2017 Acura RLX 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

16 Coolant / Antifreeze parts for the 2017 Acura RLX come from 7 brands — PRESTONE, PEAK, VALVOLINE and 4 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 4 options from FVP, PRESTONE, PEAK and 1 other brand — 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 2 other brands supply 6 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

4 Coolant Hose / Pipe Seal parts are listed for the 2017 Acura RLX, from AJUSA, FEL-PRO, MAHLE / CLEVITE and 1 other brand.

Part numbers include AJUSA 16022450, FEL-PRO ES72774 and MAHLE / CLEVITE C32870, among others listed above.

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

3 Coolant Reservoir Cap parts are listed for the 2017 Acura RLX, from CALORSTAT, DORMAN and MOTORAD.

Listed part numbers: CALORSTAT RC0175, DORMAN 54370 and MOTORAD T135.

This table covers the Cooling Fan control modules. Read more

One part is listed for the 2017 Acura RLX — WELLS 6H1500.

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

3 Cooling System Tester Adapter parts for the 2017 Acura RLX come from 2 brands — MOTORAD and GATES.

This group includes GATES 31409, MOTORAD 3124 and MOTORAD 3125.

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

7 Radiator parts for the 2017 Acura RLX come from 7 brands — GPD, ULTRA-POWER, DENSO and 4 other brands. The "Popular" part is DENSO 2219345.

The Economy section: 2 options from GPD and ULTRA-POWER. GPD 13421C is listed in this group.

Standard Replacement: 5 parts, from DENSO, KOYORAD, AGILITY and 2 other brands. A representative part number is DENSO 2219345.

Part numbers include DENSO 2219345, GPD 13421C and ULTRA-POWER 13421, among others listed 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

5 Radiator Cap parts for the 2017 Acura RLX come from 4 brands — MOTORAD, GATES, CALORSTAT and 1 other brand. The "Popular" part is GATES 31412.

In the Locking Replacement grade, MOTORAD supplies 1 part: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is MOTORAD ST37.

Standard Replacement: 4 parts, from GATES, CALORSTAT, MOTORAD and 1 other brand. A representative part number is GATES 31412.

Part numbers include GATES 31412, MOTORAD ST37 and CALORSTAT RC0040, among others listed above.

This table covers the petcocks used to drain the radiator. Read more

One part is listed for the 2017 Acura RLX — DORMAN 490216.

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 2017 Acura RLX, from GPD, TECHPRO and VDO / CONTINENTAL.

Economy: 2 parts, from GPD and TECHPRO. A representative part number is GPD 2812180.

The Standard Replacement section: 1 option from VDO / CONTINENTAL. VDO / CONTINENTAL FA71912 is listed in this group.

This group includes GPD 2812180, TECHPRO AC3115126 and VDO / CONTINENTAL FA71912.

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

GATES supplies both parts for the 2017 Acura RLX.

Listed part numbers: GATES 24884 and GATES 24883.

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

10 Temperature Sender / Sensor parts for the 2017 Acura RLX come from 10 brands — CALORSTAT, GPD, UNITED MOTOR PRODUCTS and 7 other brands. The "Popular" part is BECK/ARNLEY 1581570.

The Economy section: 4 options from CALORSTAT, GPD, UNITED MOTOR PRODUCTS and 1 other brand. CALORSTAT WS3039 is listed in this group.

Standard Replacement: 6 parts, from BECK/ARNLEY, WELLS, DELPHI and 3 other brands. A representative part number is BECK/ARNLEY 1581570.

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

4 Thermostat parts are listed for the 2017 Acura RLX, from DORMAN, BECK/ARNLEY, FOUR SEASONS and 1 other brand.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 9025834.

The Standard Replacement section: 3 options from BECK/ARNLEY, FOUR SEASONS and MOTORAD. BECK/ARNLEY 1430955 is listed in this group.

Part numbers include DORMAN 9025834, BECK/ARNLEY 1430955 and FOUR SEASONS 86192, among others listed above.