2023 Lexus ES350 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

15 Coolant / Antifreeze parts for the 2023 Lexus ES350 come from 6 brands — PRESTONE, PEAK, VALVOLINE and 3 other brands. The "Popular" part is PRESTONE AF2100.

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 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, BECK/ARNLEY, AISIN, VALVOLINE and 2 other brands supply 6 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

One part is listed for the 2023 Lexus ES350 — TECHPRO TO3014138.

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

MOTORAD supplies both parts for the 2023 Lexus ES350.

This group includes MOTORAD T37 and MOTORAD T125.

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 2023 Lexus ES350 come from 9 brands — TECHPRO, CSF, TYC and 6 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.

This group includes CSF 3858, TECHPRO TO3010364 and TYC 13670 and the remaining parts 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

3 Radiator Cap parts for the 2023 Lexus ES350 come from 3 brands — GATES, MOTORAD and SKP.

Listed part numbers: GATES 31412, MOTORAD T37 and SKP SK10242.

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

8 Radiator Fan Assembly parts are listed for the 2023 Lexus ES350, from TECHPRO, VARIOUS MFR, FOUR SEASONS and 5 other brands. FOUR SEASONS 75223 carries the "Popular" badge.

Economy: 2 parts, from TECHPRO and VARIOUS MFR. A representative part number is TECHPRO TO3115204.

The Standard Replacement section: 6 options from FOUR SEASONS, TYC, ACKOJA and 3 other brands. FOUR SEASONS 75223 is listed in this group.

Part numbers include FOUR SEASONS 75223 and TECHPRO TO3115204, among others listed above.