36 Cooling system parts are listed for the 2024 Lexus NX250, in 6 part types, covering the 2.5L L4 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2024 Lexus NX250, 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. 29 parts of the 36 listed are Coolant / Antifreeze (16 parts), Radiator (8 parts) and Radiator Fan Assembly (5 parts). The other 3 part types cover the remaining 7 parts.
Every part on this page is matched to the 2.5L L4 — the only engine offered in the 2024 Lexus NX250.
The most listed brands for 2024 Lexus NX250 cooling system parts are PRESTONE (6 parts), PEAK (4 parts) and TYC (3 parts), plus 18 more brands. Quality grades include Standard Replacement, Economy and Premium.
7 parts on this 2024 Lexus NX250 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including PRESTONE AF2100 (Coolant / Antifreeze) and CSF 3858 (Radiator). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AF3055 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK | BQA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| PRESTONE | AF3100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| VALVOLINE | 719009 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AFC12100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE | AF6210 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | MAX Original EquipmentAsian Red/Pink | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular | ACT002 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | PinkHOAT | View on Amazon |
| BECK/ARNLEY Popular | 2521502 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Premium Extra Life Pink | View on Amazon |
| VALVOLINE Popular | 675130 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Asian Vehicle Red1 Gallon | View on Amazon |
| BECK/ARNLEY | 2521002 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Premium Red | View on Amazon |
| PEAK | PAR1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OET Asian Extended Life Red1 Gallon | View on Amazon |
| PENTOSIN | 8115209 | 🇺🇸 US 🇨🇦 CA 🇲🇽 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.
16 Coolant / Antifreeze parts for the 2024 Lexus NX250 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 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, BECK/ARNLEY, AISIN, VALVOLINE and 2 other brands supply 6 parts: built to original-equipment specification. A representative part number is AISIN ACT002.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO | TO3014141 | 🇺🇸 US 🇨🇦 CA | Includes Cap | View on Amazon |
| VARIOUS MFR | TO3014141 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Cap | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
2 Coolant Reservoir parts are listed for the 2024 Lexus NX250, from TECHPRO and VARIOUS MFR.
This group includes TECHPRO TO3014141 and the remaining parts above.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | RC0170 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Attachment Type: Push Fit | View on Amazon |
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.
One part is listed for the 2024 Lexus NX250 — CALORSTAT RC0170.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO | TO3010364 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | North America Built Vehicle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular | 3858 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Upgraded with Higher Performance & Stronger B-Tube Design | View on Amazon |
| TYC Popular | 13670 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits North America Builtor AWDFor vehicle built in Japan | View on Amazon |
| DENSO | 2219627 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Body code AAZA25Japan Product Part | View on Amazon |
| NISSENS | 606786 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Brazed cooling fins | View on Amazon |
| OSC | 13670 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | For vehicle built in USA | View on Amazon |
| SPECTRA PREMIUM | CU13670 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UAC | RA13670C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | For vehicle built in USA or For vehicle built in Japanwith AWD | View on Amazon |
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.
8 Radiator parts for the 2024 Lexus NX250 come from 8 brands — TECHPRO, CSF, TYC and 5 other brands. The "Popular" part is CSF 3858.
The Economy section: 1 option from TECHPRO. TECHPRO TO3010364 is listed in this group.
Standard Replacement: 7 parts, from CSF, TYC, DENSO and 4 other brands. A representative part number is CSF 3858.
This group includes CSF 3858, TECHPRO TO3010364 and TYC 13670 and the remaining parts above.
Radiator Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | RC0047 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes 2 sealsMetallic | View on Amazon |
| GATES | 31411 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Type | View on Amazon |
| MOTORAD | T36 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| SKP | SK10241 | 🇺🇸 US 🇨🇦 CA 🇲🇽 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 for the 2024 Lexus NX250 come from 4 brands — CALORSTAT, GATES, MOTORAD and 1 other brand.
Listed part numbers: CALORSTAT RC0047, GATES 31411 and MOTORAD T36, plus the other parts above.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR | TO3115202 | 🇺🇸 US | FWDNorth America Built Vehicle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TYC Popular | 624200 | 🇺🇸 US | FWD | View on Amazon |
| ACKOJA | A70010012 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AWDwith OE No. 1636031500 | View on Amazon |
| AGILITY | 6010458 | 🇺🇸 US | FWDSingle Fan Replacement | View on Amazon |
| TYC | 624440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits AWDFor vehicle built in Japanor AWD | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
5 Radiator Fan Assembly parts are listed for the 2024 Lexus NX250, from TYC, VARIOUS MFR, ACKOJA and 1 other brand. TYC 624200 carries the "Popular" badge.
Economy: 1 part, from VARIOUS MFR. A representative part number is VARIOUS MFR TO3115202.
The Standard Replacement section: 4 options from TYC, ACKOJA and AGILITY. TYC 624200 is listed in this group.
Part numbers include TYC 624200, VARIOUS MFR TO3115202 and ACKOJA A70010012, among others listed above.
Buying Cooling System Parts for a 2024 Lexus NX250
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 2.5L 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 Radiator .
Frequently Asked Questions
How many cooling system parts fit the 2024 Lexus NX250?
Our catalog currently lists 36 cooling system parts for the 2024 Lexus NX250 across 6 subcategories and 21 brands, covering the 2.5L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2024 Lexus NX250?
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 2024 Lexus NX250 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 2024 Lexus NX250?
Every part on this page is matched to the 2.5L 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 2024 Lexus NX250
Cooling System Parts for Other Lexus NX250 Years
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