Product Description:

The NGK TR55 was used in the Indmar 8.1L 8100 Vortec engine. The NGK V-Power Spark Plugs provides economical performance and improved ignitability over standard NGK Spark Plugs original equipment manufacturer and racer approved.

Product Specs:

• NGK TR55 Part# 3951
• Used on Indmar 8.1L Engines – Gap to .060
• Lowers ignition system voltage requirements
• Greater ignitability and performance over conventional spark plugs
• Trivalent Metal Plating has superior anti-corrosion and anti-seizing properties
• Increased fuel economy and lower emissions
• Highly durable against electrical and chemical wear
• Good performance spark plug
• Sold Individually

Bakes Resource Library:

• Indmar Spark Plug & Spark Plug Wire Reference Chart (PDF)