Dayco 70805 Radiator Coolant Hose - Lower

Dayco 70805 Curved Radiator Hose

The Dayco 70805 curved radiator hose is a lower coolant hose built for select classic GM and Lincoln applications. Made from EPDM rubber and formed as a dual I.D. hose, it provides the curved routing needed for vehicles with specific lower radiator connections.

Key Features

• EPDM construction for coolant-system service
• Black finish for a factory-style appearance
• Dual I.D. hose with 1 1/2 in. end 1 inside diameter and 1 5/8 in. end 2 inside diameter
• Lower radiator hose position
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Dayco Curved Radiator Hose line for shaped coolant routing

Product Details

Dayco’s Curved Radiator Hose line focuses on formed hose routing for applications that require a specific bend and dual inside diameters. This Dayco 70805 radiator coolant hose is a lower hose used on select 1975-1979 vehicles, including Chevrolet Camaro, Chevrolet El Camino, Chevrolet Malibu, Oldsmobile Cutlass, Oldsmobile Cutlass Supreme, Pontiac Firebird, Pontiac Grand LeMans, Pontiac LeMans, and Lincoln Continental. It also cross-references ACDelco 24079L for the same application.

Use this hose when servicing lower radiator connections on 1975-1979 Chevrolet Camaro, 1975-1976 Chevrolet El Camino, 1975-1976 Chevrolet Malibu, 1975-1976 Oldsmobile Cutlass, 1975-1976 Oldsmobile Cutlass Supreme, 1975-1976 Pontiac Grand LeMans, 1975-1976 Pontiac LeMans, 1975 Pontiac Firebird, and 1977-1979 Lincoln Continental applications listed below.

Fitment

• Fits 1978-1979 Lincoln Continental, lower.
• Fits 1977 Lincoln Continental, lower. Compatible with vehicles containing air conditioning.
• Fits 1976 Chevrolet Camaro, lower. Compatible with vehicles containing air conditioning.
• Fits 1975-1976 Chevrolet El Camino, lower. Compatible with vehicles containing air conditioning.
• Fits 1975-1976 Chevrolet Malibu, lower. Compatible with vehicles containing air conditioning.
• Fits 1976 Oldsmobile Cutlass, lower. Compatible with vehicles containing air conditioning.
• Fits 1976 Oldsmobile Cutlass, lower. Fits vehicles without air conditioning.
• Fits 1976 Oldsmobile Cutlass Supreme, lower. Compatible with vehicles containing air conditioning.
• Fits 1976 Oldsmobile Cutlass Supreme, lower. Fits vehicles without air conditioning.
• Fits 1976 Pontiac Grand LeMans, lower.
• Fits 1976 Pontiac LeMans, lower.
• Fits 1975 Oldsmobile Cutlass, lower.
• Fits 1975 Oldsmobile Cutlass Supreme, lower.
• Fits 1975 Pontiac Firebird, lower. Compatible with vehicles containing air conditioning.
• Fits 1975 Pontiac Grand LeMans, lower. Compatible with vehicles containing air conditioning.
• Fits 1975 Pontiac Grand LeMans, lower. Fits vehicles without air conditioning.
• Fits 1975 Pontiac LeMans, lower. Compatible with vehicles containing air conditioning.
• Fits 1975 Pontiac LeMans, lower. Fits vehicles without air conditioning.

What It Helps Address

• Lower radiator hose replacement after cracking, hardening, or swelling
• Coolant leaks at the lower hose connection
• Incorrect hose routing on curved lower radiator runs
• Service needs on classic Chevrolet, Oldsmobile, Pontiac, and Lincoln cooling systems
• Fitment matching for vehicles with and without air conditioning where listed

Installation Notes and Tips

Verify end diameters, routing shape, and vehicle configuration before installation. Confirm whether the application is equipped with air conditioning where noted in the fitment list. Inspect hose clamps, radiator necks, and engine-side fittings for wear or corrosion before installing the Dayco 70805.

Quality Assurance

This hose is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC requirements for radiator hose applications. Dayco 70805 is built as a formed EPDM coolant hose for the listed vehicles and lower-position routing.