Gates 19735 HVAC Heater Hose - Heater To Tee

Gates Molded Heater Hose for Saturn L-Series

The Gates Molded Heater Hose, part number 19735, is a factory-molded coolant hose built for tight engine bay routing. Its OEM-style shape helps it follow the original heater-to-tee path on select Saturn L-Series applications, including Saturn L300 and Saturn LW300 models.

Key Features

• Brand: Gates Molded Heater Hose
• Part number: 19735
• Material: EPDM for coolant-system service
• Factory-molded design for compact engine compartments
• End inside diameters: 15 mm (.61 in) and 20 mm (.78 in)
• Centerline length: 284 mm (11.2 in)
• Configured for heater-to-tee routing
• Approved for coolant, water, air, and marine applications

Product Details

Gates 19735 is a molded coolant hose designed to match the routing needs of smaller, tighter-fitting engine compartments. The EPDM construction supports heater hose service where a formed hose is needed to maintain proper alignment and connection geometry. This Gates Molded Heater Hose is a direct-fit style solution for Saturn L300 and Saturn LW300 heater-to-tee applications, with additional coverage for Saturn LS2 and Saturn LW2.

The Gates molded hose line focuses on OE-style fit and formed routing for vehicles that require a shaped hose rather than a straight length. For buyers searching for a Saturn L300 heater hose, Saturn LW300 molded heater hose, or Gates 19735 coolant hose, this part provides the correct molded profile and connection sizes for the listed applications.

This part cross-references Atlantic Automotive Engineering 64224 for the same application.

Used For These Issues

• Replacing a cracked or leaking heater hose
• Restoring proper coolant flow through the heater circuit
• Correcting hose routing in tight engine compartments
• Addressing soft, swollen, or heat-aged EPDM hose material
• Repairing a damaged heater-to-tee connection on listed Saturn models

Installation Notes and Tips

Verify the end diameters and molded shape against the original hose before installation. Confirm the heater-to-tee routing on the vehicle and inspect adjoining fittings, clamps, and nearby coolant lines for wear or corrosion. After installation, refill and bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.

Quality Assurance

Gates is known for OE-style hose construction and molded cooling-system components. Part number 19735 is built as a factory-molded replacement hose for the listed Saturn applications and is approved for coolant, water, air, and marine use.