HPS Performance High Temp Reinforced Silicone Radiator Coolant Hose Kit, Red, 57-2129-RED : 1999-2004 Jeep Grand Cherokee 4.0L

HPS Silicone Radiator Coolant Hose Kit

1999–2004 Jeep Grand Cherokee 4.0L

57-2129-RED

Overview:

The HPS High Temp Reinforced Silicone Radiator Coolant Hose Kit is a premium replacement solution designed specifically for the 1999 to 2004 Jeep Grand Cherokee equipped with the 4.0L engine. This kit upgrades the original equipment manufacturer (OEM) rubber radiator hoses with durable, high-performance silicone hoses engineered to withstand extreme heat and pressure conditions. Ideal for Jeep owners seeking enhanced reliability and longevity, this hose kit ensures consistent cooling system performance whether on daily drives or demanding off-road adventures.

Over time, stock rubber hoses can degrade, crack, or collapse, leading to coolant leaks and potential engine overheating. The HPS silicone hoses provide a robust alternative that resists aging and environmental damage, offering peace of mind and improved under-hood durability.

Key Features:

Engineered for durability and performance, this hose kit includes several advanced features that set it apart from standard replacements:

• High temperature resistance rated up to 350°F (177°C), suitable for harsh engine environments
• 3-ply reinforced silicone construction for superior strength and flexibility
• Includes 100% stainless steel industrial grade embossed hose clamps that securely fasten without damaging the silicone hoses
• Lower radiator hose incorporates a stainless steel coil insert to prevent hose collapse under negative pressure
• Direct OEM replacement with precise bends and dimensions for an exact fit
• Replaces OEM part numbers 52079401AB and 52079406AC
• Vibrant red color adds a custom look to the engine bay while providing UV and ozone resistance

Construction & Design:

The hoses are constructed from premium-grade silicone, known for its excellent thermal stability and resistance to cracking, swelling, and deterioration compared to traditional rubber hoses. The 3-ply reinforcement enhances pressure handling capabilities, ensuring the hoses maintain their shape and integrity under demanding conditions. The lower radiator hose’s stainless steel coil insert is a critical design feature that prevents hose collapse caused by vacuum pressure during engine operation, a common failure point in stock hoses.

Each hose is manufactured with precision to match the original factory specifications, making installation straightforward and eliminating the need for modifications. The included stainless steel embossed clamps provide a secure, corrosion-resistant fastening method that protects the hose material and ensures leak-free connections.

Installation & Fitment:

This HPS silicone radiator hose kit is designed as a direct replacement for the Jeep Grand Cherokee 4.0L models from 1999 through 2004. Installation is simple and requires no special tools beyond standard hand tools. The hoses feature exact OEM-style bends and lengths, allowing for a hassle-free swap with the factory rubber hoses. The included stainless steel clamps make securing the hoses quick and reliable, ensuring a tight seal and preventing coolant leaks.

What's Included:

• Upper radiator silicone hose
• Lower radiator silicone hose with stainless steel coil insert
• Set of 100% stainless steel embossed hose clamps

Ideal For:

This hose kit is perfect for Jeep Grand Cherokee owners who want to upgrade their cooling system with a more durable and heat-resistant solution. It is especially suited for enthusiasts who drive in extreme conditions, including off-roaders and those who demand reliable cooling performance under high stress. It also appeals to anyone looking to replace aging or failing OEM rubber hoses with a long-lasting, high-quality alternative that maintains factory fitment and appearance.