The C36-2 trimmer head is a two line string head for string cutters and brush cutters. The white ribbed top cover sits over the black base, with a black auto feed center cap between them and a line coming out of each side. The thread is M10x1.0. Two lines keep one working when the other breaks, and the auto feed cap gives more line with a bump when it runs low, with no need to reline. Before fitting, check the old part for the M10 thread and the cover shape, then install as is and cut both lines to the same length. The head is a consumable, so replace it when the cover is dented or the line exits wear loose, instead of letting the damage reach the shaft.

 FAQ 

Q1: Is the C36-2 a single or double line head?

It is a two line head, with one line coming out of each side, so one side keeps cutting when the other breaks.

Q2: How do I check the thread before buying?

This head uses the M10x1.0 thread. Check the old part, or the cutter spec, for the line port thread, since M14 cutters need a different head.

Q3: When should the trimmer head be replaced?

When the cover is dented, the line exits wear loose, or the line keeps breaking in the same spot. A cheap head replaced early saves the shaft and the job.