HomeBelts and Cooling > Hoses and PipesGates 21873 Radiator Coolant Hose - Lower or Lower - Pipe To Radiator
Part #: 21873

Gates 21873 Radiator Coolant Hose - Lower or Lower - Pipe To Radiator

Molded Coolant Hose, Lower
22 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Molded Coolant Hose, Lower
Fitment: Nissan, Pickup and D21
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Gates Molded Coolant Hose 21873

The Gates Molded Coolant Hose 21873 is designed specifically for Nissan D21 and Pickup models, providing reliable radiator coolant flow. Constructed from durable EPDM material, this molded hose ensures consistent performance under various operating conditions.

  • Material: EPDM for heat and chemical resistance
  • Centerline length: 25.5 inches (648 mm)
  • End 1 and End 2 inside diameter: 1.34 inches (34 mm)
  • Molded design for precise fit and durability
  • No spring reinforcement or quick connect fittings

Detailed Product Description

The Gates Molded Coolant Hose 21873 is engineered to meet the cooling system requirements of Nissan D21 and Pickup vehicles. Made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals, this radiator coolant hose maintains flexibility and strength over time. The molded construction ensures a precise fit with consistent inside diameters of 1.34 inches (34 mm) on both ends, facilitating secure connections to the radiator and engine components. With a centerline length of 25.5 inches (648 mm), this hose is designed to match OEM specifications without the need for modifications.

About the Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on delivering hoses that are pre-formed to exact shapes and dimensions, eliminating the need for bending or shaping during installation. This product line emphasizes durability and fitment accuracy, which helps maintain optimal coolant flow and reduces the risk of leaks or hose failure in Nissan D21 and Pickup cooling systems.

Common Applications and Issues Addressed

  • Replacement of worn or cracked radiator coolant hoses
  • Prevention of coolant leaks due to hose degradation
  • Restoration of proper coolant flow in Nissan D21 and Pickup models
  • Elimination of hose collapse or kinking under pressure
  • Maintaining engine temperature regulation by ensuring hose integrity

Installation Notes and Tips

  • Verify compatibility with Nissan D21 or Pickup before installation
  • Ensure all clamps and fittings are securely tightened to prevent leaks
  • Inspect surrounding components for wear or damage during replacement
  • Drain coolant system prior to hose removal to avoid spills
  • Check hose routing to avoid contact with moving parts or heat sources

Quality Assurance and Warranty

Gates Molded Coolant Hose 21873 is manufactured to meet industry standards for durability and performance. The EPDM material and molded design contribute to long service life under normal operating conditions. While specific warranty details are not provided, Gates products typically adhere to strict quality control processes to ensure reliability in Nissan D21 and Pickup cooling systems.

BrandGates
Part Number21873
PositionMolded Coolant Hose, Lower
0
Yes
Branch Quantity0
Centerline Length25.5
Centerline Length648
Contains SpringNo
End 1 Inside Diameter1.34
End 1 Inside Diameter34
End 2 Inside Diameter1.34
End 2 Inside Diameter34
MaterialEPDM
Modular HoseNo
MoldedYes
Number of Quick Connect Fittings0

This part fits 22 vehicles. Search below:

YearMakeModelDrive TypeLitersCylindersFuel TypePositionNotes
1997NissanPickup2.4LL4GASLower1-Piece Hose; Molded Coolant Hose
1997NissanPickup2.4LL4GASLower - Pipe To Radiator2-Piece Hose; Cut to fit; Molded Coolant Hose
1996NissanPickupRWD2.4LL4GASLower1-Piece Hose; Molded Coolant Hose
1996NissanPickupRWD2.4LL4GASLower - Pipe To Radiator2-Piece Hose; Cut to fit; Molded Coolant Hose
1996NissanPickup4WD2.4LL4GASLower - Pipe To Radiator2-Piece Hose; Cut to fit; Molded Coolant Hose
1995NissanPickup2.4LL4GASLower1-Piece Hose; Molded Coolant Hose
1995NissanPickup2.4LL4GASLower - Pipe To Radiator2-Piece Hose; Cut to fit; Molded Coolant Hose
1994NissanD212.4LL4GASLowerMolded Coolant Hose
1994NissanD212.4LL4GASLower - Pipe To RadiatorRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1994NissanPickup2.4LL4GASLowerMolded Coolant Hose
1994NissanPickup2.4LL4GASLower - Pipe To RadiatorRadiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
1993NissanD212.4LL4GASLower1-Piece Hose; Molded Coolant Hose
1993NissanD212.4LL4GASLower - Pipe To Radiator2-Piece Hose; Cut to fit; Molded Coolant Hose
1993NissanPickup2.4LL4GASLower1-Piece Hose; Molded Coolant Hose
1992NissanD212.4LL4GASLower1-Piece Hose; Molded Coolant Hose
1992NissanD212.4LL4GASLower - Pipe To Radiator2-Piece Hose; Cut to fit; Molded Coolant Hose
1992NissanPickup2.4LL4GASLower1-Piece Hose; Molded Coolant Hose
1991NissanD212.4LL4GASLower1-Piece Hose; Molded Coolant Hose
1991NissanD212.4LL4GASLower - Pipe To Radiator2-Piece Hose; Cut to fit; Molded Coolant Hose
1991NissanPickup2.4LL4GASLower1-Piece Hose; Molded Coolant Hose
1990NissanD212.4LL4GASLower1-Piece Hose; Molded Coolant Hose
1990NissanD212.4LL4GASLower - Pipe To Radiator2-Piece Hose; Cut to fit; Molded 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:

14-2175-0215033B0052150386G012150386G112150586G062150586G1621505S38012187324257L716268563D71626KM-2349

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