2005 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

17 Coolant / Antifreeze parts are listed for the 2005 Toyota 4RUNNER, from PRESTONE, PEAK, VALVOLINE and 4 other brands. FVP MV5050GAL carries the "Popular" badge. All of them fit every engine offered in the 2005 4RUNNER.

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, FVP, PEAK, PRESTONE and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

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 6 options from BECK/ARNLEY, AISIN, VALVOLINE and 2 other brands — built to original-equipment specification. AISIN ACT002 is listed in this group.

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

3 Coolant Hose / Pipe parts are listed for the 2005 Toyota 4RUNNER, from ACDELCO, DAYCO and GATES.

Part numbers include ACDELCO 14019S, DAYCO 86503 and GATES 18201.

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

2 Coolant Hose / Pipe Seal parts for the 2005 Toyota 4RUNNER come from 2 brands — MAHLE / CLEVITE and VICTOR REINZ.

Listed part numbers: MAHLE / CLEVITE C31701 and VICTOR REINZ 711195600.

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

3 Coolant Reservoir parts for the 2005 Toyota 4RUNNER come from 3 brands — DORMAN, GPD and TECHPRO. Every part fits both the 4.0L V6 and the 4.7L V8.

Listed part numbers: DORMAN 603425, GPD 2411225 and TECHPRO LX3014105.

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 2005 Toyota 4RUNNER come from 2 brands — DORMAN and MOTORAD. Every part fits both the 4.0L V6 and the 4.7L V8.

This group includes DORMAN 54249 and MOTORAD T168.

This table covers the Cooling Fan control modules. Read more

3 Cooling Fan Control Module parts for the 2005 Toyota 4RUNNER come from US MOTOR WORKS. Every part fits both the 4.0L V6 and the 4.7L V8.

Part numbers include 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

3 Cooling System Tester Adapter parts are listed for the 2005 Toyota 4RUNNER, from MOTORAD and GATES. All of them fit every engine offered in the 2005 4RUNNER.

Part numbers include GATES 31409, 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

20 Radiator parts are listed for the 2005 Toyota 4RUNNER, from CSF, DENSO, KOYORAD and 7 other brands. CSF 3697 carries the "Popular" badge.

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

7 Radiator Cap parts are listed for the 2005 Toyota 4RUNNER, from MOTORAD, CALORSTAT, CSF and 2 other brands. CSF 4514 carries the "Popular" badge. 5 parts fit every engine; the other 2 are engine-specific.

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 ST37 is listed in this group.

The Standard Replacement section: 6 options from CALORSTAT, CSF, GATES and 2 other brands. CSF 4514 is listed in this group.

This group includes CSF 4514, MOTORAD ST37 and GATES 31412 and the remaining parts above.

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

This group shows a single part: DORMAN 61136.

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

This group shows a single part: UAC FA50912C.

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

8 Radiator Fan Blade parts for the 2005 Toyota 4RUNNER come from 5 brands — AISIN, SKP, GPD and 2 other brands. The "Popular" part is AISIN FNT007. 1 part fits every engine; the other 7 are engine-specific.

This group includes AISIN FNT007, AISIN FNT014 and AISIN FNT016 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

20 Radiator Fan Clutch parts are listed for the 2005 Toyota 4RUNNER, from FVP, AISIN, BECK/ARNLEY and 8 other brands. AISIN FCT072 carries the "Popular" badge.

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

6 Radiator Fan Clutch Bearing Bracket parts are listed for the 2005 Toyota 4RUNNER, from AISIN, SKP, DORMAN and 3 other brands. AISIN FBT002 carries the "Popular" badge.

Listed part numbers: AISIN FBT002, SKP SK300804 and DORMAN 300804, plus the other parts above.

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

18 Radiator Hose parts for the 2005 Toyota 4RUNNER come from 4 brands — CONTINENTAL, DAYCO, GATES and 1 other brand. The "Popular" part is GATES 22845.

The Economy section: 2 options from CONTINENTAL and DAYCO. CONTINENTAL 52017 is listed in this group.

Standard Replacement: 8 parts, from GATES, ACDELCO, CONTINENTAL and 1 other brand. A representative part number is GATES 22845.

8 further parts sit outside the graded sections, with the same engine-level match.

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

22 Temperature Sender / Sensor parts are listed for the 2005 Toyota 4RUNNER, from STANDARD MOTOR PRODUCTS, GPD, UNITED MOTOR PRODUCTS and 13 other brands. ULTRA-POWER 5S1616 carries the "Popular" badge. All of them fit every engine offered in the 2005 4RUNNER.

Economy: 8 parts, from GPD, UNITED MOTOR PRODUCTS, ULTRA-POWER and 3 other brands. A representative part number is ULTRA-POWER 5S1616.

The Standard Replacement section: 14 options from STANDARD MOTOR PRODUCTS, ACDELCO, DELPHI and 8 other brands. DELPHI TS10289 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

25 Thermostat parts for the 2005 Toyota 4RUNNER come from 11 brands — MOTORAD, AISIN, GATES and 8 other brands. The "Popular" part is AISIN THT003.

The Economy section: 1 option from AUTOTECNICA. AUTOTECNICA TY0720316 is listed in this group.

Heavy Duty: 2 parts, from MOTORAD. A representative part number is MOTORAD 5302170.

Premium: 2 parts, from MOTORAD. A representative part number is MOTORAD 7302170.

Standard Replacement: 20 parts, from MOTORAD, AISIN, GATES and 7 other brands. A representative part number is AISIN THT003.

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

29 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2005 Toyota 4RUNNER, from FEL-PRO, APEX, VICTOR REINZ and 8 other brands. AISIN THP108 carries the "Popular" badge. The notes list position, dimensions and spec qualifiers wherever the manufacturer distinguishes between variants.

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

13 Thermostat Housing / Water Outlet parts for the 2005 Toyota 4RUNNER come from 9 brands — MOTORAD, FAMOUS BRAND, GPD and 6 other brands. The "Popular" part is DORMAN 9025060.

The Economy section: 6 options from FAMOUS BRAND, GPD, DORMAN and 1 other brand. DORMAN 9025060 is listed in this group.

Standard Replacement: 5 parts, from MOTORAD, BECK/ARNLEY and FOUR SEASONS. A representative part number is BECK/ARNLEY 1470078.

2 further parts sit outside the graded sections, with the same engine-level match.

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 2005 Toyota 4RUNNER — MAHLE / CLEVITE C31699.

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

18 Water Pump parts for the 2005 Toyota 4RUNNER come from 9 brands — GMB, BECK/ARNLEY, FVP and 6 other brands. The "Popular" part is AISIN WPT136.

The Economy section: 8 options from BECK/ARNLEY, FVP, SKP and 1 other brand. BECK/ARNLEY 1312315 is listed in this group.

Standard Replacement: 10 parts, from GMB, AISIN, GATES and 2 other brands. A representative part number is AISIN WPT136.

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

3 Water Pump & Fan Clutch Assembly parts for the 2005 Toyota 4RUNNER come from 3 brands — FVP, GMB and US MOTOR WORKS.

Part numbers include FVP 1700001 and US MOTOR WORKS MCK1061, 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

11 Water Pump Gasket parts are listed for the 2005 Toyota 4RUNNER, from APEX, FEL-PRO, BECK/ARNLEY and 2 other brands. APEX AWP3111 carries the "Popular" badge.