HomeBelts and Cooling > Hoses and PipesDayco 71873 Radiator Coolant Hose - Lower
Part #: 71873

Dayco 71873 Radiator Coolant Hose - Lower

Curved Radiator Hose, Lower
16 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
Curved Radiator Hose, Lower
Fitment: Ford, F-150, F-250, F-350, and Bronco
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 71873

The Dayco Curved Radiator Hose 71873 is designed specifically for Ford Bronco, F-150, F-250, and F-350 models. This radiator coolant hose ensures reliable coolant flow with its durable EPDM material and precise fitment, maintaining optimal engine temperature under various driving conditions.

  • Constructed from durable EPDM material for heat and chemical resistance
  • Black color with a curved design for proper routing
  • Both ends have a 1 3/4 inch inside diameter for consistent fit
  • Single inside diameter hose type for straightforward installation
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 13 1/2 inches for accurate positioning in engine bay

Detailed Product Description

The Dayco Curved Radiator Hose 71873 is engineered to meet the cooling system demands of Ford trucks and SUVs, including the Bronco, F-150, F-250, and F-350. Made from EPDM (ethylene propylene diene monomer) rubber, this hose offers excellent resistance to heat, ozone, and coolant chemicals, ensuring long service life. The hose features a consistent 1 3/4 inch inside diameter on both ends, facilitating a secure connection to radiator and engine fittings. Its curved design allows for proper routing within the engine compartment, reducing stress and potential kinks. This hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant systems.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with specific bends and dimensions to fit OEM routing requirements. This product line is designed to replace factory hoses that require precise curvature for proper coolant flow and fitment. The 71873 part number is part of this line, offering a tailored solution for Ford vehicles that demand exact hose geometry to maintain cooling system integrity.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Ford Bronco and F-Series trucks
  • Resolving coolant leaks caused by hose degradation or damage
  • Preventing overheating issues due to compromised coolant flow
  • Maintaining proper coolant system pressure and routing
  • Addressing fitment issues with aftermarket or incorrect hoses

Installation Notes and Tips

Ensure the engine is cool before removing the old radiator hose to avoid burns. Inspect hose clamps and replace if necessary to secure the new hose properly. Verify that the 1 3/4 inch inside diameter matches the radiator and engine fittings for a leak-free connection. The curved design should align with the original hose routing to prevent kinks or stress points. After installation, refill the cooling system and check for leaks during engine warm-up.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71873 to meet industry SAE specifications, ensuring reliable performance in demanding automotive environments. The EPDM material and construction standards provide durability against heat and chemical exposure. While specific warranty details are not provided, Dayco products typically adhere to manufacturer quality controls and standards for automotive replacement parts.

BrandDayco
Part Number71873
PositionCurved Radiator Hose, Lower
ColorBlack
End 1 Inside Diameter1 3/4
End 2 Inside Diameter1 3/4
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height13 1/2

This part fits 16 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1996FordF-1504.9LL6LowerCurved Radiator Hose
1996FordF-2504.9LL6LowerCurved Radiator Hose
1996FordF-3504.9LL6LowerCurved Radiator Hose
1995FordF-1504.9LL6LowerCurved Radiator Hose
1995FordF-2504.9LL6LowerCurved Radiator Hose
1995FordF-3504.9LL6LowerCurved Radiator Hose
1994FordF-1504.9LL6LowerCurved Radiator Hose
1994FordF-2504.9LL6LowerCurved Radiator Hose
1994FordF-3504.9LL6LowerCurved Radiator Hose
1993FordF-1504.9LL6LowerCurved Radiator Hose
1993FordF-2504.9LL6LowerCurved Radiator Hose
1993FordF-3504.9LL6LowerCurved Radiator Hose
1992FordBronco4.9LL6LowerCurved Radiator Hose
1992FordF-1504.9LL6LowerCurved Radiator Hose
1992FordF-2504.9LL6LowerCurved Radiator Hose
1992FordF-3504.9LL6LowerCurved 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:

B71873

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