Spark Plug Wire Set 340 Orange

The MOPAR PERFORMANCE Spark Plug Wire Set 340 Orange is a carbon-suppressed core ignition system engineered for small-block Mopar engines. Designed with OEM-style boots and socket-style connectors, this wire set delivers reliable spark delivery while maintaining electromagnetic shielding to eliminate radio frequency interference—a critical concern in vintage muscle cars and modern Mopar restorations where precision ignition timing directly impacts engine performance and fuel efficiency.

The carbon-suppressed core construction provides superior conductivity compared to standard copper core designs, reducing voltage drop across longer wire runs while the suppression layer prevents spark scatter that degrades combustion efficiency. The orange insulation jacket resists heat cycling and ozone degradation, extending service life in high-temperature engine bays. OEM boot design ensures proper seating on factory spark plug terminals and distributor caps, eliminating the weak connections that cause misfires and rough idle characteristics common in older ignition systems.

This wire set is ideal for small-block Mopar enthusiasts performing engine rebuilds, restorations, or performance upgrades where factory ignition reliability is non-negotiable. Whether you're restoring a 1960s-era muscle car or maintaining a classic Dodge or Plymouth engine, this kit provides OEM-specification spark routing without the premium cost of dealer-sourced components. Compatible with distributor-based ignition systems found in small-block Mopar applications, it serves as a direct replacement for worn or damaged factory wire sets.

MOPAR PERFORMANCE represents Chrysler's original-equipment engineering legacy, meaning this wire set meets the same dimensional and electrical specifications as the components that left the factory floor. For Mopar builders and restorers, choosing OEM-aligned ignition components eliminates compatibility guesswork and ensures predictable engine behavior during break-in and long-term operation.