2014 Kia Optima 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 2014 Kia Optima come from 6 brands — PRESTONE, VALVOLINE, PEAK and 3 other brands. The "Popular" part is FVP MV5050GAL. 13 parts fit every engine; the other 5 are engine-specific.

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, PRESTONE, PEAK and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.

In the Heavy Duty grade, VALVOLINE supplies 1 part: rated for severe service. A representative part number is VALVOLINE ZXG051.

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, BECK/ARNLEY, AISIN and 1 other brand supply 7 parts: built to original-equipment specification. A representative part number is VALVOLINE 861398.

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

This group shows a single part: HYUNDAI 254802G820.

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 are listed for the 2014 Kia Optima, from HYUNDAI and VICTOR REINZ. 1 part fits every engine; the other 1 is engine-specific.

Listed part numbers: HYUNDAI 2546221000 and VICTOR REINZ 151118601.

This table covers the Coolant Hose Connector flanges. Read more

This group shows a single part: ACKOJA A520753.

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

2 Coolant Reservoir parts are listed for the 2014 Kia Optima, from LARES and TECHPRO. 1 part fits every engine; the other 1 is engine-specific.

This group includes LARES 37410 and TECHPRO HY3014110.

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

MOTORAD supplies the 3 Coolant Reservoir Cap parts for the 2014 Kia Optima. 1 part fits 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 ST13R is listed in this group.

The Standard Replacement section: 1 option from MOTORAD. MOTORAD T13R is listed in this group.

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

This group includes MOTORAD ST13R, MOTORAD T13R and MOTORAD T142.

This table covers the Cooling Fan control modules. Read more

6 Cooling Fan Control Module parts are listed for the 2014 Kia Optima, from US MOTOR WORKS, AUTOTECNICA and GATES. 2 parts fit every engine; the other 4 are engine-specific.

Part numbers include AUTOTECNICA KI0721547, GATES FCM145 and US MOTOR WORKS 16749, among others listed above.

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

4 Cooling System Tester Adapter parts for the 2014 Kia Optima come from 3 brands — MOTORAD, GATES and STANT. Every part fits all 3 engine options (2.0L L4 Turbocharged, 2.4L L4 and 2.4L L4 ELECTRIC/GAS).

Part numbers include GATES 31428, MOTORAD 3121 and MOTORAD 3122, among others listed above.

This table covers the intercoolers that cool turbo or supercharger charge air. Read more

7 Intercooler parts for the 2014 Kia Optima come from 5 brands — TYC, TECHPRO, CSF and 2 other brands. The "Popular" part is TYC 18054.

Part numbers include TYC 18054, CSF 6047 and GPD 2711354, among others listed above.

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

9 Inverter Cooler parts are listed for the 2014 Kia Optima, from CSF, DORMAN, DENSO and 5 other brands. CSF 3678 carries the "Popular" badge.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 918570.

The Standard Replacement section: 6 options from CSF, DENSO, AGILITY and 3 other brands. CSF 3678 is listed in this group.

2 ungrouped parts are not assigned to a grade, with the same engine-level match.

Listed part numbers: CSF 3678, DORMAN 918570 and DENSO 2219446, plus the other parts above.

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

29 Radiator parts for the 2014 Kia Optima come from 14 brands — CSF, UAC, AGILITY and 11 other brands. The "Popular" part is CSF 3756. They are grouped as Economy and Standard Replacement, with Standard Replacement the largest group at 7 parts from CSF, UAC, ACKOJA and 2 other brands.

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

9 Radiator Cap parts for the 2014 Kia Optima come from 5 brands — CALORSTAT, GATES, MOTORAD and 2 other brands. The "Popular" part is MOTORAD T16R. Every part fits all 3 engine options (2.0L L4 Turbocharged, 2.4L L4 and 2.4L L4 ELECTRIC/GAS).

Locking Replacement: 4 parts, from CALORSTAT, GATES and MOTORAD. A representative part number is CALORSTAT RC0213.

Standard Replacement: 5 parts, from MOTORAD, SKP, CALORSTAT and 2 other brands. A representative part number is MOTORAD T16R.

This group includes MOTORAD T16R, CALORSTAT RC0213 and CALORSTAT RC0212 and the remaining parts above.

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

23 Radiator Fan Assembly parts are listed for the 2014 Kia Optima, from TECHPRO, GPD, FOUR SEASONS and 8 other brands. DORMAN 620983 carries the "Popular" badge.

Economy: 9 parts, from TECHPRO, GPD, DORMAN and 1 other brand. A representative part number is DORMAN 620983.

The Standard Replacement section: 14 options from FOUR SEASONS, TYC, AGILITY and 4 other brands. FOUR SEASONS 75979 is listed in this group.

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

One part is listed for the 2014 Kia Optima — HYUNDAI 252313R000.

This table covers the Radiator Fan resistors. Read more

2 Radiator Fan Resistor parts for the 2014 Kia Optima come from 2 brands — GATES and STANDARD MOTOR PRODUCTS. 1 part fits every engine; the other 1 is engine-specific.

This group includes GATES FCM150 and STANDARD MOTOR PRODUCTS RY2017.

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

19 Radiator Hose parts are listed for the 2014 Kia Optima, from CONTINENTAL, DAYCO, GATES and 2 other brands. ACDELCO 27092X carries the "Popular" badge.

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

14 Temperature Sender / Sensor parts for the 2014 Kia Optima come from 14 brands — GPD, HOLSTEIN, UNITED MOTOR PRODUCTS and 11 other brands. The "Popular" part is BECK/ARNLEY 1581695. Every part fits all 3 engine options (2.0L L4 Turbocharged, 2.4L L4 and 2.4L L4 ELECTRIC/GAS).

The Economy section: 4 options from GPD, HOLSTEIN, UNITED MOTOR PRODUCTS and 1 other brand. GPD 1712556 is listed in this group.

Standard Replacement: 10 parts, from BECK/ARNLEY, FOUR SEASONS, STANDARD MOTOR PRODUCTS and 7 other brands. A representative part number is BECK/ARNLEY 1581695.

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

31 Thermostat parts are listed for the 2014 Kia Optima, from MOTORAD, FACET, AISIN and 6 other brands. AISIN THK007 carries the "Popular" badge. Grades run from Premium through Standard Replacement; Standard Replacement is the most populated section, led by FACET, AISIN, CALORSTAT and 6 other brands.

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

14 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2014 Kia Optima come from 6 brands — FEL-PRO, MAHLE / CLEVITE, VICTOR REINZ and 3 other brands. The "Popular" part is FEL-PRO 35921. 11 parts fit every engine; the other 3 are engine-specific.

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

22 Thermostat Housing / Water Outlet parts are listed for the 2014 Kia Optima, from MOTORAD, GATES, FOUR SEASONS and 6 other brands. DORMAN 9025994 carries the "Popular" badge. 2 parts fit every engine; the other 20 are engine-specific.

Economy: 6 parts, from DORMAN, SKP, AUTOTECNICA and 1 other brand. A representative part number is DORMAN 9025994.

The Standard Replacement section: 14 options from MOTORAD, GATES, FOUR SEASONS and 2 other brands. MOTORAD CH5126 is listed in this group.

2 ungrouped parts are not assigned to a grade, 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

3 Water Inlet Gasket parts for the 2014 Kia Optima come from 3 brands — AJUSA, APEX and FEL-PRO. 2 parts fit every engine; the other 1 is engine-specific.

Part numbers include AJUSA 01113800, APEX AWO2093 and FEL-PRO 35368.

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

31 Water Pump parts are listed for the 2014 Kia Optima, from GATES, DAYCO, BECK/ARNLEY and 11 other brands. FAMOUS BRAND 1600424904 carries the "Popular" badge. Grades run from Economy through Standard Replacement; Standard Replacement is the most populated section, led by GATES, DAYCO, AISIN and 3 other brands.