Gates 20504 upper radiator coolant hose for the 1970 Dodge Charger V8 5.2L and other vehicles and equipment carries engine coolant through a pre-shaped molded EPDM tube. This Gates molded coolant hose is part of a molded line made for upper, lower, bypass, heater and other coolant routes.
- Specifically-engineered materials resist collapse under vacuum
- Engineered to resist electrochemical degradation, the leading cause of hose failure
- Pre-shaped to seal at its connections
- EPDM tube with synthetic fiber knit reinforcement and a heat-, ozone- and chemical coolant-resistant EPDM cover
- Meets requirements of SAE 20R4, class D2 and DIN 73411, class A (except for tolerances)
- Temperature range of -40°F to +257°F (-40°C to +125°C)
Quick facts
- Part: Gates 20504 radiator coolant hose
- Fits: 1970 Dodge Charger V8 5.2L and other vehicles and equipment
- Position: Upper
- Material: EPDM
- Condition: New
A coolant leak, a soft or collapsed hose, cracks or swelling can mean a hose is wearing out, though a leak or overheating can also start elsewhere in the cooling system. With the engine off and cool, look over the hose and both ends for splits, bulges and wet spots, so you know the hose is the cause before you replace it.
Fits
The vehicles it fits include the 1977-1979 Buick Skylark V8 5.0L, the 1975 Chevrolet Nova V8 4.3L, the 1975-1976 Nova V8 5.7L and the 1976-1979 Nova V8 5.0L. The 1970 Dodge Charger V8 5.2L takes one. If your car is not named here, open the "Vehicles it fits" section to match your exact model and engine.
Specifications
Fit and size
- Position: upper
- Quantity per vehicle: 1
- Centerline length: 23 in (584 mm)
- Inside diameter, both ends: 1.5 in (38 mm)
Build and materials
- Material: EPDM
- Construction: molded
- Internal spring: none
- Condition: new
- Country of origin: United States
Installation notes
- Gates recommends replacing the hose clamps each time a new coolant hose is installed.
- Not for fuel or oil transfer applications.
Interchange: MH-3504 · 14-1636-0 · BH-981
26000X · MC6 · RH51 · MH343 · 392 · 70392 · 70546 · 70617 · 70777 · E70392 · E70777 · MR718 · 1362548 · 1362549 · 1382435 · 326734 · 345513 · 3957584 · 7297 · 23151 · 2014 · C0504
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
26000X, MC6, MH-3504, RH51, MH343, 14-1636-0, 20504, 392, 70392, 70546, 70617, 70777, E70392, E70777, MR718, 1362548, 1362549, 1382435, 326734, 345513, 3957584, BH-981, 7297, 23151, 2014, C0504
Frequently Asked Questions
Is the Gates 20504 hose right for the 1977-1979 Buick Skylark V8 5.0L?
Yes. The Gates 20504 upper radiator coolant hose is listed for the 1977-1979 Buick Skylark V8 5.0L, and that car takes one. For other cars, open the "Vehicles it fits" section.
What is this Gates radiator coolant hose made of?
The Gates 20504 has an EPDM tube with synthetic fiber knit reinforcement. Its cover is EPDM too, and it resists heat, ozone and chemical coolant.
What temperature range can this Gates coolant hose handle?
This upper hose is rated from -40°F to +257°F (-40°C to +125°C). It meets SAE 20R4 class D2 and DIN 73411 class A, except for tolerances.
What are the inside diameter and length of the Gates 20504 hose?
Both ends have a 1.5 in (38 mm) inside diameter. The centerline length is 23 in (584 mm).
Should I put new clamps on when I install this coolant hose?
Yes. Gates recommends replacing the hose clamps each time a new coolant hose is installed. This hose is for coolant only, not for fuel or oil transfer.
