{"product_id":"topscope-fuel-pump-assembly-for-chevy-silverado-gmc-sierra-1999-2004-direct-oe-replacement-with-sending-unit-pressure-sensor","title":"TOPSCOPE Fuel Pump Assembly for Chevy Silverado \u0026 GMC Sierra 1999-2004 — Direct OE Replacement with Sending Unit \u0026 Pressure Sensor","description":"\u003cp\u003e\u003cstrong\u003eTOPSCOPE's fuel pump assembly replaces OE part E3500M to restore reliable fuel delivery and accurate fuel-level readings on compatible Chevy and GMC pickups.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned to be a direct replacement for the original equipment, this electric fuel pump assembly includes the sending unit and fuel pressure sensor needed for smooth operation in select Chevy Silverado and GMC Sierra models from 1999 through 2004. Built to match factory fit and function, the unit simplifies installation while maintaining the fuel pressure and tank-level feedback required by the vehicle's fuel system and dashboard gauges.\u003c\/p\u003e\n\n\u003ch3\u003eWill this fuel pump fit my truck?\u003c\/h3\u003e\n\u003cp\u003eConfirming fitment is essential: the TOPSCOPE pump is intended for specific model years and engine sizes listed in the product details. Check the fitment tool or your vehicle's original part number to ensure compatibility before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces OE part number E3500M for direct fit.\u003c\/li\u003e\n  \u003cli\u003eCompatible with Silverado 1500 V6 4.3L and V8 4.8L\/5.3L (1999–2003).\u003c\/li\u003e\n  \u003cli\u003eCompatible with Silverado 1500 V8 6.0L (2003); Silverado 3500 V8 6.0L\/8.1L (2001–2003).\u003c\/li\u003e\n  \u003cli\u003eCompatible with GMC Sierra 1500 V6 4.3L and V8 4.8L\/5.3L (1999–2003), and Sierra 2500 V8 5.3L\/6.0L (1999–2000).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat components are included and how do they compare to the original?\u003c\/h3\u003e\n\u003cp\u003eThe assembly contains the pump, integrated sending unit, and a fuel pressure sensor designed to replicate the factory assembly's performance. That means you get the same mounting pattern, electrical connector compatibility, and tank interface to minimize modifications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete pump assembly with sending unit for accurate fuel level readings.\u003c\/li\u003e\n  \u003cli\u003eFuel pressure sensor included to maintain correct system pressure data.\u003c\/li\u003e\n  \u003cli\u003eManufactured as a direct OE replacement to match original fit and connectors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what should I prepare?\u003c\/h3\u003e\n\u003cp\u003eInstallation follows the same steps as replacing an OE in-tank pump, so basic automotive experience and common tools are usually sufficient. Plan for depressurizing the fuel system, safely supporting the vehicle or tank, and following vehicle-specific service instructions for access and seal replacement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTools needed: basic hand tools, fuel line disconnects, and safety equipment.\u003c\/li\u003e\n  \u003cli\u003eExpect time for tank removal or access through service cover, depending on model.\u003c\/li\u003e\n  \u003cli\u003eReplace tank O-ring or sealing gasket to prevent leaks after installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and support come with this fuel pump?\u003c\/h3\u003e\n\u003cp\u003eTOPSCOPE backs this fuel pump assembly with a 1-year (365-day) unlimited mileage warranty, giving protection against manufacturing defects during normal use. Customer support and return options are available through the seller—always verify your fitment before installation to avoid unnecessary returns.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1 year \/ 365 days unlimited mileage warranty included.\u003c\/li\u003e\n  \u003cli\u003eContact seller support for warranty claims and troubleshooting help.\u003c\/li\u003e\n  \u003cli\u003eDouble-check fitment details to ensure correct part selection before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This TOPSCOPE fuel pump assembly is intended for owners, mechanics, and restoration specialists working on late-1990s to early-2000s Chevrolet Silverado and GMC Sierra trucks that require a direct OE-replacement pump with sending unit and fuel pressure sensor. It's particularly suited for those who want a like-for-like replacement (E3500M equivalent) to restore fuel delivery, maintain accurate fuel gauge operation, and avoid adapting non-original parts. If you need guaranteed compatibility, follow the vehicle-year and engine-size compatibility list and verify against your truck's existing part number before purchase.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this replace part number E3500M?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The TOPSCOPE assembly is designed as a direct replacement for OE part E3500M.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the fuel pressure sensor included?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The assembly includes the fuel pressure sensor and the sending unit for gauge accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TOPSCOPE","offers":[{"title":"Default Title","offer_id":48081031889054,"sku":"B014HB983M","price":84.43,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/topscope-fuel-pump-front-assembly.jpg?v=1785795035","url":"https:\/\/northtrailauto.ca\/products\/topscope-fuel-pump-assembly-for-chevy-silverado-gmc-sierra-1999-2004-direct-oe-replacement-with-sending-unit-pressure-sensor","provider":"North Trail Auto","version":"1.0","type":"link"}