Browse Chevrolet Astro Van Upper Radiator Hoses. Order Chevrolet Astro Van Top Radiator Hoses In Canada & Chevrolet Astro Van Top Radiator Hose. Maintaining the upper radiator hose in your Chevrolet Astro Van is crucial for preventing overheating and ensuring efficient engine operation. Regular inspections for soft spots, cracks, and leaks can signify the need for a replacement. To extend its lifespan, ensure the hose is free from oil contamination and the clamps are tight, yet not overtightened to avoid damage. When selecting a new hose, opt for high-quality materials like reinforced silicone or Epdm rubber, which offer durability and heat resistance. Installation is straightforward, but remember to secure the hose firmly and double-check for a proper seal to prevent future issues. Choose the right upper radiator hose from our selection and keep your Astro Van running smoothly.