This page lists 33 cooling system parts for the 2021 Toyota Hilux, across 8 part types, covering the 2.7L L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
The cooling system system on the 2021 Toyota Hilux keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. The largest groups are Coolant / Antifreeze (13 parts), Thermostat (5 parts) and Radiator Cap (4 parts). The other 5 part types cover the remaining 11 parts.
The 2021 Toyota Hilux came with a single engine, the 2.7L L4, and every part is verified against it.
15 brands supply cooling system parts for the 2021 Toyota Hilux, led by MOTORAD (7 parts), PRESTONE (5 parts) and PEAK (4 parts), plus 12 more brands. Quality grades include Standard Replacement, Economy and Premium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Toyota Hilux. 4 parts have it, including PRESTONE AF3100 (Coolant / Antifreeze) and MOTORAD 281180 (Thermostat). Each part number opens a page with every vehicle that part fits.
Bypass Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 626554 | 🇲🇽 MX | View on Amazon | |
| SKP | SK121409 | 🇲🇽 MX | View on Amazon |
This table covers the Bypass pipes.
2 Bypass Pipe parts are listed for the 2021 Toyota Hilux, from DORMAN and SKP.
This group includes DORMAN 626554 and SKP SK121409.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AF3055 | 🇲🇽 MX | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF3100 | 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK | BQA1GAL | 🇲🇽 MX | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE | 719009 | 🇲🇽 MX | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AFC12100 | 🇲🇽 MX | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇲🇽 MX | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇲🇽 MX | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇲🇽 MX | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE | AFMAX | 🇲🇽 MX | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular | ACT002 | 🇲🇽 MX | PinkHOAT | View on Amazon |
| AISIN | ACT002C | 🇲🇽 MX | Pink - Canada OnlyHOAT | View on Amazon |
| PEAK | PAR1GAL | 🇲🇽 MX | OET Asian Extended Life Red1 Gallon | View on Amazon |
| PENTOSIN | 8115209 | 🇲🇽 MX | Pentofrost A41 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.
13 Coolant / Antifreeze parts are listed for the 2021 Toyota Hilux, from PRESTONE, PEAK, AISIN and 2 other brands. PRESTONE AF3100 carries the "Popular" badge.
The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.
In the Economy grade, PRESTONE, PEAK and VALVOLINE supply 3 parts: the catalog's value-priced group. A representative part number is PRESTONE AF3100.
The Heavy Duty section lists 1 option from PRESTONE — rated for severe service. PRESTONE AFC12100 is listed in this group.
The Premium section lists 4 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.
The Standard Replacement section lists 4 options from AISIN, PEAK and PENTOSIN — built to original-equipment specification. AISIN ACT002 is listed in this group.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | ST37 | 🇲🇽 MX | Safety LeverIndicator Markings Color: Silver | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 31411 | 🇲🇽 MX | OE Type | View on Amazon |
| MOTORAD | T37 | 🇲🇽 MX | StandardIncludes Hose | View on Amazon |
| SKP | SK10241 | 🇲🇽 MX | Pressure Rating 13 psi | View on Amazon |
This table covers the caps that hold system pressure at the radiator or reservoir neck. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
4 Radiator Cap parts are listed for the 2021 Toyota Hilux, from MOTORAD, GATES and SKP.
The Locking Replacement section lists 1 option from MOTORAD — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. MOTORAD ST37 is listed in this group.
The Standard Replacement section: 3 options from GATES, MOTORAD and SKP. GATES 31411 is listed in this group.
Listed part numbers: MOTORAD ST37, GATES 31411 and MOTORAD T37, plus the other parts above.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL | 67400 | 🇲🇽 MX | Molded | View on Amazon |
This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle.
This group shows a single part: CONTINENTAL 67400.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2CTS0016 | 🇲🇽 MX | Connector Shape: Rectangular | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | D583 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS | TX40 | 🇲🇽 MX | Rectangular Connector2 Terminal | 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.
3 Temperature Sender / Sensor parts are listed for the 2021 Toyota Hilux, from HOLSTEIN, ACDELCO and STANDARD MOTOR PRODUCTS.
Economy: 1 part, from HOLSTEIN. A representative part number is HOLSTEIN 2CTS0016.
The Standard Replacement section: 2 options from ACDELCO and STANDARD MOTOR PRODUCTS. ACDELCO D583 is listed in this group.
Part numbers include HOLSTEIN 2CTS0016, ACDELCO D583 and STANDARD MOTOR PRODUCTS TX40.
Thermostat
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | 5281180 | 🇲🇽 MX | Ultra Stat | View on Amazon |
| MOTORAD | 5281180 | 🇲🇽 MX | Ultra Stat | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | 7281180 | 🇲🇽 MX | Fail-Safe | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | 281180 | 🇲🇽 MX | Standard | View on Amazon |
| MOTORAD | 281192 | 🇲🇽 MX | Standard | View on Amazon |
This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part.
5 Thermostat parts for the 2021 Toyota Hilux come from 2 brands — MOTORAD and FVP. The "Popular" part is MOTORAD 281180.
Heavy Duty: 2 parts, from FVP and MOTORAD. A representative part number is FVP 5281180.
Premium: 1 part, from MOTORAD. A representative part number is MOTORAD 7281180.
Standard Replacement: 2 parts, from MOTORAD. A representative part number is MOTORAD 281180.
Part numbers include MOTORAD 281180, FVP 5281180 and MOTORAD 7281180, among others listed above.
Thermostat Housing / Water Outlet
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 9025935 | 🇲🇽 MX | Thermostat Housing | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | CH5385 | 🇲🇽 MX | Fits Thermostat Housingor Water Outlet | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
2 Thermostat Housing / Water Outlet parts for the 2021 Toyota Hilux come from 2 brands — DORMAN and MOTORAD.
The Economy section: 1 option from DORMAN. DORMAN 9025935 is listed in this group.
Standard Replacement: 1 part, from MOTORAD. A representative part number is MOTORAD CH5385.
This group includes DORMAN 9025935 and MOTORAD CH5385.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | US9293 | 🇲🇽 MX | View on Amazon | |
| US MOTOR WORKS | US9293 | 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 43291 | 🇲🇽 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.
3 Water Pump parts for the 2021 Toyota Hilux come from 3 brands — FVP, US MOTOR WORKS and GATES.
The Economy section: 2 options from FVP and US MOTOR WORKS. FVP US9293 is listed in this group.
Standard Replacement: 1 part, from GATES. A representative part number is GATES 43291.
Part numbers include FVP US9293 and GATES 43291, among others listed above.
Buying Cooling System Parts for a 2021 Toyota Hilux
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 2.7L L4 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 Thermostat .
Frequently Asked Questions
How many cooling system parts fit the 2021 Toyota Hilux?
Our catalog currently lists 33 cooling system parts for the 2021 Toyota Hilux across 8 subcategories and 15 brands, covering the 2.7L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2021 Toyota Hilux?
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 2021 Toyota Hilux 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 2021 Toyota Hilux?
Every part on this page is matched to the 2.7L L4 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 2021 Toyota Hilux
Cooling System Parts for Other Toyota Hilux Years
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