{"product_id":"newhow-2-pack-ignition-coil-339-7370a13-12v-for-mercury-mariner","title":"NEWHOW 2-Pack Ignition Coil 339-7370A13 12V for Mercury Mariner","description":"\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2-Pack 12V Canister Ignition Coils — Replaces 339-7370A13 \/ Sierra 18-5186 Set of two direct aftermarket oil-filled ignition coils for Mercury\/Force\/Chrysler 2-stroke outboards. Replaces Mercury 339-7370A13, 339-7370B13, 339-832757A4, 339-832757B4, 338-4774A1, 338-4995A1\/A2, 339-7370A2\/A6\/A8\/A16\/A17\/A19\/A23, 339-832757A3, 339-7370A23, F718475​ and crosses Sierra 18-5186 \/ 18-5186D, Mallory 9-23200, Recmar REC300-08309, 8M0219430, 8M0230859. Specs: 12V, ~1.5-2.0Ω primary, ~8-10kΩ secondary, oil-filled steel canister, 2 blade terminals + 1 high-tension tower. Match your old coil stamp before ordering. Not a CDM module (827509A10), not a stator, not a trigger plate.\u003c\/li\u003e\n\u003cli\u003eFits Mercury\/Mariner 40\/70\/90\/115\/150\/200HP 2-Stroke \u0026amp; Force 40-90HP Engineered for the most common Mercury\/Mariner 2-stroke configurations: 40HP 2-cyl, 70\/90HP 3-cyl, 115HP 4-cyl, 150\/200HP V6, plus Force\/Chrysler 40\/50\/70\/90HP (S\/N E000001-E138599)​ and Sport Jet 120\/150HP.\u003c\/li\u003e\n\u003cli\u003eFixes Weak Spark, Hard Cold Start \u0026amp; Mid-RPM Misfire Resolves canister-coil failures: orange spark instead of blue-white, 10+ pulls to cold-start, misfire above 3000rpm, or engine dies when choke is released. Internal oil dries or windings open over time. New coil restores 25-30kV output. Test old coil: primary 1.5-2Ω (between blades), secondary 8-10kΩ (blade to tower); open or short = dead coil.\u003c\/li\u003e\n\u003cli\u003eWire-In to Harness in 15 Minutes Disconnect battery, locate coil (starboard side near flywheel), unplug 2 blade wires, remove high-tension lead from tower, unbolt coil bracket, mount new coil, torque to 35 in-lb, reconnect blades, route plug wire to correct cylinder. Critical:​ use dielectric grease on tower; verify blade polarity (reverse = weak spark). Reuse or replace plug wires (not included).\u003c\/li\u003e\n\u003cli\u003e339-7370A13 Canister Coil ≠ 827509A10 CDM Module — Confirm 2-Blade + Tower This is the traditional oil-filled canister with 2 blade terminals + 1 high-tension tower​ for pre-CDM Mercury\/Force 2-stroke (1976-2006). The 827509A10 4-pin CDM​ has NO tower and 4 pins — completely different ignition system. Photo old coil: 339-7370A13 or Sierra 18-5186 stamp + cylindrical can + 2 blades + 1 tower​ = exact fit. 4-pin epoxy block = wrong generation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFree shipping on orders $50+. 30-day hassle-free returns.\u003c\/p\u003e","brand":"Belmont Warehouse","offers":[{"title":"Default Title","offer_id":43364224991441,"sku":"BW-B0BZ7W8YPF","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/3123\/5793\/files\/61_K_Yr_0hL.jpg?v=1791317707","url":"https:\/\/belmontwarehouse.com\/products\/newhow-2-pack-ignition-coil-339-7370a13-12v-for-mercury-mariner","provider":"Belmont Warehouse","version":"1.0","type":"link"}