{"product_id":"89790642t-mercury-115hp-dfi-pcm-genuine-used-part","title":"89790642T Mercury 115HP DFI PCM | 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 Mercury 115HP DFI \/ OptiMax PCM - Part Number: 89790642T\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n A genuine Mercury propulsion control module for selected 115HP DFI \/ OptiMax 1.5L three-cylinder outboards. This PCM manages direct fuel injection, ignition timing, air\/fuel control, diagnostics and protection strategy on compatible Mercury and Mariner 115HP DFI engines.\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 PCM \/ propulsion control module\n\u003c\/p\u003e\n\u003cp\u003e\n • Correct Mercury part number 89790642T\n\u003c\/p\u003e\n\u003cp\u003e\n • Used on 115HP OptiMax \/ DFI 1.5L three-cylinder outboards\n\u003c\/p\u003e\n\u003cp\u003e\n • Related to Mercury PCM family reference 88555747S\n\u003c\/p\u003e\n\u003cp\u003e\n • Requires exact serial-number, calibration and engine-family confirmation before installation\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 Chain:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • 89790642T current PCM reference for listed 115HP DFI applications\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 • 89790642T\n\u003c\/p\u003e\n\u003cp\u003e\n • 88555747S\n\u003c\/p\u003e\n\u003cp\u003e\n • Related PCM family reference: 88555734S\n\u003c\/p\u003e\n\u003cp\u003e\n • Related PCM family reference: 88555726S\n\u003c\/p\u003e\n\u003cp\u003e\n • Related PCM family reference: 88555703S\n\u003c\/p\u003e\n\u003cp\u003e\n • Related 75HP DFI PCM family reference: 89790640T\n\u003c\/p\u003e\n\u003cp\u003e\n • Related 90HP DFI PCM family reference: 89790641T\n\u003c\/p\u003e\n\u003cp\u003e\n • Related electrical plate reference: 880190T03\n\u003c\/p\u003e\n\u003cp\u003e\n • Related braided cable reference: 858414A1\n\u003c\/p\u003e\n\u003cp\u003e\n • Related trim harness reference: 819514T18\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 • No aftermarket equivalent\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:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury \/ Mariner 115HP DFI \/ OptiMax 1.5L three-cylinder outboard electrical systems\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Typically suits:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine models:\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 115 DFI \/ OptiMax 1.5L 3-cylinder applications up to serial 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 115 DFI 1.5L 3-cylinder - serial 0T801000 to 1B226999 where PCM 89790642T \/ 88555747S is specified\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 115 DFI 1.5L 3-cylinder - serial 1B227000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mariner 115 DFI 1.5L 3-cylinder - serial 1B227000 to 1B417701\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 115ELPTO \/ 115 OptiMax electrical plate applications using 89790642T PCM\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury \/ Mariner 75HP, 90HP and 115HP 1.5L three-cylinder DFI PCM family applications where the exact serial-numbered PCM position specifies 89790642T\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • HP Range: primarily 115HP for 89790642T calibration\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine Type: Mercury \/ Mariner 1.5L three-cylinder DFI \/ OptiMax outboard\n\u003c\/p\u003e\n\u003cp\u003e\n • Year Range: approximately 2004 - 2006 for the core 115HP DFI serial family, with exact fitment by serial number\n\u003c\/p\u003e\n\u003cp\u003e\n • Serial Range: commonly up to 1B417701 for 115HP OptiMax \/ DFI applications\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 PCM controls the OptiMax \/ DFI engine-management system by processing sensor inputs and commanding direct-injection fuel delivery, ignition timing, air compressor strategy, diagnostics and engine-protection functions.\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-start with confirmed compressor pressure, fuel pressure and PCM power supply\n\u003c\/p\u003e\n\u003cp\u003e\n • No injector or direct-injector command\n\u003c\/p\u003e\n\u003cp\u003e\n • No spark command after crank-position and ignition checks\n\u003c\/p\u003e\n\u003cp\u003e\n • No communication with diagnostic equipment\n\u003c\/p\u003e\n\u003cp\u003e\n • Limp mode, warning horn or protection fault after sensor testing\n\u003c\/p\u003e\n\u003cp\u003e\n • Intermittent shutdown or loss of throttle response\n\u003c\/p\u003e\n\u003cp\u003e\n • Persistent PCM-related fault codes after wiring and component checks\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 used part\n\u003c\/p\u003e\n\u003cp\u003e\n • Removed from running engine where applicable\n\u003c\/p\u003e\n\u003cp\u003e\n • In good working condition unless otherwise stated\n\u003c\/p\u003e\n","brand":"Sawley's Auto and Marine","offers":[{"title":"Default Title","offer_id":53388165775652,"sku":"464425F","price":650.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_8803c732-9f74-4ff4-8c25-1c9f5933b13e.jpg?v=1777212760","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/89790642t-mercury-115hp-dfi-pcm-genuine-used-part","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}