SKU: 46525412004

Heavy Duty Drive Belt for Yamaha - Gates / Napa G-Force 78G3640

$48.27 $53.63
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Description

Heavy Duty Drive Belt for Yamaha - Gates / Napa G-Force 78G3640Gates CVT Drive Belt for Yamaha This CVT drive belt fits Yamaha ATVs. Belt description: CVT ( Continuous Variable Transmission ) Napa G Force 78G3640 Yamaha UTVs and Side by Sides Replaces Carlisle UA425 Replaces Goodyear 20GBS938 Replaces Napa Gates 78G3640, 78C3640 Replaces Yamaha 3FA1764100, 3FA17641000 Length: 946mm (37. 25 in) Width: 20mm (0. 781 in) High Performance Neoprene with Carbon Tensile Cords for Optimal Power Transmission and Increased

Gates CVT Drive Belt for Yamaha 

This CVT drive belt fits Yamaha ATVs. 

Belt description:

  • CVT (-Continuous Variable Transmission-)
  • Napa G-Force - 78G3640
  • Yamaha UTVs and Side by Sides
  • Replaces Carlisle - UA425
  • Replaces Goodyear - 20GBS938
  • Replaces Napa / Gates 78G3640, 78C3640
  • Replaces Yamaha - 3FA1764100, 3FA17641000
  • Length: 946mm (37.25 in)
  • Width: 20mm (0.781 in)
  • High Performance Neoprene with Carbon Tensile Cords for Optimal Power Transmission and Increased Side Load Resistance

Fits the following Yamaha models:

  • 1991 - 2004    Breeze  124cc
  • 2004 - 2009    Grizzly 125 
  • 2010 - 2013    Grizzly 125 Automatic

The fastest way to ruin your new powersport drive belt is to simply install it. If you don’t break the belt in properly, you’ll find yourself shredding the belt instead of the terrain. In fact, most powersport belt failures can be attributed to improper break-in and clutch adjustment – or not breaking in the belt at all.

Ensure the best performance and longest life from your G-Force belt. Follow these three steps when installing a new belt.

1. Install the Right Belt. Using a belt that’s even slightly different than the OE specs can affect performance – or stop yFou in your tracks.

2. Align and Clean. Align the clutches according to manufacturer’s specifications and clean the sheaves with a Scotch-Brite® pad. Remove old belt residue, glazing, oils and debris with alcohol or acetone on the clutch sheave area. DO NOT USE BRAKE CLEANER.

3. Install and Break It In. Perform two heat cycles in 20 miles. Conservatively run through the entire shift range, without exceeding ¾ throttle. Bring the belt back to normal operating temperature (15 minutes) then shut down and completely cool the belt for 30 minutes. Repeat the process.

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
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    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
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    SKU: 46525412004

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    4.4 ★★★★★
    Based on 21 reviews
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    Product Reviews
    J
    Verified Purchase
    Joy
    Massapequa, US
    ★★★★★ 5
    Extremely durable, dogs love them
    Color: 2 PC-Beef-Red, Color: 2 PC-Beef-Red
    I was looking for the toughest and most durable dog chew bone I could find and this is it. I have bought multiple other brands that claim to be very durable and tough for a very long time and this is the one for sure. The shower has described this phone accurately and it truly does last. I purchased this bone about 2 months ago. As you see from the photos attached, this is a very well made chew bone and my aggressive pitbulls can't tear it apart do they try. They never get tired of it and chewing it every single day for hours on and keeping them very occupied. I have two bones and three pitbulls that chew on it every day. It is so adorable and has an awesome flavor to it which I think entices them even more to want to chew on it. The durability and Lasting power is amazing to me with these tough chewers. I highly recommend this product to everyone out there. I will say only one negative and that is that the middle wraparound piece they were able to pull off but that is not a big deal because there is plenty of bone which was under that cover in the middle of the bone. There's a few mauled chips missing from the ends but the life of this bone is obviously going to be a long time which really surprised me. Give it a shot if you have heavy duty chewers and you will find how awesome this phone really is and it's durability and strength our second to none in my opinion.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 5, 2025
    W
    Verified Purchase
    WhoFan69
    Battle Creek, US
    ★★★★★ 5
    My dog loves it.
    Color: 1 PC-Beef-Red
    My dog is a super aggressive chewer when it comes to toys. Anything that is soft he rips apart. This one has a wonderful squeaky sound that makes him happy and he enjoys the smell of it. This is a very strong material and definitely worth the price.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 10, 2026
    J
    Verified Purchase
    jeniene
    West Palm Beach, US
    ★★★★★ 4
    Durable!
    Color: 1 PC-Beef-Red
    Alright, here's a product review for those Tough Dog Toys: Finally, a Toy That Survives My Monster! - Tough Dog Toys Review As the owner of a determined (and I mean determined) large breed chewer, finding toys that last longer than five minutes has been a constant and often frustrating quest. I've gone through countless plush toys ripped to shreds, rubber toys with chunks missing, and even some "indestructible" toys that met their demise far too quickly. That's why I was both hopeful and skeptical when I came across the Tough Dog Toys, designed specifically for aggressive chewers and large breeds. Let me tell you, these bone-shaped nylon toys are living up to their name. My power-chewing Labrador has been going at this thing for days now, and I'm genuinely impressed. Where other toys have succumbed to his relentless gnawing, the Tough Dog Toy has held its own. There are some minor teeth marks, as expected, but absolutely no significant damage, no pieces torn off, and no signs of imminent destruction. "Almost indestructible" might actually be an understatement! The design is simple but effective. The solid nylon construction feels incredibly durable, and the bone shape is easy for my dog to grip and maneuver. It's also a good size for a large breed – substantial enough that he can really get a good chew going without it disappearing in his mouth. What I appreciate most is the peace of mind this toy provides. I no longer have to constantly supervise playtime, fearing that he'll ingest pieces of a destroyed toy. This feels like a safe and long-lasting option for even the most enthusiastic chewers. Pros: * Truly durable – stands up to aggressive chewing from a large breed. * Solid nylon construction feels virtually indestructible. * Safe design with no small parts to break off. * Good size and shape for large dogs to grip and enjoy. * Provides long-lasting entertainment. Cons: * May show some teeth marks over time (though this hasn't compromised its integrity). * It's a fairly hard material, so dogs who prefer softer toys might not be as interested. Overall: If you're at your wit's end trying to find a toy that can withstand your aggressive chewing large breed dog, I highly recommend giving the Tough Dog Toys a try. This bone toy has proven to be the most durable option we've encountered, offering excellent value for money and, most importantly, a safe and engaging chewing experience for your furry friend. Five out of five paws!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 16, 2026
    A
    Verified Purchase
    Amazon Customer
    Bozeman, US
    ★★★★★ 5
    Very well made chew bone!
    Color: 1 PC-Beef-Red
    Great durable, very well made chew bone! Our dog usually tears up all his toys within a few minutes or sometimes hours after he gets them. He’s had this bone for a few days and it’s still in one piece. Except for the rubber that’s in the middle, he chewed up in a couple of days. I would definitely buy more chew toys made by this company! Well worth the money!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 30, 2026
    P
    Verified Purchase
    Pittieluv79
    Whiting, US
    ★★★★★ 3
    The rubber middle is not durable, it lasted less than 3 hours.
    Color: 1 PC-Beef-Red
    I bought this as I have bully/husky puppies (9 months old) and a pitt/doberman (9 years old). They are heavy chewers and destroy everything. I saw a video of this toy. The woman said that her dog chewed on it for a while (about 2 hours or so) she showed the ends visibly chewed, which I expect but it was holding up. The rubber middle seemed to hold up to. I received this yesterday. I had to take it away from them last night as they were chewing the rubber middle off. They had it maybe 3 hours. I didn't give it a lower star score as I will just cut the rubber off and give it back to them. So I was disappointed in the rubber middle not being more durable but the hard plastic it's made from is the strong material they need.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 16, 2026

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