HomeBelts and Cooling > Hoses and PipesGates 21780 Radiator Coolant Hose - Lower - Engine To Pipe
Part #: 21780

Gates 21780 Radiator Coolant Hose - Lower - Engine To Pipe

Molded Coolant Hose, Lower - Engine To Pipe
⚙️ 2 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Coolant Hose, Lower - Engine To Pipe
🚗Fitment: Nissan, 240SX
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Gates Molded Coolant Hose 21780

The Gates Molded Coolant Hose 21780 is designed specifically for Nissan 240SX vehicles, providing reliable radiator coolant flow. Constructed from durable EPDM and plastic materials, this molded radiator coolant hose ensures consistent performance under typical engine cooling conditions.

  • Made from EPDM and plastic for heat and chemical resistance
  • Molded design for precise fit and durability
  • Centerline length of 559 mm (22 inches) for exact routing
  • Inside diameter of 34 mm (1.34 inches) on both ends
  • Compatible with Nissan 240SX radiator coolant systems

Detailed Product Description

This radiator coolant hose, part number 21780, is part of the Gates Molded Coolant Hose product line, known for its molded construction that matches original equipment specifications. The molded design eliminates the need for multiple hose segments, reducing potential leak points and improving coolant system reliability. The EPDM rubber and plastic materials provide resistance to heat, ozone, and coolant chemicals, ensuring long service life in the demanding environment of the Nissan 240SX engine bay.

Applications and Problem Solving

  • Replaces worn or cracked radiator coolant hoses in Nissan 240SX models
  • Prevents coolant leaks that can cause engine overheating
  • Restores proper coolant flow for efficient engine temperature regulation
  • Eliminates hose collapse or swelling under pressure
  • Ensures secure fit with molded ends matching OEM dimensions

Installation Notes and Tips

When installing the Gates Molded Coolant Hose 21780, ensure the engine is cool to avoid burns from hot coolant. Verify the hose routing matches the original to prevent kinks or interference with other engine components. Use appropriate clamps to secure the hose ends, noting that this hose does not contain springs or quick connect fittings. Inspect adjacent hoses and clamps for wear during replacement.

Quality Assurance and Warranty

Gates Molded Coolant Hose 21780 is manufactured to meet or exceed OEM standards for fit, form, and function. The EPDM and plastic construction is tested for durability against heat and chemical exposure typical in automotive cooling systems. While specific warranty details are not provided, Gates products generally come with a limited warranty against defects in material and workmanship.

BrandGates
Part Number21780
PositionMolded Coolant Hose, Lower - Engine To Pipe
MaterialEpdm, plastic
End 1 Inside Diameter1.34
End 1 Inside Diameter34
End 2 Inside Diameter1.34
End 2 Inside Diameter34
Contains SpringNo
Centerline Length22
Centerline Length559
Branch Quantity0
9839Yes
98450
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 2 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1990Nissan240SX2.4LL4GASLower - Engine To PipeMolded Coolant Hose
1989Nissan240SX2.4LL4GASLower - Engine To PipeMolded Coolant Hose

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

14-2584-62150340F652178024233L714458470C71445KM-3183MH-4780

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.