2015 Toyota 4RUNNER 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

18 Coolant / Antifreeze parts for the 2015 Toyota 4RUNNER come from 7 brands — PRESTONE, PEAK, VALVOLINE and 4 other brands. The "Popular" part is FVP MV5050GAL.

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, PEAK, PRESTONE 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, AISIN, BECK/ARNLEY, VALVOLINE and 2 other brands supply 7 parts: built to original-equipment specification. A representative part number is AISIN ACT002.

This table covers the hard pipes and extra hoses in the coolant circuit. Read more

3 Coolant Hose / Pipe parts for the 2015 Toyota 4RUNNER come from GATES.

This group includes GATES 12338, GATES 18364 and GATES 18336.

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

3 Coolant Hose / Pipe Seal parts are listed for the 2015 Toyota 4RUNNER, from APEX, FEL-PRO and VICTOR REINZ.

Listed part numbers: APEX AWO2184, FEL-PRO 35654 and VICTOR REINZ 411043200.

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

2 Coolant Reservoir parts are listed for the 2015 Toyota 4RUNNER, from LARES and TECHPRO.

This group includes LARES 37862 and TECHPRO TO3014125.

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 2015 Toyota 4RUNNER, from DORMAN and MOTORAD.

Listed part numbers: DORMAN 54249 and MOTORAD T168.

This table covers the Cooling Fan control modules. Read more

US MOTOR WORKS supplies the 3 Cooling Fan Control Module parts for the 2015 Toyota 4RUNNER.

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

2 Cooling System Tester Adapter parts for the 2015 Toyota 4RUNNER come from MOTORAD.

Part numbers include MOTORAD 3124 and MOTORAD 3125.

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 2015 Toyota 4RUNNER come from 9 brands — CSF, DENSO, AGILITY and 6 other brands. The "Popular" part is CSF 3698.

This group includes CSF 3698, DENSO 2219279 and AGILITY 8013251 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 2015 Toyota 4RUNNER come from 3 brands — MOTORAD, GATES and SKP.

In the Locking Replacement grade, MOTORAD supplies 1 part: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is MOTORAD ST37.

Standard Replacement: 3 parts, from GATES, MOTORAD and SKP. A representative part number is GATES 31412.

This group includes MOTORAD ST37, GATES 31412 and MOTORAD T37 and the remaining parts 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

4 Radiator Fan Blade parts are listed for the 2015 Toyota 4RUNNER, from AISIN, SKP, VARIOUS MFR and 1 other brand.

This group includes AISIN FNT007, SKP SK959901 and VARIOUS MFR TO3112145 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

9 Radiator Fan Clutch parts for the 2015 Toyota 4RUNNER come from 8 brands — GMB, AISIN, US MOTOR WORKS and 5 other brands. The "Popular" part is AISIN FCT086.

Part numbers include AISIN FCT086, US MOTOR WORKS 22411 and FOUR SEASONS 46106, among others listed above.

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

This group shows a single part: DORMAN 621658.

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

7 Radiator Hose parts are listed for the 2015 Toyota 4RUNNER, from GATES, CONTINENTAL, DAYCO and 1 other brand. GATES 23722 carries the "Popular" badge.

This group includes GATES 23722, GATES 23723 and ACDELCO 20553S and the remaining parts 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

18 Temperature Sender / Sensor parts for the 2015 Toyota 4RUNNER come from 16 brands — STANDARD MOTOR PRODUCTS, ACDELCO, GPD and 13 other brands. The "Popular" part is DELPHI TS10289.

The Economy section: 5 options from GPD, HOLSTEIN, ULTRA-POWER and 2 other brands. GPD 1712514 is listed in this group.

Standard Replacement: 13 parts, from STANDARD MOTOR PRODUCTS, ACDELCO, DELPHI and 8 other brands. A representative part number is DELPHI TS10289.

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

10 Thermostat parts are listed for the 2015 Toyota 4RUNNER, from MOTORAD, AUTOTECNICA, AISIN and 6 other brands. AISIN THT003 carries the "Popular" badge.

Economy: 1 part, from AUTOTECNICA. A representative part number is AUTOTECNICA TY0720316.

The Standard Replacement section: 9 options from MOTORAD, AISIN, ACKOJA and 5 other brands. AISIN THT003 is listed in this group.

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

14 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2015 Toyota 4RUNNER come from 5 brands — MAHLE / CLEVITE, FEL-PRO, APEX and 2 other brands. The "Popular" part is FEL-PRO 35767.

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

5 Thermostat Housing / Water Outlet parts are listed for the 2015 Toyota 4RUNNER, from SKP, FAMOUS BRAND, GATES and 2 other brands. SKP SK9025148 carries the "Popular" badge.

Economy: 2 parts, from SKP and FAMOUS BRAND. A representative part number is SKP SK9025148.

The Standard Replacement section: 2 options from GATES and MOTORAD. GATES CO35090 is listed in this group.

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

This group includes SKP SK9025148, FAMOUS BRAND 1601335238 and GATES CO35090 and the remaining 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

10 Water Pump parts are listed for the 2015 Toyota 4RUNNER, from ACKOJA, BECK/ARNLEY, FAMOUS BRAND and 7 other brands. ACDELCO 252892 carries the "Popular" badge.

Economy: 5 parts, from ACKOJA, BECK/ARNLEY, FAMOUS BRAND and 2 other brands. A representative part number is ACKOJA A7050022.

The Standard Replacement section: 5 options from ACDELCO, AISIN, DAYCO and 2 other brands. ACDELCO 252892 is listed in this group.

This table covers the Water Pump & Fan Clutch assemblies. Read more

3 Water Pump & Fan Clutch Assembly parts are listed for the 2015 Toyota 4RUNNER, from FVP, GMB and US MOTOR WORKS.

Part numbers include FVP 1700002 and US MOTOR WORKS MCK1071, among others listed 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

4 Water Pump Gasket parts for the 2015 Toyota 4RUNNER come from 4 brands — APEX, ELRING, FEL-PRO and 1 other brand.

This group includes APEX AWP3284, ELRING 794690 and FEL-PRO 36014 and the remaining parts above.