Spark Plug for 2007-2012 Acura RDX - NGK 1402

$17.99
NGK Spark Plug 1402
NGK Spark Plug 1402 - view 2
NGK Spark Plug 1402
NGK Spark Plug 1402 - view 2

Vehicles this part fits
    Part number: 1402
    UPC: 087295114025
    Condition: New
    Weight: 0.10 LBS
    Item Package Quantity: 1
    $17.99
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    NGK Spark Plug P/N:1402
    NGK Spark Plug P/N:1402
    $17.99
    $17.99

    NGK 1402 spark plug for the 2007-2012 Acura RDX 4-cylinder 2.3L ignites the air-fuel mixture in each cylinder. Among NGK spark plugs, it is an iridium design engineered specifically for OE applications.

    • Laser Iridium High Ignitability design with a square platinum electrode (SPE) on the ground electrode
    • Iridium alloy center electrode with a density 6x that of platinum and a very high melting point
    • Platinum on the ground electrode for even wear in distributorless ignition systems
    • Solid core of 98% pure copper for heat dissipation and conductivity
    • Trivalent metal plating resists corrosion and seizing for easier installation and removal

    Quick facts

    • Part: NGK 1402 spark plug
    • Fits: 2007-2012 Acura RDX 4-cylinder 2.3L
    • Condition: New

    A misfire, hard starting or a rough idle can mean a spark plug is worn. These signs alone do not prove the plug is the problem, since a weak ignition coil can also cause a misfire.

    Fits

    This is a direct-fit replacement for the 2007-2012 Acura RDX 4-cylinder 2.3L, which takes four, so plan on four plugs.

    Specifications

    Fit and size

    • Quantity per vehicle: 4
    • Thread size: M12 - 1.25

    Build and materials

    • NGK part number: SILKR8A-S
    • Center electrode: iridium alloy
    • Ground electrode: square platinum electrode (SPE)
    • Core: 98% pure copper
    • Ceramic: high-grade pure alumina
    • Plating: trivalent metal
    • Condition: New

    Interchange: 12290-RWC-A01 · SILKR8A-S
    AI5701 · XP5701

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

    12290RWCA01, 12290-RWC-A01, AI5701, XP5701, 1402, SILKR8A-S

    Frequently Asked Questions

    Is this the correct Acura RDX spark plug for 2007-2012 models with the 4-cylinder 2.3L?

    Yes. The NGK 1402 is listed for the 2007-2012 Acura RDX 4-cylinder 2.3L, which takes four plugs.

    What are the electrodes made of in these NGK iridium spark plugs?

    On the NGK 1402, the center electrode is an iridium alloy and the ground electrode is a square platinum electrode (SPE). The core is 98% pure copper.

    What thread size and plating does the NGK 1402 have?

    The NGK 1402 has an M12 - 1.25 thread. Its trivalent metal plating resists corrosion and seizing for easier installation and removal.

    Which symptoms can point to a worn iridium plug like this one?

    A misfire, hard starting or a rough idle can mean a worn plug. A shop can test the plugs and ignition coils to find the cause.

    Is the NGK 1402 the same plug as SILKR8A-S?

    Yes. SILKR8A-S is NGK's other number for this plug. The Interchange line lists the other cross-reference numbers.

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