2015 Toyota Sienna 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 Sienna 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 Sienna come from 3 brands — ACDELCO, CONTINENTAL and GATES.

Listed part numbers: ACDELCO 14206S, CONTINENTAL 63602 and GATES 20333.

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

One part is listed for the 2015 Toyota Sienna — TECHPRO LX3014110.

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

One part is listed for the 2015 Toyota Sienna — MOTORAD T136.

This table covers the Cooling Fan control modules. Read more

5 Cooling Fan Control Module parts are listed for the 2015 Toyota Sienna, from STANDARD MOTOR PRODUCTS, BECK/ARNLEY, GATES and 1 other brand. STANDARD MOTOR PRODUCTS RY1897 carries the "Popular" badge.

Listed part numbers: STANDARD MOTOR PRODUCTS RY1897, BECK/ARNLEY 2030274 and GATES FCM111, plus the other parts above.

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

3 Cooling System Tester Adapter parts for the 2015 Toyota Sienna come from 2 brands — MOTORAD and GATES.

Listed part numbers: 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 for the 2015 Toyota Sienna come from 12 brands — DENSO, KOYORAD, AGILITY and 9 other brands. The "Popular" part is DENSO 2213167.

The Economy section: 2 options from GPD and TECHPRO. GPD 13116C is listed in this group.

Standard Replacement: 18 parts, from DENSO, KOYORAD, AGILITY and 7 other brands. A representative part number is DENSO 2213167.

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 2015 Toyota Sienna come from 4 brands — MOTORAD, GATES, CALORSTAT and 1 other brand. The "Popular" part is GATES 31412.

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: 4 parts, from GATES, CALORSTAT, MOTORAD and 1 other brand. A representative part number is GATES 31412.

Listed part numbers: GATES 31412, MOTORAD ST37 and CALORSTAT RC0040, plus the other parts above.

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

9 Radiator Fan Assembly parts are listed for the 2015 Toyota Sienna, from AGILITY, VDO / CONTINENTAL, DORMAN and 4 other brands. DORMAN 620581 carries the "Popular" badge.

Economy: 3 parts, from DORMAN, GPD and SKP. A representative part number is DORMAN 620581.

The Standard Replacement section: 6 options from AGILITY, VDO / CONTINENTAL, TYC and 1 other brand. TYC 622670 is listed in this group.

Part numbers include DORMAN 620581, GPD 2811914 and SKP SK622670, among others listed 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

8 Radiator Hose parts are listed for the 2015 Toyota Sienna, from GATES, ACDELCO, CONTINENTAL and 1 other brand. GATES 21508 carries the "Popular" badge.

Part numbers include GATES 21508, GATES 23804 and ACDELCO 24177L, 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

18 Temperature Sender / Sensor parts for the 2015 Toyota Sienna come from 16 brands — STANDARD MOTOR PRODUCTS, ACDELCO, ULTRA-POWER and 13 other brands. The "Popular" part is ULTRA-POWER 5S1616.

The Economy section: 5 options from ULTRA-POWER, GPD, HOLSTEIN and 2 other brands. ULTRA-POWER 5S1616 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

21 Thermostat parts are listed for the 2015 Toyota Sienna, from MOTORAD, FACET, CALORSTAT and 6 other brands. MOTORAD 5281180 carries the "Popular" badge.

The Heavy Duty section: 2 options from MOTORAD. MOTORAD 5281180 is listed in this group.

The Premium section: 2 options from MOTORAD. MOTORAD 7281180 is listed in this group.

The Standard Replacement section: 17 options from MOTORAD, FACET, CALORSTAT and 6 other brands. AISIN THT019 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

19 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2015 Toyota Sienna come from 8 brands — VICTOR REINZ, FEL-PRO, APEX and 5 other brands. The "Popular" part is AISIN THP101.

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

7 Thermostat Housing / Water Outlet parts are listed for the 2015 Toyota Sienna, from FOUR SEASONS, MOTORAD, DORMAN and 2 other brands. DORMAN 9025929 carries the "Popular" badge.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 9025929.

The Standard Replacement section: 6 options from FOUR SEASONS, MOTORAD, BECK/ARNLEY and 1 other brand. BECK/ARNLEY 1470079 is listed in this group.

This group includes DORMAN 9025929, BECK/ARNLEY 1470079 and FOUR SEASONS 85355 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

2 Water Inlet Gasket parts for the 2015 Toyota Sienna come from 2 brands — APEX and FEL-PRO.

This group includes APEX AWO2237 and FEL-PRO 35801.

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

9 Water Pump parts are listed for the 2015 Toyota Sienna, from US MOTOR WORKS, BECK/ARNLEY, FVP and 6 other brands. US MOTOR WORKS US6047 carries the "Popular" badge.

Economy: 4 parts, from US MOTOR WORKS, BECK/ARNLEY, FVP and 1 other brand. A representative part number is US MOTOR WORKS US6047.

The Standard Replacement section: 5 options from AISIN, ACDELCO, DAYCO and 2 other brands. AISIN WPT803 is listed in this group.

Listed part numbers: US MOTOR WORKS US6047 and BECK/ARNLEY 1312316, plus the other parts 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

8 Water Pump Gasket parts for the 2015 Toyota Sienna come from 6 brands — FEL-PRO, APEX, BECK/ARNLEY and 3 other brands. The "Popular" part is FEL-PRO ES73200.

Listed part numbers: FEL-PRO ES73200, FEL-PRO ES73114 and APEX AWP3196, plus the other parts above.