2024 Toyota Highlander 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

16 Coolant / Antifreeze parts for the 2024 Toyota Highlander come from 5 brands — PRESTONE, PEAK, VALVOLINE and 2 other brands. The "Popular" part is PRESTONE AF2100. 14 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 3 options from PEAK, PRESTONE and VALVOLINE — the catalog's value-priced group. PEAK BQA1GAL 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, PEAK and 1 other brand supply 6 parts: built to original-equipment specification. A representative part number is AISIN ACT002.

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

3 Coolant Reservoir Cap parts are listed for the 2024 Toyota Highlander, from CALORSTAT, GATES and MOTORAD. 2 parts fit every engine; the other 1 is engine-specific.

Part numbers include CALORSTAT RC0145, GATES 31541 and MOTORAD T51.

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 2024 Toyota Highlander, from GPD, DORMAN, CSF and 1 other brand.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 918466.

The Standard Replacement section: 2 options from CSF and TECHPRO. CSF 3971 is listed in this group.

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

Part numbers include DORMAN 918466, CSF 3971 and TECHPRO TO3011110, among others listed 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

9 Radiator parts for the 2024 Toyota Highlander come from 7 brands — CSF, GPD, DENSO and 4 other brands. The "Popular" part is CSF 3970.

The Economy section: 1 option from GPD. GPD 13842C is listed in this group.

Standard Replacement: 4 parts, from CSF, DENSO, SPECTRA PREMIUM and 1 other brand. A representative part number is CSF 3970.

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

Part numbers include CSF 3970, GPD 13842C and DENSO 2219626, among others listed above.

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

4 Radiator Cap parts for the 2024 Toyota Highlander come from 4 brands — CALORSTAT, GATES, MOTORAD and 1 other brand. 3 parts fit every engine; the other 1 is engine-specific.

This group includes CALORSTAT RC0047, GATES 31411 and MOTORAD T36 and the remaining parts above.

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

4 Radiator Fan Assembly parts are listed for the 2024 Toyota Highlander, from UAC, GPD and TYC.

Economy: 1 part, from GPD. A representative part number is GPD 2812473.

The Standard Replacement section: 1 option from UAC. UAC FA50859C is listed in this group.

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

This group includes GPD 2812473, UAC FA50859C and TYC 624980 and the remaining parts above.

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

One part is listed for the 2024 Toyota Highlander — CONTINENTAL 67231.

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

11 Temperature Sender / Sensor parts for the 2024 Toyota Highlander come from 8 brands — ULTRA-POWER, STANDARD MOTOR PRODUCTS, WELLS and 5 other brands. The "Popular" part is ULTRA-POWER 5S1616. 2 parts fit every engine; the other 9 are engine-specific.

The Economy section: 4 options from ULTRA-POWER, GPD and HOLSTEIN. ULTRA-POWER 5S1616 is listed in this group.

Standard Replacement: 6 parts, from STANDARD MOTOR PRODUCTS, WELLS, ACDELCO and 1 other brand. A representative part number is STANDARD MOTOR PRODUCTS TX40.

1 further part sits outside the graded sections, with the same engine-level match.

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

One part is listed for the 2024 Toyota Highlander — MOTORAD 1231180.

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

MOTORAD supplies both parts for the 2024 Toyota Highlander.

Part numbers include MOTORAD CH2175 and MOTORAD CH2094.

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

17 Water Pump parts are listed for the 2024 Toyota Highlander, from FVP, AISIN, FOUR SEASONS and 6 other brands. BECK/ARNLEY 1312557 carries the "Popular" badge.

Economy: 2 parts, from BECK/ARNLEY 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.

12 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 2024 Toyota Highlander come from 2 brands — MAHLE / CLEVITE and VICTOR REINZ. 1 part fits every engine; the other 1 is engine-specific.

Part numbers include MAHLE / CLEVITE K33776 and VICTOR REINZ 711790100.