This page lists 126 cooling system parts for the 2006 Acura RL, across 18 part types, covering the 3.5L V6 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2006 Acura RL, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. Most of the listed parts are Thermostat (17 parts), Coolant / Antifreeze (16 parts) and Temperature Sender / Sensor (16 parts). The other 15 part types cover the remaining 77 parts.
Every part on this page is matched to the 3.5L V6 — the only engine offered in the 2006 Acura RL.
The most listed brands for 2006 Acura RL cooling system parts are MOTORAD (11 parts), BECK/ARNLEY (8 parts) and GATES (8 parts), plus 46 more brands. Quality grades include Standard Replacement, Economy and Premium.
29 parts on this 2006 Acura RL page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and MAHLE / CLEVITE C32870 (Coolant Hose / Pipe Seal). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AF3055 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular | MV5050GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular | AF3100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE | 719009 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE | AF6310 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | MAX Original EquipmentAsian Blue | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | 861398 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Asian Vehicle Blue1 Gallon | View on Amazon |
| AISIN | ACB003 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueHOAT | View on Amazon |
| BECK/ARNLEY | 2521501 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Premium Extra Life BlueAsian | View on Amazon |
| BECK/ARNLEY | 2521001 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Premium Green1 Gallon | View on Amazon |
| PEAK | PAB1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OET Asian Extended Life Blue1 Gallon | View on Amazon |
| PENTOSIN | 8115207 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pentofrost A31 Gallon | View on Amazon |
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.
16 Coolant / Antifreeze parts for the 2006 Acura RL 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.
Coolant Hose / Pipe Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Popular | C32870 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine Coolant Outlet O-RingMolded Rubber | View on Amazon |
| AJUSA | 16022400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | COOLANT PIPE | View on Amazon |
| AJUSA | 16022450 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | COOLANT PIPE | View on Amazon |
| FEL-PRO | ES72774 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | EGR Valve Gasket(s) IncludedSet | View on Amazon |
| VICTOR REINZ | 411076700 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | O-Ring | View on Amazon |
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.
5 Coolant Hose / Pipe Seal parts are listed for the 2006 Acura RL, 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.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO | AC3014101 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Coolant Tank | View on Amazon |
| VARIOUS MFR | AC3014101 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Economy Line | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
2 Coolant Reservoir parts are listed for the 2006 Acura RL, from TECHPRO and VARIOUS MFR.
Part numbers include TECHPRO AC3014101, among others listed above.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | RC0175 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
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.
One part is listed for the 2006 Acura RL — CALORSTAT RC0175.
Coolant Water Crossover Mounting Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE | C17813 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rubber Coated Metal | View on Amazon |
| VICTOR REINZ | 181016001 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Improved Design | View on Amazon |
This table covers the Coolant Water Crossover Mounting sets.
2 Coolant Water Crossover Mounting Set parts for the 2006 Acura RL come from 2 brands — MAHLE / CLEVITE and VICTOR REINZ.
Part numbers include MAHLE / CLEVITE C17813 and VICTOR REINZ 181016001.
Cooling Fan Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| US MOTOR WORKS | 16749 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Econo Control | View on Amazon |
| US MOTOR WORKS | 16789 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Better Control | View on Amazon |
| US MOTOR WORKS | 16795 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Best Control | View on Amazon |
| WELLS | 6H1515 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Cooling Fan control modules.
4 Cooling Fan Control Module parts are listed for the 2006 Acura RL, from US MOTOR WORKS and WELLS.
Listed part numbers: US MOTOR WORKS 16749, US MOTOR WORKS 16789 and US MOTOR WORKS 16795, plus the other parts above.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 31409 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cooling System Pressure | View on Amazon |
| MOTORAD | 3124 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | StandardRadiator Cap Adapter | View on Amazon |
| MOTORAD | 3125 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
3 Cooling System Tester Adapter parts for the 2006 Acura RL come from 2 brands — MOTORAD and GATES.
Listed part numbers: GATES 31409, MOTORAD 3124 and MOTORAD 3125.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 2838C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular | 3253 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1 RowPlastic Tank / Aluminum Core | View on Amazon |
| DENSO Popular | 2213239 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| AGILITY | 8012838 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| KOYORAD | A2814 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| OSC | 2838 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SPECTRA PREMIUM | CU2838 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| TYC | 2814 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | PRIMARY | View on Amazon |
| UAC | RA2838C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Downflow | View on Amazon |
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.
9 Radiator parts for the 2006 Acura RL come from 9 brands — GPD, CSF, DENSO and 6 other brands. The "Popular" part is CSF 3253.
The Economy section: 1 option from GPD. GPD 2838C is listed in this group.
Standard Replacement: 8 parts, from CSF, DENSO, AGILITY and 5 other brands. A representative part number is CSF 3253.
Listed part numbers: CSF 3253, GPD 2838C and DENSO 2213239, plus the other parts above.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | ST37 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Safety LeverIndicator Markings Color: Silver | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular | 4514 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Micro, 16 psi | View on Amazon |
| GATES Popular | 31412 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Type | View on Amazon |
| CALORSTAT | RC0040 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes 2 sealsMetallic | View on Amazon |
| MOTORAD | T37 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | StandardIncludes Hose | View on Amazon |
| SKP | SK10242 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 16 psi Pressure Rating | View on Amazon |
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.
6 Radiator Cap parts for the 2006 Acura RL 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.
This group includes CSF 4514, MOTORAD ST37 and GATES 31412 and the remaining parts above.
Radiator Drain Petcock
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 490216 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | PlasticScrew-In Type | View on Amazon |
This table covers the petcocks used to drain the radiator.
One part is listed for the 2006 Acura RL — DORMAN 490216.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 620277 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GPD | 2811936 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RightCondenser Fan Assembly | View on Amazon |
| GPD | 2811937 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Left | View on Amazon |
| TECHPRO | AC3115122 | 🇺🇸 US 🇨🇦 CA | with Control Unit | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VDO / CONTINENTAL Popular | FA70939 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UAC | FA70939C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
6 Radiator Fan Assembly parts are listed for the 2006 Acura RL, from GPD, DORMAN, TECHPRO and 2 other brands. DORMAN 620277 carries the "Popular" badge.
Economy: 4 parts, from GPD, DORMAN and TECHPRO. A representative part number is DORMAN 620277.
The Standard Replacement section: 2 options from VDO / CONTINENTAL and UAC. VDO / CONTINENTAL FA70939 is listed in this group.
This group includes DORMAN 620277, GPD 2811936 and GPD 2811937 and the remaining parts above.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular | 72492 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Curved | View on Amazon |
| ACDELCO | 26614X | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| CONTINENTAL | 66340 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded | View on Amazon |
| DAYCO | 72654 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Curved | View on Amazon |
| GATES | 23394 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded | View on Amazon |
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.
5 Radiator Hose parts are listed for the 2006 Acura RL, from DAYCO, ACDELCO, CONTINENTAL and 1 other brand. DAYCO 72492 carries the "Popular" badge.
Part numbers include DAYCO 72492, ACDELCO 26614X and CONTINENTAL 66340, among others listed above.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular | SK5S1529 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Housing | View on Amazon |
| GPD | 1712511 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | M20 Threadwith 2 Terminal(s) | View on Amazon |
| HOLSTEIN | 2CTS0047 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| HOLSTEIN | 2CTS0122 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangular | View on Amazon |
| STANDARD MOTOR PRODUCTS | TX106T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-SeriesMaterial: Brass | View on Amazon |
| VEMO | V26720004 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes O-RingThread Size: M10 X 1.25 | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular | 1580811 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| DELPHI Popular | TS10296 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HELLA Popular | 009309421 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 2-Pin ConnectorBolted | View on Amazon |
| FACET | 73299 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| FOUR SEASONS | 37867 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| NISSENS | 207066 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Oval Connector, screw-thread Fit, total height: 51.5mm | View on Amazon |
| NTK | EF0110 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Located on water passage and thermostat housing | View on Amazon |
| STANDARD MOTOR PRODUCTS | TX106 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Material: Brass | View on Amazon |
| WALKER PRODUCTS | 2111058 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only | View on Amazon |
| WELLS | 5S1529 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangular | View on Amazon |
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.
16 Temperature Sender / Sensor parts for the 2006 Acura RL come from 14 brands — HOLSTEIN, STANDARD MOTOR PRODUCTS, SKP and 11 other brands. The "Popular" part is SKP SK5S1529.
The Economy section: 6 options from HOLSTEIN, SKP, GPD and 2 other brands. SKP SK5S1529 is listed in this group.
Standard Replacement: 10 parts, from BECK/ARNLEY, DELPHI, HELLA and 7 other brands. A representative part number is BECK/ARNLEY 1580811.
Thermostat
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | 5302170 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultra Stat | View on Amazon |
| GATES | 33914S | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Premium | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | 7302170 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fail-Safe | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular | THH017 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Gasket | View on Amazon |
| MOTORAD Popular | 302170 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| ACKOJA | A26990007 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| BECK/ARNLEY | 1430845 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Seal not included. | View on Amazon |
| BECK/ARNLEY | 1430707 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Seals Not Included | View on Amazon |
| CALORSTAT | TH629778J | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes 1 Rubber Gasket | View on Amazon |
| CALORSTAT | TH629766J | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | PerformanceIncludes 1 Rubber Gasket | View on Amazon |
| FACET | 78491 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Gasket | View on Amazon |
| GATES | 33914 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Type | View on Amazon |
| JAPANESE OE | WV64BC78G1 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Tama | View on Amazon |
| JAPANESE OE | WV64BC78 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Tama | View on Amazon |
| MAHLE / CLEVITE | TX14678D | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Gasket or Seal | View on Amazon |
| MOTORAD | 302150 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| MOTORAD | 1063KT | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Kit | View on Amazon |
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.
17 Thermostat parts are listed for the 2006 Acura RL, from MOTORAD, GATES, BECK/ARNLEY and 6 other brands. MOTORAD 5302170 carries the "Popular" badge.
The Heavy Duty section lists 2 options from MOTORAD and GATES — rated for severe service. MOTORAD 5302170 is listed in this group.
The Premium section: 1 option from MOTORAD. MOTORAD 7302170 is listed in this group.
The Standard Replacement section: 14 options from MOTORAD, BECK/ARNLEY, CALORSTAT and 6 other brands. AISIN THH017 is listed in this group.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 35162 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Housing Gasket | View on Amazon |
| MOTORAD Popular | MG81 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| AISIN | THP509 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| APEX | AWO2061 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat O-RingThermostat Seal | View on Amazon |
| BECK/ARNLEY | 0390115 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| ELRING | 463700 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| FACET | 79627 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| GATES | 33658 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal - 2 3/8" x 2 11/16" x 7/32" (Grooved, Molded) | View on Amazon |
| MAHLE / CLEVITE | C31207 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded Rubber | View on Amazon |
| VICTOR REINZ | 711535700 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Housing Seal | View on Amazon |
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.
10 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2006 Acura RL come from 10 brands — FEL-PRO, MOTORAD, AISIN and 7 other brands. The "Popular" part is FEL-PRO 35162.
Thermostat Housing / Water Outlet
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 9025192 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Housing | View on Amazon |
| GPD Popular | 8241401 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | InletWater Outlet | View on Amazon |
| GPD | 8241407 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Water Outlet | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 86216 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Water Outlet | View on Amazon |
| GATES | CO34949 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat CoverWater Outlet | View on Amazon |
| MOTORAD | CH1063 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Thermostat Housingor Water Outlet | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
6 Thermostat Housing / Water Outlet parts are listed for the 2006 Acura RL, from GPD, DORMAN, FOUR SEASONS and 2 other brands. DORMAN 9025192 carries the "Popular" badge.
Economy: 3 parts, from GPD and DORMAN. A representative part number is DORMAN 9025192.
The Standard Replacement section: 3 options from FOUR SEASONS, GATES and MOTORAD. FOUR SEASONS 86216 is listed in this group.
This group includes DORMAN 9025192, GPD 8241401 and GPD 8241407 and the remaining parts above.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular | SK1351530 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| BECK/ARNLEY | 1312285 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Gasket | View on Amazon |
| FVP | US9470 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| US MOTOR WORKS | US9470 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WJB / INMOTION PARTS | WU9470 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular | WPH801 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Gasket | View on Amazon |
| GMB Popular | 1351530 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ACDELCO | 252896 | 🇺🇸 US 🇨🇦 CA | GoldDoes Not Include Mount Bolts | View on Amazon |
| AISIN | WPH801KR | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Korean Manufactured Replacement Pump | View on Amazon |
| DAYCO | DP904 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Timing Belt Should be Replaced with Water Pump | View on Amazon |
| GATES | 41184 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Timing belt driven | View on Amazon |
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.
11 Water Pump parts are listed for the 2006 Acura RL, from AISIN, SKP, BECK/ARNLEY and 7 other brands. SKP SK1351530 carries the "Popular" badge.
Economy: 5 parts, from SKP, BECK/ARNLEY, FVP and 2 other brands. A representative part number is SKP SK1351530.
The Standard Replacement section: 6 options from AISIN, GMB, ACDELCO and 2 other brands. AISIN WPH801 is listed in this group.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 35677 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | To Block | View on Amazon |
| MAHLE / CLEVITE Popular | K17818 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded Rubber | View on Amazon |
| APEX | AWP3161 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| BECK/ARNLEY | 0394112 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ELRING | 967670 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| VICTOR REINZ | 711523400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
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.
6 Water Pump Gasket parts for the 2006 Acura RL come from 6 brands — FEL-PRO, MAHLE / CLEVITE, APEX and 3 other brands. The "Popular" part is FEL-PRO 35677.
Listed part numbers: FEL-PRO 35677, MAHLE / CLEVITE K17818 and APEX AWP3161, plus the other parts above.
Buying Cooling System Parts for a 2006 Acura RL
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Confirm you have the 3.5L V6 engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Thermostat and Coolant / Antifreeze .
Frequently Asked Questions
How many cooling system parts fit the 2006 Acura RL?
Our catalog currently lists 126 cooling system parts for the 2006 Acura RL across 18 subcategories and 49 brands, covering the 3.5L V6 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2006 Acura RL?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2006 Acura RL was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2006 Acura RL?
Every part on this page is matched to the 3.5L V6 engine. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2006 Acura RL
Cooling System Parts for Other Acura RL Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.