HPS Performance Silicone Ancillary Hose Kit Black 2005 WRX / 2005 STI | High-Temperature Silicone | Coolant Hose Kit

Overview

The HPS Performance Silicone Ancillary Hose Kit is a direct replacement solution for the ancillary coolant hoses on the 2005 Subaru Impreza WRX 2.0L Turbo and WRX STI 2.5L Turbo models. Designed specifically for these platforms, this kit addresses common issues such as coolant leaks and engine overheating caused by aging or damaged OEM rubber hoses. It is ideal for Subaru enthusiasts looking to maintain or improve the reliability of their cooling system with a durable, high-quality upgrade.

Engineered with precision, the hoses feature the correct bends and curves to ensure a perfect fit without modification. Constructed from reinforced high-temperature silicone, these hoses are built to withstand extreme heat conditions up to 350°F, far exceeding the capabilities of standard rubber hoses. The kit also includes stainless steel embossed hose clamps designed to secure the hoses without damaging them, reflecting HPS Performance’s commitment to quality and longevity.

For Subaru owners, maintaining optimal coolant flow and preventing leaks is critical to preserving engine performance and reliability, especially under demanding driving conditions. This silicone hose kit offers enhanced durability and resistance to heat and pressure, helping to avoid common cooling system failures. While silicone hoses have a higher water permeation rate than rubber, regular coolant level checks ensure consistent engine cooling and peace of mind for daily drivers and track enthusiasts alike.

Features & Specifications

This HPS Performance Silicone Ancillary Hose Kit is engineered for the 2005 Subaru WRX and WRX STI and features high-temperature reinforced silicone construction. Designed with precise bends for a perfect OEM fit, it delivers superior heat resistance and durability for Subaru enthusiasts seeking reliable cooling system upgrades.

• Brand: HPS Performance
• Product: Silicone Ancillary Hose Kit Black 2005 WRX / 2005 STI
• Part Number: 57-1807--BLUK
• Fitment: 2005 Subaru WRX 2.0L Turbo, 2005 Subaru WRX STI 2.5L Turbo
• Material: High Temperature Reinforced Silicone
• Finish: Black
• Construction: Molded with precise bends and curves
• Origin: Not specified
• Maximum Temperature Rating: 350°F (177°C)
• Included Clamps: 100% stainless steel non-perforated embossed hose clamps
• OEM Part Numbers Replaced: 807611031, 807611090, 807612011, 807615182, 21204AA691, 21204AA711, 21204AA850, 45162AE000, 45162AE010, 99078AA073, 99078AA450
• Warranty: 2 Years
• Weight: 3 lb

Key Benefits

• Durability: Reinforced silicone resists cracking, collapsing, and heat degradation better than OEM rubber hoses.
• Fitment: Engineered with exact bends and curves for a direct OEM replacement fit, eliminating the need for modifications.
• Heat Resistance: Rated for continuous service up to 350°F, ideal for turbocharged Subaru engines operating under high thermal loads.
• Leak Prevention: Includes stainless steel embossed clamps that secure hoses without cutting into the silicone, reducing leak risk.
• Reliability: Helps prevent engine overheating and coolant loss, critical for maintaining Subaru engine performance and longevity.
• Maintenance Friendly: Silicone hoses require regular coolant level checks due to higher water permeation, promoting proactive vehicle care.

What's Included

• 1× HPS Performance Reinforced Silicone Ancillary Coolant Hose Kit
• Multiple 100% stainless steel non-perforated embossed hose clamps

Installation & Compatibility

Installation of the HPS Performance Silicone Ancillary Hose Kit is straightforward for those with basic mechanical skills, as the hoses are designed to be a direct bolt-on replacement with no modifications required. The included stainless steel clamps simplify securing the hoses properly. No special tools beyond standard hand tools are necessary. Subaru owners should verify fitment for their specific 2005 WRX or WRX STI model to ensure compatibility. Regular coolant level monitoring is recommended after installation due to the silicone material’s higher water permeation rate. This kit does not require tuning or additional modifications.

• Professional Installation: DIY-Friendly
• Modifications Required: None
• Verify Compatibility: Confirm fitment for 2005 Subaru WRX 2.0L Turbo and WRX STI 2.5L Turbo

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