Dayco
Curved Radiator Hose

Dayco 72993 Radiator Coolant Hose - Lower

Brand Dayco 72993
Position Lower
Material Epdm
Color Black
End 1 Inside Diameter 1 5/16
End 2 Inside Diameter 1 5/16
Contains Heat Shield N
Contains Protective Sleeve Y
End 1 Outside Diameter 1 23/32
End 2 Outside Diameter 1 23/32
Hose Type Single i.d. hose
SAE Specification Sae j20r4 class d-1, sae j1684 type ec
Trunk Height 20
Product line Curved Radiator Hose
Fits INFINITI · 2 vehicles

Curved hose design. Helps route coolant smoothly with a clean, OE-style fit.

EPDM construction. Built for dependable coolant transfer and heat resistance.

Protective sleeve included. Adds extra abrasion protection where the hose needs it most.

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Dayco 72993 Lower Curved Radiator Hose

Dayco 72993 is a lower curved radiator coolant hose built for the 2014-2015 INFINITI Q50. Made from EPDM rubber with a black finish, it is shaped for coolant routing in the lower radiator circuit and includes a protective sleeve for added abrasion resistance.

The Dayco Curved Radiator Hose line focuses on formed coolant hoses that match vehicle-specific routing needs. For this application, Dayco 72993 provides a curved profile and SAE J20R4 Class D-1 / SAE J1684 Type EC construction standards for a direct-fit lower radiator hose replacement on the INFINITI Q50.

Key Features

  • Fits 2014-2015 INFINITI Q50, lower
  • EPDM rubber construction for coolant system service
  • Curved radiator hose design for lower hose routing
  • 1 5/16 in. inside diameter at both ends
  • 1 23/32 in. outside diameter at both ends
  • Protective sleeve included for added surface protection
  • Black finish for OE-style appearance
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications

Detailed Description

This radiator coolant hose is engineered for the lower cooling-system connection on the 2014-2015 INFINITI Q50. The EPDM material is selected for coolant hose service, while the formed curved shape supports the routing required in the lower radiator position. Dayco 72993 is a practical replacement when the original hose shows age, cracking, swelling, or seepage at the connection points.

Dayco 72993 is listed for the 2014-2015 INFINITI Q50, lower, and the fitment data confirms the application for those model years. If you are searching for a lower radiator hose for INFINITI Q50 2014-2015 or a Dayco 72993 curved radiator hose replacement, this part matches that vehicle-specific need.

What It Helps Address

  • Coolant leaks from a worn lower radiator hose
  • Cracking or hardening from heat and age
  • Swelling or soft spots in the coolant line
  • Improper hose routing in the lower radiator position
  • Surface wear where the hose contacts nearby components

Installation Notes and Tips

Inspect the mating necks, clamps, and surrounding cooling-system components before installation. Confirm the hose routing matches the lower position on the 2014-2015 INFINITI Q50, and verify the hose seats fully on both ends before tightening clamps. Check coolant level and inspect for leaks after the engine reaches operating temperature.

Quality Assurance

Dayco 72993 is built to SAE J20R4 Class D-1 and SAE J1684 Type EC standards for radiator coolant hose service. The protective sleeve adds an extra layer of abrasion resistance in the installed location.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2015INFINITIQ503.7LV6LowerCurved Radiator Hose
2014INFINITIQ503.7LV6LowerCurved Radiator Hose