Replacement distributor cap for GM-based MerCruiser engines with Thunderbolt ignition. Constructed with high-quality PBT and PET plastics for superior stiffness and resistance to thermal cracking. Solid brass inserts ensure dependable electrical contact and long-lasting performance.
- Fits GM V8 engines with Thunderbolt IV and V HEI ignition systems
- Made from a blend of PBT and PET plastics to prevent warpage
- Solid brass inserts resist corrosion and electrical pitting
- Designed to resist RFI interference with onboard electronics
- Produced to meet original equipment manufacturer specifications
