2021 Kia K5 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

14 Coolant / Antifreeze parts for the 2021 Kia K5 come from 7 brands — PRESTONE, PEAK, BECK/ARNLEY and 4 other brands. The "Popular" part is FVP MV5050GAL. Every part fits both the 1.6L L4 Turbocharged and the 2.5L L4 Turbocharged.

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 4 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, VALVOLINE, AISIN and 2 other brands supply 6 parts: built to original-equipment specification. A representative part number is VALVOLINE 861398.

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

TECHPRO supplies both parts for the 2021 Kia K5.

This group includes TECHPRO HY3014129 and TECHPRO HY3014128.

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

4 Radiator parts for the 2021 Kia K5 come from 4 brands — TECHPRO, FVP, KOYORAD and 1 other brand.

The Economy section: 1 option from TECHPRO. TECHPRO KI3010177 is listed in this group.

Standard Replacement: 3 parts, from FVP, KOYORAD and UAC. A representative part number is FVP RAD13902.

Part numbers include TECHPRO KI3010177, FVP RAD13902 and KOYORAD A13902, among others listed 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 2021 Kia K5, from TYC, GPD, TECHPRO and 3 other brands. TYC 625050 carries the "Popular" badge.

Economy: 2 parts, from GPD and TECHPRO. A representative part number is GPD 2812267.

The Standard Replacement section: 3 options from TYC, UAC and VDO / CONTINENTAL. TYC 625050 is listed in this group.

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

Part numbers include TYC 625050, GPD 2812267 and TECHPRO HY3115167, 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

9 Temperature Sender / Sensor parts for the 2021 Kia K5 come from 6 brands — WALKER PRODUCTS, STANDARD MOTOR PRODUCTS, GPD and 3 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TX337. 3 parts fit every engine; the other 6 are engine-specific.

The Economy section: 2 options from GPD and UNITED MOTOR PRODUCTS. GPD 1816395 is listed in this group.

Standard Replacement: 5 parts, from WALKER PRODUCTS, STANDARD MOTOR PRODUCTS and WELLS. A representative part number is STANDARD MOTOR PRODUCTS TX337.

2 further parts sit outside the graded sections, with the same engine-level match.

Part numbers include STANDARD MOTOR PRODUCTS TX337, GPD 1816395 and UNITED MOTOR PRODUCTS CTS317, among others listed above.

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 2021 Kia K5, from SKP, MOTORAD, AUTOTECNICA and 2 other brands. 1 part fits every engine; the other 6 are engine-specific.

Economy: 3 parts, from SKP and AUTOTECNICA. A representative part number is AUTOTECNICA HY0720681.

The Standard Replacement section: 4 options from MOTORAD, FOUR SEASONS and HYUNDAI. FOUR SEASONS 86357 is listed in this group.

This group includes AUTOTECNICA HY0720681, SKP SK86357 and SKP SKTA9250 and the remaining parts above.

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

One part is listed for the 2021 Kia K5 — MOTORAD CH3102.

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

13 Water Pump parts are listed for the 2021 Kia K5, from FVP, GMB, AISIN and 2 other brands. AISIN WPK832 carries the "Popular" badge.

Economy: 1 part, from FVP. A representative part number is FVP US8213.

The Standard Replacement section: 3 options from GMB and AISIN. AISIN WPK832 is listed in this group.

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

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

This group shows a single part: FEL-PRO 36191.