Gates 18942 HVAC Heater Hose - Heater To Pipe-1 or Heater To Pipe-2

Gates Molded Heater Hose for Tight Engine Bays

The Gates Molded Heater Hose, part number 18942, is a factory-molded coolant hose built for smaller, tighter engine compartments. It uses EPDM construction and OE-style shaping to support heater, coolant, water, and air routing in the correct formed path.

Compatible With select Mitsubishi Expo, Mitsubishi Expo LRV, Dodge Colt, and Mazda B2600 applications, this molded heater hose follows the original routing needed for service replacement. Gates 18942 is also approved for marine applications and is cross-referenced with Four Seasons 63282 for the same application.

Key Features

• Gates Molded Heater Hose line for OE-style replacement routing
• Part number 18942
• EPDM material for coolant, water, and air service
• Factory-molded shape for compact engine compartments
• End 1 inside diameter: 0.62 in. (16 mm)
• End 2 inside diameter: 0.62 in. (16 mm)
• Centerline length: 15.3 in. (389 mm)
• Molded construction with no quick-connect fittings

Product Details

Gates 18942 is a molded HVAC heater hose engineered to match the formed layout used in the original cooling system path. The 0.62-inch inside diameter at both ends and 15.3-inch centerline length make it a direct-fit style hose for the listed vehicles, including 1990-1993 Mazda B2600 heater to pipe-1 applications and 1993-1995 Mitsubishi Expo heater to pipe positions. If you are replacing a worn heater hose on a Dodge Colt or Mitsubishi Expo LRV, this formed hose helps restore the correct hose routing without forcing a straight hose into a tight bend.

Common Problems This Hose Can Address

• Coolant leaks from cracked or aged heater hose material
• Restricted heater flow caused by collapsed or softened hose sections
• Poor hose routing in compact engine compartments
• Improper fit from universal hose substitutions
• Service replacement needs for heater-to-pipe connections on listed vehicles

Installation Notes and Tips

Verify the hose path, end diameters, and centerline length before installation. Match the molded shape to the original routing on the vehicle and inspect adjoining pipes, clamps, and heater connections for wear or corrosion. This part number 18942 is listed for heater to pipe-1 and heater to pipe-2 positions depending on application, so confirm the exact vehicle fitment before ordering.

• Fits 1990-1993 Mazda B2600, Heater To Pipe-1
• Fits 1993 Dodge Colt, Heater To Pipe-1
• Fits 1993 Mitsubishi Expo, Heater To Pipe-1
• Fits 1993 Mitsubishi Expo LRV, Heater To Pipe-1
• Fits 1994 Dodge Colt, Heater To Pipe-2
• Fits 1994-1995 Mitsubishi Expo, Heater To Pipe-2
• Fits 1994 Mitsubishi Expo LRV, Heater To Pipe-2

Quality Assurance

Gates is known for OE-style hose engineering across cooling and HVAC service parts. The molded EPDM construction and factory-formed profile support consistent fitment for the listed Mitsubishi Expo, Dodge Colt, and Mazda B2600 applications.