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.

More in this category
HPS Performance Silicone Radiator Hoses
Mazda Miata Parts
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