2017 Toyota Prius 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 2017 Toyota Prius, from PRESTONE, PEAK, AISIN and 4 other brands. FVP MV5050GAL carries the "Popular" badge.

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 and PRESTONE supply 3 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

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 8 options from AISIN, VALVOLINE, BECK/ARNLEY 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 2017 Toyota Prius, from GATES and ACDELCO.

Listed part numbers: ACDELCO 18429L, GATES 51596 and GATES 23773.

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

5 Coolant Reservoir parts for the 2017 Toyota Prius come from 3 brands — TECHPRO, VARIOUS MFR and DORMAN. The "Popular" part is TECHPRO TO3014140.

This group includes TECHPRO TO3014140, DORMAN 603752 and TECHPRO TO3014139 and the remaining parts above.

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 2017 Toyota Prius come from 2 brands — CALORSTAT and MOTORAD.

Part numbers include CALORSTAT RC0145 and MOTORAD T51.

This table covers the Inverter coolers. Typical signs include overheated fluid, a leak at the fittings, or mixed fluids in the reservoir. Flush the lines when you replace a cooler. Read more

This group shows a single part: MOTORAD TA9225.

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

11 Radiator parts are listed for the 2017 Toyota Prius, from GPD, TECHPRO, CSF and 7 other brands. CSF 3784 carries the "Popular" badge.

Economy: 3 parts, from GPD and TECHPRO. A representative part number is GPD 13591C.

The Standard Replacement section: 8 options from CSF, KOYORAD, TYC and 5 other brands. CSF 3784 is listed in this group.

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

5 Radiator Fan Assembly parts for the 2017 Toyota Prius come from 5 brands — SKP, TECHPRO, AGILITY and 2 other brands. The "Popular" part is AGILITY 6010306.

The Economy section: 2 options from SKP and TECHPRO. SKP SK623690 is listed in this group.

Standard Replacement: 3 parts, from AGILITY, TYC and UAC. A representative part number is AGILITY 6010306.

This group includes AGILITY 6010306, SKP SK623690 and TECHPRO TO3115191 and the remaining 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

9 Radiator Hose parts for the 2017 Toyota Prius come from 3 brands — CONTINENTAL, ACDELCO and GATES. The "Popular" part is CONTINENTAL 62765.

This group includes CONTINENTAL 62765, CONTINENTAL 66029 and ACDELCO 20560S 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

20 Temperature Sender / Sensor parts are listed for the 2017 Toyota Prius, from STANDARD MOTOR PRODUCTS, DELPHI, BECK/ARNLEY and 11 other brands. ULTRA-POWER 5S1616 carries the "Popular" badge.

Economy: 4 parts, from ULTRA-POWER, GPD, HOLSTEIN and 1 other brand. A representative part number is ULTRA-POWER 5S1616.

The Standard Replacement section: 16 options from STANDARD MOTOR PRODUCTS, DELPHI, BECK/ARNLEY and 7 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

9 Thermostat parts for the 2017 Toyota Prius come from 9 brands — SKP, AISIN, MOTORAD and 6 other brands. The "Popular" part is AISIN THT017.

The Economy section: 1 option from SKP. SKP SK9025138 is listed in this group.

Standard Replacement: 8 parts, from AISIN, MOTORAD, ACKOJA and 5 other brands. A representative part number is AISIN THT017.

Part numbers include AISIN THT017, SKP SK9025138 and MOTORAD 700180, among others listed 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

9 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2017 Toyota Prius, from FEL-PRO, APEX, MAHLE / CLEVITE and 2 other brands. APEX AWO2047 carries the "Popular" badge.

Part numbers include APEX AWO2047, FEL-PRO 35445 and APEX AWO2294, among others listed above.

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

This group shows a single part: MOTORAD CH2109.

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 2017 Toyota Prius — ELRING 775210.

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

8 Water Pump parts for the 2017 Toyota Prius come from 7 brands — AISIN, BECK/ARNLEY, SKP and 4 other brands. The "Popular" part is AISIN WQT003.

The Economy section: 3 options from BECK/ARNLEY, SKP and US MOTOR WORKS. BECK/ARNLEY 1312561 is listed in this group.

Standard Replacement: 5 parts, from AISIN, FOUR SEASONS, GATES and 1 other brand. A representative part number is AISIN WQT003.

Listed part numbers: AISIN WQT003, BECK/ARNLEY 1312561 and SKP SKWPT205, 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

4 Water Pump Gasket parts are listed for the 2017 Toyota Prius, from APEX, ELRING, FEL-PRO and 1 other brand.

This group includes APEX AWP3290, ELRING 699690 and FEL-PRO 36010 and the remaining parts above.