Mercury Thunderbolt HEI V-6 Tune-Up Repair Kit

This comprehensive tune-up kit is designed specifically for the Mercury Thunderbolt HEI V-6 engine, ensuring optimal performance and reliability.

• Complete set of components for a thorough tune-up
• Improves engine performance and efficiency
• Easy installation with detailed instructions
• Compatible with Mercury Thunderbolt HEI V-6 engines
• Durable materials for long-lasting reliability