HomeBelts and Cooling > Hoses and PipesDayco 72427 Radiator Coolant Hose - Upper
Part #: 72427

Dayco 72427 Radiator Coolant Hose - Upper

Curved Radiator Hose, Upper
6 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, Upper
Fitment: BMW, X5
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 72427

The Dayco Curved Radiator Hose 72427 is designed specifically for BMW X5 models, providing reliable coolant flow and engine temperature regulation. Constructed from durable EPDM material, this radiator coolant hose ensures consistent performance under demanding conditions.

  • Material: EPDM for heat and chemical resistance
  • Color: Black
  • End 1 Inside Diameter: 1 1/2 inches
  • End 2 Inside Diameter: 1 1/2 inches
  • Hose Type: Single inside diameter hose
  • SAE Specifications: SAE J20R4 Class D-1, SAE J1684 Type EC compliant
  • Trunk Height: 11 1/4 inches
  • Compatible with BMW X5 models

Dayco Curved Radiator Hose Product Line Details

The Curved Radiator Hose line by Dayco focuses on precision-engineered hoses that accommodate specific vehicle cooling system layouts. This product line emphasizes exact fitment and material quality, ensuring that hoses like the 72427 maintain proper coolant flow and system integrity without the need for additional heat shields or protective sleeves.

Detailed Product Description

The Dayco 72427 radiator coolant hose is manufactured from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1 1/2 inches, making it a single i.d. hose designed to fit securely within the BMW X5 cooling system. The hose’s curved design and 11 1/4 inch trunk height allow it to fit precisely in the engine bay, reducing stress and potential leaks. Compliance with SAE J20R4 Class D-1 and SAE J1684 Type EC standards ensures the hose meets industry requirements for durability and performance.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in BMW X5 vehicles
  • Prevention of coolant leaks that can cause engine overheating
  • Restoration of proper coolant flow to maintain engine temperature regulation
  • Addressing hose swelling or softening due to heat exposure
  • Eliminating coolant contamination from degraded hose materials

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 72427, ensure the engine is cool to avoid burns. Verify that the hose diameter matches the radiator and engine fittings exactly to prevent leaks. Use appropriate clamps and tighten securely without over-torquing to avoid hose damage. Inspect adjacent components for wear or damage during installation to maintain overall cooling system integrity.

Quality Assurance and Warranty

Dayco manufactures the 72427 radiator coolant hose to meet strict SAE specifications, ensuring consistent quality and performance. While specific warranty details are not provided, Dayco products typically adhere to industry standards for durability and reliability, supporting long-term use in BMW X5 cooling systems.

BrandDayco
Part Number72427
PositionCurved Radiator Hose, Upper
ColorBlack
End 1 Inside Diameter1 1/2
End 2 Inside Diameter1 1/2
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height11 1/4

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006BMWX53.0LL6UpperFitment note: without Quick Connect; Curved Radiator Hose
2005BMWX53.0LL6UpperFitment note: without Quick Connect; Curved Radiator Hose
2004BMWX53.0LL6UpperFitment note: without Quick Connect; Curved Radiator Hose
2003BMWX53.0LL6UpperFitment note: without Quick Connect; Curved Radiator Hose
2002BMWX53.0LL6UpperFitment note: without Quick Connect; Curved Radiator Hose
2001BMWX53.0LL6UpperFitment note: without Quick Connect; Curved 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:

11.53.7.500.733

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