HomeBelts and Cooling > Hoses and PipesDayco 70324 Radiator Coolant Hose - Lower
Part #: 70324

Dayco 70324 Radiator Coolant Hose - Lower

Curved Radiator Hose, Lower
45 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Curved Radiator Hose, Lower
Fitment: Chevrolet, GMC, Pontiac, and Buick, Caprice, Impala, Bel Air, El Camino, Laguna, Malibu, Sprint, Chevelle, Biscayne, Brookwood, Kingswood, Townsman, Beaumont, Electra, Invicta, and LeSabre
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Overview of Dayco Curved Radiator Hose 70324

The Dayco Curved Radiator Hose 70324 is designed for reliable coolant flow in select Buick and Chevrolet vehicles. Engineered with durable EPDM material, this dual inside diameter hose supports efficient engine cooling for models like the Chevrolet Impala and Buick LeSabre.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Dual inside diameters: 1 5/8 inches and 1 3/4 inches for precise fitment
  • Black color for standard OEM appearance
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 17 inches for proper routing in engine bay
  • Compatible with Buick and Chevrolet models including Bel Air, Caprice, El Camino, Impala, LeSabre, and Malibu

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with specific bends and dual inside diameters to ensure a secure and leak-free connection in cooling systems. This product line is engineered to meet stringent SAE standards, offering reliable performance without additional heat shields or protective sleeves. The 70324 hose exemplifies this approach by combining material durability with precise dimensions tailored for classic Buick and Chevrolet vehicles.

Detailed Product Description

This radiator coolant hose features EPDM construction, known for its resistance to heat, ozone, and coolant chemicals, making it suitable for long-term use in automotive cooling systems. The dual inside diameter design (1 5/8 inches on one end and 1 3/4 inches on the other) allows for a secure fit on varying radiator and engine connections. The hose’s black color matches OEM specifications, maintaining the original engine bay appearance. It does not include a heat shield or protective sleeve, consistent with many factory-installed hoses. The 17-inch trunk height ensures proper routing and clearance within the engine compartment.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Buick and Chevrolet vehicles
  • Resolving coolant leaks caused by hose degradation or improper fit
  • Maintaining optimal engine temperature by ensuring proper coolant flow
  • Preventing overheating issues related to faulty or damaged radiator hoses
  • Restoring OEM fit and function in classic models like the Chevrolet Bel Air and Buick LeSabre

Installation Notes and Tips

  • Verify hose dimensions and fitment with your vehicle’s specifications before installation
  • Ensure all clamps and connections are secure to prevent leaks
  • Inspect surrounding components for wear or damage during replacement
  • Drain coolant system safely before removing the old hose
  • Check for proper routing to avoid kinks or contact with moving parts

Quality Assurance and Warranty

The Dayco Curved Radiator Hose 70324 is manufactured to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for coolant hoses. While specific warranty details are not provided, Dayco products typically undergo rigorous quality control to support reliable performance in automotive cooling systems.

BrandDayco
Part Number70324
PositionCurved Radiator Hose, Lower
ColorBlack
End 1 Inside Diameter1 5/8
End 2 Inside Diameter1 3/4
Hose TypeDual I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height17

This part fits 45 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1976ChevroletCaprice7.4LV8LowerCurved Radiator Hose
1976ChevroletImpala7.4LV8LowerCurved Radiator Hose
1975ChevroletBel Air7.4LV8LowerCurved Radiator Hose
1975ChevroletCaprice7.4LV8LowerCurved Radiator Hose
1975ChevroletEl Camino7.4LV8LowerCurved Radiator Hose
1975ChevroletImpala7.4LV8LowerCurved Radiator Hose
1975ChevroletMalibu7.4LV8LowerCurved Radiator Hose
1974ChevroletBel Air7.4LV8LowerCurved Radiator Hose
1974ChevroletCaprice7.4LV8LowerCurved Radiator Hose
1974ChevroletEl Camino7.4LV8LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1974ChevroletEl Camino7.4LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1974ChevroletImpala7.4LV8LowerCurved Radiator Hose
1974ChevroletMalibu7.4LV8LowerCurved Radiator Hose
1973ChevroletBel Air7.4LV8LowerCurved Radiator Hose
1973ChevroletCaprice7.4LV8LowerCurved Radiator Hose
1973ChevroletEl Camino7.4LV8LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1973ChevroletEl Camino7.4LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1973ChevroletImpala7.4LV8LowerCurved Radiator Hose
1973ChevroletMalibu7.4LV8LowerCurved Radiator Hose
1972ChevroletBel Air7.4LV8LowerCurved Radiator Hose
1972ChevroletBel Air6.6LV8LowerCurved Radiator Hose
1972ChevroletCaprice7.4LV8LowerCurved Radiator Hose
1972ChevroletCaprice6.6LV8LowerCurved Radiator Hose
1972ChevroletEl Camino7.4LV8LowerCurved Radiator Hose
1972ChevroletEl Camino6.6LV8LowerCurved Radiator Hose
1972ChevroletImpala7.4LV8LowerCurved Radiator Hose
1971ChevroletBel Air6.6LV8Lower300 HP; Curved Radiator Hose
1971ChevroletBel Air7.4LV8LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1971ChevroletCaprice6.6LV8Lower300 HP; Curved Radiator Hose
1971ChevroletCaprice7.4LV8LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1971ChevroletEl Camino7.4LV8LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1971ChevroletEl Camino7.4LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1971ChevroletEl Camino6.6LV8LowerCurved Radiator Hose
1971ChevroletImpala6.6LV8Lower300 HP; Curved Radiator Hose
1971ChevroletImpala7.4LV8LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1970ChevroletEl Camino6.6LV8LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1970ChevroletEl Camino6.6LV8Lowerw/o A.C., w/H.D. Rad., or 4.10 Rear Axle; Curved Radiator Hose
1970ChevroletEl Camino6.6LV8Lowerw/o A.C., w/o H.D. Rad. or 4.10 Rear Axle; Curved Radiator Hose
1970ChevroletEl Camino6.5LV8LowerCurved Radiator Hose
1970ChevroletEl Camino7.4LV8LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1970ChevroletEl Camino7.4LV8Lowerw/o A.C., w/H.D. Rad., or 4.10 Rear Axle; Curved Radiator Hose
1970ChevroletEl Camino7.4LV8Lowerw/o A.C., w/o H.D. Rad. or 4.10 Rear Axle; Curved Radiator Hose
1969ChevroletEl Camino6.5LV8LowerCurved Radiator Hose
1961BuickLeSabre6.0LV8LowerCurved Radiator Hose
1961BuickLeSabre6.6LV8LowerCurved 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:

24013L

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