Details

• Brand:

  

• SKU:

  21744-EA000

• Positions: Outer
• Other Names:

  Return Hose, Reservoir Hose, Hose-Reserve Tank

• Description:

  Description:

  Genuine OEM Nissan Engine Coolant Reservoir Tank Hose — Part # 21744-EA000

  Replace your cracked, brittle, or leaking coolant reservoir hose with the factory-correct unit for the Nissan Frontier, Pathfinder, and Xterra. This genuine OEM hose connects the coolant reservoir (overflow tank) to the radiator, allowing the cooling system to properly recover coolant as the engine cools. Exact factory fit — correct length, correct diameter, correct material.

  Part Details:

  • Part Number: 21744-EA000
  • Other Names: Hose-Reserve Tank, Hose Reservoir Tank, Engine Coolant Reservoir Hose, Return Hose, Overflow Hose, Radiator Overflow Hose
  • Condition: New, Genuine OEM Nissan
  • Position: Outer (#1)
  • Applications: 2.5L QR25DE, 3.8L VQ38DD, 4.0L VQ40DE engines
  • Note: Also included with reservoir assembly — sold here as standalone replacement

  Compatible Vehicles:

  • 2005–2021 Nissan Frontier (2.5L and 4.0L)
  • 2005–2012 Nissan Pathfinder (4.0L)
  • 2005–2015 Nissan Xterra (4.0L)

  Always confirm fitment using your VIN before purchasing.

  Why buy OEM? Aftermarket coolant overflow hoses are frequently undersized in wall thickness or made from rubber compounds that harden and crack prematurely under the constant heat cycling of a truck engine. The genuine Nissan hose is molded to exact factory specifications for a secure, leak-free fit at both ends.

  Symptoms this part fixes:

  • Coolant dripping or pooling under the vehicle near the front
  • Coolant reservoir running low with no visible radiator leak
  • Visible cracking, hardening, or soft spots on the existing hose
  • Coolant smell from the engine bay
  • Overflow hose collapsed, kinked, or disconnected from the reservoir or radiator neck

  Ships fast from Walser Nissan Wayzata — an authorized Nissan dealership. Message us your VIN and we'll confirm fitment before you buy.

• Condition: New
• Notes: Included with Reservoir assembly.

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