Keep coolant moving to the heater core with the DAYCO heater hose 87004, a molded replacement that installs on the 1985-1986 Ford Mustang (L4-2.3L), 1990-1993 Geo Storm (L4-1.6L), 1990 Isuzu Impulse (L4-1.6L), and 1985-1989 Merkur XR4Ti (L4-2.3L). Its pre-formed molded shape follows the factory routing, making it an easy swap for a hardened, cracked, or leaking original.
Cataloged for routing positions including engine to oil cooler, pipe to throttle body, and pipe to intake manifold. If you need a Mustang heater hose or a DAYCO hvac heater hose, signs the old hose may need replacing include coolant weeping at the ends, soft or swollen spots, cracking, and a low-coolant or overheating condition traced to the hose.
Interchange: 14050S · 18304 · 63172 · 4446 · 10304 · 303004
This part cross-references / interchanges with the following part numbers:
What vehicles does the DAYCO 87004 heater hose fit?
It fits the 1985-1986 Ford Mustang (L4-2.3L), 1990-1993 Geo Storm (L4-1.6L), 1990 Isuzu Impulse (L4-1.6L), and 1985-1989 Merkur XR4Ti (L4-2.3L). Confirm your application in the Buyer's Guide tab.
What is the inside diameter and length of this hose?
Both ends have a .38 in (3/8 in) inside diameter, and the centerline length is 11.25 in. It is a single molded hose.
Why is it called a molded heater hose?
It is pre-formed to a set shape rather than straight, so it follows the factory routing on the listed applications without kinking or needing to be bent into place.
Where does this hose route on the engine?
It is cataloged for routing positions including engine to oil cooler, pipe to throttle body, and pipe to intake manifold. Match it to the original hose you are replacing.
What are signs this heater hose needs replacing?
Coolant seepage at the ends, cracking, soft or swollen sections, and a low-coolant or overheating condition traced to the hose. Diagnose the source of any leak before replacing.
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.
