Section 10 (Engine Ignition System (H6DO)): General Description: Specification

2016 Subaru Legacy 2.5iSECTION Specification
WARNING: This page is about a different variant/trim than selected.
Item Specifications
Ignition coil Type FK0368
Ignition system Independent ignition coil
Manufacturer Diamond Electric
Spark plug Manufacturer and type NGK: SILFR6C11
Thread size (diameter, pitch, length) mm 14, 1.25, 26.5
Spark plug gap mm (in) Standard 1.0 - 1.1 (0.039 - 0.043)
Electrode Iridium
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.