2017 Toyota Prius C 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 2017 Toyota Prius C come from 7 brands — PRESTONE, PEAK, AISIN 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 3 options from FVP, PEAK and PRESTONE — the catalog's value-priced group. FVP MV5050GAL is listed in this group.

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, VALVOLINE, BECK/ARNLEY and 2 other brands supply 8 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

This group shows a single part: ACDELCO 16702M.

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

One part is listed for the 2017 Toyota Prius C — FEL-PRO 35729.

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

4 Coolant Reservoir Cap parts are listed for the 2017 Toyota Prius C, from CALORSTAT and MOTORAD.

Part numbers include CALORSTAT RC0170, CALORSTAT RC0145 and MOTORAD T122, among others listed above.

This table covers the Cooling Fan control modules. Read more

One part is listed for the 2017 Toyota Prius C — STANDARD MOTOR PRODUCTS CFM111.

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

2 Cooling System Tester Adapter parts for the 2017 Toyota Prius C 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 2017 Toyota Prius C come from 9 brands — CSF, KOYORAD, AGILITY and 6 other brands. The "Popular" part is CSF 3702.

Part numbers include CSF 3702, KOYORAD A13319 and AGILITY 8013319, among others listed 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 2017 Toyota Prius C 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.

Part numbers include GATES 31412, MOTORAD ST37 and CALORSTAT RC0040, among others listed above.

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

5 Radiator Fan Assembly parts are listed for the 2017 Toyota Prius C, from GPD, TECHPRO, ULTRA-POWER and 2 other brands. TYC 623150 carries the "Popular" badge.

Economy: 3 parts, from GPD, TECHPRO and ULTRA-POWER. A representative part number is GPD 2811896.

The Standard Replacement section: 2 options from TYC and AGILITY. TYC 623150 is listed in this group.

This group includes TYC 623150, GPD 2811896 and TECHPRO TO3115207 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

4 Radiator Hose parts are listed for the 2017 Toyota Prius C, from GATES, CONTINENTAL and DAYCO.

Part numbers include CONTINENTAL 66551, DAYCO 72943 and GATES 23944, 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

13 Temperature Sender / Sensor parts for the 2017 Toyota Prius C come from 13 brands — ULTRA-POWER, GPD, HOLSTEIN and 10 other brands. The "Popular" part is ULTRA-POWER 5S1616.

The Economy section: 4 options from ULTRA-POWER, GPD, HOLSTEIN and 1 other brand. ULTRA-POWER 5S1616 is listed in this group.

Standard Replacement: 9 parts, from DELPHI, DENSO, BECK/ARNLEY and 6 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

7 Thermostat parts are listed for the 2017 Toyota Prius C, from DORMAN, AISIN, MOTORAD and 4 other brands. AISIN THT006 carries the "Popular" badge.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 9025178.

The Standard Replacement section: 6 options from AISIN, MOTORAD, BECK/ARNLEY and 3 other brands. AISIN THT006 is listed in this group.

Listed part numbers: AISIN THT006, DORMAN 9025178 and MOTORAD 752180, plus the other parts 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

6 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2017 Toyota Prius C come from 4 brands — APEX, FEL-PRO, MAHLE / CLEVITE and 1 other brand. The "Popular" part is APEX AWO2047.

This group includes APEX AWO2047, FEL-PRO 35445 and APEX AWO2202 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

This group shows a single part: MAHLE / CLEVITE C33257.

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 2017 Toyota Prius C, from AISIN, DAYCO, BECK/ARNLEY and 5 other brands. AISIN WQT001 carries the "Popular" badge.

Economy: 3 parts, from BECK/ARNLEY, DORMAN and US MOTOR WORKS. A representative part number is BECK/ARNLEY 1312494.

The Standard Replacement section: 7 options from AISIN, DAYCO, GATES and 2 other brands. AISIN WQT001 is listed in this group.

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

5 Water Pump Gasket parts for the 2017 Toyota Prius C come from 3 brands — FEL-PRO, APEX and BECK/ARNLEY. The "Popular" part is FEL-PRO 36010.

This group includes FEL-PRO 36010, APEX AWP3289 and APEX AWP3290 and the remaining parts above.