2021 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

15 Coolant / Antifreeze parts are listed for the 2021 Genesis G90, from PRESTONE, PEAK, BECK/ARNLEY and 4 other brands. FVP MV5050GAL carries the "Popular" badge. 14 parts fit every engine; the other 1 is engine-specific.

The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.

In the Economy grade, FVP, PRESTONE and PEAK supply 3 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

The Premium section lists 5 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 6 options from BECK/ARNLEY, VALVOLINE, AISIN and 2 other brands — built to original-equipment specification. VALVOLINE 861398 is listed in this group.

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 for the 2021 Genesis G90 come from 2 brands — FEL-PRO and HYUNDAI.

Part numbers include 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

2 Coolant Reservoir Cap parts for the 2021 Genesis G90 come from MOTORAD. Every part fits both the 3.3L V6 Turbocharged and the 5.0L V8.

Part numbers include MOTORAD T154 and MOTORAD T158.

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

One part is listed for the 2021 Genesis G90 — FEL-PRO ES72971.

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

One part is listed for the 2021 Genesis G90 — 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

3 Radiator parts are listed for the 2021 Genesis G90, from HYUNDAI and TECHPRO.

Economy: 1 part, from TECHPRO. A representative part number is TECHPRO KI3010175.

The Standard Replacement section: 1 option from HYUNDAI. HYUNDAI 25310J6200 is listed in this group.

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

This group includes TECHPRO KI3010175, HYUNDAI 25310J6200 and HYUNDAI 25310D2700.

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

7 Radiator Cap parts are listed for the 2021 Genesis G90, from MOTORAD, DORMAN, CALORSTAT and 1 other brand. MOTORAD T16R carries the "Popular" badge.

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 ST16R is listed in this group.

The Standard Replacement section: 4 options from MOTORAD, CALORSTAT, DORMAN and 1 other brand. MOTORAD T16R is listed in this group.

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

Listed part numbers: MOTORAD T16R, MOTORAD ST16R and CALORSTAT RC0027, plus the other parts above.

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

2 Radiator Fan Assembly parts for the 2021 Genesis G90 come from 2 brands — TECHPRO and VDO / CONTINENTAL.

The Economy section: 1 option from TECHPRO. TECHPRO HY3115179 is listed in this group.

Standard Replacement: 1 part, from VDO / CONTINENTAL. A representative part number is VDO / CONTINENTAL FA74069.

Part numbers include TECHPRO HY3115179 and VDO / CONTINENTAL FA74069.

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

12 Temperature Sender / Sensor parts are listed for the 2021 Genesis G90, from STANDARD MOTOR PRODUCTS, HOLSTEIN, WALKER PRODUCTS and 4 other brands. STANDARD MOTOR PRODUCTS TX122T carries the "Popular" badge.

Economy: 4 parts, from HOLSTEIN, STANDARD MOTOR PRODUCTS and GPD. A representative part number is STANDARD MOTOR PRODUCTS TX122T.

The Standard Replacement section: 8 options from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, WELLS and 2 other brands. STANDARD MOTOR PRODUCTS TX122 is listed in this group.

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

This group shows a single part: 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 are listed for the 2021 Genesis G90, from FEL-PRO, APEX and MAHLE / CLEVITE. FEL-PRO 35894 carries the "Popular" badge.

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

This group shows a single part: 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

6 Water Pump parts for the 2021 Genesis G90 come from 6 brands — AISIN, DAYCO, FVP and 3 other brands.

Part numbers include AISIN WPK824, DAYCO DP1873 and FVP 1463000, among others listed 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 are listed for the 2021 Genesis G90, from FEL-PRO, APEX and MAHLE / CLEVITE. FEL-PRO 35896 carries the "Popular" badge.

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