2021 Nissan NV2500 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 NV2500 come from 7 brands — PRESTONE, PEAK, VALVOLINE and 4 other brands. The "Popular" part is FVP MV5050GAL. Every part fits both the 4.0L V6 and the 5.6L V8.

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 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, VALVOLINE, AISIN, BECK/ARNLEY and 2 other brands supply 5 parts: built to original-equipment specification. A representative part number is VALVOLINE 861398.

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 NV2500 — 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 are listed for the 2021 Nissan NV2500, from GATES and MOTORAD. All of them fit every engine offered in the 2021 NV2500.

Listed part numbers: GATES 31336 and MOTORAD T18R.

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

2 Cooling System Tester Adapter parts for the 2021 Nissan NV2500 come from MOTORAD. Every part fits both the 4.0L V6 and the 5.6L V8.

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

7 Radiator parts for the 2021 Nissan NV2500 come from 7 brands — GPD, TECHPRO, TYC and 4 other brands. The "Popular" part is TYC 13335. 1 part fits every engine; the other 6 are engine-specific.

The Economy section: 2 options from GPD and TECHPRO. GPD 13335C is listed in this group.

Standard Replacement: 5 parts, from TYC, DENSO, FVP and 2 other brands. A representative part number is TYC 13335.

This group includes TYC 13335, GPD 13335C and TECHPRO NI3010224 and the remaining 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

4 Radiator Cap parts for the 2021 Nissan NV2500 come from 3 brands — CALORSTAT, GATES and MOTORAD. 2 parts fit every engine; the other 2 are engine-specific.

Part numbers include CALORSTAT RC0193, CALORSTAT RC0027 and GATES 31561, among others listed 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 NV2500 — GPD 2812015.

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

4 Radiator Fan Blade parts are listed for the 2021 Nissan NV2500, from DORMAN, GPD, SKP and 1 other brand.

This group includes DORMAN 621345, GPD 2812319 and SKP SK621345 and the remaining parts above.

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

11 Radiator Fan Clutch parts for the 2021 Nissan NV2500 come from 7 brands — HAYDEN, US MOTOR WORKS, FOUR SEASONS and 4 other brands. The "Popular" part is HAYDEN 6601. 4 parts fit every engine; the other 7 are engine-specific.

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

3 Radiator Fan Clutch Bearing Bracket parts for the 2021 Nissan NV2500 come from 2 brands — GATES and DORMAN.

This group includes DORMAN 300816, GATES FB1013 and 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

4 Radiator Hose parts are listed for the 2021 Nissan NV2500, from CONTINENTAL and GATES.

Part numbers include CONTINENTAL 66261, CONTINENTAL 67019 and GATES 23970, among others listed above.

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

14 Temperature Sender / Sensor parts for the 2021 Nissan NV2500 come from 10 brands — STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, DELPHI and 7 other brands. The "Popular" part is BECK/ARNLEY 1580606. 6 parts fit every engine; the other 8 are engine-specific.

The Economy section: 4 options from GPD, HOLSTEIN, STANDARD MOTOR PRODUCTS and 1 other brand. GPD 1712547 is listed in this group.

The Full Service Kit section lists 1 option from WALKER PRODUCTS — grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. WALKER PRODUCTS 21191031 is listed in this group.

Standard Replacement: 9 parts, from DELPHI, FOUR SEASONS, BECK/ARNLEY 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

9 Thermostat parts are listed for the 2021 Nissan NV2500, from MOTORAD, AUTOTECNICA, DORMAN and 5 other brands. AISIN THN007 carries the "Popular" badge. 1 part fits every engine; the other 8 are engine-specific.

Economy: 2 parts, from AUTOTECNICA and DORMAN. A representative part number is AUTOTECNICA NI0720416.

The Standard Replacement section: 7 options from MOTORAD, AISIN, BECK/ARNLEY and 3 other brands. AISIN THN007 is listed in this group.

This group includes AISIN THN007, AUTOTECNICA NI0720416 and DORMAN 9025249 and the remaining parts above.

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

10 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2021 Nissan NV2500 come from 4 brands — FEL-PRO, MAHLE / CLEVITE, APEX and 1 other brand. The "Popular" part is FEL-PRO 35620.

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

One part is listed for the 2021 Nissan NV2500 — 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

6 Water Inlet Gasket parts for the 2021 Nissan NV2500 come from 3 brands — APEX, FEL-PRO and AJUSA.

Listed part numbers: AJUSA 00851900, APEX AWO2081 and APEX AWO2164, plus the other parts above.

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

16 Water Pump parts are listed for the 2021 Nissan NV2500, from BECK/ARNLEY, FVP, US MOTOR WORKS and 6 other brands. ACDELCO 252831 carries the "Popular" badge.

Economy: 8 parts, from BECK/ARNLEY, FVP, US MOTOR WORKS and 2 other brands. A representative part number is ACKOJA A3850017.

The Standard Replacement section: 8 options from ACDELCO, GATES, DAYCO and 1 other brand. ACDELCO 252831 is listed in this group.

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

6 Water Pump Gasket parts for the 2021 Nissan NV2500 come from 4 brands — APEX, FEL-PRO, BECK/ARNLEY and 1 other brand.

This group includes APEX AWP3237, APEX AWP3229 and BECK/ARNLEY 0394127 and the remaining parts above.