{"product_id":"855746a1-mercury-trigger-assy-genuine-used-part","title":"855746A1 Mercury Trigger Assy | Genuine Used Part","description":"\u003cp\u003e\n 🔧 Product Description\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Genuine Used Mercury Mariner Three-Cylinder CDM Short-Arm Trigger - Part Number: 855746A1\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n A genuine pre-owned Mercury and Mariner trigger assembly for selected three-cylinder CDM-ignition outboards and jet-drive engines.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n The trigger is mounted beneath the flywheel and provides crankshaft-position signals to the engine's CDM ignition modules. This version uses the short spark-advance arm configuration.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n ⚙️ Key Features\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Genuine Mercury or Mariner used trigger\n\u003c\/p\u003e\n\u003cp\u003e\n • Correct OEM reference 855746A1\n\u003c\/p\u003e\n\u003cp\u003e\n • Three-cylinder CDM ignition configuration\n\u003c\/p\u003e\n\u003cp\u003e\n • Short-arm trigger design\n\u003c\/p\u003e\n\u003cp\u003e\n • Suitable for selected 30HP through 90HP families\n\u003c\/p\u003e\n\u003cp\u003e\n • CDI, Sierra and aftermarket replacements available\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 🔄 Supersession \u0026amp; Cross Reference\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n OEM Supersession \/ Related Chain:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • 834520T - Related OEM trigger reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 854512T - Later service trigger\n\u003c\/p\u003e\n\u003cp\u003e\n • 855746A1 - OEM assembly reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 855746A12 - Related service-kit reference\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n OEM \/ Related Numbers:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • 855746A1\n\u003c\/p\u003e\n\u003cp\u003e\n • 855746A12\n\u003c\/p\u003e\n\u003cp\u003e\n • 854512T\n\u003c\/p\u003e\n\u003cp\u003e\n • 834520T\n\u003c\/p\u003e\n\u003cp\u003e\n • Trigger Type: Three-Cylinder CDM Short Arm\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Aftermarket \/ Verified Equivalents:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • CDI Electronics: 134-4512-3\n\u003c\/p\u003e\n\u003cp\u003e\n • Sierra: 18-99396\n\u003c\/p\u003e\n\u003cp\u003e\n • Aftermarket replacement for 854512T\n\u003c\/p\u003e\n\u003cp\u003e\n • Aftermarket replacement for 855746A1 \/ 855746A12\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 🚤 Compatibility\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Commonly used on selected:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 30HP three-cylinder engines\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 40HP three-cylinder engines\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 50HP\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 55HP\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 60HP\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 75HP\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 90HP\n\u003c\/p\u003e\n\u003cp\u003e\n • 30 Jet, 40 Jet, 45 Jet and 65 Jet applications\n\u003c\/p\u003e\n\u003cp\u003e\n • Compatible Mariner three-cylinder engines\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Important fitment note:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Confirm the engine has three cylinders and CDM ignition.\n\u003c\/p\u003e\n\u003cp\u003e\n • Do not confuse this short-arm three-cylinder trigger with the four-cylinder 855746A2 assembly.\n\u003c\/p\u003e\n\u003cp\u003e\n • Compare wire colours, arm length and connector layout.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 🔌 Function\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n The trigger produces position signals used by the CDM ignition modules to determine when each spark plug should fire.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Common signs of failure:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • No spark on one or more cylinders\n\u003c\/p\u003e\n\u003cp\u003e\n • Intermittent spark\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine stalls when warm\n\u003c\/p\u003e\n\u003cp\u003e\n • Misfire at a repeatable rpm\n\u003c\/p\u003e\n\u003cp\u003e\n • Difficult starting\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine will not accelerate correctly\n\u003c\/p\u003e\n\u003cp\u003e\n • Trigger wiring is damaged\n\u003c\/p\u003e\n\u003cp\u003e\n • Timing signal is absent or unstable\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Recommended checks before installation:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Confirm the cylinder count and arm length\n\u003c\/p\u003e\n\u003cp\u003e\n • Test trigger resistance and peak voltage\n\u003c\/p\u003e\n\u003cp\u003e\n • Inspect CDM modules, stator and wiring\n\u003c\/p\u003e\n\u003cp\u003e\n • Check the flywheel magnets\n\u003c\/p\u003e\n\u003cp\u003e\n • Confirm free movement through the advance range\n\u003c\/p\u003e\n\u003cp\u003e\n • Set timing and synchronisation after installation\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 📦 Condition\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Genuine Mercury or Mariner used part\n\u003c\/p\u003e\n\u003cp\u003e\n • Pre-owned electrical component\n\u003c\/p\u003e\n\u003cp\u003e\n • Cosmetic marks, wire ageing and oxidation may be present\n\u003c\/p\u003e\n\u003cp\u003e\n • Electrical testing before installation is strongly recommended\n\u003c\/p\u003e\n\u003cp\u003e\n • Supplied in protective or equivalent packaging\n\u003c\/p\u003e\n","brand":"Sawley's Auto and Marine","offers":[{"title":"Default Title","offer_id":53392252993828,"sku":"L728975","price":52.5,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_e0a6a693-6f5f-41bf-8727-b49eee5b9af8.jpg?v=1777433212","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/855746a1-mercury-trigger-assy-genuine-used-part","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}