Husqvarna chainsaw 445 made with 450 engine?

[millemk]

I purchased a Husqvarna 445 the other day after comparing to the model 450. Interestingly, I found that this 445 appears to have the larger 450 engine. What I've found is that although the serial number tag does show the model 445, the other mitigating observations are 1) reference to 50 cc engine size on the emissions sticker, 2) "44" ink stamp on top of power head near spark plug (indicating 44 mm bore dia, of model 450 vrs 42 as found with 445 model), the enclosed operators manual shows 50.2 cc cylinder volume and 44 mm bore for all 4 models 445, 445e, 450e and 450. This manual is number 1154257-49 dated 2011-04-13 vrs previous dated manuals which show a difference in size between 445 vrs 450.

This model 445 has a build date last yr 2015. This is a new unit, not refurb.

Has anyone else observed this similarity between 445 vrs 450? Has Husqvarna made a change in production parts to simplify their assembly with same components?

See attached picture of the "44" ink stamp.

 

[BGE541]

Looks like a score if that's true, a little attention and work and those saws can wake up!

 

[millemk]

What would you recommend to "wake up" the saw?

I've used chainsaws for the better part of 40 some years, with my other remaining stock of 3 saws old Homelites which have worked OK but not stellar. I wanted a newer saw, middle of the road, light enough to handle for this old body so the Husky 445 / 450 is properly sized for me.

 

[Sebago Guide]

I have a 450. It was my first new saw and my most powerful until I bought a 372xp. I love the 450. My neighbor one day asked me if I wanted his chainsaw which he never used and it leaked oil. It was a mint 445! 18 inch bar as well. Been putting that to use as well.

 

[7sleeper]

It wouldn't suprise me one second if they were VERY similar. BUT just a different piston and all your hopes are down the drain...
There are MANY examples from Husqvarna. The 550/545 line f.e. exaclty same cylinder BUT different flow channels mounted on the outside. Of course with electronics it is also easy to achieve the desired power difference/ engine characteristic easily.

So sorry I highly doubt that you have a 450 in your hands...

7

 

[KYsawman]

They very well could have started useing all the same jugs on that line of saws. It could be something like the ne350/ 353 with the ne350 using the dished piston and the 353 using the flat top. the cylinder is the same part number, helps in manufacturing, less parts to buy.

 

[Chris-PA]

Poulan has been using 42cc engines in all their saws labeled 42 and less for years. The PP5020 and PP4818 have the same 50cc engine. It doesn't cost any more to make a larger displacement version of a given engine design, what costs more is having more variations to deal with.

 

[rmh3481]

Chris is right. Poulan at one time made 3 different saws all with the same engine. If you look real close you will see that the model no changes but the engine size doesnt.

 

[Eric Riddle]

I purchased a Husqvarna 445 the other day after comparing to the model 450. Interestingly, I found that this 445 appears to have the larger 450 engine. What I've found is that although the serial number tag does show the model 445, the other mitigating observations are 1) reference to 50 cc engine size on the emissions sticker, 2) "44" ink stamp on top of power head near spark plug (indicating 44 mm bore dia, of model 450 vrs 42 as found with 445 model), the enclosed operators manual shows 50.2 cc cylinder volume and 44 mm bore for all 4 models 445, 445e, 450e and 450. This manual is number 1154257-49 dated 2011-04-13 vrs previous dated manuals which show a difference in size between 445 vrs 450.

This model 445 has a build date last yr 2015. This is a new unit, not refurb.

Has anyone else observed this similarity between 445 vrs 450? Has Husqvarna made a change in production parts to simplify their assembly with same components?

See attached picture of the "44" ink stamp.

I bought the same exact saw a 445 with a 450 motor what my dealer told me was that they ran out of 445 motors and used the 450 motors to finish out the orders idk if that's true or not just what my husqvarna dealer told me