Marine Distributor Cap Kit For Marinized V8 GM Engines With Thunderbolt IV And V HEI Ignition Systems, Mercury Marine OEM Spec Cap With Brass Inserts, Durable PBT And PET Housing, Reliable Marine Ignition Replacement

Marine V8 Distributor Cap Kit for Thunderbolt IV HEI
✔️ OEM ignition cap with brass inserts for corrosion resistance

This marine distributor cap kit is designed for Marinized V8 GM MerCruiser engines with Thunderbolt IV and V HEI ignition systems. The kit includes the cap, rotor, and cap gasket and is built to OEM specs for reliable ignition replacement in saltwater boats.

✅ Fits Marinized V8 MerCruiser engines with Thunderbolt IV and V HEI ignition systems
✅ Cap material is a tough PBT and PET blend to resist warpage
✅ Brass inserts resist corrosion and electrical pitting
✅ Designed to minimize RF interference with onboard electronics
✅ Includes cap, rotor, and cap gasket for a complete replacement
✅ OEM-spec ignition replacement part for MerCruiser applications

💡 What is a marine distributor cap kit used for in MerCruiser engines with Thunderbolt IV?

A handy, dependable ignition maintenance option for saltwater boats.

- Supports proper spark distribution for Thunderbolt IV and V HEI systems - Helps shield onboard electronics from RF interference in marine environments - Includes cap, rotor, and gasket for a complete ignition replacement - OEM-spec parts designed for MerCruiser engine compatibility