Spark Plug for 2000-2009 Subaru Outback & More - DENSO 3443

$15.99

Vehicles this part fits

    Part number: 3443
    UPC: 042511034433
    Condition: New
    Weight: 0.10 LBS
    Item Package Quantity: 1
    $15.99
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    DENSO Auto Parts Spark Plug P/N:3443
    DENSO Auto Parts Spark Plug P/N:3443
    $15.99
    $15.99

    DENSO Auto Parts 3443 spark plug for the 2000-2009 Subaru Outback H4 2.5L and other vehicles ignites the air-fuel mixture in each cylinder. This Iridium Long-Life plug is manufactured to OE performance, durability and emissions standards.

    • DENSO's patented iridium alloy is over 90% iridium mixed with small amounts of rhodium to reduce oxidation
    • Durability of over 110,000 miles
    • Needle-to-needle (SIP) type for late model applications
    • Platinum chip ground electrode tip on a nickel core, with an iridium tip on a copper-core center electrode

    Quick facts

    • Part: DENSO Auto Parts 3443 spark plug
    • Fits: 2000-2009 Subaru Outback H4 2.5L and other vehicles
    • Condition: New

    Worn plugs can show up as hard starting, a rough idle or a misfire. Before you replace them, rule out a weak coil, damaged wiring or a fuel problem, since any of these can also make an engine misfire. Each engine takes one plug per cylinder.

    Fits

    These are Subaru Outback spark plugs for the 2000-2009 H4 2.5L. The 1998-2004 Subaru Forester H4 2.5L and the 1999-2000 Honda Civic 4-cylinder 1.6L also take this plug, along with many other vehicles.

    Specifications

    Fit and size

    • Thread diameter: 14.0 mm
    • Reach: 19.0 mm
    • Hex size: 16 mm
    • Seat type: Flat
    • Pre-gap size: 1.1 mm
    • Manufacturer heat range: 16

    Build and materials

    • Center electrode tip: Iridium, on a copper core
    • Ground electrode tip: Platinum chip, on a nickel core
    • Ground configuration: Standard, 1 ground electrode
    • Resistance: 5000 ohms
    • Condition: New
    • Country of origin: Japan

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

    Frequently Asked Questions

    Are these Subaru Forester spark plugs correct for the 1998-2004 H4 2.5L?

    Yes. DENSO Auto Parts 3443 fits the 1998-2004 Subaru Forester H4 2.5L, which takes four plugs. If your car is not named here, look it up in the Vehicles it fits section.

    Is this the right Honda Civic spark plug for the 1999-2000 4-cylinder 1.6L?

    Yes. DENSO Auto Parts 3443 fits the 1999-2000 Honda Civic 4-cylinder 1.6L, and that engine takes four plugs.

    What are the thread size and reach of this DENSO iridium plug?

    The thread diameter is 14.0 mm, the reach is 19.0 mm and the hex size is 16 mm. The seat is flat, and the plug comes pre-gapped at 1.1 mm.

    Does this DENSO spark plug have an iridium tip?

    Yes. The center electrode tip is iridium on a copper core. The ground electrode has a platinum chip tip on a nickel core.

    How long does the iridium last on this DENSO plug?

    The patented alloy is over 90% iridium with small amounts of rhodium added to reduce oxidation, and it is made for durability of over 110,000 miles.

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