This page lists 41 cooling system parts for the 2021 Infiniti QX50, across 8 part types, covering the 2.0L L4 Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2021 Infiniti QX50, 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. Most of the listed parts are Coolant / Antifreeze (17 parts), Temperature Sender / Sensor (11 parts) and Radiator (5 parts). The other 5 part types cover the remaining 8 parts.
The 2021 Infiniti QX50 came with a single engine, the 2.0L L4 Turbocharged, and every part is verified against it.
20 brands supply cooling system parts for the 2021 Infiniti QX50, led by PRESTONE (6 parts), PEAK (4 parts) and BECK/ARNLEY (4 parts), plus 17 more brands. Quality grades include Standard Replacement, Economy and Premium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Infiniti QX50. 8 parts have it, including FVP MV5050GAL (Coolant / Antifreeze) and AGILITY 8013774 (Radiator). Each part number opens a page with 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 |
|---|---|---|---|---|
| FVP Popular | MV5050GAL | 🇺🇸 US 🇨🇦 CA | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular | AF3100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Blue Mountain Long LifeAll Vehicle | 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 | AF6310 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | MAX Original EquipmentAsian Blue | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | 861398 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Asian Vehicle Blue1 Gallon | View on Amazon |
| AISIN | ACB003 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueHOAT | View on Amazon |
| BECK/ARNLEY | 2521501 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Premium Extra Life BlueAsian | View on Amazon |
| BECK/ARNLEY | 2521001 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Premium Green1 Gallon | View on Amazon |
| PEAK | PAB1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OET Asian Extended Life Blue1 Gallon | View on Amazon |
| PENTOSIN | 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.
17 Coolant / Antifreeze parts are listed for the 2021 Infiniti QX50, from PRESTONE, PEAK, VALVOLINE and 4 other brands. FVP MV5050GAL carries the "Popular" badge.
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, FVP, PRESTONE, PEAK and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.
The Heavy Duty section lists 1 option from PRESTONE — rated for severe service. PRESTONE AFC12100 is listed in this group.
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 6 options from BECK/ARNLEY, VALVOLINE, AISIN and 2 other brands — built to original-equipment specification. VALVOLINE 861398 is listed in this group.
Intercooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TYC | 18157 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the intercoolers that cool turbo or supercharger charge air.
One part is listed for the 2021 Infiniti QX50 — TYC 18157.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 13774C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| TECHPRO | IN3010219 | 🇺🇸 US 🇨🇦 CA | Fits Autograph or Luxe or Proactive or Pure or Sensoryor EssentialFWD | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AGILITY Popular | 8013774 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| OSC | 13774 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| TYC | 13774 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Type 3 | 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.
5 Radiator parts are listed for the 2021 Infiniti QX50, from GPD, TECHPRO, AGILITY and 2 other brands. AGILITY 8013774 carries the "Popular" badge.
Economy: 2 parts, from GPD and TECHPRO. A representative part number is GPD 13774C.
The Standard Replacement section: 3 options from AGILITY, OSC and TYC. AGILITY 8013774 is listed in this group.
This group includes AGILITY 8013774, GPD 13774C and TECHPRO IN3010219 and the remaining parts above.
Radiator Fan Assembly
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO | IN3115117 | 🇺🇸 US 🇨🇦 CA | without Trans Oil Cooler | View on Amazon |
| TECHPRO | IN3115118 | 🇺🇸 US 🇨🇦 CA | with Trans Oil Cooler | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
2 Radiator Fan Assembly parts for the 2021 Infiniti QX50 come from TECHPRO.
Part numbers include TECHPRO IN3115117 and TECHPRO IN3115118.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 1712002 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine Blockwith 2 Terminal(s) | View on Amazon |
Full Service Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS | 21191031 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Service Kit | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular | 1580606 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Location - Thermostat Housing | View on Amazon |
| BOSCH Popular | 0280130129 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine Coolant Temperature Sensor | View on Amazon |
| HELLA Popular | 009107531 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 2-Pin ConnectorVertical Screw Fitting | View on Amazon |
| BECK/ARNLEY | 1581678 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Location - Engine Block | View on Amazon |
| FOUR SEASONS | 36448 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| HELLA | 009107441 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 2-Pin ConnectorBolted | View on Amazon |
| STANDARD MOTOR PRODUCTS | TX318 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Located on Radiator | View on Amazon |
| WALKER PRODUCTS | 2111031 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only | View on Amazon |
| WALKER PRODUCTS | 2112037 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only | View on Amazon |
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.
11 Temperature Sender / Sensor parts are listed for the 2021 Infiniti QX50, from WALKER PRODUCTS, BECK/ARNLEY, HELLA and 4 other brands. BECK/ARNLEY 1580606 carries the "Popular" badge.
Economy: 1 part, from GPD. A representative part number is GPD 1712002.
In the Full Service Kit grade, WALKER PRODUCTS supplies 1 part: grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. A representative part number is WALKER PRODUCTS 21191031.
The Standard Replacement section: 9 options from BECK/ARNLEY, HELLA, WALKER PRODUCTS and 3 other brands. BECK/ARNLEY 1580606 is listed in this group.
Thermostat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | 1327000 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Control ValveIncludes Housings, Seal, and Control Module | View on Amazon |
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.
This group shows a single part: MOTORAD 1327000.
Water Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | 1502580 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GMB | 1502580 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| US MOTOR WORKS | US8262 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Autograph or Essential or Luxe Model or Pure Model or Sensory | View on Amazon |
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.
3 Water Pump parts for the 2021 Infiniti QX50 come from 3 brands — FVP, GMB and US MOTOR WORKS.
Part numbers include FVP 1502580 and US MOTOR WORKS US8262, among others listed above.
Water Pump Housing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | CH3217 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Water Pump housings.
One part is listed for the 2021 Infiniti QX50 — MOTORAD CH3217.
Buying Cooling System Parts for a 2021 Infiniti QX50
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 2.0L L4 Turbocharged 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 Temperature Sender / Sensor .
Frequently Asked Questions
How many cooling system parts fit the 2021 Infiniti QX50?
Our catalog currently lists 41 cooling system parts for the 2021 Infiniti QX50 across 8 subcategories and 20 brands, covering the 2.0L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2021 Infiniti QX50?
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 2021 Infiniti QX50 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 2021 Infiniti QX50?
Every part on this page is matched to the 2.0L L4 Turbocharged 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 2021 Infiniti QX50
Cooling System Parts for Other Infiniti QX50 Years
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