{"product_id":"power-steering-pump-21-394-fit-for-nissan-infiniti-reliable","title":"Power Steering Pump 21-394 Fit for Nissan\/Infiniti - Reliable","description":"\u003cp\u003eOur review of the 21-394 power steering pump finds it best suited for owners of mid-2000s to late-2010s Nissan 370Z and a wide range of Infiniti EX, FX, G, M, Q and QX models who need a direct-fit replacement that restores hydraulic steering assist. The bottom line: this pump reproduces OE dimensions, is built from aluminum and iron for heat and corrosion resistance, and improves steering assist and comfort on long drives, making it a practical repair choice when the original pump fails.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect-fit compatibility:\u003c\/strong\u003e Replaces OE part numbers including 21-394 and 21-415 so it installs without major modification on listed Nissan and Infiniti models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide vehicle coverage:\u003c\/strong\u003e Fits many model years and series including 370Z, EX35\/37, FX35\/37, G35\/37, M35\/M37, Q40\/Q50\/Q60\/Q70\/Q70L and QX50\/QX70 for straightforward cross-compatibility checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e Made from corrosion-resistant aluminum with iron components, designed to tolerate high under-hood temperatures and regular drivetrain stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestores steering effort:\u003c\/strong\u003e Returns power assist for smoother turning, improved stability and reduced driver fatigue on longer drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement for multiple OE codes:\u003c\/strong\u003e Covers several OEM references (18601492-101\/102\/103) to simplify part selection when matching old pump numbers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty support:\u003c\/strong\u003e Includes a one-year warranty for added peace of mind after installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis pump is aimed at DIY mechanics and independent shops replacing a failed hydraulic power steering pump on compatible Nissan 370Z or Infiniti models. It is especially useful when a like-for-like, dimensionally correct unit is required to avoid re-routing hoses or modifying mounts.\u003c\/p\u003e\n\u003cp\u003eDrivers who need perfect OEM-level noise control or who have vehicles with four-wheel steering should compare fitment carefully or consult a dealer, since several model exceptions are noted for 4WS-equipped cars and some specific drivetrains.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect-fit design simplifies installation and reduces the need for extra parts.\u003c\/li\u003e\n\u003cli\u003eSolid aluminum and iron construction gives confidence in heat and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eRestores steering assist effectively, improving drivability and reducing fatigue.\u003c\/li\u003e\n\u003cli\u003eGood value for money compared with dealer-only replacement options.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome customers report elevated noise levels after installation, so expect variability compared with the original unit.\u003c\/li\u003e\n\u003cli\u003eNot compatible with certain 4-wheel steering models; verify fitment before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003ePower steering pump (power assist pump) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Models\u003c\/td\u003e\n\u003ctd\u003eNissan 370Z and Infiniti EX, FX, G, M, Q, QX series (selected years)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Fitment\u003c\/td\u003e\n\u003ctd\u003eV6 3.5L and 3.7L applications as listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOE Part Numbers Replaced\u003c\/td\u003e\n\u003ctd\u003e21-394, 21-415, 21-416, 18601492-101\/102\/103\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eCorrosion-resistant aluminum with iron components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eOne-year warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 21-394 power steering pump is a pragmatic, cost-effective replacement for owners of supported Nissan and Infiniti models who want a direct-fit unit that restores hydraulic assist and holds up under heat. It offers solid construction and broad compatibility, though potential buyers should check fitment carefully for 4-wheel steering exceptions and be aware that noise performance can vary between units.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this pump fit my model year?\u003c\/strong\u003e\u003cbr\u003eCheck the detailed vehicle list for exact model years and engine sizes; it fits many 2007-2020 Nissan and Infiniti V6 3.5L and 3.7L models but verify before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include a pulley and is it ready to install?\u003c\/strong\u003e\u003cbr\u003eThe product is listed as a power assist pump with pulley replace for related OE numbers, but confirm the package contents in the product listing and compare to your removed unit before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat about noise after installation?\u003c\/strong\u003e\u003cbr\u003eMost buyers report good function and fit, but some have noted noise; proper fluid level, bleeding and belt tension can reduce noise, and the one-year warranty covers manufacturing defects.\u003c\/p\u003e","brand":"Autodevil","offers":[{"title":"Default Title","offer_id":48163767648475,"sku":"B0DDXVGWPY","price":80.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71ixoyZM5rL._AC_SL1500.jpg?v=1769137896","url":"https:\/\/gearmusthave.com\/products\/power-steering-pump-21-394-fit-for-nissan-infiniti-reliable","provider":"GearMustHave","version":"1.0","type":"link"}