HPS Silicone Radiator & Heater Hoses Kit

1997–2006 Jeep Wrangler 4.0L I6

Part #: 57-1689-BLK

Overview

The HPS Silicone Radiator & Heater Hoses Kit is a premium upgrade designed specifically for Jeep Wrangler models equipped with the 4.0L inline-six engine from 1997 through 2006. This kit replaces the original equipment manufacturer (OEM) radiator and heater hoses with durable, high-performance silicone hoses engineered to withstand extreme under-hood temperatures and prolonged exposure to coolant heat. Ideal for Jeep enthusiasts seeking reliable cooling system components, this kit helps prevent common issues such as coolant leaks, hose collapse, and engine overheating caused by aging or damaged OEM hoses.

Whether you are restoring your Jeep Wrangler or upgrading for enhanced durability and longevity, the HPS silicone hose kit offers a direct-fit solution that maintains factory routing and fitment, ensuring hassle-free installation and dependable performance.

Key Features

Engineered for durability and precision fitment, this hose kit offers several advantages over standard rubber hoses:

• Premium-grade, 3-ply reinforced silicone construction for superior heat resistance and flexibility
• Designed with exact bends and curves to match OEM hose routing for a perfect fit
• Includes 100% stainless steel non-perforated embossed hose clamps that secure hoses without cutting or damaging the silicone
• High temperature rating up to 350°F (177°C) to withstand extreme engine bay conditions
• Prevents coolant leaks and engine overheating caused by cracked, collapsed, or damaged OEM hoses
• Race-proven design ensuring long-lasting quality and reliability under demanding conditions
• Compatible with both radiator and heater coolant systems for comprehensive coverage
• Recommended for daily drivers and off-road vehicles requiring enhanced cooling system durability

Construction & Design

The hoses in this kit are crafted from high-quality silicone material reinforced with multiple layers of polyester fabric, providing exceptional strength and resistance to heat, pressure, and aging. Unlike standard EPDM rubber hoses, silicone hoses offer improved flexibility and durability, reducing the risk of cracking or collapsing over time. The kit’s hoses are molded with precise bends and contours to replicate OEM shapes, ensuring seamless integration without the need for modifications.

Each hose is paired with stainless steel non-perforated embossed clamps that provide a secure, even grip around the hose without damaging the silicone surface. This clamp design prevents leaks and extends the lifespan of the hoses by avoiding stress points commonly caused by traditional worm gear clamps.

Installation & Fitment

This HPS Silicone Radiator & Heater Hoses Kit is designed as a direct replacement for the 4.0L inline-six Jeep Wrangler models from 1997 to 2006. Installation requires no cutting, trimming, or modifications, making it suitable for both professional mechanics and experienced DIY enthusiasts. The kit includes all necessary hoses and clamps to replace the upper and lower radiator hoses as well as heater coolant hoses, restoring the cooling system to optimal condition.

Regular inspection of coolant levels is recommended when using silicone hoses, as silicone has a higher water permeation rate compared to standard rubber hoses. Routine maintenance ensures the cooling system remains efficient and leak-free.

What's Included

• Upper radiator hose (silicone)
• Lower radiator hose (silicone)
• Heater coolant hoses (silicone)
• 100% stainless steel non-perforated embossed hose clamps
• Installation instructions

Ideal For

This hose kit is perfect for Jeep Wrangler owners looking to replace worn or damaged OEM radiator and heater hoses with a more durable, heat-resistant solution. It is especially suited for off-road enthusiasts, daily drivers, and anyone seeking to improve the reliability and longevity of their vehicle’s cooling system. The HPS silicone hoses provide peace of mind by reducing the risk of coolant leaks and overheating during demanding driving conditions.

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.