• COBB Silicone Radiator Hose Kit Black | Subaru WRX (08-14)/STI (08-21) (B22400-BK)
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COBB Silicone Radiator Hose Kit Black | Subaru WRX (08-14)/STI (08-21) (B22400-BK)

COBB Silicone Radiator Hose Kit Black | Subaru WRX (08-14)/STI (08-21) (B22400-BK)

B22400-BK

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$120.00 USD
$120.00 USD $120.00 USD
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The COBB Silicone Radiator Hose Kit Black is a high-quality cooling system upgrade designed specifically for Subaru WRX and WRX STI models. Crafted from durable 3-ply reinforced silicone, these hoses replace the factory rubber components to provide enhanced heat resistance and longevity. The kit includes both upper and lower radiator hoses along with four hose clamps, ensuring a complete and secure installation. This upgrade helps maintain optimal engine temperatures during aggressive driving or track use, improving overall cooling efficiency and reliability under demanding conditions.

This hose kit fits 2008–2014 Subaru WRX and 2008–2021 Subaru WRX STI models, making it a direct replacement for the original radiator hoses. It is ideal for enthusiasts seeking improved durability and performance in street, track, or daily driving scenarios. Installation is straightforward with included clamps, allowing for a bolt-on upgrade without modifications. The kit’s compatibility and robust construction make it a reliable choice for maintaining engine cooling integrity in a variety of driving environments.

Overview

COBB Silicone Radiator Hose Kit

Fitment: 2008-2014 Subaru WRX / 2008-2021 Subaru WRX STI

Part #: B22400-BK

Overview

The COBB Silicone Radiator Hose Kit is a premium cooling system upgrade designed specifically for Subaru WRX and WRX STI models from 2008 to 2014 and 2008 to 2021 respectively. This kit replaces the factory rubber radiator hoses with high-quality silicone hoses engineered to withstand higher temperatures and pressures. It is ideal for enthusiasts who demand enhanced durability and reliability from their vehicle’s cooling system, especially under aggressive driving or track conditions.

By upgrading to these reinforced silicone hoses, you help maintain optimal engine temperatures, reducing the risk of overheating and improving overall cooling efficiency. The kit includes both upper and lower radiator hoses along with four hose clamps, providing a comprehensive solution for a straightforward installation.

Key Features

Designed to deliver lasting performance and reliability, the COBB Silicone Radiator Hose Kit offers the following key features:

  • Constructed from 3-ply reinforced silicone for superior heat resistance and durability
  • Replaces factory rubber hoses prone to cracking and swelling over time
  • Includes both upper and lower radiator hoses for complete cooling system upgrade
  • Comes with four hose clamps to ensure secure, leak-free connections
  • Designed specifically for Subaru WRX and WRX STI models within the specified years
  • Helps maintain consistent coolant flow under high-stress driving conditions
  • Black finish provides a clean, professional appearance under the hood

Installation & Fitment

This kit is designed as a direct replacement for the factory radiator hoses on compatible Subaru WRX and WRX STI models. Installation requires basic hand tools and moderate mechanical knowledge. Fitment should be verified against your vehicle’s model year and specifications to ensure compatibility with the part number B22400-BK.

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