Gates 12342 HVAC Heater Hose - Throttle Body Outlet

Gates Molded Heater Hose for Toyota Sequoia

The Gates 12342 molded heater hose is an OEM-style coolant hose built for tight engine bays and precise routing. It is made from EPDM and formed to match the factory shape needed for the throttle body outlet on select Toyota Sequoia models.

Key Features

• Brand: Gates Molded Heater Hose
• Part number: 12342
• EPDM construction for coolant, water, and air service
• Factory-molded shape for smaller, tighter-fitting engine compartments
• End inside diameter: 8 mm (0.31 in) at both ends
• Centerline length: 384 mm (15.11 in)
• Approved for marine applications
• Fits 2014-2022 Toyota Sequoia, throttle body outlet

Product Details

Gates Molded Heater Hose line focuses on formed replacement hoses that follow OE-style routing and fitment. This hose is shaped for the throttle body outlet application on 2014-2022 Toyota Sequoia models, helping maintain the correct hose path in compact engine compartments. The Gates 12342 is a direct-fit style replacement for vehicles that require a molded hose with matching end diameters and centerline length.

This part cross-references Carlson 13342 for the same application.

Common Problems This Hose Can Address

• Cracked or deteriorated heater hose material
• Incorrect hose routing in a tight engine bay
• Leaks at the throttle body outlet connection
• Heat-related hose hardening or swelling
• Replacement needs on Toyota Sequoia coolant hose service

Installation Notes and Tips

Verify the hose routing, end diameters, and centerline length before installation. Confirm the throttle body outlet location on your Toyota Sequoia and compare the original hose shape to the molded profile of part number 12342. Inspect adjoining clamps and connection points for wear or corrosion before reassembly.

Quality Assurance

Gates manufactures this molded heater hose as an OE-style replacement built to match factory fitment requirements for the listed Toyota Sequoia applications. The EPDM construction and molded design support consistent routing in demanding underhood conditions.