Question about Husqvarna Chain Saw 18" 450 Model 966955438
Is there a bar & chain combo that is more aggressive than original that will fit a husqvarna model 450 chainsaw?
A longer bar requires more oil to keep moving parts from overheating. A Husqvarna 450 is not fitted with an adjustable oiler (I know of no Husqvarna homeowner grade saws with adjustable oilers). Current specifications recommend a 13 – 20” bar; given that, the olier has likely been tested and provides enough oil for a bar of that length; no promises!
Any Husqvarna small mount bar will fit your saw. Your saw is configured for a 0.325 pitch chain and there are professional grade chains available that will fit. A bar fitted with a "Sprocket Nose" must also have a 0.325 pitch nose. The more aggressive the chain the greater the chance for kick back of the saw (Please wear full PPE whenever your saw is in operation).
You can find compatible bars and chain (yellow more aggressive) here:
Oregon Bar & Chain Selector
The "Customer Service - FAQs" will likely answer any more questions you have.
If you have more questions or need additional help please reply below and I will get back to you. HTH & Good Luck.
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Posted on Aug 01, 2010
A longer bar will allow you to cut larger trees easier but if you don't need to cut larger diameter trees and just want to cut faster you can get a more aggressive chain but use caution as you should be VERY experienced as the chain has the ability to pull you right into the work if you are not careful! Using a very aggressive chain should only be done by professionals with full safety gear.
Posted on Aug 01, 2010
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Posted on Jan 02, 2017
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