NGK
NGK IX Iridium Spark Plug Box of 4 (BPR6EIX)
SKU: ngk6637
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum....
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Overview
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
Features
- RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
- Trivalent metal plating for superior anti-corrosion and anti-seizing properties
- Outstanding acceleration, high fuel efficiency and durability
- Fine iridium tip ensures durable and consistent spark
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Fitment notes (catalog)
BMW 1976-64; DOD/EAG/PLY 1994-71; JAG 1979-71; LND RVR 1999-94; MAZ 1987-70; M-BENZ 1974-63; MITS 1999-90; NIS 1988-70; SUBARU 1980-71; TOYOTA 1974-64; VW/AUDI 1993-68; VOLVO 1993-76, POWERSPORTS - VARIOUS
Summarized compatible vehicles also appear under Description → Fitment.
Detailed rows from our confirmed fitment index can be large (dozens to hundreds per part). Load them only when you need year/trim/engine-level links to Shop by Vehicle.