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โ๏ธ Nail the perfect belt tension every time โ because your machine deserves precision.
The OTC 6673 Universal Belt Tension Gauge offers precise, easy-to-read dual scale measurements (foot-pounds and newton meters) to ensure belts are tensioned within manufacturer specs. Crafted from premium aluminum with precision castings, it guarantees long-lasting accuracy across automotive, motorcycle, and industrial applications. Backed by a lifetime warranty, this tool maximizes belt and bearing life, boosting reliability and reducing costly downtime.





| ASIN | B000I198J0 |
| Best Sellers Rank | #90,565 in Automotive ( See Top 100 in Automotive ) #16 in Accessories & Compressors |
| Brand | OTC |
| Brand Name | OTC |
| Customer Reviews | 4.4 out of 5 stars 279 Reviews |
| Global Trade Identification Number | 00731413046124 |
| Included Components | Tension Gauge |
| Item Dimensions | 9.1 x 5.4 x 2.3 inches |
| Item Highlight | Check for Correct Tension on Drive Belts to Ensure Maximum Belt and Bearing Life |
| Item Type Name | Universal Belt Tension Gauge |
| Item Weight | 1.4 pounds |
| Item dimensions L x W x H | 9.1 x 5.4 x 2.3 inches |
| Manufacturer | OTC |
| Material | Aluminum |
| Material Type | Aluminum |
| Model | 6673 |
| Number of Items | 1 |
| Part Number | 6673 |
| UPC | 731413046124 |
| Unit Count | 1 Count |
| Warranty Description | LIFETIME |
T**H
Great tension tool!
This is a top quality tension tool. Easy to use, just follow the directions. Not cheap but very accurate. You get what you pay for.
S**S
You need this tool. Belts belts
Works greatโฆ. If you service your lawn mower with belts you need this tool. Great price and great tool
A**O
You need it as a Automotive Tech
When I first started, the Sears automotive tech technician instructor told us that we needed one of these. Well after five years of ignoring that great advice I finally bought one and realized that I have been a moron and I shouldโve bought one five years ago.
H**H
Game changer
Once I have start using it, I never have broken belt
M**S
Great tool but expensive and large
This is definitely the most accurate way to get the tension of an accessory belt. Compared to the Kriket style gauge, its no contest. I did back to back tests with this and the Kriket, and the Kriket was all over the place depending where you placed it on the belt and how far you depressed it. This had accurate precise readings every time. That being said, its hugely expensive and so large that I needed to remove the undertray of my car (a 45 minute process) in order to use it.
L**4
Well made
Works great for getting belts to the correct tension. It's very easy to use, just kind of bulky so it can be hard to get it in tight areas. You can leave it on the belt while adjusting the tightness, making it really easy to get it to the right tension. s
O**E
Recommended by Badboy Mowers and it doesn't work period in the space they tell you to test
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.
D**.
Only Fits A Limited Type Of Belt
I've been an industrial mechanic for 40 years, now retired. I wanted a tensioner to accurately set my Zero Turn Mower deck and hydraulic trans drive belts. These are both typical V-Belt style construction. Problem is the jaws on this device only open about 7/16 of an inch and these belts will not fit into the device. I'm sure it works fine on flat automotive style timing belts. To open the jaws to the max extent requires A Lot Of Pressure which is even more Challenging in tight spaces. My mower manufacturer even recommends this device for this application which makes no sense?
P**R
Five Stars
fantastic value fast delivery AAA+++
A**R
Five Stars
nice
C**G
Simple and practical tool
good tools
R**N
Great tool and price.
Tool as advertised. Great price.
T**N
Practical and easy to use
Very easy to use and practical tool.
Trustpilot
1 month ago
1 month ago