2010 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

13 Coolant / Antifreeze parts for the 2010 Kia Optima come from 5 brands — PRESTONE, PEAK, BECK/ARNLEY and 2 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, PRESTONE and PEAK — 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, BECK/ARNLEY, AISIN and PEAK supply 4 parts: built to original-equipment specification. A representative part number is AISIN ACG004.

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 2010 Kia Optima, from HYUNDAI and VICTOR REINZ.

This group includes HYUNDAI 2546221000 and VICTOR REINZ 151118601.

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

3 Coolant Reservoir Cap parts are listed for the 2010 Kia Optima, from CALORSTAT, DORMAN and MOTORAD.

Listed part numbers: CALORSTAT RC0161, DORMAN 54018 and MOTORAD T163.

This table covers the Cooling Fan control modules. Read more

US MOTOR WORKS supplies the 3 Cooling Fan Control Module parts for the 2010 Kia Optima.

Part numbers include US MOTOR WORKS 16749, US MOTOR WORKS 16789 and US MOTOR WORKS 16795.

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

4 Cooling System Tester Adapter parts for the 2010 Kia Optima come from 3 brands — MOTORAD, GATES and STANT.

Listed part numbers: GATES 31428, MOTORAD 3121 and MOTORAD 3122, 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

11 Radiator parts for the 2010 Kia Optima come from 10 brands — NISSENS, ULTRA-POWER, GPD and 7 other brands. The "Popular" part is ULTRA-POWER 13060.

The Economy section: 2 options from ULTRA-POWER and GPD. ULTRA-POWER 13060 is listed in this group.

Standard Replacement: 9 parts, from NISSENS, CSF, KOYORAD and 5 other brands. A representative part number is CSF 3406.

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 2010 Kia Optima come from 6 brands — CALORSTAT, GATES, MOTORAD and 3 other brands. The "Popular" part is MOTORAD T16R.

In the Locking Replacement grade, CALORSTAT, GATES and MOTORAD supply 3 parts: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is CALORSTAT RC0212.

Standard Replacement: 6 parts, from MOTORAD, SKP, CALORSTAT and 3 other brands. A representative part number is MOTORAD T16R.

Listed part numbers: MOTORAD T16R, CALORSTAT RC0212 and GATES 31534, plus the other parts above.

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

7 Radiator Fan Assembly parts are listed for the 2010 Kia Optima, from GPD, ULTRA-POWER, FOUR SEASONS and 4 other brands. FOUR SEASONS 76226 carries the "Popular" badge.

Economy: 2 parts, from GPD and ULTRA-POWER. A representative part number is GPD 2811623.

The Standard Replacement section: 5 options from FOUR SEASONS, TYC, AGILITY and 2 other brands. FOUR SEASONS 76226 is listed in this group.

Listed part numbers: FOUR SEASONS 76226, GPD 2811623 and ULTRA-POWER 620494, 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

6 Radiator Hose parts are listed for the 2010 Kia Optima, from DAYCO, CONTINENTAL, ACDELCO and 1 other brand. DAYCO 72606 carries the "Popular" badge.

Listed part numbers: DAYCO 72606, DAYCO 72607 and ACDELCO 27006X, plus the other 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

14 Temperature Sender / Sensor parts for the 2010 Kia Optima come from 14 brands — GPD, HOLSTEIN, UNITED MOTOR PRODUCTS and 11 other brands. The "Popular" part is BECK/ARNLEY 1581695.

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, DELPHI, 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

15 Thermostat parts are listed for the 2010 Kia Optima, from MOTORAD, FACET, HYUNDAI and 7 other brands. AISIN THK007 carries the "Popular" badge.

Economy: 2 parts, from AUTOTECNICA and SKP. A representative part number is AUTOTECNICA KI0720141.

The Premium section: 1 option from MOTORAD. MOTORAD 7442180 is listed in this group.

The Standard Replacement section: 12 options from FACET, MOTORAD, HYUNDAI and 5 other brands. AISIN THK007 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 2010 Kia Optima come from 6 brands — MAHLE / CLEVITE, VICTOR REINZ, FEL-PRO and 3 other brands. The "Popular" part is FEL-PRO 35921.

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

5 Thermostat Housing / Water Outlet parts are listed for the 2010 Kia Optima, from MOTORAD, DORMAN, FOUR SEASONS and 1 other brand. MOTORAD CH7027 carries the "Popular" badge.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 9025195.

The Standard Replacement section: 4 options from MOTORAD, FOUR SEASONS and GATES. MOTORAD CH7027 is listed in this group.

Part numbers include MOTORAD CH7027, DORMAN 9025195 and FOUR SEASONS 86027, among others listed 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 C32200.

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

12 Water Pump parts are listed for the 2010 Kia Optima, from DAYCO, GMB, US MOTOR WORKS and 7 other brands. US MOTOR WORKS US6220 carries the "Popular" badge.

Economy: 4 parts, from US MOTOR WORKS, ACKOJA, FVP and 1 other brand. A representative part number is US MOTOR WORKS US6220.

The Standard Replacement section: 8 options from DAYCO, GMB, ACDELCO and 3 other brands. DAYCO DP738B 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

10 Water Pump Gasket parts for the 2010 Kia Optima come from 6 brands — FEL-PRO, MAHLE / CLEVITE, BECK/ARNLEY and 3 other brands. The "Popular" part is FEL-PRO 35813.

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

2 Water Pump Seal / O-Ring parts are listed for the 2010 Kia Optima, from APEX and FEL-PRO.

This group includes APEX AWP3203 and FEL-PRO ES72872.