This page lists 15 cooling system parts for the 2026 Toyota Sequoia, across 6 part types, covering the 3.4L V6 ELECTRIC/GAS Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2026 Toyota Sequoia, 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. Most of the listed parts are Coolant / Antifreeze (5 parts), Water Pump (4 parts) and Radiator (3 parts). The other 3 part types cover the remaining 3 parts.
The 2026 Toyota Sequoia came with a single engine, the 3.4L V6 ELECTRIC/GAS Turbocharged, and every part is verified against it.
10 brands supply cooling system parts for the 2026 Toyota Sequoia, led by AISIN (2 parts), VALVOLINE (2 parts) and CSF (2 parts), plus 7 more brands. Quality grades include Standard Replacement, Economy and Heavy Duty.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2026 Toyota Sequoia. 1 part has it: AISIN ACT002 (Coolant / Antifreeze). Each part number opens a page with every vehicle that part fits.
Coolant / Antifreeze
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AFC12100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular | ACT002 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | PinkHOAT | View on Amazon |
| AISIN | ACT002C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pink - Canada OnlyHOAT | View on Amazon |
| VALVOLINE | 675130 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Asian Vehicle Red1 Gallon | View on Amazon |
| VALVOLINE | 898406 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Hybrid Vehicle1 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 are listed for the 2026 Toyota Sequoia, from AISIN, VALVOLINE and PRESTONE. AISIN ACT002 carries the "Popular" badge.
The Heavy Duty section lists 1 option from PRESTONE — rated for severe service. PRESTONE AFC12100 is listed in this group.
The Standard Replacement section lists 4 options from AISIN and VALVOLINE — built to original-equipment specification. AISIN ACT002 is listed in this group.
This group includes AISIN ACT002, PRESTONE AFC12100 and AISIN ACT002C and the remaining parts above.
Inverter Cooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF | 3973 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Upgraded with Higher Performance & Stronger B-Tube Design | View on Amazon |
This table covers the Inverter coolers. Typical signs include overheated fluid, a leak at the fittings, or mixed fluids in the reservoir. Flush the lines when you replace a cooler.
This group shows a single part: CSF 3973.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 13923C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF | 3972 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Upgraded Core. 7% Thicker 30mm vs OEM 28mm | View on Amazon |
| TYC | 13923 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap.
3 Radiator parts are listed for the 2026 Toyota Sequoia, from GPD, CSF and TYC.
In the Economy grade, GPD supplies 1 part: the catalog's value-priced group. A representative part number is GPD 13923C.
The Standard Replacement section: 2 options from CSF and TYC. CSF 3972 is listed in this group.
This group includes GPD 13923C, CSF 3972 and TYC 13923.
Radiator Fan Clutch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| US MOTOR WORKS | 22365 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1794 Edition or Capstone or Limited or Platinum or SR5 Model or TRD Pro | View on Amazon |
This table covers the Radiator Fan clutches. Typical signs include slip at highway speed, chatter on takeoff, or a pedal that stays low. Resurface or replace the flywheel with the clutch — a heat-checked flywheel wastes the new disc.
One part is listed for the 2026 Toyota Sequoia — US MOTOR WORKS 22365.
Temperature Sender / Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NISSENS | 207139 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1794 Edition or Capstone or Limited or Platinum or SR5 Model or TRD Pro | View on Amazon |
This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender.
One part is listed for the 2026 Toyota Sequoia — NISSENS 207139.
Water Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | 1704230 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Water Pump Drive Type: Serpentine Belt | View on Amazon |
| FVP | US8239 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1794 Edition or Capstone or Limited or Platinum or SR5 Model or TRD Pro | View on Amazon |
| GMB | 1704230 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| US MOTOR WORKS | US8239 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1794 Edition or Capstone or Limited or Platinum or SR5 Model or TRD Pro | 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.
4 Water Pump parts for the 2026 Toyota Sequoia come from 3 brands — FVP, GMB and US MOTOR WORKS.
Part numbers include FVP 1704230 and FVP US8239, among others listed above.
Buying Cooling System Parts for a 2026 Toyota Sequoia
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 3.4L V6 ELECTRIC/GAS Turbocharged 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 Toyota Sequoia?
Our catalog currently lists 15 cooling system parts for the 2026 Toyota Sequoia across 6 subcategories and 10 brands, covering the 3.4L V6 ELECTRIC/GAS Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2026 Toyota Sequoia?
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 Toyota Sequoia 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 Toyota Sequoia?
Every part on this page is matched to the 3.4L V6 ELECTRIC/GAS Turbocharged 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 Toyota Sequoia
Cooling System Parts for Other Toyota Sequoia 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.