2025 Honda CR-V Serpentine Belt Routing & Replacement

Quick Answer

• Belt Length: 69.8 inches (approximately 1773 mm)
• Rib Count: 6-rib
• OEM Belt PN: 31110-6A0-A01 (Please verify with your Honda dealer as part numbers can change.)
• Aftermarket Cross-references:
  • Gates K060698
  • Dayco 5060698
  • Continental Elite 4060698
• Auto-Tensioner PN: 31170-6A0-A01 (Please verify with your Honda dealer as part numbers can change.)
• Idler Pulley PN: 31173-5A2-A01 (Please verify with your Honda dealer as part numbers can change.)

The 2025 Honda CR-V, depending on the engine option, may have slight variations in its serpentine belt system. This guide focuses on the most common 1.5L turbocharged engine found in most gasoline models. Always double-check part numbers with your specific VIN for absolute accuracy.

Belt Routing

Before you begin any work, take a clear, well-lit photograph of the existing belt routing! This will be an invaluable reference during reinstallation.

For the 2025 Honda CR-V with the 1.5L turbocharged engine, the serpentine belt typically follows this path:

1. Starting from the crankshaft pulley (the lowest, largest pulley on the engine, driving the belt).
2. The belt then goes up and over the A/C compressor pulley (usually on the lower passenger side).
3. From the A/C compressor, it travels down and under the idler pulley (a smooth, non-driven pulley used to guide the belt).
4. The belt then moves up and over the alternator pulley (typically located higher on the passenger side, charging the battery).
5. Next, it goes around the power steering pump pulley (if equipped, otherwise this step is skipped or a dummy pulley is in its place – the 2025 CR-V often uses electric power steering, so this pulley may be absent or integrated if present).
6. It continues around the water pump pulley (circulating coolant through the engine).
7. Finally, the belt loops under the automatic tensioner pulley (a spring-loaded pulley that maintains proper belt tension).

This routing ensures all accessories are driven correctly. Again, refer to your photograph before installation to ensure perfect alignment.

How to Replace the Serpentine Belt

Replacing the serpentine belt on your 2025 Honda CR-V can be a DIY task for those comfortable with basic automotive work. Here's a general outline:

1. Safety First: Ensure the engine is off and cool. Disconnect the negative terminal of the battery to prevent accidental starting.
2. Locate the Tensioner: Identify the automatic belt tensioner. It will have a square opening, typically 3/8-inch, for a breaker bar or a specific serpentine belt tool.
3. Release Tension: Insert a 3/8-inch breaker bar or the serpentine belt tool into the square opening on the tensioner. Rotate the tensioner clockwise (or counter-clockwise, depending on the design – observe the tensioner’s movement) to relieve tension on the belt. Hold it in this position.
4. Remove the Old Belt: While holding the tensioner, carefully slip the belt off one of the pulleys (the easiest one to access). Once the belt is loose, you can release the tensioner and remove the old belt completely.
5. Route the New Belt: Referring to your photograph, begin routing the new belt around all the pulleys, leaving the tensioner pulley for last or one of the easily accessible pulleys. Make sure the ribs on the belt align perfectly with the grooves on the ribbed pulleys.
6. Tension the New Belt: Once the belt is mostly routed, re-insert the breaker bar or tool into the tensioner. Rotate the tensioner again to create slack, then slip the new belt fully onto the remaining pulley. Slowly release the tensioner, ensuring the belt seats correctly.
7. Double-Check: Once the tensioner is released, inspect the entire belt path to confirm it's correctly seated on all pulleys and that all ribs are aligned. Give it a few turns by hand (if possible and safe) to ensure it