2012 Nissan Pathfinder 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

17 Coolant / Antifreeze parts for the 2012 Nissan Pathfinder 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, BECK/ARNLEY, VALVOLINE, AISIN and 2 other brands supply 6 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

5 Coolant Hose / Pipe Seal parts are listed for the 2012 Nissan Pathfinder, from MAHLE / CLEVITE, AJUSA, ELRING and 1 other brand.

Part numbers include AJUSA 16020200, ELRING 524630 and MAHLE / CLEVITE C31682, among others listed above.

This table covers the Coolant Hose Connector flanges. Read more

This group shows a single part: FOUR SEASONS 85421.

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 2012 Nissan Pathfinder — MAHLE / CLEVITE C32523.

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 2012 Nissan Pathfinder, from MOTORAD and SKP. All of them fit every engine offered in the 2012 Pathfinder.

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: 1 option from MOTORAD. MOTORAD T16R is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

This group includes MOTORAD ST16R, MOTORAD T16R and SKP SK10264.

This table covers the Cooling Fan control modules. Read more

US MOTOR WORKS supplies the 3 Cooling Fan Control Module parts for the 2012 Nissan Pathfinder. All of them fit every engine offered in the 2012 Pathfinder.

This group includes US MOTOR WORKS 16749, US MOTOR WORKS 16789 and US MOTOR WORKS 16795.

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

4 Cooling System Tester Adapter parts for the 2012 Nissan Pathfinder come from 3 brands — MOTORAD, GATES and STANT. Every part fits both the 4.0L V6 and the 5.6L V8.

Part numbers include GATES 31428, MOTORAD 3121 and MOTORAD 3122, among others listed above.

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

9 Radiator parts for the 2012 Nissan Pathfinder come from 9 brands — KOYORAD, TYC, AGILITY and 6 other brands. The "Popular" part is KOYORAD A2807. Every part fits both the 4.0L V6 and the 5.6L V8.

This group includes KOYORAD A2807, TYC 2807 and AGILITY 8012807 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

5 Radiator Cap parts for the 2012 Nissan Pathfinder come from 4 brands — CALORSTAT, CSF, GATES and 1 other brand. The "Popular" part is CSF 4503. Every part fits both the 4.0L V6 and the 5.6L V8.

Listed part numbers: CSF 4503, CALORSTAT RC0193 and CALORSTAT RC0027, plus the other parts above.

This table covers the petcocks used to drain the radiator. Read more

One part is listed for the 2012 Nissan Pathfinder — DORMAN 61137.

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

7 Radiator Fan Blade parts are listed for the 2012 Nissan Pathfinder, from DORMAN, GPD, SKP and 2 other brands.

Listed part numbers: DORMAN 621345, DORMAN 621326 and GPD 2812319, plus the other 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

21 Radiator Fan Clutch parts for the 2012 Nissan Pathfinder come from 10 brands — FVP, BECK/ARNLEY, HAYDEN and 7 other brands. The "Popular" part is BECK/ARNLEY 1300197.

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 2012 Nissan Pathfinder come from 2 brands — DORMAN and GATES.

Listed part numbers: DORMAN 300816, DORMAN 300817 and GATES FB1013.

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

13 Radiator Hose parts are listed for the 2012 Nissan Pathfinder, from CONTINENTAL, DAYCO, GATES and 1 other brand. GATES 23252 carries the "Popular" badge.

Economy: 2 parts, from CONTINENTAL and DAYCO. A representative part number is CONTINENTAL 52412.

The Standard Replacement section: 8 options from GATES, ACDELCO, CONTINENTAL and 1 other brand. GATES 23252 is listed in this group.

3 ungrouped parts are not assigned to a grade, with the same engine-level match.

This table covers the Radiator Mount bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

3 Radiator Mount Bushing parts are listed for the 2012 Nissan Pathfinder, from DORMAN, SKP and ULTRA-POWER. All of them fit every engine offered in the 2012 Pathfinder.

Part numbers include DORMAN 926281 and SKP SK926281, 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

17 Temperature Sender / Sensor parts for the 2012 Nissan Pathfinder come from 15 brands — STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, FAMOUS BRAND and 12 other brands. The "Popular" part is BECK/ARNLEY 1580606. Every part fits both the 4.0L V6 and the 5.6L V8.

The Economy section: 6 options from FAMOUS BRAND, GPD, HOLSTEIN and 3 other brands. FAMOUS BRAND 180204199 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: 10 parts, from BECK/ARNLEY, BOSCH, HELLA and 7 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

27 Thermostat parts are listed for the 2012 Nissan Pathfinder, from MOTORAD, CALORSTAT, JAPANESE OE and 8 other brands. MOTORAD 5302170 carries the "Popular" badge. Economy, Heavy Duty, Premium and Standard Replacement are all represented, and Standard Replacement alone accounts for 21 parts.

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

21 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2012 Nissan Pathfinder come from 7 brands — FEL-PRO, MAHLE / CLEVITE, VICTOR REINZ and 4 other brands. The "Popular" part is FEL-PRO 35620.

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

6 Thermostat Housing / Water Outlet parts are listed for the 2012 Nissan Pathfinder, from MOTORAD, DORMAN, GPD and 2 other brands. DORMAN 9025900 carries the "Popular" badge.

Economy: 3 parts, from DORMAN, GPD and SKP. A representative part number is DORMAN 9025900.

The Standard Replacement section: 3 options from MOTORAD and GATES. MOTORAD CH6900 is listed in this group.

This group includes DORMAN 9025900, GPD 8241590 and SKP SK9025900 and the remaining parts above.

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 2012 Nissan Pathfinder come from 3 brands — APEX, FEL-PRO and AJUSA.

Part numbers include AJUSA 00851900, APEX AWO2081 and APEX AWO2164, among others listed 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

29 Water Pump parts are listed for the 2012 Nissan Pathfinder, from SKP, US MOTOR WORKS, GATES and 13 other brands. SKP SK1502320 carries the "Popular" badge. They are grouped as Economy and Standard Replacement, with Standard Replacement the largest group at 16 parts from GATES, GMB, ACDELCO and 6 other brands.

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

9 Water Pump Gasket parts for the 2012 Nissan Pathfinder come from 5 brands — FEL-PRO, APEX, MAHLE / CLEVITE and 2 other brands. The "Popular" part is FEL-PRO ES70894.

Listed part numbers: FEL-PRO ES70894, APEX AWP3237 and APEX AWP3229, plus the other parts above.