Keep engine coolant flowing along its intended bypass path with this Dorman heater hose assembly, part number 626-554, an engine coolant bypass pipe built as a direct-fit replacement. It fits many vehicles, among them the 2005-2021 Toyota Tacoma, 2010 Toyota 4Runner and 2012-2017 Toyota Hilux. See the Buyer's Guide tab for engine details and the full list.
Dorman catalogs this part as an engine coolant bypass pipe, and it is also listed as an hvac heater hose assembly. It was engineered for reliable performance and durability.
- Direct replacement: Designed to fit and work like the original pipe on the listed applications.
- Replaces a failed original: Intended for use when the factory pipe has failed from heat, vibration or corrosion.
- Durable construction: Made from quality materials for dependable performance.
- Trustworthy quality: Supported by Dorman's team of product experts in the United States and more than a century of automotive experience.
Signs this part may need replacing include coolant seeping from the pipe or its connections, a coolant level that keeps dropping, or visible corrosion on the pipe. If a leaking or corroded bypass pipe is the cause, this Dorman heater hose is designed to take its place. Diagnose the cooling system first, since other components can cause the same symptoms.
Interchange: KGTE-1634
SK121409 · 1626875091 · 1626875110 · 1626875130 · 1626875131 · KGTE1634
This part cross-references / interchanges with the following part numbers:
KGTE-1634, SK121409, 1626875091, 1626875110, 1626875130, 1626875131
