2020 Genesis G90 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 2020 Genesis G90 come from 6 brands — PRESTONE, PEAK, BECK/ARNLEY and 3 other brands. The "Popular" part is FVP MV5050GAL. Every part fits both the 3.3L V6 Turbocharged and the 5.0L V8.

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 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, VALVOLINE, AISIN and 1 other brand supply 5 parts: built to original-equipment specification. A representative part number is VALVOLINE 861398.

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 2020 Genesis G90, from FEL-PRO and HYUNDAI.

Listed part numbers: FEL-PRO 35959 and HYUNDAI 2546235504.

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 both parts for the 2020 Genesis G90. All of them fit every engine offered in the 2020 G90.

Part numbers include MOTORAD T154 and MOTORAD T158.

This table covers the Coolant Water Crossover Mounting sets. Read more

This group shows a single part: FEL-PRO ES72971.

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

This group shows a single part: MOTORAD 3121.

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

5 Radiator parts for the 2020 Genesis G90 come from 3 brands — HYUNDAI, KOYORAD and TECHPRO.

The Economy section: 1 option from TECHPRO. TECHPRO KI3010175 is listed in this group.

Standard Replacement: 2 parts, from HYUNDAI and KOYORAD. A representative part number is HYUNDAI 25310J6200.

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

This group includes TECHPRO KI3010175, HYUNDAI 25310J6200 and KOYORAD A13757 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

6 Radiator Cap parts for the 2020 Genesis G90 come from 3 brands — MOTORAD, CALORSTAT and DORMAN. The "Popular" part is MOTORAD T16R. 2 parts fit every engine; the other 4 are engine-specific.

In the Locking Replacement grade, CALORSTAT and MOTORAD supply 2 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: 4 parts, from MOTORAD, CALORSTAT and DORMAN. A representative part number is MOTORAD T16R.

Part numbers include MOTORAD T16R, CALORSTAT RC0212 and MOTORAD ST16R, among others listed above.

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

3 Radiator Fan Assembly parts are listed for the 2020 Genesis G90, from TECHPRO and VDO / CONTINENTAL.

Economy: 1 part, from TECHPRO. A representative part number is TECHPRO HY3115179.

The Standard Replacement section: 1 option from VDO / CONTINENTAL. VDO / CONTINENTAL FA74069 is listed in this group.

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

This group includes TECHPRO HY3115179, VDO / CONTINENTAL FA74069 and TECHPRO HY3115173.

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

11 Temperature Sender / Sensor parts for the 2020 Genesis G90 come from 7 brands — STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, WELLS and 4 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TX122T.

The Economy section: 3 options from STANDARD MOTOR PRODUCTS, GPD and HOLSTEIN. STANDARD MOTOR PRODUCTS TX122T is listed in this group.

Standard Replacement: 8 parts, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, WELLS and 2 other brands. A representative part number is STANDARD MOTOR PRODUCTS TX122.

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

One part is listed for the 2020 Genesis G90 — MOTORAD 1319212.

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

10 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2020 Genesis G90 come from 3 brands — FEL-PRO, APEX and MAHLE / CLEVITE. The "Popular" part is FEL-PRO 35894.

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

One part is listed for the 2020 Genesis G90 — CALORSTAT THN1474.

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

5 Water Pump parts are listed for the 2020 Genesis G90, from AISIN, DAYCO, FVP and 2 other brands.

Listed part numbers: AISIN WPK824, DAYCO DP1873 and FVP 1463000, 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

6 Water Pump Gasket parts for the 2020 Genesis G90 come from 3 brands — FEL-PRO, APEX and MAHLE / CLEVITE. The "Popular" part is FEL-PRO 35896.

Listed part numbers: FEL-PRO 35896, FEL-PRO 35935 and APEX AWP3226, plus the other parts above.