As far as i know the 2004 battery box was smaller because the battery was smaller than 2005 onwards.
Ktm 450 battery upgrade.
5 0 out of 5 stars 2.
Mmg motorcycle battery lithium ion replacement for ytz5s for ktm sx f exc exc f series mmg1 2 9 out of 5 stars 3.
This presents a problem when trying to upgrade to a quality battery as the stock battery tray only allows for the stock battery size without cutting.
Like the original poster i had a 2004 450exc and wanted to upgrade to a 05 battery hence i purchased from ktm dealer the bigger box.
Unfortunately the samsung battery used in the 2016 and newer 250 and 450 sx series bikes as well as their husky clones is significantly smaller than any replacement battery on the market.
The battery has a 2 year warranty and i would recommend getting a lithium battery charger.
Each kit includes the oem battery box from the xc f models that use a bigger battery from the factory as well as a new tusk lithium battery.
Amazon s choice for ktm 450 battery ytx5l bs replacement motorcycle battery rechargeable high performance agm sealed maintenance free pirate battery 4 2 out of 5 stars 757.
I know a couple guys that have used regular chargers on other brand lithium batteries and this resulted in a burned down charge and another in a trailer fire.
This is the upgrade for your ktm or husqvarna.
To mount the kit it is as easy as removing your current battery and battery box and replacing it with the new battery and battery box.
Ytx4l bs battery for ktm 520 450 350 300 xc xcf w exc sx f fe exc f motorcycle.
The bigger battery box allows more.
Get it as soon as mon sep 28.