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Dayco 70324 Radiator Coolant Hose - Lower
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.
| Brand | Dayco |
|---|---|
| Part Number | 70324 |
| Position | Curved Radiator Hose, Lower |
| Color | Black |
| End 1 Inside Diameter | 1 5/8 |
| End 2 Inside Diameter | 1 3/4 |
| Hose Type | Dual I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 17 |
This part fits 45 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1976 | Chevrolet | Caprice | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1976 | Chevrolet | Impala | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1975 | Chevrolet | Bel Air | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1975 | Chevrolet | Caprice | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1975 | Chevrolet | El Camino | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1975 | Chevrolet | Impala | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1975 | Chevrolet | Malibu | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1974 | Chevrolet | Bel Air | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1974 | Chevrolet | Caprice | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1974 | Chevrolet | El Camino | 7.4L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1974 | Chevrolet | El Camino | 7.4L | V8 | Lower | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1974 | Chevrolet | Impala | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1974 | Chevrolet | Malibu | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1973 | Chevrolet | Bel Air | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1973 | Chevrolet | Caprice | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1973 | Chevrolet | El Camino | 7.4L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1973 | Chevrolet | El Camino | 7.4L | V8 | Lower | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1973 | Chevrolet | Impala | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1973 | Chevrolet | Malibu | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1972 | Chevrolet | Bel Air | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1972 | Chevrolet | Bel Air | 6.6L | V8 | Lower | Curved Radiator Hose |
| 1972 | Chevrolet | Caprice | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1972 | Chevrolet | Caprice | 6.6L | V8 | Lower | Curved Radiator Hose |
| 1972 | Chevrolet | El Camino | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1972 | Chevrolet | El Camino | 6.6L | V8 | Lower | Curved Radiator Hose |
| 1972 | Chevrolet | Impala | 7.4L | V8 | Lower | Curved Radiator Hose |
| 1971 | Chevrolet | Bel Air | 6.6L | V8 | Lower | 300 HP; Curved Radiator Hose |
| 1971 | Chevrolet | Bel Air | 7.4L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1971 | Chevrolet | Caprice | 6.6L | V8 | Lower | 300 HP; Curved Radiator Hose |
| 1971 | Chevrolet | Caprice | 7.4L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1971 | Chevrolet | El Camino | 7.4L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1971 | Chevrolet | El Camino | 7.4L | V8 | Lower | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1971 | Chevrolet | El Camino | 6.6L | V8 | Lower | Curved Radiator Hose |
| 1971 | Chevrolet | Impala | 6.6L | V8 | Lower | 300 HP; Curved Radiator Hose |
| 1971 | Chevrolet | Impala | 7.4L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1970 | Chevrolet | El Camino | 6.6L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1970 | Chevrolet | El Camino | 6.6L | V8 | Lower | w/o A.C., w/H.D. Rad., or 4.10 Rear Axle; Curved Radiator Hose |
| 1970 | Chevrolet | El Camino | 6.6L | V8 | Lower | w/o A.C., w/o H.D. Rad. or 4.10 Rear Axle; Curved Radiator Hose |
| 1970 | Chevrolet | El Camino | 6.5L | V8 | Lower | Curved Radiator Hose |
| 1970 | Chevrolet | El Camino | 7.4L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1970 | Chevrolet | El Camino | 7.4L | V8 | Lower | w/o A.C., w/H.D. Rad., or 4.10 Rear Axle; Curved Radiator Hose |
| 1970 | Chevrolet | El Camino | 7.4L | V8 | Lower | w/o A.C., w/o H.D. Rad. or 4.10 Rear Axle; Curved Radiator Hose |
| 1969 | Chevrolet | El Camino | 6.5L | V8 | Lower | Curved Radiator Hose |
| 1961 | Buick | LeSabre | 6.0L | V8 | Lower | Curved Radiator Hose |
| 1961 | Buick | LeSabre | 6.6L | V8 | Lower | 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.