2021 Nissan Armada 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 are listed for the 2021 Nissan Armada, from PRESTONE, PEAK, VALVOLINE and 3 other brands. PRESTONE AF3100 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, PRESTONE, PEAK and VALVOLINE supply 3 parts: the catalog's value-priced group. A representative part number is PRESTONE AF3100.

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 5 options from VALVOLINE, AISIN, BECK/ARNLEY and 2 other brands — built to original-equipment specification. VALVOLINE 861398 is listed in this group.

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

This group shows a single part: MAHLE / CLEVITE GS34113.

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

2 Coolant Reservoir Cap parts for the 2021 Nissan Armada come from 2 brands — GATES and MOTORAD.

This group includes GATES 31336 and MOTORAD T18R.

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

MOTORAD supplies both parts for the 2021 Nissan Armada.

Part numbers include 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

One part is listed for the 2021 Nissan Armada — AGILITY 8013595.

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

4 Radiator Cap parts are listed for the 2021 Nissan Armada, from CALORSTAT, GATES and MOTORAD.

Part numbers include CALORSTAT RC0193, CALORSTAT RC0027 and GATES 31561, among others listed above.

This table covers the Radiator Fan blades. Typical signs include chatter, streaks, or a skip at the top of the stroke. Confirm left and right lengths in the notes — they are often different. Read more

This group shows a single part: DORMAN 621808.

This table covers the Radiator Fan clutches. Typical signs include slip at highway speed, chatter on takeoff, or a pedal that stays low. Resurface or replace the flywheel with the clutch — a heat-checked flywheel wastes the new disc. Read more

5 Radiator Fan Clutch parts are listed for the 2021 Nissan Armada, from HAYDEN, BECK/ARNLEY, FOUR SEASONS and 2 other brands. HAYDEN 3330 carries the "Popular" badge.

Part numbers include HAYDEN 3330, BECK/ARNLEY 1300230 and FOUR SEASONS 46121, among others listed above.

This table covers the brackets that mount the Radiator Fan Clutch Bearing. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

One part is listed for the 2021 Nissan Armada — GATES FB1025.

This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

3 Radiator Hose parts for the 2021 Nissan Armada come from 2 brands — GATES and ACDELCO.

Part numbers include ACDELCO 22922M, GATES 24915 and GATES 52140.

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

10 Temperature Sender / Sensor parts are listed for the 2021 Nissan Armada, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, HOLSTEIN and 5 other brands. BECK/ARNLEY 1580606 carries the "Popular" badge.

Economy: 2 parts, from HOLSTEIN and STANDARD MOTOR PRODUCTS. A representative part number is HOLSTEIN 2CTS0026.

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: 7 options from BECK/ARNLEY, NTK, DELPHI and 4 other brands. BECK/ARNLEY 1580606 is listed in this group.

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

This group shows a single part: MOTORAD 1222176.

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 are listed for the 2021 Nissan Armada, from FEL-PRO and MAHLE / CLEVITE.

Listed part numbers: FEL-PRO 36132, FEL-PRO 36210 and MAHLE / CLEVITE C33628.

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

This group shows a single part: MOTORAD CH1012.

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

One part is listed for the 2021 Nissan Armada — FEL-PRO 36083.

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

10 Water Pump parts for the 2021 Nissan Armada come from 10 brands — ACKOJA, BECK/ARNLEY, FVP and 7 other brands. The "Popular" part is AISIN WPN705.

The Economy section: 5 options from ACKOJA, BECK/ARNLEY, FVP and 2 other brands. ACKOJA A3850017 is listed in this group.

Standard Replacement: 5 parts, from AISIN, GATES, ACDELCO and 2 other brands. A representative part number is AISIN WPN705.

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

3 Water Pump Gasket parts are listed for the 2021 Nissan Armada, from BECK/ARNLEY, FEL-PRO and VICTOR REINZ.

Part numbers include BECK/ARNLEY 0394197, FEL-PRO 36217 and VICTOR REINZ 712343000.