HPS Silicone Radiator & Heater Hoses Kit

2004–2006, 2008–2015 Scion xB

Part #: 57-2149-BLK

Overview

The HPS Silicone Radiator & Heater Hoses Kit is engineered specifically for the Scion xB models from 2004 to 2006 and 2008 to 2015. Designed to replace the OEM rubber hoses, this kit offers superior durability and reliability under extreme conditions. Ideal for enthusiasts and daily drivers alike, these hoses help prevent coolant leaks and maintain optimal engine performance by resisting cracking, swelling, and rupturing common with factory rubber components.

Whether you are upgrading your cooling system for enhanced longevity or addressing issues caused by aging hoses, this kit provides a direct-fit solution that combines high-quality materials with precision engineering for a seamless installation experience.

Key Features

HPS silicone hoses are crafted to meet the demands of both street and track use. Key features include:

• Premium-grade, high-heat resistant reinforced silicone construction
• Precisely molded with correct bends and curves for perfect OEM fitment
• Includes 100% stainless steel non-perforated embossed hose clamps that prevent damage to the silicone
• Engineered to withstand prolonged high-temperature service up to 350°F (177°C)
• Prevents coolant leaks and poor engine performance caused by cracked or damaged OEM rubber hoses
• Race-proven design trusted in demanding automotive environments
• Lower water permeation compared to standard EPDM rubber hoses, with recommended regular coolant level checks

Construction & Design

The hoses are constructed from reinforced silicone, a material known for its exceptional heat resistance and flexibility. This ensures that the hoses maintain their shape and integrity even under extreme thermal cycling and pressure. The silicone material also resists oil, chemicals, and ozone degradation better than traditional rubber hoses, extending service life significantly.

Each hose is precision-molded to replicate the OEM hose geometry, ensuring a hassle-free installation without the need for modifications. The included stainless steel clamps are embossed and non-perforated, designed to secure the hoses firmly without cutting into the silicone, preserving the hose’s durability and sealing capability.

Installation & Fitment

This kit is a direct replacement for the factory radiator and heater hoses on 2004–2006 and 2008–2015 Scion xB models. Installation is straightforward and requires no special tools beyond standard hand tools. The hoses’ exact bends and lengths allow for a perfect fit, minimizing installation time and effort. The included stainless steel clamps simplify securing the hoses, ensuring a leak-free connection.

Regular inspection of coolant levels is advised when using silicone hoses in daily-driven vehicles due to their slightly higher water vapor permeation compared to rubber hoses.

What's Included

• Set of reinforced silicone radiator and heater hoses tailored for Scion xB
• 100% stainless steel non-perforated embossed hose clamps for each hose
• Installation instructions and fitment guide

Ideal For

This hose kit is perfect for Scion xB owners seeking a reliable, long-lasting upgrade to their cooling system. It suits daily drivers looking to prevent coolant leaks and maintain engine efficiency, as well as performance enthusiasts who demand high-temperature durability and race-proven components. The kit is also ideal for those restoring or maintaining older Scion xB models with aging or damaged OEM hoses.

HPS Performance specializes in high-temperature reinforced silicone hoses and related joining solutions—couplers, tubing, and clamps—built for boosted and high-heat engine bays. Used in performance and racing applications, HPS products are designed to meet demanding temperature and pressure conditions for dependable charge-air and coolant routing.