HomeBelts and Cooling > Hoses and PipesDayco 71624 Engine Coolant Bypass Hose
Part #: 71624

Dayco 71624 Engine Coolant Bypass Hose

Curved Radiator Hose
60 vehicles fit this part
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Curved Radiator Hose
Fitment: Oldsmobile, Buick, Chevrolet, and Pontiac, Regency, LeSabre, Park Avenue, Regal, Riviera, Lumina APV, 88, 98, Silhouette, Trans Sport, Bonneville, Century, Skylark, Achieva, Cutlass Ciera, Cutlass Cruiser, Grand Am, Toronado, and Reatta
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Overview of Dayco Curved Radiator Hose 71624

The Dayco Curved Radiator Hose 71624 is engineered for reliable engine coolant bypass in select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Designed with durable EPDM material, this black single inside diameter hose ensures consistent performance under typical engine operating conditions.

  • Constructed from EPDM for heat and chemical resistance
  • Black color with 5/8 inch inside diameter on both ends
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Single inside diameter hose type for precise fitment
  • Compatible with multiple Buick, Chevrolet, Oldsmobile, and Pontiac models

Dayco Curved Radiator Hose Product Line Details

The Curved Radiator Hose line by Dayco focuses on providing hoses designed to accommodate specific engine coolant routing needs. This product line emphasizes precise curvature and dimensional accuracy to ensure proper coolant flow and fitment in designated vehicle applications. The 71624 hose is part of this line, offering a tailored solution for engine coolant bypass systems requiring a 5/8 inch inside diameter hose without additional heat shields or protective sleeves.

Product Specifications and Compatibility

This engine coolant bypass hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for long-term use in automotive cooling systems. Both ends of the hose have a 5/8 inch inside diameter, facilitating a secure connection in the cooling circuit. The hose does not include a heat shield or protective sleeve, which is consistent with its intended use in less exposed areas of the engine bay.

The Dayco 71624 hose is compatible with a range of Buick, Chevrolet, Oldsmobile, and Pontiac vehicles, including models such as the Buick LeSabre and Park Avenue, Chevrolet Lumina APV, Oldsmobile Achieva and Cutlass Ciera, and Pontiac Grand Am and Bonneville. This compatibility ensures that the hose meets the specific dimensional and material requirements for these vehicles' cooling systems.

Common Applications and Problem Resolution

  • Replacement of worn or cracked engine coolant bypass hoses
  • Restoration of proper coolant flow in Buick, Chevrolet, Oldsmobile, and Pontiac cooling systems
  • Addressing coolant leaks caused by hose degradation
  • Maintaining engine temperature regulation by ensuring hose integrity
  • Preventing overheating issues related to faulty bypass hoses

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 71624, ensure the hose is routed according to the vehicle manufacturer’s specifications to avoid kinks or undue stress. Verify that the 5/8 inch inside diameter matches the connecting fittings for a secure seal. Use appropriate clamps and inspect adjacent components for wear or damage during installation. Avoid using hoses with heat shields or protective sleeves if not specified, as this hose is designed without these features.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71624 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for coolant hoses. The EPDM material and construction provide durability and resistance to typical engine coolant conditions. Warranty details should be confirmed with the original equipment manufacturer or supplier, as Dayco typically offers coverage against manufacturing defects.

BrandDayco
Part Number71624
PositionCurved Radiator Hose
ColorBlack
End 1 Inside Diameter5/8
End 2 Inside Diameter5/8
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height5

This part fits 60 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1998OldsmobileRegencyN/ACurved Radiator Hose
1997OldsmobileRegencyN/ACurved Radiator Hose
1995BuickLeSabreN/ACurved Radiator Hose
1995BuickPark AvenueN/ACurved Radiator Hose
1995BuickRegal3.8LV6N/ACurved Radiator Hose
1995BuickRivieraN/ACurved Radiator Hose
1995ChevroletLumina APV3.8LV6N/ACurved Radiator Hose
1995Oldsmobile88N/ACurved Radiator Hose
1995Oldsmobile98N/ACurved Radiator Hose
1995OldsmobileSilhouetteN/ACurved Radiator Hose
1995PontiacTrans Sport3.8LV6N/ACurved Radiator Hose
1994BuickLeSabreN/ACurved Radiator Hose
1994BuickPark AvenueN/ACurved Radiator Hose
1994BuickRegal3.8LV6N/ACurved Radiator Hose
1994ChevroletLumina APV3.8LV6N/ACurved Radiator Hose
1994Oldsmobile88N/ACurved Radiator Hose
1994Oldsmobile98N/ACurved Radiator Hose
1994OldsmobileSilhouette3.8LV6N/ACurved Radiator Hose
1994PontiacBonnevilleN/ACurved Radiator Hose
1994PontiacTrans Sport3.8LV6N/ACurved Radiator Hose
1993BuickCentury3.3LV6N/ACurved Radiator Hose
1993BuickLeSabreN/ACurved Radiator Hose
1993BuickPark AvenueN/ACurved Radiator Hose
1993BuickRegal3.8LV6N/ACurved Radiator Hose
1993BuickRivieraN/ACurved Radiator Hose
1993BuickSkylark3.3LV6N/ACurved Radiator Hose
1993ChevroletLumina APV3.8LV6N/ACurved Radiator Hose
1993Oldsmobile88N/ACurved Radiator Hose
1993Oldsmobile98N/ACurved Radiator Hose
1993OldsmobileAchieva3.3LV6N/ACurved Radiator Hose
1993OldsmobileCutlass Ciera3.3LV6N/ACurved Radiator Hose
1993OldsmobileCutlass CruiserN/ACurved Radiator Hose
1993OldsmobileSilhouette3.8LV6N/ACurved Radiator Hose
1993PontiacBonnevilleN/ACurved Radiator Hose
1993PontiacGrand Am3.3LV6N/ACurved Radiator Hose
1993PontiacTrans Sport3.8LV6N/ACurved Radiator Hose
1992BuickCentury3.3LV6N/ACurved Radiator Hose
1992BuickLeSabreN/ACurved Radiator Hose
1992BuickPark AvenueN/ACurved Radiator Hose
1992BuickRegal3.8LV6N/ACurved Radiator Hose
1992BuickRivieraN/ACurved Radiator Hose
1992BuickSkylark3.3LV6N/ACurved Radiator Hose
1992ChevroletLumina APV3.8LV6N/ACurved Radiator Hose
1992Oldsmobile88N/ACurved Radiator Hose
1992Oldsmobile98N/ACurved Radiator Hose
1992OldsmobileAchieva3.3LV6N/ACurved Radiator Hose
1992OldsmobileCutlass Ciera3.3LV6N/ACurved Radiator Hose
1992OldsmobileCutlass Cruiser3.3LV6N/ACurved Radiator Hose
1992OldsmobileSilhouette3.8LV6N/ACurved Radiator Hose
1992OldsmobileToronadoN/ACurved Radiator Hose
1992PontiacBonnevilleN/ACurved Radiator Hose
1992PontiacGrand Am3.3LV6N/ACurved Radiator Hose
1992PontiacTrans Sport3.8LV6N/ACurved Radiator Hose
1991BuickPark AvenueN/ACurved Radiator Hose
1991BuickReattaN/ACurved Radiator Hose
1991BuickRegal3.8LV6N/ACurved Radiator Hose
1991BuickRivieraN/ACurved Radiator Hose
1991Oldsmobile98N/ACurved Radiator Hose
1991OldsmobileToronadoN/ACurved Radiator Hose
1990BuickRegal3.8LV6N/ACurved 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:

14239S

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