{"product_id":"878492t14-mercury-junction-box-j-box-genuine-used-part","title":"878492T14 Mercury Junction Box J-Box | 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 SmartCraft Junction Box - Part Number: 878492T14\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n A genuine Mercury SmartCraft junction box used as a CAN bus connection point in Mercury, MerCruiser and Mariner SmartCraft rigging systems. This J-box connects SmartCraft gauges, VesselView displays, engine harnesses, terminators and accessory harnesses.\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 SmartCraft junction box\n\u003c\/p\u003e\n\u003cp\u003e\n • Correct Mercury part number 878492T14\n\u003c\/p\u003e\n\u003cp\u003e\n • 4-way SmartCraft J-box reference\n\u003c\/p\u003e\n\u003cp\u003e\n • Superseded to 8M0165557 service kit\n\u003c\/p\u003e\n\u003cp\u003e\n • Used in SmartCraft CAN bus gauge and accessory networks\n\u003c\/p\u003e\n\u003cp\u003e\n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 • 8M0165557 → Supersedes 878492T14\n\u003c\/p\u003e\n\u003cp\u003e\n • 8M0165557 → Supersedes 878492K14\n\u003c\/p\u003e\n\u003cp\u003e\n • 8M0165557 → Supersedes 878492K16\n\u003c\/p\u003e\n\u003cp\u003e\n • 878492T14 earlier SmartCraft junction box reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 878492K14 earlier SmartCraft junction box kit reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 878492A14 earlier SmartCraft junction box kit reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 878492B14 related SmartCraft junction box reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 878492T16 related SmartCraft junction box reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 878492K16 related SmartCraft junction box 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 • 878492T14\n\u003c\/p\u003e\n\u003cp\u003e\n • 878492-T14\n\u003c\/p\u003e\n\u003cp\u003e\n • 878492K14\n\u003c\/p\u003e\n\u003cp\u003e\n • 878492A14\n\u003c\/p\u003e\n\u003cp\u003e\n • 878492B14\n\u003c\/p\u003e\n\u003cp\u003e\n • 878492T16\n\u003c\/p\u003e\n\u003cp\u003e\n • 878492K16\n\u003c\/p\u003e\n\u003cp\u003e\n • 8M0165557\n\u003c\/p\u003e\n\u003cp\u003e\n • 98-8M0165557\n\u003c\/p\u003e\n\u003cp\u003e\n • 859318B2 weather cap assembly\n\u003c\/p\u003e\n\u003cp\u003e\n • 8M0210752 weather cap assembly\n\u003c\/p\u003e\n\u003cp\u003e\n • 859318T1 terminator \/ harness reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 8M0210753 terminator reference\n\u003c\/p\u003e\n\u003cp\u003e\n • 84-879982T20 SmartCraft harness\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 • FASWORX: SmartCraft 4-port junction box\n\u003c\/p\u003e\n\u003cp\u003e\n • OMGparts: SmartCraft 4-port junction box\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 \/ MerCruiser \/ Mariner SmartCraft CAN bus rigging 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 200XS DFI 2.5L - serial 1E000797 to 1E002110\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 Sport XS - serial 1E002584 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 225 XS - serial 1E002584 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 Sport XS - serial 1E002342 to 1E051823\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250 Sport XS - serial 1E051824 to 1E052994\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250XS 3.0L DFI - serial 1E000797 to 1E002341\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250XS 3.0L DFI - serial 1E002342 to 1E051113\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 250XS 3.0L DFI - serial 1E053158 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 3.0L DSI - serial 1E052967 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 300XS 3.2L DFI - serial 1E001867 to 1E052057\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 300XS 3.2L DFI - serial 1E052058 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury JP 3.0L DFI - serial 1E003046 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury SmartCraft outboard installations using 10-pin CAN harnesses\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser SmartCraft sterndrive and inboard installations using SmartCraft J-box networking\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • HP Range: SmartCraft network component used across SmartCraft-equipped engines\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine Type: Mercury \/ MerCruiser \/ Mariner SmartCraft CAN bus system\n\u003c\/p\u003e\n\u003cp\u003e\n • Year Range: Serial-number controlled by SmartCraft rigging diagram\n\u003c\/p\u003e\n\u003cp\u003e\n • Serial Range: Confirmed DFI performance serial ranges listed above; final fitment must be checked by engine serial number and SmartCraft harness 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 junction box provides a CAN bus connection point so SmartCraft gauges, VesselView displays, harnesses and accessories can communicate with the engine network.\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 • SmartCraft gauges not powering up or not communicating\n\u003c\/p\u003e\n\u003cp\u003e\n • VesselView display losing engine data\n\u003c\/p\u003e\n\u003cp\u003e\n • Intermittent CAN bus connection faults\n\u003c\/p\u003e\n\u003cp\u003e\n • Corroded or damaged J-box pins\n\u003c\/p\u003e\n\u003cp\u003e\n • Missing weather caps causing water ingress\n\u003c\/p\u003e\n\u003cp\u003e\n • Network fault isolated to the junction box\n\u003c\/p\u003e\n\u003cp\u003e\n • Accessories work when connected through a known-good J-box\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":53392322101540,"sku":"S174911","price":62.5,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_5e544684-11e1-4da2-9a80-35a660d5671d.jpg?v=1777261885","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/878492t14-mercury-junction-box-j-box-genuine-used-part","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}