{"product_id":"crusader-electric-fuel-pump-assembly-47039","title":"Crusader Electric Fuel Pump Assembly | OEM 47039 | 5.7L \/ 7.4L \/ 8.1L MPI","description":"\u003ch2\u003eCrusader Electric Fuel Pump Assembly — OEM 47039\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 47039 (Crusader OEM)  |  \u003cstrong\u003eBrand:\u003c\/strong\u003e Crusader Marine\u003c\/p\u003e\n\u003cp\u003eCrusader \u003cstrong\u003e47039\u003c\/strong\u003e is a genuine OEM electric high-pressure fuel pump assembly for selected fuel-injected Crusader marine engines. Crusader factory parts manuals identify 47039 as the \u003cstrong\u003eElectric Fuel Pump Assembly\u003c\/strong\u003e used in both return-style and early returnless fuel systems on applicable 5.7L, 7.4L, and 8.1L engine installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant — system identification required:\u003c\/strong\u003e 47039 is a Pierburg-style pump used in the \u003cem\u003eexternal\u003c\/em\u003e pump location. It is \u003cstrong\u003enot\u003c\/strong\u003e the internally mounted pump used in later Crusader FCC (Fuel Control Cell) systems. Confirm the engine model, serial number, and fuel-system layout before ordering — the pump mounting location differs between return-type and early returnless configurations.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 47039\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Crusader Marine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Electric High-Pressure Marine Fuel Pump Assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump Style:\u003c\/strong\u003e Pierburg-style electric fuel pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Engine fuel delivery — return-type and early returnless configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApprox. Application Period:\u003c\/strong\u003e 1995–2001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approx. 1.4 kg \/ 3 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cp\u003eFitment must be confirmed by engine model, serial number, and fuel-system configuration. Documented Crusader applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCrusader 5.7L fuel-injected MPI engines (return-type fuel system)\u003c\/li\u003e\n\u003cli\u003eCrusader 7.4L \/ MP7.4L engines (return-type fuel system) — per MP7.4L factory parts manual\u003c\/li\u003e\n\u003cli\u003eCrusader 8.1L engines using the \u003cstrong\u003eearly returnless fuel system through serial number 630206\u003c\/strong\u003e — per MP8.1L factory parts manual\u003c\/li\u003e\n\u003cli\u003eRelated 8.2L applications referenced in the same pump family\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot for use with:\u003c\/strong\u003e Later Crusader MPI engines equipped with FCC (Fuel Control Cell) systems, which use a different internally mounted pump.\u003c\/p\u003e\n\n\u003ch2\u003eFuel System Configuration Guide\u003c\/h2\u003e\n\u003cp\u003eCrusader used 47039 in two distinct mounting locations depending on fuel system type:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReturn-type system:\u003c\/strong\u003e Pump is mounted horizontally behind the engine mount on the engine’s right bank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEarly returnless system:\u003c\/strong\u003e Pump is mounted vertically inside the fuel-cooler assembly on the engine’s left bank\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConfirm which layout your engine uses before removal. The pump number is the same for both configurations, but the mounting orientation and surrounding hardware differ.\u003c\/p\u003e\n\n\u003ch2\u003eWhen to Replace the Fuel Pump\u003c\/h2\u003e\n\u003cp\u003eTest fuel pressure and electrical supply before condemning the pump — similar symptoms can result from a clogged fuel filter, failed relay, or wiring fault. Replace the pump when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHard starting or extended cranking with no fuel pressure fault elsewhere\u003c\/li\u003e\n\u003cli\u003eEngine starts but will not hold fuel pressure at idle or under load\u003c\/li\u003e\n\u003cli\u003eLoss of power that correlates with low fuel pressure readings\u003c\/li\u003e\n\u003cli\u003eIntermittent engine shutdown traced to fuel delivery\u003c\/li\u003e\n\u003cli\u003ePump does not operate when electrically energized and relay \/ fuse are confirmed good\u003c\/li\u003e\n\u003cli\u003eExcessive pump noise during operation\u003c\/li\u003e\n\u003cli\u003eConfirmed low or unstable fuel pressure after filters and electrical supply have been verified\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDepressurize the fuel system fully and disconnect battery power before beginning any fuel system work\u003c\/li\u003e\n\u003cli\u003eFollow Crusader’s fuel-system service procedure for the applicable engine and system type\u003c\/li\u003e\n\u003cli\u003eInspect all fuel fittings, sealing O-rings, mounting hardware, and fuel lines during replacement — Crusader parts documentation identifies separate sealing O-rings and fittings surrounding the 47039 pump installation\u003c\/li\u003e\n\u003cli\u003eAfter installation, cycle the ignition several times to prime the system before cranking\u003c\/li\u003e\n\u003cli\u003eInspect all connections and fittings carefully for fuel leaks before operating the vessel\u003c\/li\u003e\n\u003cli\u003eVerify fuel pressure meets the applicable Crusader service specification under cranking and running conditions before returning the vessel to service\u003c\/li\u003e\n\u003cli\u003eProfessional marine engine service is recommended for fuel system work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCross-Reference Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrusader OEM:\u003c\/strong\u003e 47039 \/ CRU47039 \/ CRU-47039\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Pierburg manufacturer numbers associated with historical 47039 applications vary between pump versions. The Crusader 47039 reference and the physical fuel-system configuration are the primary fitment identifiers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131363471396\"\u003eCrusader Damper Plate 302\/351 | SAE #0 \/ BorgWarner | OEM Part R140001\u003c\/a\u003e — OEM Crusader drivetrain component\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e 47039 is the correct high-pressure pump for Crusader MP7.4L and early MP8.1L engines (through serial 630206) that are showing fuel delivery symptoms and have the external Pierburg-style pump — not an FCC-equipped later engine. At this price point it’s a genuine OEM assembly, which matters on fuel-injected marine engines where aftermarket pump quality can vary significantly and a pump failure underway is a serious situation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon issues:\u003c\/strong\u003e The most frequent ordering mistake is not identifying the fuel system type first. Later Crusader MPI engines with the FCC (Fuel Control Cell) use a completely different internally mounted pump — ordering 47039 for an FCC engine will result in a part that does not fit. Always confirm the engine serial number against the appropriate Crusader parts manual before ordering. The second issue is skipping fuel pressure testing and replacing the pump based on symptoms alone — a failed relay, blown fuse, corroded connector, or clogged pre-filter can produce identical symptoms at a fraction of the cost, so a pressure and electrical check first is always worth the time.\u003c\/p\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":43563780341796,"sku":"47039","price":654.61,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/ad7cfd23-8f19-462a-b1bd-5d2136de98e4.png?v=1788825367","url":"https:\/\/marisolmarine.com\/products\/crusader-electric-fuel-pump-assembly-47039","provider":"Marisol Marine Company","version":"1.0","type":"link"}