Browse Nissan Upper Radiator Hoses Replacement & Nissan Top Radiator Hoses In Canada. Get Nissan Top Radiator Hose. Replace Nissan Upper Radiator Hoses. Maintaining the upper radiator hose in your Nissan is crucial for preventing engine overheating and ensuring peak performance. Regular inspections for cracks, bulges, or leaks can signal the need for a replacement to avoid costly repairs. To extend its lifespan, ensure the hose is free from oil contamination and check clamps for proper tightness. When selecting a new hose, opt for high-quality materials like reinforced silicone or Epdm rubber, known for their durability and heat resistance. Installation is straightforward, but ensuring a snug fit without overtightening is key to preventing damage and ensuring a reliable seal. Shop with confidence for your Nissan’s cooling system needs and enjoy the peace of mind that comes with a well-maintained vehicle.