Dayco Engine Coolant Bypass Hose P/N:71448
Dayco 70844 coolant bypass hose for the 1968-1987 Toyota Land Cruiser carries engine coolant through the bypass circuit.
Coolant residue, a cracked or soft hose or a coolant smell can point to a worn engine coolant bypass hose. These signs alone do not prove the hose is at fault, since a leaking thermostat housing can leave a similar mess. If the hose is the cause, this one replaces it.
This hose fits the 1968-1980 Toyota Land Cruiser and the 1981-1987 Land Cruiser L6-4.2L. Each takes one hose, and this listing is a single hose.
Interchange: 142-3573 · L52-23010
14220S · C1222 · 21222 · 64376 · 7933
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This part cross-references / interchanges with the following part numbers:
Does the Dayco 70844 coolant bypass hose fit the 1968-1987 Toyota Land Cruiser?
Yes. Dayco 70844 fits the 1968-1980 Toyota Land Cruiser and the 1981-1987 Land Cruiser L6-4.2L, and each takes one hose.
What is this coolant bypass hose made of?
It is made of EPDM and is listed to SAE J20R4 Class D-1 and SAE J1684 Type EC.
Does the Dayco 70844 hose come with a protective sleeve or heat shield?
No. This coolant bypass hose does not include a protective sleeve or a heat shield.
How can I tell if a coolant bypass hose is worn?
With the engine off and cool, look for coolant residue, cracks, or a hose that feels soft or swollen. A shop can pressure-test the cooling system.
Does Dayco 70844 replace part number 142-3573?
Yes. 142-3573 is one of the numbers Dayco 70844 replaces, along with L52-23010 and 14220S.
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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.