HomeBelts and Cooling > Hoses and PipesDayco 71916 Radiator Coolant Hose - Lower, Lower - Radiator To Thermostat or Upper Right
Part #: 71916

Dayco 71916 Radiator Coolant Hose - Lower, Lower - Radiator To Thermostat or Upper Right

Curved Radiator Hose, Lower, Upper Right, and Lower - Radiator To Thermostat
22 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$32.79Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Curved Radiator Hose, Lower, Upper Right, and Lower - Radiator To Thermostat
Fitment: BMW, Ford, and Lincoln, 318i, 318is, 318ti, E-100 Econoline, LS, and Z3
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 71916

The Dayco Curved Radiator Hose 71916 is designed to provide reliable coolant flow for select BMW, Ford, and Lincoln vehicles. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and efficient cooling system performance.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Dual inside diameters: 1 7/16 inches and 1 1/2 inches for precise fitment
  • Black color for standard OEM appearance
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 17 inches for proper routing in engine bay
  • Compatible with BMW 318i, 318is, 318ti, Z3 and Ford E-100 Econoline, Lincoln LS models

Detailed Product Description

The Dayco Curved Radiator Hose 71916 is a radiator coolant hose designed to maintain optimal engine temperature by facilitating coolant flow between the radiator and engine. Made from EPDM (ethylene propylene diene monomer), this hose offers excellent resistance to heat, ozone, and coolant chemicals, which helps extend service life. The dual inside diameter design, with one end measuring 1 7/16 inches and the other 1 1/2 inches, allows for a precise and secure connection to different radiator and engine fittings. This hose does not include a heat shield or protective sleeve, focusing on a straightforward, durable design that meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards for coolant hoses.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line is engineered to provide reliable coolant hose solutions with specific bends and diameters to match OEM configurations. This product line focuses on delivering hoses that fit precisely in the engine bay, reducing the risk of kinks or improper coolant flow. The 71916 part number is part of this line, offering a curved design tailored for select BMW, Ford, and Lincoln vehicles requiring dual inside diameter hoses.

Common Applications and Issues Addressed

  • Replacement of worn or cracked radiator coolant hoses in BMW 318i, 318is, 318ti, and Z3 models
  • Restoring proper coolant flow in Ford E-100 Econoline and Lincoln LS cooling systems
  • Preventing coolant leaks caused by hose degradation or improper fit
  • Maintaining engine temperature regulation to avoid overheating
  • Ensuring compatibility with OEM radiator and engine fittings through dual inside diameter design

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 71916, ensure the hose is routed without twists or kinks to maintain proper coolant flow. Verify that the hose ends match the radiator and engine fittings by checking the inside diameters of 1 7/16 inches and 1 1/2 inches. Use appropriate clamps to secure the hose ends firmly, preventing leaks. It is recommended to inspect adjacent cooling system components during installation for any signs of wear or damage.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71916 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for coolant hoses. The EPDM material provides durability against heat and chemical exposure typical in automotive cooling systems. Warranty information is not specified for this part; please refer to Dayco or the vehicle manufacturer for specific warranty details.

BrandDayco
Part Number71916
PositionCurved Radiator Hose, Lower, Upper Right, and Lower - Radiator To Thermostat
MaterialEpdm
ColorBlack
End 1 Inside Diameter1 7/16
End 2 Inside Diameter1 1/2
Contains Heat ShieldN
Contains Protective SleeveN
Hose TypeDual i.d. hose
SAE SpecificationSae j20r4 class d-1, sae j1684 type ec
Trunk Height17

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005LincolnLS3.0LV6Lower - Radiator To Thermostatw/o Oil Cooler; Curved Radiator Hose
2004LincolnLS3.0LV6Lower - Radiator To Thermostatw/o Oil Cooler; Curved Radiator Hose
2003LincolnLS3.0LV6Lower - Radiator To Thermostatw/o Oil Cooler; Curved Radiator Hose
2002LincolnLS3.0LV6Lower - Radiator To Thermostatw/o Oil Cooler; Curved Radiator Hose
2001LincolnLS3.0LV6Lower - Radiator To Thermostatw/o Oil Cooler; Curved Radiator Hose
2000LincolnLS3.0LV6Lower - Radiator To Thermostatw/o Oil Cooler; Curved Radiator Hose
1999BMW318iLowerCurved Radiator Hose
1999BMW318isLowerCurved Radiator Hose
1999BMW318tiLowerCurved Radiator Hose
1998BMW318iLowerCurved Radiator Hose
1998BMW318isLowerCurved Radiator Hose
1998BMW318tiLowerCurved Radiator Hose
1998BMWZ31.9LL4LowerCurved Radiator Hose
1997BMW318iLowerCurved Radiator Hose
1997BMW318isLowerCurved Radiator Hose
1997BMW318tiLowerCurved Radiator Hose
1997BMWZ31.9LL4LowerCurved Radiator Hose
1996BMW318iLowerCurved Radiator Hose
1996BMW318isLowerCurved Radiator Hose
1996BMW318tiLowerCurved Radiator Hose
1996BMWZ3LowerCurved Radiator Hose
1972FordE-100 Econoline4.9LL6Upper RightCurved 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:

20056S22439M

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