This page lists 8 cooling system parts for the 2026 Honda Pilot, across 3 part types, covering the 3.5L V6 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2026 Honda Pilot, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. All 8 listed parts are Coolant / Antifreeze (5 parts), Water Pump (2 parts) and Radiator Fan Assembly (1 part).
Every part on this page is matched to the 3.5L V6 — the only engine offered in the 2026 Honda Pilot.
The most listed brands for 2026 Honda Pilot cooling system parts are VALVOLINE (2 parts), AISIN (2 parts) and PENTOSIN (1 part), plus 3 more brands. Quality grades include Standard Replacement and Economy.
1 part on this 2026 Honda Pilot page carries a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — VALVOLINE 861398 (Coolant / Antifreeze). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE | 719009 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | 861398 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Asian Vehicle Blue1 Gallon | View on Amazon |
| AISIN | ACB003 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueHOAT | View on Amazon |
| AISIN | ACB003C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Blue - Canada OnlyHOAT | View on Amazon |
| PENTOSIN | 8115207 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pentofrost A31 Gallon | View on Amazon |
This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator.
5 Coolant / Antifreeze parts for the 2026 Honda Pilot come from 3 brands — VALVOLINE, AISIN and PENTOSIN. The "Popular" part is VALVOLINE 861398.
The Economy section lists 1 option from VALVOLINE — the catalog's value-priced group. VALVOLINE 719009 is listed in this group.
In the Standard Replacement grade, AISIN, VALVOLINE and PENTOSIN supply 4 parts: built to original-equipment specification. A representative part number is VALVOLINE 861398.
Part numbers include VALVOLINE 861398, VALVOLINE 719009 and AISIN ACB003, among others listed above.
Radiator Fan Assembly
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TYC | 601650 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
One part is listed for the 2026 Honda Pilot — TYC 601650.
Water Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | 1353100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GMB | 1353100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off.
2 Water Pump parts are listed for the 2026 Honda Pilot, from FVP and GMB.
This group includes FVP 1353100 and the remaining parts above.
Buying Cooling System Parts for a 2026 Honda Pilot
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Confirm you have the 3.5L V6 engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Coolant / Antifreeze and Water Pump .
Frequently Asked Questions
How many cooling system parts fit the 2026 Honda Pilot?
Our catalog currently lists 8 cooling system parts for the 2026 Honda Pilot across 3 subcategories and 6 brands, covering the 3.5L V6 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2026 Honda Pilot?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2026 Honda Pilot was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2026 Honda Pilot?
Every part on this page is matched to the 3.5L V6 engine. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2026 Honda Pilot
Cooling System Parts for Other Honda Pilot Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.