{"product_id":"detroit-diesel-a4721506233-fuel-injector-wiring-harness","title":"Detroit Diesel A4721506233 Front Fuel Injector Wiring Harness – DD15","description":"\u003cp\u003eThe Detroit Diesel A4721506233 is a genuine OEM front fuel injector wiring harness for the Detroit DD15 14.8L engine. This cylinder-head-mounted harness provides the critical electrical connections between the ECM and the front bank of fuel injectors, ensuring precise fuel delivery and accurate injector timing. It features fully insulated connectors and heat-resistant construction designed to withstand the extreme temperatures of the DD15 engine compartment.\u003c\/p\u003e\n\u003ch2\u003eSigns You Need a New Injector Wiring Harness\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRough idle, misfires, or intermittent cylinder cutout\u003c\/li\u003e\n\u003cli\u003eFault codes related to injector circuit open, short, or low voltage on front cylinders\u003c\/li\u003e\n\u003cli\u003eIncreased fuel consumption without other mechanical cause\u003c\/li\u003e\n\u003cli\u003eVisible cracking, melting, or heat damage to harness insulation near the cylinder head\u003c\/li\u003e\n\u003cli\u003eCorroded or loose injector harness connectors causing intermittent electrical faults\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eDetroit Diesel (Genuine OEM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eA4721506233\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eFuel Injector Wiring Harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePosition\u003c\/th\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMounting Location\u003c\/th\u003e\n\u003ctd\u003eCylinder Head \/ Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEngine Compatibility\u003c\/th\u003e\n\u003ctd\u003eDetroit DD15 14.8L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eConnector Type\u003c\/th\u003e\n\u003ctd\u003eFactory-style, fully insulated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCross References\u003c\/h2\u003e\n\u003cp\u003eThis harness replaces or supersedes the following previous Detroit Diesel part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetroit Diesel:\u003c\/strong\u003e A4721502933, A4721501833\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompanion part:\u003c\/strong\u003e The rear fuel injector wiring harness is sold separately under Detroit Diesel part number \u003ca href=\"\/products\/detroit-diesel-a4721506333-rear-fuel-injector-wiring-harness-dd15\"\u003eA4721506333\u003c\/a\u003e (replaces A4721501933, A4721503033). Both front and rear harnesses should be inspected and replaced as needed during injector service.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThis front injector wiring harness fits Detroit DD15 engines found in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFreightliner Cascadia, Columbia, Century, Coronado (2008–2018)\u003c\/li\u003e\n\u003cli\u003eWestern Star 4700, 4800, 4900, 5700 (2009–2018)\u003c\/li\u003e\n\u003cli\u003eSterling Truck A-Line, L-Line (2008–2010)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eAlways verify your engine serial number and harness routing before ordering. The DD15 uses separate front (A4721506233) and rear (\u003ca href=\"\/products\/detroit-diesel-a4721506333-rear-fuel-injector-wiring-harness-dd15\"\u003eA4721506333\u003c\/a\u003e) injector harnesses. Confirm which harness position is needed for your repair.\u003c\/em\u003e\u003c\/p\u003e","brand":"Detroit Diesel","offers":[{"title":"Default Title","offer_id":50652277440797,"sku":null,"price":115.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/0730\/1991\/files\/DetroitDieselA4721506233FuelInjectorHarnessforDD15.jpg?v=1764025283","url":"https:\/\/www.allprodiesel.net\/products\/detroit-diesel-a4721506233-fuel-injector-wiring-harness","provider":"All Pro Truck Parts","version":"1.0","type":"link"}