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2003 Dodge 5.9 Cummins Serpentine Belt Diagram

If you own a 2003 Dodge 5.9 Cummins, it’s essential to understand the serpentine belt diagram to keep your vehicle running smoothly. The serpentine belt is a vital component that drives the engine accessories, such as the alternator, water pump, and power steering pump. Without the serpentine belt, these components won’t function properly, and your 2003 Dodge 5.9 Cummins won’t run. In this article, we’ve compiled a comprehensive guide to the 2003 Dodge 5.9 Cummins serpentine belt diagram that will help you understand how it works and how to replace it when necessary.

What is a serpentine belt, and how does it work?

Serpentine Belt

A serpentine belt, also known as a multi-rib or poly-V belt, is a long, continuous belt that drives various engine accessories such as the alternator, water pump, power steering pump, and air conditioning compressor. Unlike the traditional V-belt, a serpentine belt runs around multiple pulleys, each with a ribbed or grooved surface that grips the belt. The belt’s ribbed surface provides better contact with the pulleys, resulting in higher efficiency and longer life.

2003 Dodge 5.9 Cummins serpentine belt diagram

Dodge 5.9 Cummins Serpentine Belt Diagram

The 2003 Dodge 5.9 Cummins serpentine belt diagram is a guide to show how the belt runs around the various engine accessories. The diagram is usually located on the hood or the radiator shroud, and it’s essential to follow it when installing a new serpentine belt or replacing a damaged one. On the 2003 Dodge 5.9 Cummins, the serpentine belt runs around six pulleys.

How to replace the serpentine belt in a 2003 Dodge 5.9 Cummins

Replacing the serpentine belt in a 2003 Dodge 5.9 Cummins is a relatively simple procedure that can be done in about an hour. Here are the steps to follow:

  1. Locate the tensioner pulley and insert a 3/8-inch ratchet into the square hole. Then, turn the ratchet clockwise to release the tension on the belt.
  2. Slide the belt off the pulleys, starting with the topmost pulley.
  3. Compare the old belt with the new one to ensure it’s the correct length and width.
  4. Install the new belt onto the pulleys, starting with the bottom-most pulley, and working your way up.
  5. Use the ratchet to turn the tensioner pulley clockwise and slide the new belt over the final pulley.
  6. Inspect the belt for proper alignment and tension, and start the engine to ensure everything works correctly.

Conclusion

The 2003 Dodge 5.9 Cummins serpentine belt diagram is an essential guide to help you maintain your vehicle’s engine accessories. Understanding how the serpentine belt works and how to replace it when necessary is key to ensuring your vehicle runs smoothly. By following the steps outlined in this article, you can replace the serpentine belt in your 2003 Dodge 5.9 Cummins quickly and efficiently.

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