AUTOLITE 4275 Copper Spark Plug

The AUTOLITE 4275 Copper Spark Plug is designed with a full copper core electrode to support performance across operating conditions. Its copper-glass seal bonds the insulator and terminal post to the center electrode, helping provide the required voltage at the spark gap while creating a gas-tight, leak-proof seal.

The multi-rib insulator helps reduce the danger of flash-over, while the one-piece terminal post adds strength. An integrated resistor helps reduce radio frequency interference (RFI) and electrode erosion. The cold-formed steel shell features precision-rolled threads for consistent installation.

Verify all cross-reference listings before purchase to help confirm this AUTOLITE 4275 spark plug is appropriate for your application.

Features:

• Copper-glass seal: Bonds the insulator and terminal post to the center electrode for the required voltage at the spark gap and a gas-tight, leak-proof seal
• Multi-rib insulator: Helps reduce the danger of flash-over
• One-piece terminal post: Adds strength
• Resistor: Helps reduce radio frequency interference (RFI) and electrode erosion
• Cold-formed steel shell: Features precision-rolled threads
• Full copper core electrode: Provides performance across operating conditions
• Cross-reference verification: Verify all cross-reference listings before purchase