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COBB Silicone Radiator Hose Kit | Subaru WRX (15-21) / Forester XT (14-18) (B43400-BK)

COBB Silicone Radiator Hose Kit | Subaru WRX (15-21) / Forester XT (14-18) (B43400-BK)

SKU:B43400-BK

In stock

Regular price $105.00 USD
Regular price $105.00 USD Sale price $105.00 USD
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The COBB Silicone Radiator Hose Kit is a high-quality cooling system upgrade designed for Subaru WRX and Forester XT models. This kit replaces the factory rubber hoses with durable, heat-resistant silicone hoses that maintain flexibility and resist cracking over time. Constructed from 3-ply reinforced silicone, the hoses provide enhanced durability and reliability under demanding conditions, such as aggressive driving or track use. The kit includes both upper and lower radiator hoses, ensuring a comprehensive replacement that improves cooling system performance and longevity.

This hose kit fits Subaru WRX models from 2015 to 2021 and Forester XT models from 2014 to 2018. It is designed as a direct replacement for the factory radiator hoses, making installation straightforward and bolt-on. Ideal for street, track, and daily driving applications, the COBB Silicone Radiator Hose Kit enhances cooling efficiency and durability for these specific Subaru vehicles. The kit’s compatibility and robust construction make it a reliable choice for enthusiasts seeking improved engine cooling performance.

Overview

COBB Silicone Radiator Hose Kit

Fitment: Subaru WRX (2015-2021) and Forester XT (2014-2018)

Part #: B43400-BK

Overview

The COBB Silicone Radiator Hose Kit is designed to upgrade the cooling system of your Subaru WRX (2015-2021) or Forester XT (2014-2018). This kit replaces the factory rubber radiator hoses with premium silicone alternatives, offering enhanced durability and heat resistance. Ideal for enthusiasts who demand reliability during spirited driving or track use, these hoses help maintain optimal engine temperatures by resisting cracks, leaks, and degradation over time.

Constructed to provide long-lasting flexibility and strength, the kit supports your vehicle’s cooling performance while improving overall system reliability. Whether you’re upgrading for improved endurance or preventative maintenance, this hose kit delivers a robust solution tailored to your Subaru’s cooling needs.

Key Features

This radiator hose kit offers several key benefits designed to enhance your vehicle’s cooling system:

  • Made from 3-ply reinforced silicone for superior strength and durability
  • High heat resistance to withstand elevated engine bay temperatures
  • Maintains flexibility over time to reduce risk of cracking or leaks
  • Includes both upper and lower radiator hoses for a complete upgrade
  • Direct replacement fitment designed specifically for Subaru WRX and Forester XT models
  • Improves cooling system reliability under aggressive driving conditions

Installation & Fitment

The COBB Silicone Radiator Hose Kit is engineered for direct bolt-on installation, matching OEM specifications for a straightforward replacement process. Fitment is specific to Subaru WRX models from 2015 to 2021 and Forester XT models from 2014 to 2018. It is recommended to verify compatibility with your vehicle’s exact year and trim before purchase to ensure proper fitment.

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