{"product_id":"delphi-fp10400-fuel-injection-pressure-regulator","title":"Delphi FP10400 Fuel Injection Pressure Regulator","description":"\u003ch2\u003eFuel Pressure Control for OE-Style Performance\u003c\/h2\u003e\u003cp\u003eThe Delphi FP10400 fuel injection pressure regulator is built for precise fuel system control in select Nissan, INFINITI, and Mercury applications. With OE heritage behind the design, it supports consistent fuel pressure delivery for drivability and engine response.\u003c\/p\u003e\u003cp\u003eCompatible with 1993-2004 Nissan Frontier, Xterra, Quest, Pathfinder, and INFINITI QX4 applications, the Delphi FP10400 is a direct-fit fuel injection pressure regulator for vehicles that require a 44 psi system pressure specification.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMetal construction for fuel system durability\u003c\/li\u003e\n\u003cli\u003eFixed-pressure design; not adjustable\u003c\/li\u003e\n\u003cli\u003e44 psi system pressure specification\u003c\/li\u003e\n\u003cli\u003e1 inlet with push-in connection\u003c\/li\u003e\n\u003cli\u003e1 outlet with hose connection\u003c\/li\u003e\n\u003cli\u003eBolt-on mounting type\u003c\/li\u003e\n\u003cli\u003eNo gauge port\u003c\/li\u003e\n\u003cli\u003eOE-informed aftermarket design from Delphi\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Overview\u003c\/h2\u003e\u003cp\u003eDelphi FP10400 is a fuel injection pressure regulator engineered around OE experience and supplier knowledge developed over decades of original-equipment service. It uses a metal body, an 11.0 mm inlet port diameter, and an 8.0 mm outlet port diameter to match the specified fuel system layout. This part cross-references Standard Ignition PR95 and Walker Products 255-1075 for the same application.\u003c\/p\u003e\u003cp\u003eFor drivers searching for a fuel injection pressure regulator for 1996-2000 Nissan Pathfinder, 1997-2000 INFINITI QX4, or 1999-2004 Nissan Frontier and Xterra, the Delphi FP10400 provides the correct pressure-control architecture for the listed vehicles. It also fits 1999-2002 Nissan Quest and 1993-1998 Mercury Villager applications.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part Addresses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFuel pressure that is outside the specified range\u003c\/li\u003e\n\u003cli\u003eHard starting caused by unstable fuel delivery\u003c\/li\u003e\n\u003cli\u003eRough idle related to pressure regulation issues\u003c\/li\u003e\n\u003cli\u003eFuel mixture concerns tied to inconsistent rail pressure\u003c\/li\u003e\n\u003cli\u003eDriveability problems on Nissan Frontier, Xterra, Pathfinder, Quest, QX4, and Mercury Villager applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the inlet and outlet connection style before installation: this regulator uses a push-in inlet and hose outlet with bolt mounting. Confirm the vehicle’s fuel system calls for a 44 psi regulator and match the application by year, make, and model before replacement. Clean surrounding fuel system components during service and inspect hoses and seals for wear before reassembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDelphi builds this regulator using OE experience and knowledge gained from supplying major automakers, with aftermarket construction informed by original-equipment standards. The FP10400 is intended to meet the fitment and pressure requirements listed for the covered Nissan, INFINITI, and Mercury applications.\u003c\/p\u003e","brand":"Delphi","offers":[{"title":"Default Title","offer_id":43388599107765,"sku":"BBMX-FP10400","price":91.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DE_FP10400_Fro.jpg?v=1774712462","url":"https:\/\/www.partcatalog.com\/products\/delphi-fp10400-fuel-injection-pressure-regulator","provider":"PartCatalog","version":"1.0","type":"link"}