2018 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 2018 Genesis G90, from PRESTONE, PEAK, VALVOLINE and 3 other brands. FVP MV5050GAL carries the "Popular" badge. All of them fit every engine offered in the 2018 G90.

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, PEAK and PRESTONE 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 VALVOLINE, BECK/ARNLEY, AISIN and 1 other brand — built to original-equipment specification. VALVOLINE ZXEL1 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 2018 Genesis G90 come from 2 brands — 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

2 Coolant Reservoir Cap parts for the 2018 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 2018 Genesis G90 — FEL-PRO ES72971.

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

2 Cooling System Tester Adapter parts are listed for the 2018 Genesis G90, from MOTORAD and STANT. All of them fit every engine offered in the 2018 G90.

Listed part numbers: MOTORAD 3121 and STANT 12021.

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 2018 Genesis G90, from TECHPRO, HYUNDAI and KOYORAD. All of them fit every engine offered in the 2018 G90.

Economy: 1 part, from TECHPRO. A representative part number is TECHPRO HY3010229.

The Standard Replacement section: 2 options from HYUNDAI and KOYORAD. HYUNDAI 25310D2000 is listed in this group.

Listed part numbers: TECHPRO HY3010229, HYUNDAI 25310D2000 and KOYORAD A13757.

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 are listed for the 2018 Genesis G90, from CALORSTAT, MOTORAD, SKP and 1 other brand. MOTORAD T16R carries the "Popular" badge. All of them fit every engine offered in the 2018 G90.

The Locking Replacement section lists 2 options from CALORSTAT and MOTORAD — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. CALORSTAT RC0212 is listed in this group.

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

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 for the 2018 Genesis G90 come from 2 brands — TECHPRO and FOUR SEASONS.

The Economy section: 1 option from TECHPRO. TECHPRO HY3115170 is listed in this group.

Standard Replacement: 1 part, from FOUR SEASONS. A representative part number is FOUR SEASONS 75415.

1 further part sits outside the graded sections, with the same engine-level match.

Listed part numbers: TECHPRO HY3115170, FOUR SEASONS 75415 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

13 Temperature Sender / Sensor parts are listed for the 2018 Genesis G90, from STANDARD MOTOR PRODUCTS, HOLSTEIN, WALKER PRODUCTS and 5 other brands. STANDARD MOTOR PRODUCTS TX122T carries the "Popular" badge. 1 part fits every engine; the other 12 are engine-specific.

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

The Standard Replacement section: 9 options from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, WELLS and 3 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 2018 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

7 Water Pump parts for the 2018 Genesis G90 come from 5 brands — FVP, GMB, AISIN and 2 other brands. The "Popular" part is AISIN WPK824.

This group includes AISIN WPK824, DAYCO DP1873 and FVP 1463000 and the remaining 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 are listed for the 2018 Genesis G90, from FEL-PRO, APEX and MAHLE / CLEVITE. FEL-PRO 35896 carries the "Popular" badge.

Part numbers include FEL-PRO 35896, FEL-PRO 35935 and APEX AWP3226, among others listed above.