2019 Acura MDX 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 are listed for the 2019 Acura MDX, from PRESTONE, PEAK, VALVOLINE and 4 other brands. FVP MV5050GAL carries the "Popular" badge.

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, PEAK and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

The Heavy Duty section lists 1 option from PRESTONE — rated for severe service. PRESTONE AFC12100 is listed in this group.

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 hard pipes and extra hoses in the coolant circuit. Read more

One part is listed for the 2019 Acura MDX — MOTORAD CH2165.

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 for the 2019 Acura MDX come from 4 brands — AJUSA, FEL-PRO, MAHLE / CLEVITE and 1 other brand.

Listed part numbers: AJUSA 16022450, FEL-PRO ES72774 and MAHLE / CLEVITE C32870, plus the other parts above.

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

This group shows a single part: TECHPRO AC3014115.

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 for the 2019 Acura MDX come from 2 brands — MOTORAD and DORMAN.

Part numbers include DORMAN 9025404, MOTORAD T128 and MOTORAD T107.

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

3 Cooling System Tester Adapter parts are listed for the 2019 Acura MDX, from 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

10 Radiator parts are listed for the 2019 Acura MDX, from ULTRA-POWER, CSF, DENSO and 7 other brands. CSF 3644 carries the "Popular" badge.

Economy: 1 part, from ULTRA-POWER. A representative part number is ULTRA-POWER 13402.

The Standard Replacement section: 9 options from CSF, DENSO, FVP and 6 other brands. CSF 3644 is listed in this group.

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 are listed for the 2019 Acura MDX, from MOTORAD, GATES, CALORSTAT and 1 other brand. GATES 31412 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 ST37 is listed in this group.

The Standard Replacement section: 4 options from GATES, CALORSTAT, MOTORAD and 1 other brand. GATES 31412 is listed in this group.

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

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

8 Radiator Fan Assembly parts for the 2019 Acura MDX come from 7 brands — GPD, SKP, VARIOUS MFR and 4 other brands. The "Popular" part is SKP SK601490.

The Economy section: 4 options from GPD, SKP and VARIOUS MFR. SKP SK601490 is listed in this group.

Standard Replacement: 3 parts, from TYC, FOUR SEASONS and UAC. A representative part number is TYC 601490.

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

Part numbers include SKP SK601490, GPD 2811922 and GPD 2812230, among others listed above.

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

8 Radiator Hose parts for the 2019 Acura MDX come from 3 brands — DAYCO, CONTINENTAL and GATES. The "Popular" part is DAYCO 70112.

This group includes DAYCO 70112, DAYCO 72492 and CONTINENTAL 66550 and the remaining 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

13 Temperature Sender / Sensor parts are listed for the 2019 Acura MDX, from STANDARD MOTOR PRODUCTS, HOLSTEIN, NTK and 7 other brands. STANDARD MOTOR PRODUCTS TX215T carries the "Popular" badge.

Economy: 6 parts, from HOLSTEIN, STANDARD MOTOR PRODUCTS, CALORSTAT and 2 other brands. A representative part number is STANDARD MOTOR PRODUCTS TX215T.

The Standard Replacement section: 7 options from NTK, BECK/ARNLEY, STANDARD MOTOR PRODUCTS and 3 other brands. BECK/ARNLEY 1581570 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

10 Thermostat parts for the 2019 Acura MDX come from 7 brands — MOTORAD, BECK/ARNLEY, FOUR SEASONS and 4 other brands. The "Popular" part is AISIN THH014.

The Economy section: 1 option from DORMAN. DORMAN 9025953 is listed in this group.

Standard Replacement: 5 parts, from AISIN, MOTORAD, BECK/ARNLEY and 2 other brands. A representative part number is AISIN THH014.

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

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

12 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2019 Acura MDX, from FEL-PRO, MAHLE / CLEVITE, ELRING and 2 other brands. FEL-PRO 35162 carries the "Popular" badge.

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

10 Water Pump parts for the 2019 Acura MDX come from 8 brands — AISIN, BECK/ARNLEY, FVP and 5 other brands. The "Popular" part is AISIN WPH801.

The Economy section: 3 options from BECK/ARNLEY, FVP and US MOTOR WORKS. BECK/ARNLEY 1312285 is listed in this group.

Standard Replacement: 7 parts, from AISIN, GMB, ACDELCO and 2 other brands. A representative part number is AISIN WPH801.

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

5 Water Pump Gasket parts are listed for the 2019 Acura MDX, from FEL-PRO, APEX, BECK/ARNLEY and 2 other brands. FEL-PRO 35677 carries the "Popular" badge.

Listed part numbers: FEL-PRO 35677, APEX AWP3161 and BECK/ARNLEY 0394112, plus the other parts above.