Fitment Information

• Mazda Mazdaspeed Miata 1.8L Turbo (2004, 2005)

Specs & Features

• Coolant Hose Material: High-Temperature Reinforced Silicone
• Color: Black / Blue / Red
• Warranty: 2-Year Limited
• Improves cooling efficiency, durability, and heat resistance while helping prevent cracking, swelling, collapsing, and coolant leaks common with factory rubber radiator hoses.
• Engineered by HPS Performance to replace the factory upper radiator coolant hose and deliver more reliable coolant flow under daily driving and turbocharged performance conditions.
• Features a precision-molded 3-ply reinforced silicone hose design with correct bends and curves for perfect OEM-style fitment, improved durability, and resistance to extreme heat up to 350°F. Replaces OEM part number BP8J-15-186B.
• Includes HPS high-temperature reinforced silicone upper radiator hose and 100% stainless steel industrial-grade embossed hose clamps for secure, leak-free performance.
• Installation requires no cutting or modifications and is designed as a direct bolt-on replacement.

In the Box

• HPS Performance Reinforced Silicone Upper Radiator Hose
  
• HPS Performance 100% Stainless Steel Embossed Hose Clamps

Product Description

Upgrade the cooling system on your 2004–2005 Mazda Mazdaspeed Miata 1.8L Turbo with the HPS Performance High-Temp Reinforced Upper Silicone Radiator Hose. Designed as a direct replacement for the aging OEM rubber upper radiator hose, this upgrade helps eliminate common issues like cracking, softening, swelling, and coolant leaks while improving long-term cooling system reliability.

Constructed from high-temperature 3-ply reinforced silicone and engineered for turbocharged engine bay conditions, this hose provides improved durability and consistent coolant flow during spirited street driving, track use, or high-temperature operation. Enthusiasts commonly choose reinforced silicone hoses for improved heat resistance and longevity compared to aging OEM rubber hoses, especially in performance applications. 

With a perfect OEM-style fit and included stainless steel clamps, this kit delivers both performance and reliability while maintaining a clean, high-performance engine bay appearance.