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OTC 4748 Belt Tension Gauge for Motorcycle Secondary Drive Belts

4.7 4.7 out of 5 stars 980 ratings
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Amazon's Choice in Engine Compression Gauges by OTC
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Purchase options and add-ons

  • Easy to use and read
  • Tool allows for accurate belt tension to be set
  • Use after belt replacement adjustment or wheel service
  • Use on secondary drive belts with 10 pounds specification
› 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
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  • 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 an easy to use and read tool that allows for accurate belt tension to be set after belt replacement, adjustment, or wheel service. Use on secondary drive belts with a 10 lb. spec. Instructions: 1. Position the small O-ring over the 10 lb mark. 2. Position the U-shaped belt cradle against the bottom of the belt at a 90 degree angle and locate the large O-ring to a reference point, record reading. 3. Push upward on the rubber bumper until the small O-ring touches the bottom of the tool body. Re-align the large O-ring to the reference point; difference in the reading is the belt deflection. Refer to service manual for specifications. Value is at the core of the OTC tool and equipment portfolio. For 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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OTC 4748 Belt Tension Gauge for Motorcycle Secondary Drive Belts

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What's in the box

  • Product & Instructions Guide

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    Customer reviews

    4.7 out of 5 stars
    4.7 out of 5
    980 global ratings

    Customers say

    Customers like the quality, value, ease of use, and tension adjustment of the auto accessory. For example, they mention it works well, is inexpensive, and is simple to read. That said, they say it's necessary for adjusting the belt tension.

    AI-generated from the text of customer reviews

    111 customers mention108 positive3 negative

    Customers are satisfied with the quality of the auto accessory. They say it works well for its purpose and is a great tool to have for belt driven bikes. Some say it's useful and a must-have tool.

    "Works great for being what it is" Read more

    "...But it works well enough to get you close." Read more

    "Works great. The 10lb indicator works great. Easy to use. '13 dyna" Read more

    "This tool works great for checking drive belt tension on a Harley. It is accurate and is half the price compared to oem." Read more

    44 customers mention44 positive0 negative

    Customers find the value of the tool to be good for the price. They say it's inexpensive enough that it doesn't make sense to wing it by. Some customers also mention that it does a fine job for its price. Overall, most are satisfied with the value and recommend the product.

    "...The cost of this tool is well worth it considering how much damage can be done by a drive belt that's not tightened to proper specifications...." Read more

    "...It is accurate and is half the price compared to oem." Read more

    "This tool does exactly what it's supposed to for a reasonable price." Read more

    "good for the $" Read more

    43 customers mention37 positive6 negative

    Customers find the auto accessory easy to use. They mention it's a very simple and basic tool, and it'll do the job without any guesswork.

    "...The OTC Tool has clear markings, is easy to use so it takes seconds to check the belt deflection on your motorcycle...." Read more

    "Works great. The 10lb indicator works great. Easy to use. '13 dyna" Read more

    "...It's fairly easy to use, but could use some improvements...." Read more

    "...once so I cannot vouch for its longevity, but seeing that it is a very simple and basic tool, unless you are abusing it, I don't see why it wont..." Read more

    17 customers mention17 positive0 negative

    Customers find the tension adjustment tool useful for adjusting the belt tension on their motorcycle. They say it makes setting the belt a snap, and that it's the approved method of checking drive belt tension.

    "Works great. The 10lb indicator works great. Easy to use. '13 dyna" Read more

    "This tool is a must for adjusting the deflection on your belt drive on your motorcycle." Read more

    "Very good tool! Tension Adjustment is correct ! Markings for Tension Adjustment is Poor !!! Numbers seem like they won’t last long !..." Read more

    "Well made for the price, makes it fairly easy to set belt tension...." Read more

    8 customers mention0 positive8 negative

    Customers are not satisfied with the size of the auto accessory. They mention that the cradle on top didn't fit for their belt as the guard on the bike was too narrow. Some say that the U bracket on the end is too wide for their Harley which has a belt guard.

    "...The only issue I had with it is that the cradle end for the belt is too wide to be used on my FLHTCI with the belt shroud. But no big problem...." Read more

    "A little wide to work on my Electra glide but I’ll made do" Read more

    "...the belt on a Harley-Davidson touring model this does not fit in there without grinder you can adjust it so it does fit" Read more

    "...My only issue is the U bracket on the end is to wide for my Harley which has a belt guard. I just took the bracket off and it worked fine." Read more

    Top reviews from the United States

    scot hansen
    5.0 out of 5 stars Used on my 2015 Indian roadmaster
    Reviewed in the United States on April 19, 2024
    Verified Purchase
    Works great for being what it is
    Helpful
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    T. Webb
    5.0 out of 5 stars If you have a Belt driven motorcycle, you NEED this
    Reviewed in the United States on May 14, 2022
    Verified Purchase
    If you have a belt driven motorcycle with 10 lbs tension check for deflection you need this tool. I looked at Harley Davidson and some other manufacturers before going with the OTC. The OTC Tool has clear markings, is easy to use so it takes seconds to check the belt deflection on your motorcycle. The cost of this tool is well worth it considering how much damage can be done by a drive belt that's not tightened to proper specifications. Don't guess , use the right tool !
    Helpful
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    Amazon Customer
    4.0 out of 5 stars Decent
    Reviewed in the United States on August 8, 2022
    Verified Purchase
    Not really accurate, but close enough. I wish it had a stop that you could set or at least a click you can feel at set pressure. But it works well enough to get you close.
    One person found this helpful
    Helpful
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    Amazon Customer
    5.0 out of 5 stars Great
    Reviewed in the United States on August 26, 2023
    Verified Purchase
    Works great. The 10lb indicator works great. Easy to use. '13 dyna
    Helpful
     Report
    Josh Diehl
    5.0 out of 5 stars Works great
    Reviewed in the United States on February 19, 2023
    Verified Purchase
    This tool works great for checking drive belt tension on a Harley. It is accurate and is half the price compared to oem.
    Helpful
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    D. J. M.
    5.0 out of 5 stars Decent Tool
    Reviewed in the United States on April 14, 2021
    Verified Purchase
    It's a useful and pretty much must-have tool if you have a belt-drive motorcycle and want to do some of the maintenance yourself. It's fairly easy to use, but could use some improvements. The 10lb mark is hard to see and while it has an o-ring to help sight it, I would imagine overtime the o-ring will slip easier, if not break off. Still, I recommend it because it will get the job done and pay for itself the first use.
    Helpful
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    Rick Jolly
    5.0 out of 5 stars Great tool for adjusting your drive belt on your motorcycle
    Reviewed in the United States on August 2, 2023
    Verified Purchase
    This tool is a must for adjusting the deflection on your belt drive on your motorcycle.
    Helpful
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    M. Mughal
    5.0 out of 5 stars Works as it should
    Reviewed in the United States on March 2, 2020
    Verified Purchase
    Got this to adjust the drive belt for my Harley Davidson Night Rod. This tool is well built, simple, works perfectly well and as designed. For the price, you just can beat it. The OEM HD tool is way pricier and in my opinion, exactly the same thing. I have only used the tool once so I cannot vouch for its longevity, but seeing that it is a very simple and basic tool, unless you are abusing it, I don't see why it wont last you many years.
    Helpful
     Report

    Top reviews from other countries

    Translate all reviews to English
    Linda Barratt
    5.0 out of 5 stars Works well
    Reviewed in Canada on May 19, 2023
    Verified Purchase
    Arrived as promised. Used it a couple times now. It makes adjusting drive belt on HD a diy job
    Report
    JORGE M.
    5.0 out of 5 stars Buen producto
    Reviewed in Mexico on May 25, 2022
    Verified Purchase
    Buen producto buena calidad justo lo que yo esperaba, cumplió mis espectativas.
    Report
    Wyatt Evans
    5.0 out of 5 stars Great product
    Reviewed in Canada on June 7, 2020
    Verified Purchase
    This product looks great, works great and was what it said it was all for a great price
    Report
    Adolfo M.
    5.0 out of 5 stars Excelente
    Reviewed in Mexico on October 28, 2019
    Verified Purchase
    Funciona de maravilla! a mitad de precio de lo que cuesta en la agencia
    Report
    Yvon
    4.0 out of 5 stars Tool
    Reviewed in Canada on February 8, 2023
    Verified Purchase
    Good tool for belt tension
    Report