Gates 22673 Radiator Coolant Hose - Lower

Gates 22673 Molded Coolant Hose for Lexus IS300

The Gates 22673 molded coolant hose is built for radiator coolant routing in select Lexus applications, with OEM-quality specifications and a formed shape that matches the vehicle’s cooling system layout. It is a direct-fit lower hose solution for 2001-2005 Lexus IS300 models.

Gates Molded Coolant Hose products are engineered as replacement hoses for upper, lower, bypass, heater, and other coolant circuits. This line is built to cover a wide range of cooling-system service needs while maintaining the molded profile required for proper routing and fit.

Key Features

• Part number: Gates 22673
• Fits 2001-2005 Lexus IS300, lower
• Molded EPDM construction for coolant-system service
• Formed hose shape helps match OE routing
• End inside diameters: 33 mm and 36 mm
• Centerline length: 511 mm
• No spring and no quick-connect fittings

Detailed Description

This radiator coolant hose is designed for the lower cooling circuit on the Lexus IS300 and follows the molded profile needed for a proper replacement. The EPDM material is commonly used in coolant applications for its resistance to heat and coolant exposure, while the molded construction helps maintain the original hose path and connection geometry. If you are replacing a worn or leaking lower radiator hose on a 2001-2005 Lexus IS300, Gates 22673 provides the correct fitment reference for that application. This part cross-references Dayco 72437 and Anchor 9306 for the same application.

Common Problems This Hose Can Address

• Coolant leaks from a cracked or aged lower radiator hose
• Softening, swelling, or deterioration from heat cycling
• Poor hose routing caused by a collapsed or misshaped hose
• Cooling-system service on a Lexus IS300 with a damaged molded hose
• Replacement of a hose that no longer seals properly at the ends

Installation Notes and Tips

Before installation, verify the hose routing and connection sizes against the removed part. Inspect the mating necks, clamps, and nearby cooling components for wear, corrosion, or residue before fitting the new hose. After installation, refill and bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.

Quality Assurance

Gates manufactures molded coolant hoses to OEM-quality specifications for radiator and heater circuit replacement. The Gates 22673 is part of the brand’s molded coolant hose line, which is built to cover a broad range of cooling-system applications with formed-fit replacement geometry.