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The Best Serpentine Belt Tool

Last updated on August 10, 2022

We looked at the top 12 Serpentine Belt Tools and dug through the reviews from 2 of the most popular review sites including and more. The result is a ranking of the best Serpentine Belt Tools.

Best Serpentine Belt Tool

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Our Picks For The Top Serpentine Belt Tools

Show Contents
Our Take
Experts Included
Pros
Cons
  Top Pick

JEGS Performance Serpentine Belt Tools, 8-Piece

Don't Waste Your Money Seal of Approval

JEGS

Performance Serpentine Belt Tools, 8-Piece

Overall Take

Saves TimeThis serpentine belt tool has universal compatibility and can be used with just about any type of vehicle.

Experts Included
DWYM Tools Experts plus . Along with user reviews from Amazon.
  Runner Up

Autocraft Tension Releasing Serpentine Belt Tools, 8-Piece

Autocraft

Tension Releasing Serpentine Belt Tools, 8-Piece

Overall Take

Most EconomicalYou won't have any trouble sticking to a budget when you go with this affordably priced serpentine belt tool.

Experts Included
DWYM Tools Experts plus . Along with user reviews from Amazon.
  We Also Like

Powerbuilt 648629 Easy Read Serpentine Belt Tool, 13-Piece

Powerbuilt

Easy Read Serpentine Belt Tool, 13-Piece

Overall Take

Well-Built ToolSturdy materials make this serpentine belt tool one to last.

Experts Included
DWYM Tools Experts plus . Along with user reviews from Amazon and Home Depot.
  Strong Contender

OEM TOOLS 25149 Multi-Vehicle Serpentine Belt Tool Set, 6-Piece

OEM TOOLS

Multi-Vehicle Serpentine Belt Tool Set, 6-Piece

Overall Take

Plenty of LengthThe bar and extension tool here offer plenty of reach.

Experts Included
DWYM Tools Experts plus Best Reviews Guide. Along with user reviews from Amazon.
Don't just take for granted what one reviewer says. Along with our own experts, DWYM analyzes the top expert reviews of the leading products and generates a score you can actually trust.
19

Products Considered

We identified the majority of the serpentine belt tools available to purchase.
12

Products Analyzed

We then selected the leading and most popular products for our team to review.

View All Product Rankings

2

Expert Reviews Included

In addition to our expert reviews, we also incorporate feedback and analysis of some of the most respected sources including: and Best Reviews Guide.

3,323

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including

Our experts reviewed the top 12 Serpentine Belt Tools and also dug through the reviews from 2 of the most popular review sites including and more. The result is a ranking of the best of the best Serpentine Belt Tools.

DWYM is your trusted roduct review source. Our team reviews thousands of product reviews from the trusted top experts and combines them into one easy-to-understand score. Learn more.

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Look for the DWYM seal for products that are the best in their category.

The Best Overall

JEGS Performance Serpentine Belt Tools, 8-Piece

User Summarized Score

8.8
616 user reviews

Our Take

Reaching into tight spaces isn't a problem for this serpentine belt tool. The rod comes with seven attachments, so you won't need to make any additional purchases to use the tool. It's also highly recommended by reviewers, who report the tool works as advertised.


The Best Bang For Your Buck

Autocraft Tension Releasing Serpentine Belt Tools, 8-Piece

User Summarized Score

8.4
106 user reviews

Our Take

Reduce the time you spend working on your car with this serpentine belt tool. It's designed to push the tensioner pulley upward with ease, so you can quickly remove the belt. Also included with this kit are 13, 14 and 15-millimeter crowfoot wrenches.

Overall Product Rankings

Our Serpentine Belt Tool Findings


JEGS Performance Serpentine Belt Tools, 8-Piece

What We Liked: Reaching into tight spaces isn’t a problem for this serpentine belt tool. The rod comes with seven attachments, so you won’t need to make any additional purchases to use the tool. It’s also highly recommended by reviewers, who report the tool works as advertised.


Autocraft Tension Releasing Serpentine Belt Tools, 8-Piece

What We Liked: Reduce the time you spend working on your car with this serpentine belt tool. It’s designed to push the tensioner pulley upward with ease, so you can quickly remove the belt. Also included with this kit are 13, 14 and 15-millimeter crowfoot wrenches.


Powerbuilt 648629 Easy Read Serpentine Belt Tool, 13-Piece

What We Liked: The main tool in this kit is built to last from forged steel. The case is likewise sturdy, and makes the various attachments easy to find. The extensions and bar are both low profile and can handle well in tight spaces.


OEM TOOLS 25149 Multi-Vehicle Serpentine Belt Tool Set, 6-Piece

What We Liked: The grip on this serpentine belt tool makes tough jobs a bit easier. The length of the bar is also an asset, especially when you add the extension. Both are compatible with 1/2 inch and 3/4 inch square drives.


Performance Tool W89716 Spring Loaded Serpentine Belt Tool, 16-Piece

What We Liked: This tools is equipped with several interchangeable extension bars, enabling users to reach into most any space. Each extension bar is versatile in themselves, with both 15 and 16 mm bolts. The design makes it easy to configure no matter what belt system you’re working with.

Our Serpentine Belt Tool Buying Guide

There are tools in a mechanic’s garage that are absolutely necessary and are well suited to a variety of jobs: The ratchet wrench, pliers, a crowbar and the like. Let’s be clear that a serpentine belt tool is not one of those items. It’s specifically designed for one job, although it can be surprisingly adaptable (especially in cramped spaces). But ask any mechanic who has had to that difficult job and they’ll swear by this deceptively simple bar.

First, a little background on the serpentine belt. This aptly-named strip of reinforced rubber is an essential part of the system that drives any component not powered directly by the car’s engine. Most often, that includes but is not limited to the alternator, power steering, emissions control systems and the water pump. As you can imagine, things can go south very quickly if this belt breaks or slips off its pulleys — but it does happen.

The problem is that replacing this simple belt can be a time-consuming activity for any professional mechanic, not to mention an amateur one. The belt snakes over a series of pulleys that are attached to the accessories that it powers, and those pulleys are usually placed far apart in cramped areas towards the front of the engine compartment. In most cars, there is a tension mechanism that you can adjust with a wrench, thereby loosening the belt. Mechanics might need to remove several components like the wheel well or engine cover in order to get enough elbow room to loosen that tensioner — if they’re doing it the hard way.

The easy way is to use a serpentine belt tool. Bear in mind there are actually two types of serpentine belt tools: One specifically designed for getting to and adjusting that pesky tensioner, and the other to help you grab and place the belt.

In its most basic form, the first kind is a long, thin bar with a drive square on one end. Once you put the correct socket on, you’ve got a wrench that can extend down into the hard-to-reach areas under the hood. You can use it to adjust the tensioner without having to take half your car apart, and that can save a lot of time and sweat.

These tools will often come in kits that include not just an array of common sockets for the job, but one or more extension bars. In some cars, the tensioner isn’t just placed in a tight spot; it can also be in an awkward one. Extension bars can be added to the end of a serpentine belt tool, allowing you to get leverage from a variety of angles. In many cases, you can even fasten a standard wrench onto the end of the tool.

The second kind of serpentine belt tool is used not to loosen the pulleys, but to manipulate the belt itself. Serpentine belts can wind across many pulleys in spots that are even more difficult to access than the tensioner. A serpentine belt installation tool is a long rod with a two or three-pronged fork at the end. This fork is situated at a right angle to the main bar, and the tines are meant to fit between the grooves in the belt. This makes it much easier to grab and stretch over pulleys without having to actually reach them.

In either case, you’ll want it made of sturdy metal. That’s especially true for the first type of serpentine belt tool, which is going to be subject to a lot of pushing and pulling. A selection of the different socket sizes is a big plus, especially if you plan to work on more vehicles than just your own. And don’t overlook the grip: A non-slip rubber handle can make all the difference when you’re leaning into a too-tight tensioner.

DWYM Fun Fact

Serpentine belts are fairly ubiquitous these days, but they’re actually a fairly recent innovation. The first cars to use a serpentine belt were Ford Mustangs in the late 1970s, thanks to the design of inventor Jim Vance. They quickly caught on, and by the mid-80s were commonplace in most cars.

The Serpentine Belt Tool Tips and Advice

It’s typically pretty easy to tell if your serpentine belt needs to replaced in the first place. There are even tiny gauges that can measure the acceptable level of wear in your grooves if you really want to do your own diagnosis. But while you’re looking for wear, check your tensioner arm first by giving it a look while the engine is running. A smoothly-operating tensioner should run without wobbling in the belt at all, though the tensioner itself might vibrate slightly. If the tensioner arm is moving side to side by 1/4 inch or more, you may want to have it replaced before it puts more wear onto a new serpentine belt.