2023 Toyota Corolla 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

17 Coolant / Antifreeze parts are listed for the 2023 Toyota Corolla, from PRESTONE, PEAK, VALVOLINE and 3 other brands. PRESTONE AF2100 carries the "Popular" badge. 14 parts fit every engine; the other 3 are engine-specific.

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, PEAK, PRESTONE and VALVOLINE supply 3 parts: the catalog's value-priced group. A representative part number is PEAK BQA1GAL.

The Premium section lists 5 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 8 options from AISIN, BECK/ARNLEY, VALVOLINE and 2 other brands — built to original-equipment specification. AISIN ACT002 is listed in this group.

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

2 Coolant Reservoir parts for the 2023 Toyota Corolla come from TECHPRO. 1 part fits every engine; the other 1 is engine-specific.

Part numbers include TECHPRO TO3014143 and TECHPRO TO3014142.

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 for the 2023 Toyota Corolla come from 3 brands — MOTORAD, CALORSTAT and GATES. 1 part fits every engine; the other 3 are engine-specific.

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

14 Radiator parts are listed for the 2023 Toyota Corolla, from TYC, GPD, TECHPRO and 5 other brands. CSF 3983 carries the "Popular" badge.

Economy: 4 parts, from GPD and TECHPRO. A representative part number is GPD 13945C.

The Standard Replacement section: 10 options from TYC, CSF, KOYORAD and 3 other brands. CSF 3983 is listed in this group.

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

9 Radiator Cap parts are listed for the 2023 Toyota Corolla, from MOTORAD, GATES, CALORSTAT and 1 other brand. GATES 31411 carries the "Popular" badge.

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 ST36 is listed in this group.

The Standard Replacement section: 4 options from GATES, CALORSTAT, MOTORAD and 1 other brand. GATES 31411 is listed in this group.

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

Part numbers include GATES 31411, MOTORAD ST36 and CALORSTAT RC0047, among others listed above.

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

8 Radiator Fan Assembly parts for the 2023 Toyota Corolla come from 4 brands — TECHPRO, TYC, GPD and 1 other brand. The "Popular" part is TYC 625180.

The Economy section: 5 options from TECHPRO and GPD. GPD 2812280 is listed in this group.

Standard Replacement: 3 parts, from TYC and UAC. A representative part number is TYC 625180.

Listed part numbers: TYC 625180, GPD 2812280 and TECHPRO TO3115224, plus the other 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

4 Radiator Hose parts for the 2023 Toyota Corolla come from 2 brands — CONTINENTAL and GATES.

This group includes CONTINENTAL 66027, CONTINENTAL 62765 and CONTINENTAL 66029 and the remaining parts above.

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

16 Temperature Sender / Sensor parts are listed for the 2023 Toyota Corolla, from STANDARD MOTOR PRODUCTS, WELLS, BECK/ARNLEY and 7 other brands. ULTRA-POWER 5S1616 carries the "Popular" badge. 1 part fits every engine; the other 15 are engine-specific.

Economy: 3 parts, from ULTRA-POWER, GPD and HOLSTEIN. A representative part number is ULTRA-POWER 5S1616.

The Standard Replacement section: 12 options from STANDARD MOTOR PRODUCTS, WELLS, BECK/ARNLEY and 3 other brands. DENSO 1931000 is listed in this group.

1 ungrouped part is not assigned to a grade, 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

9 Thermostat parts for the 2023 Toyota Corolla come from 7 brands — MOTORAD, AISIN, AUTOTECNICA and 4 other brands. The "Popular" part is GATES 34707.

The Economy section: 1 option from AUTOTECNICA. AUTOTECNICA TY0716357 is listed in this group.

Standard Replacement: 6 parts, from GATES, MOTORAD, AISIN and 3 other brands. A representative part number is GATES 34707.

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

Part numbers include GATES 34707, AUTOTECNICA TY0716357 and MOTORAD 700180, among others listed above.

This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

3 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2023 Toyota Corolla, from ELRING and FEL-PRO.

Listed part numbers: ELRING 688630, ELRING 306360 and FEL-PRO 36007.

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

This group shows a single part: MOTORAD CH2109.

This table covers the gaskets that seal the Water Inlet. 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

One part is listed for the 2023 Toyota Corolla — ELRING 775210.

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

2 Water Pump parts for the 2023 Toyota Corolla come from AISIN.

Part numbers include AISIN WPT214 and AISIN WPT209.

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

4 Water Pump Gasket parts are listed for the 2023 Toyota Corolla, from ELRING, FEL-PRO and VICTOR REINZ.

Part numbers include ELRING 699690, ELRING 917940 and FEL-PRO 36010, among others listed above.