Spark Plug for 2010-2019 Subaru Outback & More - NGK 7505

$23.99
NGK Spark Plug 7505
NGK Spark Plug 7505

Vehicles this part fits
    Part number: 7505
    UPC: 087295175057
    Condition: New
    Weight: 0.12 LBS
    Item Package Quantity: 1
    $23.99
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    NGK Spark Plug P/N:7505
    NGK Spark Plug P/N:7505
    $23.99
    $23.99

    NGK 7505 spark plug for the 2010-2019 Subaru Outback H6 3.6L and other vehicles fires the spark that ignites the air-fuel mixture in each cylinder.

    • Part of the NGK Laser Iridium High Ignitability spark plug line
    • Iridium alloy center electrode, with a density six times that of platinum and a very high melting point
    • Projected square platinum electrode (PSPE) ground electrode shape for ignitability and service life in high-heat engines
    • Solid copper core, 98% pure, for heat dissipation and conductivity
    • Trivalent metal plating for anti-corrosion and anti-seizing, which eases installation and removal

    Quick facts

    • Part: NGK 7505 spark plug
    • Fits: 2010-2019 Subaru Outback H6 3.6L and other vehicles
    • Condition: New

    Hard starting, a rough idle or a misfire can mean a plug is worn, though a coil, an injector or the fuel supply can produce those symptoms too, so find the actual cause before you replace plugs. With the engine off and cool, a removed plug can be inspected for electrode wear and its gap measured against 1.1 mm.

    Fits

    This spark plug also fits the 2010-2019 Subaru Legacy H6 3.6L and the 2010-2014 Subaru Tribeca H6 3.6L. The H6 3.6L has six cylinders and takes one plug in each.

    Specifications

    Fit and size

    • Quantity per vehicle: 6
    • Thread size: M14 - 1.25
    • Hex size: 5/8 in (16 mm)
    • Gap: 0.044 in (1.1 mm)

    Build and materials

    • Metallurgy: iridium, platinum
    • Center electrode: iridium alloy
    • Ground electrode: Projected Square Platinum Electrode (PSPE)
    • Core: solid copper, 98% pure
    • Plating: trivalent metal
    • NGK part number: SILFR6C11
    • Condition: New

    Interchange: SILFR6C11

    Product information is for general reference and may contain errors. See our Disclaimer.

    This part cross-references / interchanges with the following part numbers:

    4506, 4704, IKH20TT, PKH20TT, 22041AA750, 7505, SILFR6C11, 22401AA750, 22401AA751

    Frequently Asked Questions

    Will NGK 7505 work as a spark plug for the 2010-2019 Subaru Outback H6 3.6L?

    Yes. NGK 7505 fits the 2010-2019 Subaru Outback H6 3.6L, and that engine takes six plugs, one per cylinder.

    Is this one of the NGK iridium spark plugs, and what are its electrodes made of?

    Yes. NGK 7505 has an iridium alloy center electrode and a platinum ground electrode in the Projected Square Platinum Electrode (PSPE) shape.

    What gap, thread and hex size does this spark plug have?

    The gap is 0.044 in (1.1 mm). The thread is M14 - 1.25 and the hex is 5/8 in (16 mm).

    Does SILFR6C11 mean the same plug as 7505 among NGK spark plugs?

    Yes. This plug carries both 7505 and SILFR6C11 as NGK numbers, so a search under either one finds the same plug.

    Does this plug have a copper core?

    Yes. The core is solid copper, 98% pure, which gives heat dissipation and conductivity. The plug also has a trivalent metal plating against corrosion and seizing.

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