2015 Acura RDX 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

17 Coolant / Antifreeze parts for the 2015 Acura RDX 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 Heavy Duty grade, PRESTONE supplies 1 part: rated for severe service. A representative part number is PRESTONE AFC12100.

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

5 Coolant Hose / Pipe Seal parts are listed for the 2015 Acura RDX, from AJUSA, MAHLE / CLEVITE, FEL-PRO and 1 other brand. MAHLE / CLEVITE C32870 carries the "Popular" badge.

Part numbers include MAHLE / CLEVITE C32870, AJUSA 16022400 and AJUSA 16022450, among others listed above.

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

One part is listed for the 2015 Acura RDX — TECHPRO AC3014117.

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 2015 Acura RDX, from CALORSTAT, DORMAN and MOTORAD.

This group includes CALORSTAT RC0175, DORMAN 54370 and MOTORAD T135.

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

2 Coolant Water Crossover Mounting Set parts for the 2015 Acura RDX come from 2 brands — MAHLE / CLEVITE and VICTOR REINZ.

Listed part numbers: MAHLE / CLEVITE C17813 and VICTOR REINZ 181016001.

This table covers the Cooling Fan control modules. Read more

US MOTOR WORKS supplies the 3 Cooling Fan Control Module parts for the 2015 Acura RDX.

Part numbers include US MOTOR WORKS 16749, US MOTOR WORKS 16789 and US MOTOR WORKS 16795.

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

3 Cooling System Tester Adapter parts for the 2015 Acura RDX come from 2 brands — MOTORAD and GATES.

Part numbers include 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

6 Radiator parts for the 2015 Acura RDX come from 6 brands — CSF, KOYORAD, DENSO and 3 other brands. The "Popular" part is CSF 3517.

Part numbers include CSF 3517, KOYORAD A2989 and DENSO 2219558, 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 2015 Acura RDX 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.

This group includes GATES 31412, MOTORAD ST37 and CALORSTAT RC0040 and the remaining parts above.

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

One part is listed for the 2015 Acura RDX — DORMAN 490216.

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

5 Radiator Fan Assembly parts are listed for the 2015 Acura RDX, from GPD, TYC, AGILITY and 2 other brands. TYC 601190 carries the "Popular" badge.

Economy: 1 part, from GPD. A representative part number is GPD 2811342.

The Standard Replacement section: 4 options from TYC, AGILITY, UAC and 1 other brand. TYC 601190 is listed in this group.

This group includes TYC 601190, GPD 2811342 and AGILITY 6019148 and the remaining parts above.

This table covers the Radiator Fan motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

2 Radiator Fan Motor parts for the 2015 Acura RDX come from ACKOJA.

Listed part numbers: ACKOJA A26010019 and ACKOJA A26010021.

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

5 Radiator Hose parts are listed for the 2015 Acura RDX, from DAYCO, GATES and CONTINENTAL. DAYCO 72562 carries the "Popular" badge.

Listed part numbers: DAYCO 72562, CONTINENTAL 66359 and DAYCO 72871, plus the other parts 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

14 Temperature Sender / Sensor parts for the 2015 Acura RDX come from 13 brands — STANDARD MOTOR PRODUCTS, CALORSTAT, GPD and 10 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TX215T.

The Economy section: 6 options from STANDARD MOTOR PRODUCTS, CALORSTAT, GPD and 3 other brands. STANDARD MOTOR PRODUCTS TX215T is listed in this group.

Standard Replacement: 8 parts, from BECK/ARNLEY, WELLS, DELPHI and 5 other brands. A representative part number is BECK/ARNLEY 1581570.