BOLD MAGENTA part numbers are new for 2026 ELECTRICAL & GAUGES PARTS-UNLIMITED.COM STREET | 2026 885 DISCLAIMER: *EMIS (EMISSIONS CATEGORIZATION CODE). SEE PAGES 4-6 FOR CATEGORY CODES, IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. PRODUCTS NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES IF NOT CATEGORIZED AS “1” OR “4”. IRIDIUM IX SPARK PLUGS •The ultimate in the evolution of 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 anticorrosion qualities IRIDIUM PLATINUM PLUGS PART # NGK PLUG # THREAD REACH 2103-0033 IFR5L-11 14 mm 3/4” 2103-0012 IFR9H-11 14 mm 3/4” 2103-0013 IMR8C-9H 10 mm 3/4” PART # NGK PLUG # THREAD REACH 2103-0037 IMR9C-9HES 10 mm 3/4” 2103-0193 IMR9E-9HES 19 mm 3/4” 2103-0209 ILZKAR7B11 19 mm 3/4” IRIDIUM PART # NGK PLUG # THREAD REACH 2103-0288 BCPR7EIX 14 mm 3/4” BKR5EIX-111 BKR5EIX-11 14 mm 3/4” 2103-0036 BKR6EIX-11 14 mm 3/4” BPR5EIX-11 BPR5EIX-11 14 mm 3/4” 2103-0289 BPR6EIX 14 mm 3/4” BPR6EIX-11 BPR6EIX-11 14 mm 3/4” BPR6HIX BPR6HIX 14 mm 1/2” BPR7EIX BPR7EIX 14 mm 3/4” BPR7HIX BPR7HIX 14 mm 1/2” BR6HIX BR6HIX 14 mm 1/2” BR7EIX BR7EIX 14 mm 3/4” BR7HIX BR7HIX 14 mm 1/2” BR8EIX BR8EIX 14 mm 3/4” BR8EIXSOLID BR8EIXSOLID 14 mm 3/4” BR8HIX BR8HIX 14 mm 1/2” BR9EIX BR9EIX 14 mm 3/4” BR9EIXSOLID BR9EIXSOLID 14 mm 3/4” BR9HIX BR9HIX 14 mm 1/2” PART # NGK PLUG # THREAD REACH BR10EIX BR10EIX 14 mm 3/4” 2103-0294 CPR7EAIX9 10 mm 3/4” 2103-0462 CPR8EAI-X9 10 mm 3/4” 2103-0035 CR6EIA-9 10 mm 3/4” 2103-0291 CR6HIX 10 mm 1/2” 2103-0062 CR7EIX 10 mm 3/4” 2103-0292 CR7HIX 10 mm 3/4” CR8EHIX-9 CR8EHIX-9 10 mm 3/4” 2103-0286 CR8EIA9 10 mm 5/8” 2103-0078 CR8EIB-9 19 mm 3/4” CR8EIX CR8EIX 10 mm 3/4” 2103-0293 CR8HIX 10 mm 1/2” CR9EHIX-9 CR9EHIX-9 10 mm 3/4” CR9EIA-9 CR9EIA-9 10 mm 3/4” CR9EIX CR9E 10 mm 3/4” 2103-0176 CR10EIX 10 mm 3/4” 2103-0188 DCPR6EIX 12 mm 3/4” 2103-0525 DCPR7EIXSOLID 12 mm 3/4” PART # NGK PLUG # THREAD REACH 2103-0065 DCPR9EIX 12 mm 3/4” DPR7EIX-9 DPR7EIX-9 12 mm 3/4” DPR8EIX-9 DPR8EIX-9 12 mm 3/4” DPR9EIX-9 DPR9EIX-9 12 mm 3/4” 2103-0007 DR7EIX 12 mm 3/4” DR8EIX DR8EIX 12 mm 3/4” DR9EIX DR9EIX 12 mm 3/4” 2103-0431 ER8EHIX 8 mm 3/4” 2103-0362 ER9EHIX 8 mm 3/4” FR9BI-11 FR9BI-11 14 mm 3/4” 2103-0530 ILTR5E11 14 mm 1” 2103-0570 IMR8E-9HES 10 mm 3/4” IMR9C-9H IMR9C-9H 10 mm 3/4” 2103-0040 IZFR6F-11 14 mm 3/4” 2103-0370 LMAR8AI-8 10 mm 26.5 mm 2103-0461 SILMAR8A9S 10 mm 26.5 mm 2103-0343 SILMAR9B9 10 mm 26.5 mm 1 Fits Honda VTX1800 02-03. IRIDIUM RACING PLUGS PART # NGK PLUG # THREAD REACH R5670-5 R5670-5 14 mm 3/8” R5671A-9 R5671A-9 14 mm 3/4” PART # NGK PLUG # THREAD REACH R6254E-105 R6254E-105 14 mm 3/4” R6254E-9 R6254E-9 14 mm 3/4” PART # NGK PLUG # THREAD REACH 2103-0014 R7376-8 14 mm 3/4” 2103-0015 R7376-10 14 mm 3/4” SPARK PLUGS •Superior construction for serious power •NGK makes plugs for almost every application and riding style •Versatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot •Feature high alumina ceramics for improved heat dissipation and electrical insulation, deep-seated copper core for a wider heat range and a nickel alloy tip for longer life PART # NGK PLUG # THREAD REACH 2103-0341 CPR6EA-9S 10 mm 3/4” 2103-0225 LMAR8A-9 10 mm 26.5 mm 2103-0340 LMAR8A-9S 10 mm 26.5 mm PART # NGK PLUG # THREAD REACH 2103-0328 LMAR8D-J 10 mm 26.5 mm 2103-0300 LMAR8F-9 10 mm 26.5 mm SPARK PLUGS continued on next page. BR9EIX BR8ES 2103-0018
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