{"product_id":"99021a16-mercury-trigger-genuine-used-part","title":"99021A16 Mercury Trigger | 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 Trigger Assembly - Part Number: 99021A16\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 45 Jet and 50HP through 90HP two-stroke engines.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Part number 99021A16 belongs to the three-cylinder 99021 trigger family and is mounted beneath the flywheel to generate ignition-timing signals while moving with the mechanical spark-advance linkage.\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 99021A16\n\u003c\/p\u003e\n\u003cp\u003e\n • Three-cylinder ignition configuration\n\u003c\/p\u003e\n\u003cp\u003e\n • Used on selected 45 Jet and 50HP through 90HP engines\n\u003c\/p\u003e\n\u003cp\u003e\n • Mechanical spark-advance assembly\n\u003c\/p\u003e\n\u003cp\u003e\n • CDI and Sierra 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 • 99021A3 - Earlier trigger reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 99021A5 - Earlier trigger reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 99021A7 - Related trigger reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 99021A8 - Related trigger reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 99021A13 - Later trigger reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 99021A15 - Related trigger reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 99021A16 - Later service assembly\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 • 99021A16\n\u003c\/p\u003e\n\u003cp\u003e\n • 99021A3\n\u003c\/p\u003e\n\u003cp\u003e\n • 99021A5\n\u003c\/p\u003e\n\u003cp\u003e\n • 99021A7\n\u003c\/p\u003e\n\u003cp\u003e\n • 99021A8\n\u003c\/p\u003e\n\u003cp\u003e\n • 99021A13\n\u003c\/p\u003e\n\u003cp\u003e\n • 99021A15\n\u003c\/p\u003e\n\u003cp\u003e\n • Trigger Type: Three-Cylinder\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: 134-9021-3\n\u003c\/p\u003e\n\u003cp\u003e\n • Sierra: 18-99393\n\u003c\/p\u003e\n\u003cp\u003e\n • Aftermarket trigger replacing the listed 99021A-series references\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 45 Jet\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 50HP three-cylinder\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 55HP three-cylinder\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 60HP three-cylinder\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 65 Jet\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 70HP\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 75HP\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 80HP\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 90HP\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 Representative application period:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Approximately 1987-1999, horsepower and serial-number dependent\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Verified catalogue examples include:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 50HP three-cylinder 0D000750 through 0G290584\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 55HP three-cylinder 0D000750 through later 0G-series ranges\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 60HP three-cylinder 0G290585 through 0G589999\n\u003c\/p\u003e\n\u003cp\u003e\n • International three-cylinder 50HP, 55HP and 60HP applications using 99021A16\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.\n\u003c\/p\u003e\n\u003cp\u003e\n • Similar 40HP, 50HP and 60HP Mercury engines may use a different trigger according to cylinder count and ignition system.\n\u003c\/p\u003e\n\u003cp\u003e\n • Compare wire colours, connector and advance-arm shape.\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 three crankshaft-position pulses for the ignition switchbox.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Its rotational movement advances ignition timing as the throttle is opened.\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 • Spark disappears when warm\n\u003c\/p\u003e\n\u003cp\u003e\n • Difficult starting\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine backfires\n\u003c\/p\u003e\n\u003cp\u003e\n • Misfire during acceleration\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine will not reach full rpm\n\u003c\/p\u003e\n\u003cp\u003e\n • Trigger wires are cracked or pinched\n\u003c\/p\u003e\n\u003cp\u003e\n • Timing does not advance correctly\n\u003c\/p\u003e\n\u003cp\u003e\n • Trigger resistance or peak output is outside specification\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 99021A16 or a listed cross-reference\n\u003c\/p\u003e\n\u003cp\u003e\n • Verify the three-cylinder configuration\n\u003c\/p\u003e\n\u003cp\u003e\n • Test resistance and peak output\n\u003c\/p\u003e\n\u003cp\u003e\n • Inspect the switchbox, stator and coils\n\u003c\/p\u003e\n\u003cp\u003e\n • Check the flywheel key and magnets\n\u003c\/p\u003e\n\u003cp\u003e\n • Confirm free trigger movement\n\u003c\/p\u003e\n\u003cp\u003e\n • Route wiring clear of the flywheel\n\u003c\/p\u003e\n\u003cp\u003e\n • Set ignition timing 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 • Wire ageing, marks 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 • Included linkage and hardware are limited to those shown or described\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":53392302637348,"sku":"7644112","price":40.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_bf6076ae-03d5-4b70-b0be-bf994e59fc63.jpg?v=1777261371","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/99021a16-mercury-trigger-genuine-used-part","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}