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OTC 6673 Belt Tension Gauge, Universal

4.4 4.4 out of 5 stars 234 ratings
$178.99
FREE Returns
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Purchase options and add-ons

Brand OTC
Item dimensions L x W x H 9.1 x 5.4 x 2.3 inches
Item Weight 1 Grams

About this item

  • OTC's Belt Tension Gauge is designed to allow you to properly check belt tension on drive belts
  • Correct tension ensures maximum belt and bearing life
  • Easy to read dual scale reads 30-180 lbs. (2.5-15 ft. lbs.) and 130-800 Newtons
  • High-grade materials ensure quality performance over the lifetime of the tool
  • For use with belts on cars, trucks, SUVs, and motorcycles
› See more product details

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Top Brand: OTC

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From the manufacturer

OTC Otawonna Tools Equipment HD Specialty Service Professional Technician Diagnostic
OTC A Proud Heritage Since 1925 Quality Tools and Equipment Professional Service Specialty Tool

Proud Heritage of Manufacturing Quality Tools and Equipment
Steve Cross

Drop Forge Operator of 40 years

“I’M PROUD OF THE OTC BRAND. I’M MAKING A BRAND THAT’S BEEN AROUND A LONG TIME. ANY GUY THAT’S WORKED ON A CAR HAS HEARD OF THE OTC BRAND, AND THEY PROBABLY HAVE USED IT.”

At OTC, we're proud of our heritage and those that have built it with us.

OTC - Proudly Serving Professional Technicians for Almost a Century

What We Like Most About Technicians is Their Work Ethic

Technicians are problem solvers who aren’t afraid of sweat on their brow and grease on their hands. They provide high quality services that demand high quality tools. When they need a reliable tool, they know they can depend on OTC tools to deliver.

Owatonna Tool Company for the long haul — proudly designing and manufacturing American specialty service tools, diagnostics and shop equipment since 1925.

  • Automotive Specialty Tools
  • Heavy Duty Truck Service Tools
  • Heavy Duty Shop Tools
  • Motorcycle Tools
  • Electronic Diagnostic Tools
  • and so much more
OTC Shop Equipment Power Train Lifts Stands Cranes Presses DPF Equipment
OTC Tools Special Service Tools automobiles car truck motorcycle
OTC Professional Diagnostics Encore Scan Tool

Product Description

OTC's Belt Tension Gauge is designed to allow you to properly check belt tension on drive belts. Correct tension ensures maximum belt and bearing life. Easy to read dual scale reads 30-180 lbs. (2.5-15 ft. lbs.) and 130-800 Newtons. High-grade materials ensure quality performance over the lifetime of the tool. For use with belts on cars, trucks, SUVs, and motorcycles. Value is at the core of the OTC tool and equipment portfolio. Whether it’s a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether it’s a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians’ productivity and shop profits.

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Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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OTC 6673 Belt Tension Gauge, Universal

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What's in the box

  • Unit^Instruction Guide

    • Product guides and documents

    User Manual (PDF)

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    Details
    Added to Cart
    Details
    Added to Cart
    Details
    Added to Cart
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    Price$178.99$23.12$15.99$14.99
    Delivery
    —
    Get it as soon as Saturday, May 11
    Get it as soon as Saturday, May 11
    Get it as soon as Saturday, May 11
    Customer Ratings
    4.44.4 out of 5 stars234
    4.64.6 out of 5 stars482
    4.74.7 out of 5 stars1,589
    4.44.4 out of 5 stars133
    Accuracy
    3.7
    4.2
    4.6
    4.3
    Value for money
    3.5
    4.5
    4.7
    4.4
    Easy to use
    3.0
    4.5
    4.7
    4.5
    Easy to read
    4.0
    —
    5.0
    —
    Sold By
    Amazon.com
    ARES TOOL
    Marketplace Pros
    Sosher-US
    material
    —
    Rubber
    Metal
    —
    weight
    1 grams
    10 pounds
    0.08 kilograms
    —

    Looking for specific info?

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    234 global ratings

    Customers say

    Customers like the ease of use, quality and performance of the electromechanical gauge. They mention that it works great for setting belt tension on exercise equipment and that it's accurate. Some complain about the size, saying that it is too big to fit over the belt without hitting other parts. Opinions are mixed on value.

    AI-generated from the text of customer reviews

    24 customers mention19 positive5 negative

    Customers find the electromechanical gauge easy to use. They say it's simple and accurate. They also appreciate the minimal instructions and the fact that it takes the guesswork out of setting belt tension.

    "Great tool perfectly sets tension. Far better than thumb pressure and a ruler. One reviewer says it only opens to 1/16 inch. Not true...." Read more

    "Easy to use and seemingly accurate. Not good in tight spaces but other than that was very good." Read more

    "...This tool helps you set belt tension according to manufacturer's specs rather than "feels about right"...." Read more

    "...and the tension was way under the minimum per the manual...." Read more

    22 customers mention19 positive3 negative

    Customers like the quality of the electromechanical gauge. For example, they say it's well built, accurate, and easy to use. Some say it works as expected.

    "...Too bad the reviewer wasn't strong enough to use this tool. Very well made. Takes only a second to use. Have used hundreds of times over past 5 years." Read more

    "...It's a well built tool that gets used every other day around here." Read more

    "The tool is reasonably well made, but it's simply bizarre that the gauge face is facing backwards...." Read more

    "...Well built tool." Read more

    16 customers mention13 positive3 negative

    Customers like the performance of the electromechanical gauge. They mention that it works well and is great for setting belt tension on exercise equipment.

    "Works great for setting belt tension on exercise equipment (treadmills, ellipticals, bikes, etc)." Read more

    "Works great, just wish my van was easier to use it on (no fault of the tool)...." Read more

    "Works well. Although it was too big to measure the tension on my 2000 Civic's power steering belt. It wouldn't fit in that tiny space." Read more

    "Works great, easy to use & takes the guessing game out of wondering if you got the right tension on your belt." Read more

    5 customers mention5 positive0 negative

    Customers are satisfied with the accuracy of the electromechanical gauge. They mention that it is amazingly simple and a great product.

    "Easy to use and seemingly accurate. Not good in tight spaces but other than that was very good." Read more

    "...This had accurate precise readings every time...." Read more

    "great gauge. a little spendy." Read more

    "Amazingly simple and amazingly accurate! A little on the expensive side, but well worth the cost!!" Read more

    19 customers mention9 positive10 negative

    Customers have mixed opinions about the value of the electromechanical gauge. Some mention that it's good for the price, while others say that it’s too expensive for quality.

    "...I like that it comes with a calibration paper, and the price was good." Read more

    "These are way over priced but I bought it anyway as I needed to be able to test my belt tension on my 48 inch Badboy Zero Turn...." Read more

    "Replaced more expensive tool and provided exactly same funNn" Read more

    "It is quite expensive, but it gets the job done." Read more

    11 customers mention0 positive11 negative

    Customers find the size of the electromechanical gauge too big to fit over the belt without hitting other parts. They also say it's difficult to fit into tight spaces and not good for modern vehicles. Some say it is a little bulky to use in tight spots.

    "Easy to use and seemingly accurate. Not good in tight spaces but other than that was very good." Read more

    "...this tension tester is the one recommended and the belt barely fits to make the test. Not happy with it at all...." Read more

    "...The tool is also very large so I'm lucky if I can even get it on a modern car...." Read more

    "...The only drawback is that its quite large and is hard to fit in tight spaces if you have a cramped engine space." Read more

    5 customers mention0 positive5 negative

    Customers are dissatisfied with the material of the electromechanical gauge. They mention that it cracks easily, disintegrates, and breaks easily. Some customers also say that the plunger guide broke apart after the first couple of times. Overall, some customers feel the product is not built very well and is not worth the price.

    "...delivered but based on what appeared to be a mfg defect, the plunger guide broke apart after the first couple of times that i depressed the plunger...." Read more

    "...Open the box again to use the tool and discover that it had self destructed. The plastic fastener at the bottom of the tool had just disintegrated...." Read more

    "While it does what its made for. It's not build very well. Overall not worth the price. It's a $20 tool at most" Read more

    "In the device there is a crack in the plastic cap.Buying with international delivery. Change is now very expensive...." Read more

    Disposable Tool
    1 Star
    Disposable Tool
    Tool worked first time out of the box. Placed it back into it’s original box until needed again. Open the box again to use the tool and discover that it had self destructed. The plastic fastener at the bottom of the tool had just disintegrated. Called the manufacturer and was told to bad so sad, buy another one we don’t repair them. So if you’re looking for a disposable tool buy this one. Or just get going really fast in your car open the window and throw your money out, it’s the same result.
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    Top reviews from the United States

    D. Smith
    5.0 out of 5 stars Very well made. Accepts thick serpentine belts.
    Reviewed in the United States on November 9, 2013
    Verified Purchase
    Great tool perfectly sets tension. Far better than thumb pressure and a ruler. One reviewer says it only opens to 1/16 inch. Not true. There is a lot of spring tension in this device. You have to give the tool a firm squeeze to get it to open it up. Too bad the reviewer wasn't strong enough to use this tool. Very well made. Takes only a second to use. Have used hundreds of times over past 5 years.
    One person found this helpful
    Helpful
     Report
    Colorado Critic
    5.0 out of 5 stars Works great
    Reviewed in the United States on May 6, 2023
    Verified Purchase
    Works great for setting belt tension on exercise equipment (treadmills, ellipticals, bikes, etc).
    Helpful
     Report
    Roger jackson
    4.0 out of 5 stars Good for the money
    Reviewed in the United States on November 14, 2021
    Verified Purchase
    Easy to use and seemingly accurate. Not good in tight spaces but other than that was very good.
    Helpful
     Report
    Old Marine War Horse
    5.0 out of 5 stars Recommended by Badboy Mowers and it doesn't work period in the space they tell you to test
    Reviewed in the United States on June 12, 2019
    Verified Purchase
    These are way over priced but I bought it anyway as I needed to be able to test my belt tension on my 48 inch Badboy Zero Turn. Don't look to Badboy to see where to test the belt tension on the 48 inch Badboy Zero Turn. It is not possible to test it in the location they tell you too. Besides this tension tester is the one recommended and the belt barely fits to make the test. Not happy with it at all. Have learned though don't believe the vendor of the product when they show you in the manual picture where to make the test.
    8 people found this helpful
    Helpful
     Report
    Michael Thompson
    5.0 out of 5 stars I'm a car mechanic. It's kind of a large ...
    Reviewed in the United States on August 19, 2016
    Verified Purchase
    I'm a car mechanic. It's kind of a large tool to fit in some cramped engine bays. 95% of the time I seem to be able to get it hooked on to the belt so I can take an accurate measurement. For the vehicles that I can't measure, this tool keeps my hand calibrated which has stopped me from getting belt tension too loose, which was my former tendency. It's a well built tool that gets used every other day around here.
    6 people found this helpful
    Helpful
     Report
    Yoddler
    3.0 out of 5 stars Too large for modern vehicles
    Reviewed in the United States on August 18, 2021
    Verified Purchase
    The tool is reasonably well made, but it's simply bizarre that the gauge face is facing backwards. On very few vehicles can you slip this tool on from the back of the belt which is required with this tool. The tool is also very large so I'm lucky if I can even get it on a modern car.

    A better design would have been to turn the legs around opposite thier current orientation and extend them out an inch. That would work on may more cars.
    6 people found this helpful
    Helpful
     Report
    Fribbitz
    5.0 out of 5 stars great tool that i would buy again!
    Reviewed in the United States on February 15, 2018
    Verified Purchase
    i bought this to use on our coach based on the recommendation of a couple of professional mechanics.

    the first order was promptly delivered but based on what appeared to be a mfg defect, the plunger guide broke apart after the first couple of times that i depressed the plunger. i filed a return / replace with amazon / the vendor and the vendor responded immediately apologizing for the problem and said they would ship a replacement asap. the new unit arrived two days later.

    i used it yesterday on my coach belts and it worked just as expected on the belts i can easily get at. truth be told, i can't seem to access the serpentine belt as it's too close to engine block / various components so i'll have to (a) buy a different type of tension gauge or (b) solely rely on the new tensioner i'm installing to do its job.
    4 people found this helpful
    Helpful
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    Ima Outlaw
    5.0 out of 5 stars Simple to use for my fabricated serpentine system
    Reviewed in the United States on December 30, 2020
    Verified Purchase
    I have a hotrod that I fabricated a serpentine belt system and it doesn't have a belt tensioner.
    I did as someone else mentioned. I put this on the serpentine belt, then just tightened the turnbuckle until the needle got to "New Belt" on the scale. I like not having to guess the tension by the old "wiggle" method.
    I like that it comes with a calibration paper, and the price was good.
    Helpful
     Report

    Top reviews from other countries

    George Dillon
    5.0 out of 5 stars worked great
    Reviewed in Canada on March 5, 2020
    Verified Purchase
    Very well built tool and worked exactly as described
    One person found this helpful
     Report
    Amazon Customer
    5.0 out of 5 stars Five Stars
    Reviewed in India on September 17, 2016
    Verified Purchase
    nice
    Report
    peter
    5.0 out of 5 stars Five Stars
    Reviewed in the United Kingdom on April 18, 2016
    Verified Purchase
    fantastic value fast delivery AAA+++
    Report
    thierry Romain
    5.0 out of 5 stars Practical and easy to use
    Reviewed in Canada on December 1, 2020
    Verified Purchase
    Very easy to use and practical tool.
    Report
    Brock R.
    4.0 out of 5 stars I'm very pleased with the quality
    Reviewed in Canada on May 23, 2018
    Verified Purchase
    This tool feels solid when you hold. I'm very pleased with the quality.
    Report