WSRD Spark Plug Set | 2017-2026 Defender HD10

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We saw that these were a popular option that guys were looking for on the forums. So, we listened! This spark plug is a factory spark plug heat range and replacement. The Brisk Spa rk Plug Replaces the following: OEM BRP Part Number 420297620 NGK Alternative Part Number LMAR8C-9 WSRD pre-gaps these spark plugs to .016". This gap specification is a must when increasing boost! Selecting a quantity of (1) will purchase a set of (2) spark plugs. Show more