Dayco Radiator Coolant Hose P/N:72404
Dayco 70155 radiator coolant hose for the 1957 Chevrolet Sedan Delivery V8 4.3L, 4.6L or 5.3L and other vehicles carries coolant between the engine and the radiator. It is listed in the upper and lower positions.
A coolant leak, a soft or bulging hose, or a rising temperature gauge can mean the hose is wearing out. These signs alone do not prove the hose is the problem, since a loose clamp can leak the same way.
As a radiator coolant hose, it also fits the 1955-1957 Chevrolet Bel Air V8 4.3L and the 1957 Bel Air V8 4.6L, and the 1955-1957 Chevrolet One-Fifty Series V8 4.3L and the 1957 One-Fifty Series V8 4.6L. The 1957 Chevrolet Sedan Delivery V8 4.3L, 4.6L or 5.3L takes one hose. If your year, model or engine is not named here, look your car up in the "Vehicles it fits" section.
Fit and size
Build and materials
Interchange: 20008S · 20242 · 60197 · KM161 · 7042 · H114 · MR550 · CH16
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This part cross-references / interchanges with the following part numbers:
Will Dayco 70155 work on a 1957 Chevrolet Sedan Delivery V8 5.3L?
Yes. Dayco 70155 is listed for the 1957 Chevrolet Sedan Delivery with the V8 4.3L, 4.6L or 5.3L engine, and each takes one hose.
Is the Dayco radiator coolant hose made of EPDM?
Yes. This hose is EPDM, a single I.D. hose that comes without a protective sleeve or heat shield.
Which SAE specifications does this Dayco coolant hose meet?
It meets SAE J20R4 Class D-1 and SAE J1684 Type EC.
How do I spot a worn upper or lower coolant hose before it leaks?
With the engine off and cool, look for cracks, bulges or wet spots along the hose. In normal driving, watch for a coolant smell or a temperature gauge that climbs. A shop can pressure-test the system.
Does Dayco 70155 cross to number 20008S?
Yes. 20008S is on the interchange line for Dayco 70155, along with 20242, 60197 and several other numbers.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.