{"product_id":"nissan-ni-54421","title":"Nissan NI-54421 Fuel Drain Pressure \/ Restrict Gauge Adapter","description":"\u003cp class=\"MsoNormal\"\u003eNissan NI‑54421 – Fuel Drain Pressure \/ Restriction Gauge Adapter (OEM Fuel‑System Diagnostic Tool)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThe \u003cb\u003eNissan NI‑54421 Fuel Drain Pressure \/ Restriction Gauge Adapter\u003c\/b\u003e is a genuine OEM diagnostic adapter engineered to connect precision gauges to Nissan fuel‑system drain circuits for accurate pressure and restriction testing. Modern fuel systems—especially diesel and high‑pressure gasoline platforms—require precise measurements to diagnose flow restrictions, clogged filters, pump performance issues, and return‑line pressure abnormalities. The NI‑54421 provides the correct interface to perform these tests safely, cleanly, and in full compliance with Nissan factory diagnostic procedures.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThis adapter is referenced throughout Nissan service manuals for diagnosing fuel‑delivery problems, identifying restriction points, verifying pump output, and evaluating return‑line pressure. Its precision‑machined design ensures a leak‑free connection and reliable readings, making it essential for accurate troubleshooting of fuel‑system performance issues.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\n\u003cul style=\"margin-top: 0in;\" type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\n\u003cb\u003eOEM‑Approved Fuel‑System Adapter\u003c\/b\u003e Designed specifically for Nissan engines requiring drain‑line pressure or restriction testing.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\n\u003cb\u003eEnables Accurate Pressure \u0026amp; Restriction Measurements\u003c\/b\u003e Provides a secure, leak‑free interface for diagnostic gauges and test equipment.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\n\u003cb\u003eSupports Diesel \u0026amp; High‑Pressure Fuel Diagnostics\u003c\/b\u003e Ideal for evaluating pump output, filter restriction, return‑line pressure, and flow stability.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\n\u003cb\u003eProtects Fuel Lines \u0026amp; Sealing Surfaces\u003c\/b\u003e Eliminates the need to disturb sensitive fittings or disconnect fuel lines.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\n\u003cb\u003eDurable, Shop‑Ready Construction\u003c\/b\u003e Built for repeated use in dealership service departments and high‑volume diagnostic environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor the Nissan Tools Catalog, click \u003ca href=\"https:\/\/www.tillmantools.com\/nissan-s\/2389.htm\"\u003ehere\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLooking for Nissan Repair Tools?\u003c\/strong\u003e\u003cbr\u003eRest assured, we're here to guide you. If you can't find the Nissan Tech-Mate Tools you're searching for in our catalog, please don't hesitate to contact us. Our dedicated and knowledgeable team is ready to assist with any inquiries and help you find the right tool to meet your needs. You can reach us directly at (909) 334-4400. Tillman carries the broadest online inventory of Nissan automotive tools.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWide Selection of Tools:\u003c\/strong\u003e\u003cbr\u003eAre you searching for hard-to-find quality tools, high-end electrician tools, auto-body repair tools and supplies, or forestry tools at affordable prices? Look no further! With FREE shipping on selected items, our store has everything you need. Whether you're an authorized repair shop, an independent repair shop, or a DIY enthusiast needing specialty automotive tools, hand tools, or equipment, we have you covered. Our selection includes parts and specialty tools for Harley-Davidson, Ducati, and Suzuki to ensure the job gets done correctly.\u003c\/p\u003e","brand":"Tech-Mate Tools \u0026 Equipment","offers":[{"title":"Default Title","offer_id":51336631451812,"sku":"NI-54421","price":175.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3718\/1860\/files\/NI-54420.png?v=1779750093","url":"https:\/\/tillmantools.com\/products\/nissan-ni-54421","provider":"Tillman Tools LLC","version":"1.0","type":"link"}