2018 Ford C-Max 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

20 Coolant / Antifreeze parts for the 2018 Ford C-Max come from 7 brands — PRESTONE, VALVOLINE, PEAK 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 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, VALVOLINE, MOTORCRAFT, PRESTONE and 3 other brands supply 10 parts: built to original-equipment specification. A representative part number is MOTORCRAFT VC13G.

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

3 Coolant Hose / Pipe parts for the 2018 Ford C-Max come from 2 brands — MOTORCRAFT and GATES.

Part numbers include GATES 51977, MOTORCRAFT KM5165 and MOTORCRAFT KM7967.

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 2018 Ford C-Max — MOTORCRAFT RG630.

This table covers the seals at the Coolant Hose Connector / Flange. 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 2018 Ford C-Max — ELRING 481720.

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

6 Coolant Reservoir parts are listed for the 2018 Ford C-Max, from AUTOTECNICA, DORMAN, GPD and 3 other brands. AUTOTECNICA FD0713622 carries the "Popular" badge.

Listed part numbers: AUTOTECNICA FD0713622, DORMAN 603382 and GPD 2411088, plus the other 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

6 Coolant Reservoir Cap parts are listed for the 2018 Ford C-Max, from MOTORAD, ÜRO PARTS, ACDELCO and 3 other brands. MOTORAD T57 carries the "Popular" badge.

Part numbers include MOTORAD T57, ÜRO PARTS 31368311 and ACDELCO 12R01, among others listed above.

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

This group shows a single part: MOTORAD 3043.

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

8 Radiator parts for the 2018 Ford C-Max come from 8 brands — DENSO, TYC, AGILITY and 5 other brands. The "Popular" part is DENSO 2219312.

This group includes DENSO 2219312, TYC 13331 and AGILITY 8013331 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

This group shows a single part: MOTORCRAFT RS531.

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

8 Radiator Fan Assembly parts are listed for the 2018 Ford C-Max, from SKP, ULTRA-POWER, GPD and 5 other brands. SKP SK623180 carries the "Popular" badge.

Economy: 3 parts, from SKP, ULTRA-POWER and GPD. A representative part number is SKP SK623180.

The Standard Replacement section: 5 options from AGILITY, FOUR SEASONS, MOTORCRAFT and 2 other brands. AGILITY 6010437 is listed in this group.

Listed part numbers: SKP SK623180, ULTRA-POWER 623180 and GPD 2811894, 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

9 Radiator Hose parts are listed for the 2018 Ford C-Max, from MOTORCRAFT, CONTINENTAL and GATES. MOTORCRAFT KM5240 carries the "Popular" badge.

Listed part numbers: MOTORCRAFT KM5240, MOTORCRAFT KM5277 and CONTINENTAL 67036, plus the other parts above.

This table covers the Radiator Mount bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

DORMAN supplies the 3 Radiator Mount Bushing parts for the 2018 Ford C-Max.

Part numbers include DORMAN 927285, DORMAN 927283 and DORMAN 927284.

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

12 Temperature Sender / Sensor parts for the 2018 Ford C-Max come from 11 brands — HOLSTEIN, GPD, UNITED MOTOR PRODUCTS and 8 other brands. The "Popular" part is HOLSTEIN 2CTS0039.

The Economy section: 5 options from HOLSTEIN, GPD, UNITED MOTOR PRODUCTS and 1 other brand. HOLSTEIN 2CTS0039 is listed in this group.

Standard Replacement: 7 parts, from MOTORCRAFT, WALKER PRODUCTS, DELPHI and 4 other brands. A representative part number is MOTORCRAFT DY1269.

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

17 Thermostat parts are listed for the 2018 Ford C-Max, from MOTORAD, DORMAN, AISIN and 2 other brands. MOTORAD 655160 carries the "Popular" badge.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 9021086.

The Heavy Duty section lists 2 options from MOTORAD — rated for severe service. MOTORAD 5655188 is listed in this group.

In the Performance grade, MOTORAD supplies 3 parts: engineered beyond original-equipment specification. A representative part number is MOTORAD 2655188.

The Premium section: 1 option from MOTORAD. MOTORAD 7655188 is listed in this group.

The Standard Replacement section: 10 options from MOTORAD, AISIN, FOUR SEASONS and 1 other brand. MOTORAD 655160 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

13 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2018 Ford C-Max come from 6 brands — FEL-PRO, MAHLE / CLEVITE, APEX and 3 other brands. The "Popular" part is FEL-PRO 35771.

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

3 Thermostat Housing / Water Outlet parts are listed for the 2018 Ford C-Max, from GATES and MOTORAD.

Part numbers include GATES CO35001, GATES CO35072 and MOTORAD CH2104.

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 2018 Ford C-Max, from SKP, MOTORCRAFT, ULTRA-POWER and 4 other brands. SKP SKEWP104 carries the "Popular" badge.

Economy: 3 parts, from SKP and ULTRA-POWER. A representative part number is SKP SKEWP104.

The Standard Replacement section: 5 options from MOTORCRAFT, FOUR SEASONS, GATES and 1 other brand. MOTORCRAFT PW529 is listed in this group.

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

Listed part numbers: SKP SKEWP104, SKP SK89074 and ULTRA-POWER PW529, 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

3 Water Pump Gasket parts for the 2018 Ford C-Max come from ELRING.

Listed part numbers: ELRING 634910, ELRING 823770 and ELRING 394280.

This table covers the Water Pump housings. Read more

This group shows a single part: MOTORAD CH2111.

This table covers the Water Pump Seal O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

3 Water Pump Seal / O-Ring parts are listed for the 2018 Ford C-Max, from APEX, FEL-PRO and MAHLE / CLEVITE.

Part numbers include APEX AWP3177, FEL-PRO 35772 and MAHLE / CLEVITE 72230.