2016 Chevrolet Tahoe Serpentine Belt Routing & Replacement Guide

Quick Answer

• Belt Length: 105.0 inches (approximately)
• Rib Count: 6-rib
• OEM Belt PN: AC Delco 6K1050 (confirm with VIN)
• Aftermarket Cross-references:
  • Gates K061050
  • Dayco 5061050
  • Continental Elite 4061050
• Auto-Tensioner PN: AC Delco 12628414 (confirm with VIN)
• Idler Pulley PN: AC Delco 12604027 (confirm with VIN)

Belt Routing

The 2016 Chevrolet Tahoe, especially with the 5.3L V8 engine, uses a single serpentine belt to drive all accessories. Before you begin, it’s highly recommended to take a clear photograph of your current belt routing. This will serve as an invaluable reference during reinstallation.

Here's a typical routing path for the 5.3L V8 engine. Please note that slight variations might exist based on specific option packages:

1. Starting from the crankshaft pulley (the lowest and largest pulley at the front of the engine).
2. The belt then travels upwards to the A/C compressor pulley, typically located on the lower passenger side of the engine.
3. From the A/C compressor, the belt moves to the idler pulley, which is usually a smooth pulley that simply guides the belt, often found above the A/C compressor or in a central location.
4. Next, the belt wraps around the alternator pulley, located towards the top and front of the engine, usually on the driver's side.
5. From the alternator, the belt may pass over another idler pulley or directly to the power steering pump pulley, generally located lower on the driver's side.
6. The belt then continues to the water pump pulley, often prominently located in the center-upper part of the engine.
7. Finally, the belt goes to the automatic tensioner pulley, which maintains the correct tension on the belt and is usually easily identifiable by its spring-loaded mechanism.
8. The belt then returns to the crankshaft pulley, completing the loop.

How to Replace the Serpentine Belt

Replacing the serpentine belt on your 2016 Chevrolet Tahoe is a DIY-friendly task for those with basic mechanical skills. You will need a serpentine belt tool or a 3/8-inch drive breaker bar.

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 opening for your serpentine belt tool or breaker bar.
3. Relieve Tension: Insert your tool into the square opening on the tensioner. Apply steady clockwise (or counter-clockwise, depending on the tensioner design) pressure to rotate the tensioner assembly and relieve tension on the belt. This will allow you to slip the belt off the pulleys.
4. Remove the Old Belt: Once tension is relieved, carefully slide the old belt off one of the smoother idler pulleys first, then off the remaining pulleys.
5. Inspect Pulleys: While the belt is off, inspect all pulleys for any signs of wear, wobbling, or excessive noise when spun by hand. Replace any faulty pulleys (idler or tensioner) as needed.
6. Install the New Belt: Following the routing diagram you photographed earlier (or the description above), route the new belt around all pulleys except for one of the smoother, non-grooved pulleys (typically an idler pulley). This is usually the easiest pulley to leave till last.
7. Apply Tension: Again, use your serpentine belt tool or breaker bar to rotate the tensioner and create slack. While holding the tensioner open, slip the new belt over the last pulley. Slowly release the tensioner, ensuring the belt is seated correctly in all pulley grooves.
8. Double-Check Routing: Before starting the engine, carefully inspect that the belt is correctly seated in all grooves on all pulleys and that the routing matches your diagram.
9. Reconnect Battery: Reconnect the negative battery terminal.
10. Test: Start the engine and visually inspect the belt for smooth operation. Listen for any squealing or unusual noises.

Replacement Interval

For the 2016 Chevrolet Tahoe, it