a corroded, weeping or blown plug with the factory part.

• Genuine Cummins: Factory expansion plug.
• Dipstick Location: Driver side block.
• 12V And 24V: 1989-2002 5.9L.
• Stops Coolant Leaks: Replaces corroded plugs.
• OE Size: Factory press fit.

Technical Specifications

• Part Number: 3900955
• Manufacturer: Cummins
• Type: Expansion plug

Vehicle Fitment & Technical Installation Notes

• Fitment: 1989-2002 Dodge 5.9L Cummins, 12V and 24V.
• Installation Tip: Clean the bore, apply sealant and drive the plug in square with the correct size driver.