Dayco 72436 Radiator Coolant Hose - Lower
OE Quality 60-Day Returns
Dayco
 Curved Radiator Hose

Dayco 72436 Radiator Coolant Hose - Lower

Brand Dayco 72436
Position Lower
Material Epdm
Color Black
End 1 Inside Diameter 1 17/32
End 2 Inside Diameter 1 19/32
Contains Heat Shield N
Contains Protective Sleeve N
End 1 Outside Diameter 1 29/32
End 2 Outside Diameter 2
Hose Type Dual i.d. hose
SAE Specification Sae j20r4 class d-1, sae j1684 type ec
Trunk Height 17
Product line Curved Radiator Hose
Fits BMW · 11 vehicles

EPDM construction. Built for coolant hose service with heat- and fluid-resistant rubber.

Dual I.D. design. Matched end sizing supports the listed cooling system connection points.

SAE-rated hose. Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications.

Cross-references ACDelco 22707M, BMW 11.53.1.741.409 and CARQUEST 23812 for the same application. See all 6.

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Free returns within 60 days if it doesn't fit when fitment is verified.
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Overview

Dayco 72436 is a curved radiator coolant hose built for BMW cooling system service. It uses EPDM construction and a dual I.D. hose design to match the required connection sizes for the application.

Compatible With BMW 540i, BMW 740i, and BMW 740iL lower hose applications, this hose is a fitment-specific replacement for select 1994-1998 models. The Dayco 72436 part number is also useful when cross-checking cooling system service parts for these vehicles.

Key Features

  • EPDM rubber construction for coolant hose service
  • Dual I.D. hose design for matched end sizing
  • Black finish for a clean OE-style appearance
  • Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Curved radiator hose profile for the listed BMW lower hose applications

Detailed Description

Dayco 72436 is a radiator coolant hose for select BMW cooling systems, including 540i, 740i, and 740iL applications. The hose is formed in a curved profile and uses EPDM material, which is commonly specified for coolant transfer service because it handles heat and fluid exposure in engine bay use. The dual I.D. construction supports the different end sizes required by the application, and the hose is identified by the Dayco 72436 part number for ordering and catalog lookup.

This part cross-references ACDelco 22707M and Gates 23812 for the same application. For BMW 540i, BMW 740i, and BMW 740iL cooling system repairs, Dayco 72436 provides a direct replacement format for the lower radiator hose position listed in the fitment data.

What It Is Used For

  • Replacing a cracked or leaking coolant hose
  • Restoring coolant flow in the lower radiator circuit
  • Addressing hose swelling, soft spots, or age-related deterioration
  • Correcting fitment issues caused by an incorrect hose profile
  • Servicing BMW cooling system leaks identified at the hose connection points

Installation Notes

Verify the hose routing, end diameters, and lower position before installation. Compare the removed hose to Dayco 72436 to confirm the curved shape and connection sizes match the vehicle application. Inspect adjoining clamps, necks, and coolant passages for wear or damage before completing the repair.

Quality Assurance

Dayco 72436 is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC standards for coolant hose service.

Related reading

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1998BMW540iLowerCurved Radiator Hose
1998BMW740iLowerCurved Radiator Hose
1998BMW740iLLowerCurved Radiator Hose
1997BMW540iLowerCurved Radiator Hose
1997BMW740iLowerCurved Radiator Hose
1997BMW740iLLowerCurved Radiator Hose
1996BMW740iLLowerCurved Radiator Hose
1995BMW740iLowerCurved Radiator Hose
1995BMW740iLLowerCurved Radiator Hose
1994BMW740iLowerCurved Radiator Hose
1994BMW740iLLowerCurved Radiator Hose
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 22707MBMW — 11.53.1.741.409CARQUEST — 23812Duralast — E72436Gates — 23812NAPA — 16496