HomeBelts and Cooling > Hoses and PipesDayco 71865 Radiator Coolant Hose - Lower
Part #: 71865

Dayco 71865 Radiator Coolant Hose - Lower

Curved Radiator Hose, Lower
⚙️ 8 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
📦Curved Radiator Hose, Lower
🚗Fitment: Dodge, Ram 1500
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dayco Curved Radiator Hose 71865

The Dayco Curved Radiator Hose 71865 is designed specifically for Dodge Ram 1500 models, providing reliable coolant flow and engine temperature regulation. Constructed from durable EPDM material, this radiator coolant hose ensures consistent performance under demanding conditions.

  • Made from high-quality EPDM material for heat and chemical resistance
  • Black color with a curved design for precise fitment
  • Inside diameter of 1 23/32 inches on both ends for uniform coolant flow
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Single inside diameter hose type without heat shield or protective sleeve
  • Trunk height of 25 for proper clearance and installation

Detailed Product Description

The Dayco Curved Radiator Hose 71865 is engineered to meet the cooling system requirements of Dodge Ram 1500 vehicles. Its EPDM construction offers resistance to heat, ozone, and coolant chemicals, which helps maintain hose integrity over time. The hose features a consistent inside diameter of 1 23/32 inches on both ends, ensuring smooth coolant circulation without restrictions. This single inside diameter hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive cooling applications. The absence of a heat shield or protective sleeve simplifies installation while maintaining durability. The hose’s trunk height of 25 provides adequate clearance within the engine bay, supporting proper fitment and function.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose product line focuses on delivering hoses with precise bends and dimensions tailored to specific vehicle applications. This design approach helps ensure optimal coolant flow and fitment in tight engine compartments. The 71865 part exemplifies this line by offering a curved shape that matches the Dodge Ram 1500’s cooling system layout, reducing the need for modifications or adjustments during installation.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Dodge Ram 1500
  • Resolving coolant leaks caused by hose degradation or damage
  • Preventing engine overheating due to compromised coolant flow
  • Addressing hose swelling or softening from heat exposure
  • Ensuring proper coolant circulation with a correctly sized hose

Installation Notes and Tips

  • Verify compatibility with Dodge Ram 1500 before installation
  • Inspect hose ends and clamps for secure fit and sealing
  • Ensure coolant system is cool and depressurized prior to removal
  • Replace clamps if they show signs of wear or corrosion
  • Check for proper routing to avoid kinks or contact with moving parts

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71865 to meet industry standards, including SAE J20R4 Class D-1 and SAE J1684 Type EC. These specifications ensure the hose performs reliably under typical operating conditions. While specific warranty details are not provided, Dayco products generally adhere to strict quality control processes to support durability and fitment accuracy for Dodge Ram 1500 applications.

BrandDayco
Part Number71865
PositionCurved Radiator Hose, Lower
ColorBlack
End 1 Inside Diameter1 23/32
End 2 Inside Diameter1 23/32
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height25

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2001DodgeRam 15003.9LV6LowerCurved Radiator Hose
2000DodgeRam 15003.9LV6LowerCurved Radiator Hose
1999DodgeRam 15003.9LV6LowerCurved Radiator Hose
1998DodgeRam 15003.9LV6LowerCurved Radiator Hose
1997DodgeRam 15003.9LV6LowerCurved Radiator Hose
1996DodgeRam 15003.9LV6LowerCurved Radiator Hose
1995DodgeRam 15003.9LV6LowerCurved Radiator Hose
1994DodgeRam 15003.9LV6LowerCurved Radiator 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:

26269X

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