HomeBelts and Cooling > Hoses and PipesDayco 72612 Radiator Coolant Hose - Lower
Part #: 72612

Dayco 72612 Radiator Coolant Hose - Lower

Curved Radiator Hose, Lower
⚙️ 5 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Curved Radiator Hose, Lower
🚗Fitment: Hummer, H2
🔄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 72612

The Dayco Curved Radiator Hose 72612 is designed specifically for the Hummer H2, providing reliable coolant flow and engine temperature regulation. Made from durable EPDM material, this black radiator coolant hose ensures consistent performance under demanding conditions.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Black color with a curved design for precise fitment
  • End 1 and End 2 inside diameter: 1 9/16 inches
  • End 1 and End 2 outside diameter: 1 23/32 inches
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Single inside diameter hose type for uniform coolant flow
  • Compatible with Hummer H2 cooling systems

Detailed Product Description

The Dayco Curved Radiator Hose 72612 is engineered to meet the specific cooling system requirements of the Hummer H2. Its EPDM construction offers excellent resistance to heat, ozone, and coolant chemicals, ensuring durability and longevity. The hose features a curved design that facilitates proper routing within the engine bay, minimizing stress and potential leaks. Both ends have an inside diameter of 1 9/16 inches and an outside diameter of 1 23/32 inches, providing a secure and precise fit. This hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant applications.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses with specific bends and dimensions to match OEM specifications for various vehicle models. This product line ensures that hoses fit accurately without the need for modifications, maintaining the integrity of the cooling system. The 72612 part is part of this line, designed to provide a direct replacement for the Hummer H2 radiator coolant hose, supporting efficient coolant circulation and engine temperature control.

Common Applications and Issues Addressed

  • Replacement of worn or cracked radiator coolant hoses in Hummer H2 vehicles
  • Prevention of coolant leaks caused by hose degradation
  • Restoration of proper coolant flow to avoid engine overheating
  • Elimination of hose collapse or swelling under pressure
  • Ensuring compatibility with factory cooling system specifications

Installation Notes and Tips

  • Verify hose dimensions and fitment with your Hummer H2 before installation
  • Inspect hose clamps and replace if necessary to ensure a secure seal
  • Drain coolant system prior to hose removal to prevent spills
  • Ensure proper routing of the curved hose to avoid kinks or interference
  • After installation, refill and bleed the cooling system to remove air pockets

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72612 to meet stringent SAE specifications, ensuring reliable performance in automotive cooling systems. The EPDM material and construction standards provide resistance to heat and chemical exposure typical in engine environments. While specific warranty details are not provided, Dayco products generally adhere to industry quality standards for durability and fitment.

BrandDayco
Part Number72612
PositionCurved Radiator Hose, Lower
ColorBlack
End 1 Inside Diameter1 9/16
End 1 Outside Diameter1 23/32
End 2 Inside Diameter1 9/16
End 2 Outside Diameter1 23/32
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height15

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2007HummerH2LowerCurved Radiator Hose
2006HummerH2LowerCurved Radiator Hose
2005HummerH2LowerCurved Radiator Hose
2004HummerH2LowerCurved Radiator Hose
2003HummerH2LowerCurved 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:

22463M

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