Dayco 71791 coolant bypass hose for the 1994-1998 Mercedes-Benz E320 and other vehicles carries engine coolant between the cooling-system connections it joins.
- Single I.D. hose type
- EPDM hose material
- Specified to SAE J20R4 Class D-1 and SAE J1684 Type EC
Quick facts
- Part: Dayco 71791 coolant bypass hose
- Also called: engine coolant bypass hose
- Fits: the 1994-1998 Mercedes-Benz E320 and other vehicles
- Material: EPDM
- Condition: New
Coolant residue at the hose ends, a cracked or swollen hose, or a temperature gauge that climbs can point to a worn engine coolant bypass hose. Those signs alone do not prove the hose is at fault, since a stuck thermostat can also cause overheating.
Fits
The vehicles it fits include the 1994-1998 Mercedes-Benz E320, the 1994-1998 Mercedes-Benz S320 and the 1994-1997 Mercedes-Benz C280, and one hose goes on each of those cars. If your Mercedes-Benz is not named here, look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Trunk height: 6 1/2 in
Build and materials
- Hose type: Single I.D. hose
- Material: EPDM
- SAE specification: SAE J20R4 Class D-1, SAE J1684 Type EC
- Condition: New
In the box
One coolant bypass hose, without a protective sleeve or heat shield.
Interchange: 20642S · 62735 · 24152 · 16829 · CHE0246P
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
20642S, 62735, 24152, 16829, CHE0246P, 104.203.04.82
Frequently Asked Questions
Does the Dayco 71791 coolant bypass hose fit a 1994-1998 Mercedes-Benz E320?
Yes. Dayco 71791 is listed for the 1994-1998 Mercedes-Benz E320, and the 1994-1998 Mercedes-Benz S320 takes it too. Each takes one hose.
Does the Dayco 71791 bypass hose come with a heat shield or protective sleeve?
No. This listing is one EPDM hose without a protective sleeve or heat shield.
Which SAE standards does this Dayco coolant bypass hose meet?
Dayco 71791 is specified to SAE J20R4 Class D-1 and SAE J1684 Type EC. It is a Single I.D. hose with a trunk height of 6 1/2 in.
How can I check a coolant bypass hose for wear?
With the engine off and cool, look for cracks, swelling, soft spots or coolant residue at the hose ends. A shop can pressure-test the system if you suspect a leak.
Is CHE0246P the same hose as Dayco 71791?
Yes. CHE0246P is a listed interchange number for Dayco 71791, a Single I.D. EPDM coolant bypass hose.
