MSD 8211 Firewall Feed Thru


  • Prevents voltage leaks
  • 1/2″ of insulation
  • Molded Rynite
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To prevent voltage leaks in passenger compartment mounted coil installations, MSD designed the Firewall Feed-Thru. Molded from Rynite.


  • Absolutely the best way to route spark plug wire through the firewall
Weight 0.1875 lbs
Dimensions 4 × 5 × 2 in



Manufacturer Part Number


MSD Firewall Feed-Thru


Provides 1/2″ of insulaᆳtion to ensure that the coil’s spark reaches the distributor

Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to