Dayco 70649 lower radiator coolant hose for the 1978-1981 Chevrolet Malibu V8 5.0L or 5.7L, the 1979-1981 Malibu V8 4.4L and other vehicles carries coolant between the radiator and the engine.
- Dual I.D. hose with 1.50 in and 1.75 in diameters
- EPDM hose material
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC
- Trunk height of 16 1/2 in
Quick facts
- Part: Dayco 70649 lower radiator coolant hose
- Fits: the 1978-1981 Chevrolet Malibu V8 5.0L or 5.7L, the 1979-1981 Malibu V8 4.4L and other vehicles
- Position: Lower
- Material: EPDM
- Condition: New
Coolant weeping at the ends, a bulging hose or cracked rubber can mean a lower hose is wearing out. A loose clamp or a fault elsewhere in the cooling system can also bring those symptoms, so look over the hose and clamps with the engine off and cold before you buy. If the hose is the cause, this Dayco radiator coolant hose replaces it.
Fits
The 1978-1981 Chevrolet Malibu V8 5.0L or 5.7L, the 1979-1981 Malibu V8 4.4L, the 1970-1981 Chevrolet Camaro V8 5.7L and the 1999-2000 Chevrolet K2500 V8 7.4L are among the vehicles this hose fits. Driving something else? Look up your year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Lower
- Quantity per vehicle: 1
- Diameters: 1.50 in (1 1/2 in) and 1.75 in (1 3/4 in)
- Trunk height: 16 1/2 in (16.50 in)
Build and materials
- Hose type: Dual I.D. hose
- Material: EPDM
- SAE specification: SAE J20R4 Class D-1, SAE J1684 Type EC
- Condition: New
In the box
One lower radiator coolant hose; the vehicle takes one. A protective sleeve and a heat shield are not included.
Interchange: 24034L · RH166 · MC35 · C0687 · MH294 · 20687 · C0854 · CH80 · 60991 · 036 · 064 · 60886 · 5132 · KM1065 · KM878 · 7460 · MR191 · RH41N · MC48
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
24034L, RH166, MC35, C0687, MH294, 20687, C0854, CH80, 60991, 036, 064, 60886, 5132, KM1065, KM878, 7460, MR191, RH41N, MC48, 3231929, 3733157, 10001775, 15005693, 15072792, 328988, 345348, 360647, 3970122, 410669, 415451, 467417, 497533, 551137, BH1672, 77-8415-0
Frequently Asked Questions
Is the Dayco 70649 right for the 1978-1981 Chevrolet Malibu V8 5.0L or 5.7L?
Yes. Dayco 70649 fits the 1978-1981 Chevrolet Malibu V8 5.0L or 5.7L and the 1979-1981 Malibu V8 4.4L. For other cars, look up your year and engine in the "Vehicles it fits" section.
What does dual I.D. mean on this Dayco coolant hose?
Dual I.D. means the hose has two inner diameters. Dayco 70649 is listed with 1.50 in and 1.75 in diameters and a trunk height of 16 1/2 in.
Does the lower radiator coolant hose come with a protective sleeve or heat shield?
No. This listing is one lower radiator coolant hose, and a protective sleeve and a heat shield are not included.
How do I check a lower radiator coolant hose that may be failing?
With the engine off and cold, look for cracks and coolant stains, and squeeze the hose for soft spots. Never open the radiator cap on a warm engine; a shop can pressure-test the system.
Can Dayco 70649 be used in place of number KM1065?
Yes. KM1065 is one of the numbers on the Interchange line that Dayco 70649 replaces, along with RH166, MC35 and others.
