This page lists 130 cooling system parts for the 2004 Acura TSX, across 21 part types, covering the 2.4L L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2004 Acura TSX, 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 Temperature Sender / Sensor (17 parts), Coolant / Antifreeze (16 parts) and Thermostat / Thermostat Housing / Water Outlet Seal (16 parts). The other 18 part types cover the remaining 81 parts.
The 2004 Acura TSX came with a single engine, the 2.4L L4, and every part is verified against it.
48 brands supply cooling system parts for the 2004 Acura TSX, led by BECK/ARNLEY (8 parts), MOTORAD (7 parts) and FEL-PRO (6 parts), plus 45 more brands. Quality grades include Standard Replacement, Economy and Premium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2004 Acura TSX. 26 parts have it, including FVP MV5050GAL (Coolant / Antifreeze) and CSF 3366 (Radiator). Each part number opens a page with every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AF3055 | 🇺🇸 US 🇨🇦 CA | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular | MV5050GAL | 🇺🇸 US 🇨🇦 CA | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular | AF3100 | 🇺🇸 US 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US 🇨🇦 CA | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE | 719009 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇺🇸 US 🇨🇦 CA | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇺🇸 US 🇨🇦 CA | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇺🇸 US 🇨🇦 CA | 1 GallonGlobal Lifetime | View on Amazon |
| PRESTONE | AF6310 | 🇺🇸 US 🇨🇦 CA | MAX Original EquipmentAsian Blue | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | 861398 | 🇺🇸 US 🇨🇦 CA | Asian Vehicle Blue1 Gallon | View on Amazon |
| AISIN | ACB003 | 🇺🇸 US 🇨🇦 CA | BlueHOAT | View on Amazon |
| BECK/ARNLEY | 2521501 | 🇺🇸 US 🇨🇦 CA | Premium Extra Life BlueAsian | View on Amazon |
| BECK/ARNLEY | 2521001 | 🇺🇸 US 🇨🇦 CA | Premium Green1 Gallon | View on Amazon |
| PEAK | PAB1GAL | 🇺🇸 US 🇨🇦 CA | OET Asian Extended Life Blue1 Gallon | View on Amazon |
| PENTOSIN | 8115207 | 🇺🇸 US 🇨🇦 CA | 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 are listed for the 2004 Acura TSX, 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 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.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL | 63812 | 🇺🇸 US 🇨🇦 CA | MoldedI.D. 0.620" | View on Amazon |
| DAYCO | 80401 | 🇺🇸 US 🇨🇦 CA | Straight | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
2 Coolant Hose / Pipe parts are listed for the 2004 Acura TSX, from CONTINENTAL and DAYCO.
Part numbers include CONTINENTAL 63812 and DAYCO 80401.
Coolant Hose / Pipe Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO | 36022 | 🇺🇸 US 🇨🇦 CA | O-Ring | View on Amazon |
| MAHLE / CLEVITE | C32045 | 🇺🇸 US 🇨🇦 CA | Engine Coolant Outlet O-Ring | View on Amazon |
| VICTOR REINZ | 417634500 | 🇺🇸 US 🇨🇦 CA | 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.
3 Coolant Hose / Pipe Seal parts for the 2004 Acura TSX come from 3 brands — FEL-PRO, MAHLE / CLEVITE and VICTOR REINZ.
Listed part numbers: FEL-PRO 36022, MAHLE / CLEVITE C32045 and VICTOR REINZ 417634500.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO | AC3014109 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
This group shows a single part: TECHPRO AC3014109.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | RC0175 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DORMAN | 54370 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MOTORAD | T135 | 🇺🇸 US 🇨🇦 CA | Standard | 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.
3 Coolant Reservoir Cap parts for the 2004 Acura TSX come from 3 brands — CALORSTAT, DORMAN and MOTORAD.
Part numbers include CALORSTAT RC0175, DORMAN 54370 and MOTORAD T135.
Cooling Fan Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| US MOTOR WORKS | 16789 | 🇺🇸 US 🇨🇦 CA | Better Control | View on Amazon |
| US MOTOR WORKS | 16795 | 🇺🇸 US 🇨🇦 CA | Best Control | View on Amazon |
This table covers the Cooling Fan control modules.
2 Cooling Fan Control Module parts for the 2004 Acura TSX come from US MOTOR WORKS.
Part numbers include US MOTOR WORKS 16789 and US MOTOR WORKS 16795.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 31409 | 🇺🇸 US 🇨🇦 CA | Cooling System Pressure | View on Amazon |
| MOTORAD | 3124 | 🇺🇸 US 🇨🇦 CA | StandardRadiator Cap Adapter | View on Amazon |
| MOTORAD | 3125 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
3 Cooling System Tester Adapter parts are listed for the 2004 Acura TSX, from MOTORAD and GATES.
This group includes GATES 31409, MOTORAD 3124 and MOTORAD 3125.
Radiator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular | 3366 | 🇺🇸 US 🇨🇦 CA | 1 RowPlastic Tank / Aluminum Core | View on Amazon |
| DENSO Popular | 2213236 | 🇺🇸 US 🇨🇦 CA | Automatic trans. | View on Amazon |
| AGILITY | 8012966 | 🇺🇸 US 🇨🇦 CA | with 5/8 inch Core Depth | View on Amazon |
| KOYORAD | A2966 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NISSENS | 68112 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| OSC | 2680 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SPECTRA PREMIUM | CU2680 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| TYC | 2966 | 🇺🇸 US 🇨🇦 CA | PrimaryAutomatic trans. | View on Amazon |
| UAC | RA2680C | 🇺🇸 US 🇨🇦 CA | 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 are listed for the 2004 Acura TSX, from CSF, DENSO, AGILITY and 6 other brands. CSF 3366 carries the "Popular" badge.
This group includes CSF 3366, DENSO 2213236 and AGILITY 8012966 and the remaining parts above.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | ST37 | 🇺🇸 US 🇨🇦 CA | Safety LeverIndicator Markings Color: Silver | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular | 4514 | 🇺🇸 US 🇨🇦 CA | Micro, 16 psi | View on Amazon |
| GATES Popular | 31412 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| CALORSTAT | RC0040 | 🇺🇸 US 🇨🇦 CA | Includes 2 sealsMetallic | View on Amazon |
| MOTORAD | T37 | 🇺🇸 US 🇨🇦 CA | StandardIncludes Hose | View on Amazon |
| SKP | SK10242 | 🇺🇸 US 🇨🇦 CA | 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 are listed for the 2004 Acura TSX, from MOTORAD, CSF, GATES and 2 other brands. CSF 4514 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: 5 options from CSF, GATES, CALORSTAT and 2 other brands. CSF 4514 is listed in this group.
Part numbers include CSF 4514, MOTORAD ST37 and GATES 31412, among others listed above.
Radiator Drain Petcock
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 490216 | 🇺🇸 US 🇨🇦 CA | PlasticScrew-In Type | View on Amazon |
This table covers the petcocks used to drain the radiator.
This group shows a single part: DORMAN 490216.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 620260 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| SKP Popular | SK620258 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
| GPD | 2811321 | 🇺🇸 US 🇨🇦 CA | LeftRadiator Side | View on Amazon |
| SKP | SK620260 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACKOJA | A26010006 | 🇺🇸 US 🇨🇦 CA | Leftwith OE No. 19020PNLG01 | View on Amazon |
| AGILITY | 6011114 | 🇺🇸 US 🇨🇦 CA | Fan Assembly | View on Amazon |
| FOUR SEASONS | 76181 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NISSENS | 85048 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
| TYC | 600940 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
| UAC | FA50006C | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
10 Radiator Fan Assembly parts for the 2004 Acura TSX come from 9 brands — SKP, DORMAN, GPD and 6 other brands. The "Popular" part is DORMAN 620260.
The Economy section: 4 options from SKP, DORMAN and GPD. DORMAN 620260 is listed in this group.
Standard Replacement: 6 parts, from ACKOJA, AGILITY, FOUR SEASONS and 3 other brands. A representative part number is ACKOJA A26010006.
Radiator Fan Motor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TYC | 630840 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
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.
One part is listed for the 2004 Acura TSX — TYC 630840.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular | 71610 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES Popular | 23305 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| ACDELCO | 24614L | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| ACDELCO | 22598M | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| CONTINENTAL | 62668 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| CONTINENTAL | 62667 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| DAYCO | 72840 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES | 23304 | 🇺🇸 US 🇨🇦 CA | 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.
8 Radiator Hose parts for the 2004 Acura TSX come from 4 brands — DAYCO, GATES, ACDELCO and 1 other brand. The "Popular" part is DAYCO 71610.
This group includes DAYCO 71610, GATES 23305 and ACDELCO 24614L and the remaining parts above.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular | SK5S1529 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD | 1712511 | 🇺🇸 US 🇨🇦 CA | M20 Threadwith 2 Terminal(s) | View on Amazon |
| HOLSTEIN | 2CTS0047 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HOLSTEIN | 2CTS0122 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Rectangular | View on Amazon |
| STANDARD MOTOR PRODUCTS | TX106T | 🇺🇸 US 🇨🇦 CA | T-SeriesMaterial: Brass | View on Amazon |
| VEMO | V26720004 | 🇺🇸 US 🇨🇦 CA | 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 | View on Amazon | |
| DELPHI Popular | TS10296 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HELLA Popular | 009309421 | 🇺🇸 US 🇨🇦 CA | 2-Pin ConnectorBolted | View on Amazon |
| FACET | 73299 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FOUR SEASONS | 37867 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NISSENS | 207066 | 🇺🇸 US 🇨🇦 CA | Oval Connector, screw-thread Fit, total height: 51.5mm | View on Amazon |
| NTK | EF0110 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ROSTRA | 680231 | 🇺🇸 US 🇨🇦 CA | Sender or Switch | View on Amazon |
| STANDARD MOTOR PRODUCTS | TX106 | 🇺🇸 US 🇨🇦 CA | Material: Brass | View on Amazon |
| WALKER PRODUCTS | 2111058 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WELLS | 5S1529 | 🇺🇸 US 🇨🇦 CA | 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.
17 Temperature Sender / Sensor parts are listed for the 2004 Acura TSX, from HOLSTEIN, STANDARD MOTOR PRODUCTS, SKP and 12 other brands. SKP SK5S1529 carries the "Popular" badge.
Economy: 6 parts, from HOLSTEIN, SKP, GPD and 2 other brands. A representative part number is SKP SK5S1529.
The Standard Replacement section: 11 options from BECK/ARNLEY, DELPHI, HELLA and 8 other brands. BECK/ARNLEY 1580811 is listed in this group.
Temperature Sender / Sensor O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO | 72926 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
One part is listed for the 2004 Acura TSX — FEL-PRO 72926.
Thermostat
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP | SK902788 | 🇺🇸 US 🇨🇦 CA | Includes Housing | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 34048 | 🇺🇸 US 🇨🇦 CA | Integrated Housing Thermostat | View on Amazon |
| MOTORAD Popular | 636170 | 🇺🇸 US 🇨🇦 CA | Includes Housing, Seal | View on Amazon |
| AISIN | THH003 | 🇺🇸 US 🇨🇦 CA | 78°C (172°F) OE Temp | View on Amazon |
| BECK/ARNLEY | 1430819 | 🇺🇸 US 🇨🇦 CA | Includes Gasket/Seal, Housing | View on Amazon |
| CALORSTAT | TH713478J | 🇺🇸 US 🇨🇦 CA | 172.0 Degrees | View on Amazon |
| FOUR SEASONS | 85938 | 🇺🇸 US 🇨🇦 CA | Includes Housing | View on Amazon |
| GPD | 8241570 | 🇺🇸 US 🇨🇦 CA | Includes Housing | View on Amazon |
| JAPANESE OE | WHHNC78 | 🇺🇸 US 🇨🇦 CA | TamaIntegral Thermostat & Housing | View on Amazon |
| MAHLE / CLEVITE | TI25478 | 🇺🇸 US 🇨🇦 CA | Integral ThermostatIncludes Gasket or Seal | 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.
10 Thermostat parts for the 2004 Acura TSX come from 10 brands — SKP, GATES, MOTORAD and 7 other brands. The "Popular" part is GATES 34048.
The Economy section: 1 option from SKP. SKP SK902788 is listed in this group.
Standard Replacement: 9 parts, from GATES, MOTORAD, AISIN and 6 other brands. A representative part number is GATES 34048.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APEX Popular | AWO2317 | 🇺🇸 US 🇨🇦 CA | O-Ring | View on Amazon |
| FEL-PRO Popular | 35892 | 🇺🇸 US 🇨🇦 CA | Water Outlet Seal | View on Amazon |
| FEL-PRO Popular | 35739 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing Seal | View on Amazon |
| MAHLE / CLEVITE Popular | C32018 | 🇺🇸 US 🇨🇦 CA | RubberEngine Coolant Outlet O-Ring | View on Amazon |
| APEX | AWO2381 | 🇺🇸 US 🇨🇦 CA | Housing To Engine BlockWater Outlet Seal | View on Amazon |
| APEX | AWO2216 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| APEX | AWO2222 | 🇺🇸 US 🇨🇦 CA | Thermostat CaseThermostat Seal | View on Amazon |
| BECK/ARNLEY | 0390145 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| BECK/ARNLEY | 0396664 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing Seal | View on Amazon |
| ELRING | 650530 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FEL-PRO | 35741 | 🇺🇸 US 🇨🇦 CA | Thermostat To Thermostat HousingThermostat Seal | View on Amazon |
| MAHLE / CLEVITE | C32021 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| MAHLE / CLEVITE | C32022 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| VICTOR REINZ | 411003900 | 🇺🇸 US 🇨🇦 CA | Housing To Cylinder HeadWater Outlet Seal | View on Amazon |
| VICTOR REINZ | 711556400 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing Seal | View on Amazon |
| VICTOR REINZ | 711202000 | 🇺🇸 US 🇨🇦 CA | 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.
16 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2004 Acura TSX, from APEX, FEL-PRO, MAHLE / CLEVITE and 3 other brands. APEX AWO2317 carries the "Popular" badge.
Thermostat Housing / Water Outlet
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA | HA0715580PRM | 🇺🇸 US 🇨🇦 CA | HD Aluminum Upgrade, Corrosion Resistant Finish | View on Amazon |
| DORMAN | 9025190XD | 🇺🇸 US 🇨🇦 CA | OE FIX | View on Amazon |
| DORMAN | 9025190 | 🇺🇸 US 🇨🇦 CA | HousingThermostat Housing | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | CH5996 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| FOUR SEASONS | 85996 | 🇺🇸 US 🇨🇦 CA | LowerThermostat Housing | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
5 Thermostat Housing / Water Outlet parts for the 2004 Acura TSX come from 4 brands — DORMAN, AUTOTECNICA, MOTORAD and 1 other brand. The "Popular" part is MOTORAD CH5996.
The Economy section: 3 options from DORMAN and AUTOTECNICA. AUTOTECNICA HA0715580PRM is listed in this group.
Standard Replacement: 2 parts, from MOTORAD and FOUR SEASONS. A representative part number is MOTORAD CH5996.
This group includes MOTORAD CH5996, AUTOTECNICA HA0715580PRM and DORMAN 9025190XD and the remaining parts above.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular | SK1351500 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ACKOJA | A2650010 | 🇺🇸 US 🇨🇦 CA | without Pulley | View on Amazon |
| BECK/ARNLEY | 1312284 | 🇺🇸 US 🇨🇦 CA | Includes Gasket | View on Amazon |
| FVP | US9461 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| US MOTOR WORKS | US9461 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular | WPH054 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DAYCO | DP462 | 🇺🇸 US 🇨🇦 CA | Serpentine Belt Driven | View on Amazon |
| GATES | 43544 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GMB | 1351500 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GRAF | PA971 | 🇺🇸 US 🇨🇦 CA | 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.
10 Water Pump parts for the 2004 Acura TSX come from 10 brands — SKP, ACKOJA, BECK/ARNLEY and 7 other brands. The "Popular" part is SKP SK1351500.
The Economy section: 5 options from SKP, ACKOJA, BECK/ARNLEY and 2 other brands. SKP SK1351500 is listed in this group.
Standard Replacement: 5 parts, from AISIN, DAYCO, GATES and 2 other brands. A representative part number is AISIN WPH054.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 35738 | 🇺🇸 US 🇨🇦 CA | To Block | View on Amazon |
| APEX | AWP3183 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY | 0394176 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MAHLE / CLEVITE | K31775 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| VICTOR REINZ | 711601700 | 🇺🇸 US 🇨🇦 CA | 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.
5 Water Pump Gasket parts are listed for the 2004 Acura TSX, from FEL-PRO, APEX, BECK/ARNLEY and 2 other brands. FEL-PRO 35738 carries the "Popular" badge.
Part numbers include FEL-PRO 35738, APEX AWP3183 and BECK/ARNLEY 0394176, among others listed above.
Water Pump Seal / O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 634850 | 🇺🇸 US 🇨🇦 CA | Seal | View on Amazon |
This table covers the Water Pump Seal 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.
This group shows a single part: ELRING 634850.
Buying Cooling System Parts for a 2004 Acura TSX
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 2.4L L4 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: Temperature Sender / Sensor and Coolant / Antifreeze .
Frequently Asked Questions
How many cooling system parts fit the 2004 Acura TSX?
Our catalog currently lists 130 cooling system parts for the 2004 Acura TSX across 21 subcategories and 48 brands, covering the 2.4L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2004 Acura TSX?
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 2004 Acura TSX 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 2004 Acura TSX?
Every part on this page is matched to the 2.4L L4 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 2004 Acura TSX
Cooling System Parts for Other Acura TSX 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.