19 Cooling system parts are listed for the 2015 Acura TLX, in 3 part types, covering both the 2.4L L4 and the 3.5L V6. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2015 Acura TLX, 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. All 19 listed parts are Coolant / Antifreeze (16 parts), Coolant Reservoir (2 parts) and Coolant Reservoir Cap (1 part).
The 2015 Acura TLX was sold with both the 2.4L L4 and the 3.5L V6. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2015 Acura TLX cooling system parts are PRESTONE (5 parts), PEAK (4 parts) and VALVOLINE (2 parts), plus 7 more brands. Quality grades include Standard Replacement, Premium and Economy.
4 parts on this 2015 Acura TLX page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and PRESTONE AF3100 (Coolant / Antifreeze). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: 2.4L L4 | AF3055 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: 2.4L L4 | MV5050GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular Fits: 2.4L L4 | AF3100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK Fits: 2.4L L4 | BQA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE Fits: 2.4L L4 | 719009 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: 2.4L L4 | AF2100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles10yr/300k mi | View on Amazon |
| PEAK Fits: 2.4L L4 | PKP1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK Fits: 2.4L L4 | PXA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE Fits: 2.4L L4 | AF6310 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | MAX Original EquipmentAsian Blue | View on Amazon |
| PRESTONE Fits: 2.4L L4 | AFMAX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 2.4L L4 | 861398 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Asian Vehicle Blue1 Gallon | View on Amazon |
| AISIN Fits: 2.4L L4 | ACB003 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueHOAT | View on Amazon |
| BECK/ARNLEY Fits: 2.4L L4 | 2521501 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Premium Extra Life BlueAsian | View on Amazon |
| BECK/ARNLEY Fits: 2.4L L4 | 2521001 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Premium Green1 Gallon | View on Amazon |
| PEAK Fits: 2.4L L4 | PAB1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OET Asian Extended Life Blue1 Gallon | View on Amazon |
| PENTOSIN Fits: 2.4L L4 | 8115207 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pentofrost A31 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 2015 Acura TLX come from 7 brands — PRESTONE, PEAK, VALVOLINE and 4 other brands. The "Popular" part is FVP MV5050GAL.
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, PRESTONE, PEAK and 1 other brand — the catalog's value-priced group. FVP MV5050GAL 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, VALVOLINE, AISIN and 2 other brands supply 6 parts: built to original-equipment specification. A representative part number is VALVOLINE 861398.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO Fits: 2.4L L4 | AC3014114 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Cap | View on Amazon |
| VARIOUS MFR Fits: 2.4L L4 | AC3014114 | 🇺🇸 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 2015 Acura TLX, from TECHPRO and VARIOUS MFR.
Listed part numbers: TECHPRO AC3014114, plus the other parts above.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 2.4L L4 | T107 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | 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 2015 Acura TLX — MOTORAD T107.
Buying Cooling System Parts for a 2015 Acura TLX
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.
- Match the engine first. Every cooling system part here is engine-specific; each row shows which engine(s) it fits.
- 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 Coolant Reservoir .
Frequently Asked Questions
How many cooling system parts fit the 2015 Acura TLX?
Our catalog currently lists 19 cooling system parts for the 2015 Acura TLX across 3 subcategories and 10 brands, covering both the 2.4L L4 and the 3.5L V6. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 2015 Acura TLX engines?
Yes. Every cooling system part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of cooling system problems on a 2015 Acura TLX?
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 2015 Acura TLX 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 2015 Acura TLX?
First match the engine — each row shows which engine(s) the part fits. 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 2015 Acura TLX
Cooling System Parts for Other Acura TLX Years
Switch vehicle or jump to a subcategory
Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.