Handle a leaking or clogged core with the AGILITY AUTO PARTS HVAC Heater Core 9010311 — a straightforward 1988-1993 Nissan Pathfinder heater core replacement that also fits the 1988-1994 Nissan D21. This heater core circulates hot engine coolant through its fin-and-tube matrix so the blower can push warm air into the cabin and help defog the glass. It is a direct-fit replacement for the 1988-1994 Nissan D21 and the 1988-1993 Nissan Pathfinder; see the Buyer's Guide tab for engine-level applications.
If a corroded, clogged, or leaking core is the cause of weak heat, coolant smell, or fogged windows, this replaces it. Always confirm your cooling system is otherwise sound before installation.
Interchange: 18-12030
1812030 · 27145N9601 · 98769 · 99168 · 91823 · 398321 · 98321
This part cross-references / interchanges with the following part numbers:
What vehicles does this heater core fit?
It is a direct-fit replacement for the 1988-1994 Nissan D21 and the 1988-1993 Nissan Pathfinder. Check the Buyer's Guide tab for engine-level details.
Is this the right heater core for a 1988-1993 Nissan Pathfinder?
Yes. It's fitment-checked in the actual vehicle's HVAC heater module for a drop-in fit and is certified to meet or exceed OE specifications.
What does the heater core do?
It circulates hot engine coolant through its fin-and-tube matrix so the blower can move warm air into the cabin and help defog the windows.
What are signs my heater core may need replacing?
Weak or no heat, a sweet coolant smell inside, fogged windows, or coolant on the passenger floor can indicate a clogged or leaking core. Diagnose the cause first.
Is this heater core leak tested?
Yes. It's manufactured under ISO TS16949 quality systems and 100% leak tested.
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.
