2008 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 2008 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 hard pipes and extra hoses in the coolant circuit. Read more

2 Coolant Hose / Pipe parts for the 2008 Acura RDX come from 2 brands — CONTINENTAL and DAYCO.

This group includes CONTINENTAL 64558 and DAYCO 88351.

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

3 Coolant Hose / Pipe Seal parts are listed for the 2008 Acura RDX, from FEL-PRO, MAHLE / CLEVITE and VICTOR REINZ.

Part numbers include FEL-PRO 36022, MAHLE / CLEVITE C32045 and VICTOR REINZ 417634500.

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

2 Coolant Reservoir parts are listed for the 2008 Acura RDX, from TECHPRO and VARIOUS MFR.

Listed part numbers: TECHPRO AC3014110, plus the other parts 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 2008 Acura RDX, from CALORSTAT, DORMAN and MOTORAD.

Listed part numbers: CALORSTAT RC0207, DORMAN 54227 and MOTORAD T165.

This table covers the Cooling Fan control modules. Read more

US MOTOR WORKS supplies the 3 Cooling Fan Control Module parts for the 2008 Acura RDX.

This group includes 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 2008 Acura RDX come from 2 brands — MOTORAD and GATES.

Part numbers include GATES 31409, MOTORAD 3124 and MOTORAD 3125.

This table covers the intercoolers that cool turbo or supercharger charge air. Read more

4 Intercooler parts for the 2008 Acura RDX come from 4 brands — CSF, GPD, SPECTRA PREMIUM and 1 other brand.

This group includes CSF 6099, GPD 2711330 and SPECTRA PREMIUM 44011801 and the remaining parts above.

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

9 Radiator parts for the 2008 Acura RDX come from 9 brands — CSF, KOYORAD, AGILITY and 6 other brands. The "Popular" part is CSF 3477.

Listed part numbers: CSF 3477, KOYORAD A2916 and AGILITY 8012916, plus the other parts 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

6 Radiator Cap parts for the 2008 Acura RDX come from 5 brands — MOTORAD, CSF, GATES and 2 other brands. The "Popular" part is CSF 4514.

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: 5 parts, from CSF, GATES, CALORSTAT and 2 other brands. A representative part number is CSF 4514.

Part numbers include CSF 4514, MOTORAD ST37 and GATES 31412, among others listed above.

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

One part is listed for the 2008 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 2008 Acura RDX, from SKP, AGILITY, FOUR SEASONS and 2 other brands. SKP SK621348 carries the "Popular" badge.

Economy: 1 part, from SKP. A representative part number is SKP SK621348.

The Standard Replacement section: 4 options from AGILITY, FOUR SEASONS, TYC and 1 other brand. AGILITY 6011117 is listed in this group.

Part numbers include SKP SK621348, AGILITY 6011117 and FOUR SEASONS 76322, 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 are listed for the 2008 Acura RDX, from DAYCO, ACDELCO, CONTINENTAL and 1 other brand. DAYCO 72504 carries the "Popular" badge.

Part numbers include DAYCO 72504, DAYCO 72510 and ACDELCO 22701L, among others listed 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

16 Temperature Sender / Sensor parts for the 2008 Acura RDX come from 13 brands — STANDARD MOTOR PRODUCTS, HOLSTEIN, BECK/ARNLEY and 10 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TX215T.

The Economy section: 7 options from HOLSTEIN, STANDARD MOTOR PRODUCTS, CALORSTAT and 3 other brands. STANDARD MOTOR PRODUCTS TX215T is listed in this group.

Standard Replacement: 9 parts, from BECK/ARNLEY, STANDARD MOTOR PRODUCTS, WELLS and 5 other brands. A representative part number is BECK/ARNLEY 1581570.

This table covers the Temperature Sender / Sensor O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

This group shows a single part: FEL-PRO 72926.

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

5 Thermostat parts are listed for the 2008 Acura RDX, from DORMAN, MOTORAD, BECK/ARNLEY and 2 other brands. MOTORAD 754172 carries the "Popular" badge.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 9025168.

The Standard Replacement section: 4 options from MOTORAD, BECK/ARNLEY, FOUR SEASONS and 1 other brand. MOTORAD 754172 is listed in this group.

This group includes MOTORAD 754172, DORMAN 9025168 and BECK/ARNLEY 1430882 and the remaining parts above.

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

8 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2008 Acura RDX come from 5 brands — FEL-PRO, MAHLE / CLEVITE, APEX and 2 other brands. The "Popular" part is FEL-PRO 35892.

This group includes FEL-PRO 35892, FEL-PRO 35739 and APEX AWO2216 and the remaining parts above.

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 are listed for the 2008 Acura RDX, from BECK/ARNLEY, US MOTOR WORKS, AISIN and 3 other brands. AISIN WPH070 carries the "Popular" badge.

Economy: 2 parts, from BECK/ARNLEY and US MOTOR WORKS. A representative part number is BECK/ARNLEY 1312389.

The Standard Replacement section: 4 options from AISIN, GMB, ACDELCO and 1 other brand. AISIN WPH070 is listed in this group.

This group includes AISIN WPH070, BECK/ARNLEY 1312389 and US MOTOR WORKS US6223 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

4 Water Pump Gasket parts for the 2008 Acura RDX come from 4 brands — APEX, BECK/ARNLEY, FEL-PRO and 1 other brand.

Part numbers include APEX AWP3183, BECK/ARNLEY 0394176 and FEL-PRO 35738, among others listed above.