2021 Toyota RAV4 Cooling System Parts

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. Read more

19 Coolant / Antifreeze parts for the 2021 Toyota RAV4 come from 7 brands — PRESTONE, PEAK, VALVOLINE and 4 other brands. The "Popular" part is FVP MV5050GAL. 17 parts fit every engine; the other 2 are engine-specific.

In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.

The Economy section lists 4 options from FVP, PEAK, PRESTONE and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.

In the Heavy Duty grade, PRESTONE supplies 1 part: rated for severe service. A representative part number is PRESTONE AFC12100.

In the Premium grade, PRESTONE and PEAK supply 5 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.

In the Standard Replacement grade, AISIN, VALVOLINE, BECK/ARNLEY and 2 other brands supply 8 parts: built to original-equipment specification. A representative part number is AISIN ACT002.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

3 Coolant Reservoir parts are listed for the 2021 Toyota RAV4, from AUTOTECNICA, TECHPRO and VARIOUS MFR. All of them fit every engine offered in the 2021 RAV4.

Part numbers include AUTOTECNICA TY0724561 and TECHPRO TO3014141, among others listed above.

This table covers the caps on the overflow / expansion tank. 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. Read more

4 Coolant Reservoir Cap parts are listed for the 2021 Toyota RAV4, from MOTORAD and CALORSTAT. 2 parts fit every engine; the other 2 are engine-specific.

Part numbers include CALORSTAT RC0145, MOTORAD T122 and MOTORAD T118, among others listed above.

This table covers the adapters used to pressure-test this cooling system. Read more

2 Cooling System Tester Adapter parts for the 2021 Toyota RAV4 come from MOTORAD. Every part fits both the 2.5L L4 and the 2.5L L4 ELECTRIC/GAS.

Part numbers include MOTORAD 3124 and MOTORAD 3125.

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. Read more

5 Inverter Cooler parts are listed for the 2021 Toyota RAV4, from CSF, GPD, NISSENS and 2 other brands. CSF 3997 carries the "Popular" badge.

Listed part numbers: CSF 3997, GPD 2611442 and NISSENS 607470, plus the other parts above.

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. Read more

20 Radiator parts for the 2021 Toyota RAV4 come from 10 brands — KOYORAD, CSF, TYC and 7 other brands. The "Popular" part is CSF 3858.

The Economy section: 1 option from TECHPRO. TECHPRO TO3010364 is listed in this group.

Standard Replacement: 8 parts, from CSF, TYC, AGILITY and 5 other brands. A representative part number is CSF 3858.

11 further parts sit outside the graded sections, with the same engine-level match.

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. Read more

5 Radiator Cap parts for the 2021 Toyota RAV4 come from 4 brands — MOTORAD, GATES, CALORSTAT and 1 other brand. The "Popular" part is GATES 31411. Every part fits both the 2.5L L4 and the 2.5L L4 ELECTRIC/GAS.

In the Locking Replacement grade, MOTORAD supplies 1 part: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is MOTORAD ST36.

Standard Replacement: 4 parts, from GATES, CALORSTAT, MOTORAD and 1 other brand. A representative part number is GATES 31411.

Listed part numbers: GATES 31411, MOTORAD ST36 and CALORSTAT RC0047, plus the other parts above.

This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator. Read more

11 Radiator Fan Assembly parts are listed for the 2021 Toyota RAV4, from SKP, GPD, VARIOUS MFR and 4 other brands. SKP SK75223 carries the "Popular" badge. 3 parts fit every engine; the other 8 are engine-specific.

Economy: 6 parts, from SKP, GPD and VARIOUS MFR. A representative part number is SKP SK75223.

The Standard Replacement section: 5 options from TYC, ACKOJA, AGILITY and 1 other brand. TYC 624440 is listed in this group.

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. Read more

3 Radiator Hose parts are listed for the 2021 Toyota RAV4, from CONTINENTAL and GATES.

Part numbers include CONTINENTAL 66209, CONTINENTAL 62145 and GATES 52435.

This table covers the Radiator Upper Air Baffle retainers and clips. Read more

DORMAN supplies both parts for the 2021 Toyota RAV4. All of them fit every engine offered in the 2021 RAV4.

Listed part numbers: DORMAN 963134D and DORMAN 700675.

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. Read more

6 Temperature Sender / Sensor parts for the 2021 Toyota RAV4 come from 6 brands — GPD, AISIN, STANDARD MOTOR PRODUCTS and 3 other brands. The "Popular" part is AISIN THSAZ8004. Every part fits both the 2.5L L4 and the 2.5L L4 ELECTRIC/GAS.

The Economy section: 1 option from GPD. GPD 1814549 is listed in this group.

Standard Replacement: 5 parts, from AISIN, STANDARD MOTOR PRODUCTS, BECK/ARNLEY and 2 other brands. A representative part number is AISIN THSAZ8004.

Part numbers include AISIN THSAZ8004, GPD 1814549 and STANDARD MOTOR PRODUCTS TX319, among others listed above.

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. Read more

6 Thermostat parts are listed for the 2021 Toyota RAV4, from AUTOTECNICA, AISIN, MOTORAD and 3 other brands. AISIN THT023 carries the "Popular" badge. All of them fit every engine offered in the 2021 RAV4.

Economy: 1 part, from AUTOTECNICA. A representative part number is AUTOTECNICA TY0719461.

The Standard Replacement section: 5 options from AISIN, MOTORAD, BECK/ARNLEY and 2 other brands. AISIN THT023 is listed in this group.

Listed part numbers: AISIN THT023, AUTOTECNICA TY0719461 and MOTORAD 1115180, plus the other parts above.

This table covers the housings and outlets the thermostat sits in. Read more

8 Thermostat Housing / Water Outlet parts are listed for the 2021 Toyota RAV4, from MOTORAD, GATES, SKP and 1 other brand. SKP SK86328 carries the "Popular" badge. 3 parts fit every engine; the other 5 are engine-specific.

Economy: 1 part, from SKP. A representative part number is SKP SK86328.

The Standard Replacement section: 7 options from MOTORAD, GATES and FOUR SEASONS. MOTORAD CH2099 is listed in this group.

Part numbers include SKP SK86328, MOTORAD CH2099 and FOUR SEASONS 86369, among others listed above.

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. Read more

11 Water Pump parts are listed for the 2021 Toyota RAV4, from FVP, BECK/ARNLEY, ACKOJA and 5 other brands. BECK/ARNLEY 1312557 carries the "Popular" badge. 4 parts fit every engine; the other 7 are engine-specific.

Economy: 4 parts, from BECK/ARNLEY, ACKOJA and SKP. A representative part number is BECK/ARNLEY 1312557.

The Standard Replacement section: 3 options from AISIN, FOUR SEASONS and GMB. AISIN WPT207 is listed in this group.

4 ungrouped parts are not assigned to a grade, with the same engine-level match.

This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

2 Water Pump Gasket parts for the 2021 Toyota RAV4 come from 2 brands — MAHLE / CLEVITE and VICTOR REINZ. Every part fits both the 2.5L L4 and the 2.5L L4 ELECTRIC/GAS.

Listed part numbers: MAHLE / CLEVITE K33776 and VICTOR REINZ 711790100.