Replace Pontiac Coolant Hoses & Pontiac Lower Radiator Hoses In Canada. Locate Pontiac Coolant Hose Price. Shop Pontiac Lower Radiator Hose. Maintaining the lower radiator hose of your Pontiac is crucial for optimal engine performance. Regular inspections for cracks, leaks, or a spongy feel can preempt sudden failures, while ensuring the hose is free from oil contamination can extend its lifespan. When choosing a replacement, opt for high-quality silicone or reinforced rubber hoses, which offer superior durability and heat resistance. The lower radiator hose serves as the critical channel for coolant between the engine and the radiator; installing it with care to avoid kinks will ensure efficient cooling. For DIY enthusiasts, pairing your purchase with professional-grade clamps can secure a leak-proof fit, enhancing your Pontiac's reliability and driving experience.