Chain BAR TENSIONER Adjuster Kit Fits CS-370 CS-400 CS-4200ES CS-420ES CS-450 CS-450P CS-510 CS-520 CS-530 CS-680 CS-680S QV-680

The Chain BAR TENSIONER Adjuster Kit Set Assembly for Echo CS-400 and CS-450 chainsaws has received mixed feedback from customers. While some customers have had a positive experience with this product, others have encountered issues with its compatibility and durability. Positive reviews mention that the kit is an exact replacement for their Echo CS-400 chainsaw and fits perfectly. Customers have also found it easy to install and fix their chainsaw's chain tensioning issue. However, negative reviews highlight issues with the kit's compatibility and durability. One customer reported that the tensioner screw head was too small for their Echo CS-450 chainsaw and ended up damaging the sprocket cover. Another customer mentioned that the tensioner screw cracked at the screw head after just a few hours of use. There is also a review from a customer who purchased this kit based on positive reviews but found that the screw bit was broken, making it unable to tighten the chain. Luckily, they were able to use the old part instead. Overall, while some customers have had success with this product, it is important to be aware of the potential compatibility and durability issues.