Spark Plug for 2010-2012 Subaru Legacy - NGK 373

NGK 373 spark plug for the 2010-2012 Subaru Legacy H4 2.5L fires the spark that ignites the fuel and air in each cylinder. It is one of the NGK spark plugs with an iridium alloy center electrode and a platinum ground electrode.

• NGK Laser Iridium High Ignitability design with a PSPE tip
• Iridium alloy center electrode, with a density 6x that of platinum and a very high melting point
• Projected square platinum electrode (PSPE) ground electrode for high ignitability and service life in high heat engines
• Solid copper core of 98% pure copper for heat dissipation and conductivity
• Trivalent metal plating with anti-corrosion and anti-seizing properties
• High grade pure alumina ceramic insulator that helps keep the plug from overheating

Quick facts

• Part: NGK 373 spark plug
• Fits: 2010-2012 Subaru Legacy H4 2.5L
• Material: Iridium Platinum
• Condition: New

Misfires, hard starting or poor fuel economy can mean a spark plug is worn. Those signs alone do not prove the plug is the problem, because a weak ignition coil is another common cause.

Fits

This NGK plug is a direct-fit spark plug for the 2010-2012 Subaru Legacy H4 2.5L. The engine takes four, one per cylinder.

Specifications

Interchange: XP5325 · 4506 · 4704 · IKH20TT · PKH20TT · 22041AA760 · SILFR6B8 · 22401AA760 · 22401AA761