ELECTRICAL SECTION RED PART NUMBERS INDICATE NEW PARTS 1-111 1 2 3 4 5 6 7 8 9 10 11 CONTENTS ELECTRICAL FRAME FRONT END CONTROL WHEEL ENGINE DRIVE TRAIN FUEL EXHAUST GENERAL REFERENCE Spark Plugs Champion NGK Model & Year Rpls. HD Reference Reference 4 Pack Part # 10 Pack Part # Milwaukee-Eight® 2017/Later 31600012 RG6HCC CR9EB 18063 ------- Street 500/700 2015/Later 31600012 RG6HCC CR9EB 18063 ------- Twin Cam Models 1999/2017 32362-04 6R12 DCPR7E ------- 18064 Shovelhead models 1975/1984 32368-04 5R6A BPR5ES-11 18065 ------- Evolution Big Twin models 1984/1999 32368-04 5R6A BPR5ES-11 18065 ------- Panhead Shovelhead models 1948/1974 32301-60 3-4 R5670-5 18066 ------- XL 1971/1978 32338-04 4R5 B6L ------- 18067 KH/XL 1954/1971 32307-58 5 B6L ------- 18067 Sportster models 1986/2021 32362-04 6R12 DCPR7E ------- 18064 NGK Model & Year Rpls. HD Reference Part # Milwaukee-Eight® 2017/Later & 31600085 RG6HCC 18062 XG500/750/750A 2015/Later Twin Cam models 1999/2017 & 31600106 6R12 18061 Sportster 1986/2022 Evolution Big Twin Models 1984/1999 & 32326-91 5R6A 18060 Shovelhead 1975/1984 NGK IRIDIUM IX SPARK PLUGS NGK NICKEL SPARK PLUGS Tip Detail • The ultimate in spark plug technology and performance from the industry leader. • The Iridium electrode is 25% smaller than a platinum electrode, and it’s just 1/4 the size of a conventional nickel electrode. • Ultra, small diameter center electrode reduces voltage requirement and extends ignition system life. • Metal shell plating has enhanced anti-corrosion qualities. • Sold in Pack of 4. • These plugs feature a standard nickel core tip. • Increased heat dissipation for more reliable starts, reduced risk of overheating. • Cold-rolled threads prevent cross-threading and damage to cylinder heads. • Trivalent plating eliminates need for anti-seize. • High-grade alumina silicate ceramic. NGK is OEM supplier to most major manufactuers. • Spark plugs come pre-gapped.
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