2001 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 2001 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 2001 Kia Optima, from AJUSA and HYUNDAI.

Listed part numbers: AJUSA 16060600 and HYUNDAI 2546221000.

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

One part is listed for the 2001 Kia Optima — TECHPRO HY3014108.

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

One part is listed for the 2001 Kia Optima — CALORSTAT RC0204.

This table covers the Cooling Fan control modules. Read more

US MOTOR WORKS supplies the 3 Cooling Fan Control Module parts for the 2001 Kia Optima.

This group includes 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 2001 Kia Optima come from 3 brands — MOTORAD, GATES and STANT.

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

12 Radiator parts for the 2001 Kia Optima come from 12 brands — FAMOUS BRAND, ULTRA-POWER, CSF and 9 other brands. The "Popular" part is CSF 2928.

The Economy section: 2 options from FAMOUS BRAND and ULTRA-POWER. FAMOUS BRAND 431501 is listed in this group.

Standard Replacement: 10 parts, from CSF, DENSO, TYC and 7 other brands. A representative part number is CSF 2928.

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

8 Radiator Cap parts for the 2001 Kia Optima come from 5 brands — CALORSTAT, GATES, MOTORAD and 2 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: 5 parts, from MOTORAD, SKP, CALORSTAT and 2 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

9 Radiator Fan Assembly parts are listed for the 2001 Kia Optima, from DORMAN, SKP, GPD and 6 other brands. DORMAN 620716 carries the "Popular" badge.

Economy: 4 parts, from DORMAN, SKP, GPD and 1 other brand. A representative part number is DORMAN 620716.

The Standard Replacement section: 5 options from AGILITY, FOUR SEASONS, TYC and 2 other brands. AGILITY 6020105 is listed in this group.

Listed part numbers: DORMAN 620716, SKP SK620716 and GPD 2811307, plus the other parts above.

This table covers the Radiator Fan motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

4 Radiator Fan Motor parts for the 2001 Kia Optima come from 4 brands — FOUR SEASONS, GPD, TYC and 1 other brand.

This group includes FOUR SEASONS 75766, GPD 2312223 and TYC 631260 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

8 Radiator Hose parts are listed for the 2001 Kia Optima, from DAYCO, GATES, ACDELCO and 1 other brand. DAYCO 72100 carries the "Popular" badge.

This group includes DAYCO 72100, GATES 22617 and ACDELCO 24450L 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

16 Temperature Sender / Sensor parts for the 2001 Kia Optima come from 12 brands — STANDARD MOTOR PRODUCTS, HOLSTEIN, GPD and 9 other brands. The "Popular" part is HOLSTEIN 2CTS0282.

The Economy section: 6 options from HOLSTEIN, STANDARD MOTOR PRODUCTS, GPD and 1 other brand. HOLSTEIN 2CTS0282 is listed in this group.

Standard Replacement: 10 parts, from STANDARD MOTOR PRODUCTS, BECK/ARNLEY, DELPHI and 6 other brands. A representative part number is STANDARD MOTOR PRODUCTS TX6.

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 2001 Kia Optima, from MOTORAD, CALORSTAT, GATES and 5 other brands. MOTORAD 5302170 carries the "Popular" badge.

The Heavy Duty section lists 2 options from MOTORAD — rated for severe service. MOTORAD 5302170 is listed in this group.

The Premium section: 2 options from MOTORAD. MOTORAD 7302170 is listed in this group.

The Standard Replacement section: 11 options from MOTORAD, CALORSTAT, GATES and 5 other brands. GATES 33878 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

8 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2001 Kia Optima come from 7 brands — HYUNDAI, FEL-PRO, MOTORAD and 4 other brands. The "Popular" part is FEL-PRO 35764.

This group includes FEL-PRO 35764, MOTORAD MG81 and APEX AWO2191 and the remaining parts above.

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

6 Thermostat Housing / Water Outlet parts are listed for the 2001 Kia Optima, from MOTORAD, DORMAN, FAMOUS BRAND and 2 other brands. DORMAN 9025038 carries the "Popular" badge.

Economy: 2 parts, from DORMAN and FAMOUS BRAND. A representative part number is DORMAN 9025038.

The Standard Replacement section: 4 options from MOTORAD, GATES and HYUNDAI. MOTORAD CH6038 is listed in this group.

Part numbers include DORMAN 9025038, FAMOUS BRAND 85127 and MOTORAD CH6038, among others listed above.

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 2001 Kia Optima, from SKP, ACKOJA, FVP and 9 other brands. SKP SK1462040 carries the "Popular" badge.

Economy: 5 parts, from SKP, ACKOJA, FVP and 2 other brands. A representative part number is SKP SK1462040.

The Standard Replacement section: 7 options from ACDELCO, AISIN, DAYCO and 4 other brands. ACDELCO 252839 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 2001 Kia Optima come from 5 brands — FEL-PRO, APEX, HYUNDAI and 2 other brands. The "Popular" part is FEL-PRO 35765.

This group includes FEL-PRO 35765, APEX AWP3176 and HYUNDAI 2512437100 and the remaining parts above.