Sprocket Idler 10 tooth 1/2" x 1/8" with a 3/8" ID.
Works with:
410 Chain 1/2" x 1/8"
# 43 Chain 1/2" x 1/8"
# 65 Chain 1/2" x 1/8"
410H Chain 1/2" x 1/8" (has 20% thicker plates and pins)
415 Chain 1/2" x 3/16"
415H Chain 1/2" x 3/16" (has 20% thicker plates and pins)
# 41 Chain 1/2" x 1/4"
# 40 Chain 1/2" x 5/16"
420 Chain
Ref. # 34-810 & 13-736