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Review on Distributor MerCruiser Thunderbolt Ignition 815407Q5 Replacement Parts by Mike Robinson

Revainrating 3 out of 5

ventilation arch. best in cap and rotor kit

The plastic breather had a different thread than the distributor cap which made installing the breather impossible. I had to modify the pipe and glue it in place.

Pros
  • Automotive
Cons
  • No