NGK 93482 Iridium Spark Plug for 2011-19 Subaru Forester/Legacy/Outback/Impreza

Vehicle Fitment

• 2011-2018 Subaru Forester (2.0-2.5 L H4, AWD/4WD)
• 2012-2016 Subaru Impreza (2.0 L H4, AWD)
• 2013-2019 Subaru Legacy (2.5 L H4, AWD)
• 2013-2019 Subaru Outback (2.5 L H4, AWD)
• 2012-2017 Subaru XV Crosstrek (2.0 L H4, AWD)

Features

• Laser iridium center electrode offers long service life and reliable firing
• Fine-wire iridium tip for superior ignitability and combustion stability
• Projected square platinum ground electrode enhances spark performance
• 98 % pure copper core aids rapid heat dissipation for optimal temperature control
• High-grade alumina ceramic insulator for improved dielectric strength and durability
• Triple gasket sealing reduces combustion gas leakage
• Integrated resistor (~5000 Ω) suppresses electrical noise (EMI/RFI)
• Trivalent metal plating for enhanced anti-corrosion and anti-seize performance

Specifications

• Brand: NGK Spark Plugs
• Part Number: 93482 (SILZKAR7B11)
• Thread Diameter: 12 mm x 1.25
• Reach: 26.5 mm (1.04")
• Hex Size: 14 mm (9/16")
• Seat Type: Flat with crush washer
• Pre-Gap: ~1.1 mm (0.044")
• Heat Range: NGK 7
• Resistor: Yes (~5000 Ω)

Included Components

• 1x NGK 93482 Laser Iridium Spark Plug
• 1x Crush washer gasket

Product Description

The NGK 93482 Laser Iridium Spark Plug (service code SILZKAR7B11) is a high-quality OE-equivalent ignition component designed for select Subaru boxer engines. Its laser-welded iridium center electrode and projected platinum ground electrode improve ignitability and extend service life compared to conventional plugs. With a pure copper core and premium ceramic insulator, this plug ensures effective heat transfer and steady spark performance across varied driving conditions, while the built-in resistor helps minimize electrical noise interference with onboard electronics.

Specifically verified for use in 2011-2019 Subaru Forester, Impreza, Legacy, Outback, and XV Crosstrek models equipped with naturally aspirated flat-4 engines, the NGK 93482 plug supports efficient combustion and smoother throttle response. It is engineered to meet or exceed OEM ignition specifications, making it a reliable replacement for worn or aging spark plugs in routine maintenance or service intervals. Always refer to the official vehicle service manual for correct torque and gap recommendations when installing these plugs.