Genuine Honda Cam Chain Guide
This guide keeps the timing chain in line at the top of the head; once it wears, you’ll get slack, noise, and eventually skipped timing that can take out a motor. This is a wear item and needs to be replaced around 100-150k miles. If you hear rattling or ticking, this is a also a sign of replacement needed.
#4 in illustration
FITMENT:
Most K20/K24 engines