Gates
Molded Heater Hose

Gates 12478 HVAC Heater Hose - Inverter (Inlet)

Brand Gates 12478
Position Inverter (Inlet)
Material Epdm
End 1 Inside Diameter .63
End 1 Inside Diameter 16
End 2 Inside Diameter .63
End 2 Inside Diameter 16
Centerline Length 147
Centerline Length 5.8
Branch Quantity 0
9839 Yes
9845 0
Product line Molded Heater Hose
Fits Kia · 2 vehicles

OE-style routing. Factory-molded shape helps match tight engine-compartment hose paths.

EPDM construction. Material is suited for coolant, water, and air service.

Molded Heater Hose line. Built for compact thermal-system routing where straight hose will not work.

Cross-references BBB Industries 13478, Gates 12478 and 369602B001 for the same application. See all 4.

$23.68Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

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Step 2 — Quantity
Order total $23.68
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Overview

The Gates 12478 molded heater hose is an OEM-style coolant hose built for compact engine and thermal-management routing. It uses factory-molded shaping and EPDM construction to handle coolant, water, and air service in tight spaces.

Key Features

  • Factory-molded design for cleaner routing in confined engine compartments
  • EPDM construction for coolant and heat resistance
  • Small inside diameter for tight-fit hose connections
  • Suitable for coolant, water, and air applications
  • Gates Molded Heater Hose line for OE-style replacement needs

Detailed Description

Gates 12478 is a molded heater hose from the Molded Heater Hose product line, shaped to match compact routing requirements where straight hose sections are not practical. The EPDM material supports thermal-fluid service, while the molded form helps maintain a controlled path through crowded packaging. This part cross-references BBB Industries 13478 for the same application. For buyers searching for a Kia Niro EV heater hose or a molded coolant hose for inverter inlet service, this part number 12478 provides a direct OE-style solution. It is also relevant for applications that call for a Gates 12478 molded hose with a 16 mm connection size and 5.8 in centerline length.

What It Is Used For

  • Replacing a worn or damaged molded coolant hose
  • Restoring proper fluid routing in a compact thermal system
  • Addressing leaks at hose connection points
  • Replacing a hose with incorrect molded shape or length

Installation Notes and Tips

Compatible With 2019-2020 Kia Niro EV, inverter (inlet). Verify hose routing, connection size, and molded shape against the original part before installation. Confirm the application uses a 16 mm inside diameter at both ends and the specified centerline length. The Gates 12478 molded heater hose is intended for direct replacement where the original routing matches the factory-molded profile.

Quality Assurance

Gates is known for OE-style fluid transfer components, and the Molded Heater Hose line is built around factory-shaped routing for service in modern compact compartments.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2020KiaNiro EV-L--BATTERY EV (EV/BEV)Inverter (Inlet)Molded Heater Hose
2019KiaNiro EV-L--BATTERY EV (EV/BEV)Inverter (Inlet)Molded Heater Hose
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BBB Industries — 13478Gates — 12478369602B001F10635