Mechman Alternator Belt Finder | Big Jeff AudioUpdated 6 months ago

How to Find the Correct Belt for Your Mechman Alternator

Finding the ideal belt for your high output alternator is crucial for ensuring proper tension and optimal performance. Thanks to the Dayco brand belt finder, it’s simple to find a slightly shorter or longer belt if needed. This guide will walk you through the steps to choose the right belt length, so your Mechman alternator performs at its best.

About Belt Length and Tension

If your Mechman alternator uses the smaller 1.75" (46mm) pulley, you may need a slightly shorter belt, typically 1/2" or 3/4" shorter, to maintain proper tension. The correct belt length will position your vehicle's factory spring tensioner in the same spot as it would with your OE belt and alternator. If the belt is too loose, it will slip, and if too tight, it can cause premature wear.

Step-by-Step Guide to Finding Your Belt

1. Visit the Dayco Quick Belt Finder: Quick Belt Finder
2. Enter Vehicle Information: Input your vehicle’s make, model, year, and engine. You can also use your license plate number for a quicker search.
3. Select the Correct Belt: Many vehicles have multiple belts listed, such as for the main drive and an accessory belt for the air conditioner. Choose the belt that turns the alternator.
4. Check Factory Belt Dimensions: Locate the “Effective Length (in)” under your factory belt details.
5. Calculate New Belt Length: Adjust the effective length by subtracting (or adding if needed) 1/2" to 3/4" for optimal tension.
6. Search the Dayco Belt Database: Use the Auto and Heavy-Duty Belts Database to find available sizes based on your new belt length.
7. Example: Below is an example image to guide you through confirming belt dimensions.
   

*** POPULAR GM TRUCK /// SUV BELT PART NUMBER APPLICATIONS ***