Find GMC Sierra 1500 Pickup Fuel Pump Price. Replace GMC Sierra 1500 Pickup Diesel Fuel Pump Components & GMC Sierra 1500 Pickup Parts Of A Fuel Pump Assembly. To ensure the longevity of your GMC Sierra 1500 Pickup's fuel pump components, regular maintenance is paramount. Look out for signs of wear such as sputtering at high speeds or a loss of power, which signal the need for replacement. When selecting a new fuel pump, consider OEM replacements or aftermarket options with superior ethanol resistance and enhanced durability to match your driving demands. High-grade materials and proper installation are crucial for optimal performance and fuel efficiency. By investing in quality components and adhering to a maintenance routine, you'll extend the life of your fuel system and maintain your truck's robust performance.