2021 Ford Escape: Serpentine Belt Routing & Replacement

Quick Answer

• Engine Option: 1.5L EcoBoost (181 hp)

  • Belt Length: 1941mm (76.4 inches)
  • Rib Count: 6-rib
  • OEM Belt Part Number: LX6Z-8620-A
  • Aftermarket Cross-References:
    • Gates: K060764
    • Dayco: 5060765
    • Continental: 4060765
  • Auto-Tensioner Part Number: LX6Z-6B209-A
  • Idler Pulley Part Number: Not applicable (The tensioner assembly includes the pulley).

• Engine Option: 2.0L EcoBoost (250 hp)

  • Belt Length: 1219mm (48.0 inches)
  • Rib Count: 5-rib
  • OEM Belt Part Number: JX6Z-8620-A
  • Aftermarket Cross-References:
    • Gates: K050480
    • Dayco: 5050480
    • Continental: 4050480
  • Auto-Tensioner Part Number: JX6Z-6B209-A
  • Idler Pulley Part Number: Not applicable (The tensioner assembly includes the pulley).

Belt Routing

Before you remove the old serpentine belt, always take a clear photograph of the belt's path for reference. This will save you significant time and frustration. The routing for the 2021 Ford Escape varies by engine:

1.5L EcoBoost Belt Routing

The belt snakes around the front of the engine, connecting all the accessories. Starting from the crankshaft pulley at the bottom, the path is as follows:

1. Crankshaft Pulley (bottom center)
2. Wraps around the Air Conditioning Compressor (passenger side)
3. Goes up and over the Alternator (top passenger side)
4. Across to the Water Pump (top center)
5. Down and around the Tensioner Pulley (driver side)
6. Returns to the Crankshaft Pulley.

2.0L EcoBoost Belt Routing

The 2.0L engine uses a simpler routing path:

1. Crankshaft Pulley (bottom center)
2. Wraps around the Air Conditioning Compressor (passenger side)
3. Goes up to the Alternator (top passenger side)
4. Down and around the Tensioner Pulley (center)
5. Returns to the Crankshaft Pulley.

How to Replace the Serpentine Belt

Replacing the serpentine belt on a 2021 Escape is a manageable task for a DIYer. You will need a serpentine belt tool or a long-handled 3/8" drive breaker bar.

1. Safety First: Ensure the engine is cool. Disconnect the negative battery terminal.
2. Locate the Tensioner: The auto-tensioner is a spring-loaded pulley designed to keep the belt tight. It has either a 3/8" or 1/2" square hole in the body of the tensioner arm, or a hex head on the pulley bolt.
3. Release Tension: Fit your serpentine belt tool or breaker bar into the designated slot on the tensioner arm. Rotate the tensioner to release the pressure on the belt. The tensioner is spring-loaded, so this will require some force.
4. Remove the Old Belt: While holding the tensioner in the released position, slip the belt off one of the smooth pulleys, like the water pump or alternator.
5. Inspect Pulleys: With the belt removed, spin each pulley by hand. They should spin freely and quietly. A noisy or wobbly pulley indicates a failing bearing, and the component should be replaced.
6. Install the New Belt: Using your photograph and the routing diagram above, carefully thread the new belt around the pulleys, saving a smooth, easily accessible pulley for last.
7. Apply Tension: Release the tensioner again with your tool and slip the belt over the final pulley. Double-check that the belt is correctly seated in the grooves of every ribbed pulley. A misaligned belt will shred itself quickly.
8. Final Check: Once you are certain the belt is routed correctly, reconnect the battery, start the engine, and let it run for a minute to ensure everything is operating smoothly.

Replacement Interval

Ford recommends inspecting the serpentine belt at regular service intervals. While there is no strict replacement mileage, it's wise to replace it preventatively between 75,000 and 100,000 miles. In harsh climates with extreme heat or cold, consider replacing it sooner.

Signs of a Failing Belt or Tensioner

Your belt and its tensioner will give you warning signs before a complete failure. Look out for:

• Squealing or Chirping Noises: This is the most common sign, often worse on cold starts or in damp weather. It indicates the belt is slipping.
• Visible Wear: Inspect the belt for cracks, fraying, glazing (shiny spots), or missing ribs.
• Tensioner Pulley Noise: A grinding or rumbling noise from the tensioner area points to a failing bearing in the pulley.
• "Fluttering" or "Jumping" Tensioner Arm: The tensioner arm should remain relatively steady while the engine is running. If it's bouncing erratically, the internal spring is weak, and the entire assembly needs replacement.
• Accessory Malfunctions: Since the belt drives everything from the alternator to the A/C, a failing belt can cause dimming headlights, a dead battery, loss of power steering assist, or engine overheating.

If you're not comfortable performing this service yourself, you can find a trusted shop on Repairius.