2019 Ram ProMaster Serpentine Belt Routing & Part Numbers

Quick Answer

For your 2019 Ram ProMaster (3.6L V6 engine):

• Belt Length: Approximately 98.4 inches
• Rib Count: 6-rib
• OEM Belt PN: 68060384AD
• Aftermarket Cross-references:
  • Gates K060984 (or K06098 5 for slightly longer due to manufacturing variations)
  • Dayco 5060985
  • Continental Elite 4060985
• Auto-Tensioner PN: 68102370AA
• Idler Pulley PN: 05038165AA

Belt Routing

The 2019 Ram ProMaster, equipped with the 3.6L V6 Pentastar engine, utilizes a single serpentine belt to drive all its accessories. Before you even think about removing the old belt, take a clear, well-lit photograph of the existing belt routing. This will be your most valuable reference during reinstallation.

Here's a step-by-step description of the belt's path, starting from the crankshaft pulley:

1. Crankshaft Pulley: The belt originates at the crankshaft pulley, which is the largest pulley located at the bottom center of the engine. It drives all other accessories.
2. A/C Compressor: From the crankshaft, the belt typically goes up and to the right (when facing the engine from the front of the vehicle) to wrap around the air conditioning (A/C) compressor pulley. It usually wraps around the bottom portion of this pulley.
3. Idler Pulley: After the A/C compressor, the belt will run up to an idler pulley. This pulley is smooth and serves to guide the belt and provide the correct amount of wrap on other pulleys. It will typically go over the top of this idler pulley.
4. Alternator: From the idler pulley, the belt will travel down and to the left to wrap around the alternator pulley. The alternator is usually located higher up on the engine, often on the driver's side.
5. Power Steering Pump: The belt then proceeds down from the alternator to the power steering pump pulley. This pulley is generally smaller than the others and can be found lower on the engine, often below the alternator.
6. Water Pump: Next, the belt typically makes its way up to the water pump pulley. The water pump is usually centrally located on the front of the engine, helping to circulate coolant.
7. Automatic Tensioner: Finally, the belt will route over the top of the automatic tensioner pulley. This spring-loaded tensioner ensures the belt maintains proper tension on all the pulleys. The tensioner pulley is usually smooth.

From the automatic tensioner, the belt completes its loop by returning to the crankshaft pulley.

How to Replace the Serpentine Belt

Replacing the serpentine belt on your 2019 Ram ProMaster requires a few basic tools and a bit of patience. The most crucial tool is a serpentine belt tool or a long 3/8-inch breaker bar or ratchet to release tension from the automatic tensioner.

1. Safety First: Ensure the engine is off and cool. Disconnect the negative battery terminal to prevent accidental starting.
2. Locate the Tensioner: Identify the automatic belt tensioner. It will have a square hole (1/2-inch or 3/8-inch, depending on the design) for your breaker bar or serpentine belt tool.
3. Release Tension: Insert your tool into the square hole on the tensioner. Apply steady, counter-clockwise (or clockwise, depending on the tensioner's design – observe the direction it needs to move to loosen the belt) pressure to rotate the tensioner arm, thereby releasing tension on the belt.
4. Remove the Old Belt: While holding the tensioner in the released position, carefully slip the old belt off one of the easier-to-reach pulleys (e.g., the idler or alternator). Once it's off a pulley, you can fully relax the tensioner and remove the belt from all accessories.
5. Route the New Belt: Referring to your photograph or the