If you have a (Dodge) Ram 1500, chances are you’ll experience issues with the water pump at some point. Here’s a list of symptoms related to water pump failure on the Ram 1500, as well as some diagnostic tips, repair info, recommended parts, and background information.

Ram 1500 Water Pump Failure Symptoms

  • Low coolant tank
  • Coolant leak
  • Overheating engine
  • Engine noise
  • Serpentine belt wear

Water Pump Diagnosis and Repair Tips

Water pumps can leak from the housing gasket or shaft seal with age and mileage. Coolant leaking from the shaft seal can be an early indication of water pump failure. Water pumps can degrade from age, overheating, or bearing failure. Water pump noise is caused by bearing wear or the impeller striking the housing after bearing failure. The following conditions can cause water pump failure, or other cooling system damage, including corrosion:

  • Using the wrong type of coolant
  • An incorrect ratio of the coolant and water mixture
  • Using tap water instead of distilled water in the coolant mixture
  • Cooling system overheating
  • Cooling system restrictions or cavitation
  • Cooling system leaks
  • Loose drive belt or tensioner

It’s important to address any water pump or cooling system issue at the first sign of leakage or noise. Scheduled cooling system maintenance can help prevent water pump issues and increase longevity.

Recommended Replacement Water Pumps

Check the table below to find the recommended replacement water pumps available for the (Dodge) Ram 1500

1994 – 2001 Dodge Ram 1500 V6 3.9L
1994 – 2001 Dodge Ram 1500 V8 5.2L 
1994 – 2003 Dodge Ram 1500 V8 5.9L 
120-3041
1994 – 2001 Dodge Ram 1500 V6 3.9L
1994 – 2001 Dodge Ram 1500 V8 5.2L 
1994 – 2003 Dodge Ram 1500 V8 5.9L
120-3041P
1994 – 2001 Dodge Ram 1500 V6 3.9L
1994 – 2001 Dodge Ram 1500 V8 5.2L 
1994 – 2003 Dodge Ram 1500 V8 5.9L
120-0004
2002 – 2010 Dodge Ram 1500 V6 3.7L
2002 – 2010 Dodge Ram 1500 V8 4.7L
2011 – 2012 Ram 1500 V6 3.7L
2011 – 2013 Ram 1500 V8 4.7L
120-4350
2003 – 2008 Dodge Ram 1500 V8 5.7L (OE Replacement)120-4370
2003 – 2008 Dodge Ram 1500 V8 5.7L (w/Thermal Fan Clutch)120-0022
2009 – 2010 Dodge Ram 1500 V8 5.7L
2011 – 2018 Ram 1500 V8 5.7L
120-4430
2009 – 2010 Dodge Ram 1500 V8 5.7L
2011 – 2018 Ram 1500 V8 5.7L
120-0008
2014 – 2018 Ram 1500 V6 3.0L (Diesel)
2019 – 2019 Ram 1500 Classic
120-4550
2013 – 2018 Ram 1500 V6 3.6L
2019 – 2022 Ram 1500 Classic
120-4450

 Why Do Rams Have Water Pump Problems?

Coolant leaking excessively from the weep hole is the most common problem with (Dodge) Ram 1500 water pumps. Otherwise, (Dodge) Ram water pump issues are typical of most trucks with age or high mileage. These include coolant leaks from the gasket or shaft seal and worn bearings. Other cooling system issues or things like a worn serpentine belt and/or tensioner can also impact water pump life. Always perform scheduled maintenance on the cooling system to ensure long water pump life. Inspect the serpentine drive belt at each oil change.

Learn more about water pumps with our comprehensive guide

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