2021 Nissan Frontier 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

16 Coolant / Antifreeze parts for the 2021 Nissan Frontier come from 6 brands — PRESTONE, PEAK, VALVOLINE and 3 other brands. The "Popular" part is PRESTONE AF3100. 14 parts fit every engine; the other 2 are engine-specific.

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 PRESTONE, PEAK and VALVOLINE — the catalog's value-priced group. PRESTONE AF3100 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 ACB003.

This table covers the seals at the Coolant Hose / Pipe. 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

One part is listed for the 2021 Nissan Frontier — ELRING 524630.

This table covers the gaskets that seal the Coolant Pipe. 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 2021 Nissan Frontier — FEL-PRO 35942.

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

4 Coolant Reservoir parts are listed for the 2021 Nissan Frontier, from TECHPRO, GPD and VARIOUS MFR. All of them fit every engine offered in the 2021 Frontier.

Listed part numbers: GPD 2411237, TECHPRO NI3014134 and TECHPRO NI3014135, plus the other parts above.

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

3 Coolant Reservoir Cap parts are listed for the 2021 Nissan Frontier, from MOTORAD and GATES.

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 ST16R is listed in this group.

The Standard Replacement section: 2 options from GATES and MOTORAD. GATES 31336 is listed in this group.

This group includes MOTORAD ST16R, GATES 31336 and MOTORAD T16R.

This table covers the adapters used to pressure-test this cooling system. Read more

2 Cooling System Tester Adapter parts for the 2021 Nissan Frontier come from MOTORAD.

Listed part numbers: MOTORAD 3121 and MOTORAD 3122.

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

7 Radiator parts for the 2021 Nissan Frontier come from 5 brands — TECHPRO, UAC, GPD and 2 other brands. The "Popular" part is KOYORAD A13906.

The Economy section: 2 options from GPD and TECHPRO. GPD 13906C is listed in this group.

Standard Replacement: 4 parts, from UAC, KOYORAD and FVP. A representative part number is KOYORAD A13906.

1 further part sits outside the graded sections, with the same engine-level match.

Listed part numbers: KOYORAD A13906, GPD 13906C and TECHPRO NI3010259, plus the other 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

5 Radiator Cap parts for the 2021 Nissan Frontier come from 3 brands — CALORSTAT, GATES and MOTORAD.

Locking Replacement: 1 part, from CALORSTAT. A representative part number is CALORSTAT RC0212.

Standard Replacement: 3 parts, from CALORSTAT, GATES and MOTORAD. A representative part number is CALORSTAT RC0193.

1 further part sits outside the graded sections, with the same engine-level match.

This group includes CALORSTAT RC0212, CALORSTAT RC0193 and GATES 31561 and the remaining parts above.

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

One part is listed for the 2021 Nissan Frontier — UAC FA50995C.

This table covers the shrouds that duct air through the fan and radiator. Read more

This group shows a single part: DORMAN 621647.

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

11 Temperature Sender / Sensor parts for the 2021 Nissan Frontier come from 9 brands — GPD, STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and 6 other brands. The "Popular" part is BECK/ARNLEY 1580606. 3 parts fit every engine; the other 8 are engine-specific.

The Economy section: 4 options from GPD, STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS. GPD 1712547 is listed in this group.

Standard Replacement: 7 parts, from BECK/ARNLEY, NTK, FOUR SEASONS and 4 other brands. A representative part number is BECK/ARNLEY 1580606.

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

MOTORAD supplies both parts for the 2021 Nissan Frontier.

This group includes MOTORAD 427180 and MOTORAD 1341180.

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 for the 2021 Nissan Frontier come from 3 brands — AJUSA, FEL-PRO and MAHLE / CLEVITE.

Listed part numbers: AJUSA 01291700, FEL-PRO 35622 and MAHLE / CLEVITE C31681.

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

2 Thermostat Housing / Water Outlet parts are listed for the 2021 Nissan Frontier, from DORMAN and MOTORAD.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 9025222.

The Standard Replacement section: 1 option from MOTORAD. MOTORAD CH5222 is listed in this group.

Part numbers include DORMAN 9025222 and MOTORAD CH5222.

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

This group shows a single part: MAHLE / CLEVITE C31874.

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

4 Water Pump parts are listed for the 2021 Nissan Frontier, from FVP, US MOTOR WORKS and GMB.

Economy: 2 parts, from FVP and US MOTOR WORKS. A representative part number is FVP US8164.

The Standard Replacement section: 2 options from FVP and GMB. FVP 1502550 is listed in this group.

Listed part numbers: FVP US8164 and FVP 1502550, plus the other parts above.

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

This group shows a single part: AJUSA 01597100.