Green ALKO wear indicator.
This wear indicator is fitted to the front of the coupling handle with the red wear indicator is fitted to it.
NOTE - on some heads you will need to take a bit out of the back edge to slide it on and glue it onto the head.
This wear indicator fits AK160, AK300, AKS1300, AKS3004 and other ALKO coupling heads.
What it does
When the wear indicator is green, the towball is within the allowable range. When the indicator is red, the towball is at its lowest limit - 49mm or less
Part Number 603655