This page lists 82 cooling system parts for the 2005 Toyota Avalon, across 13 part types, covering the 3.5L V6 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2005 Toyota Avalon, 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. 44 parts of the 82 listed are Temperature Sender / Sensor (18 parts), Coolant / Antifreeze (16 parts) and Radiator (10 parts). The other 10 part types cover the remaining 38 parts.
Every part on this page is matched to the 3.5L V6 — the only engine offered in the 2005 Toyota Avalon.
The most listed brands for 2005 Toyota Avalon cooling system parts are PRESTONE (5 parts), MOTORAD (5 parts) and GATES (5 parts), plus 39 more brands. Quality grades include Standard Replacement, Economy and Premium.
19 parts on this 2005 Toyota Avalon page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and DORMAN 603297 (Coolant Reservoir). 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 | 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 |
| PEAK | BQA1GAL | 🇺🇸 US 🇨🇦 CA | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| PRESTONE | AF3100 | 🇺🇸 US 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | 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 | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE | AF6210 | 🇺🇸 US 🇨🇦 CA | MAX Original EquipmentAsian Red/Pink | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular | ACT002 | 🇺🇸 US 🇨🇦 CA | PinkHOAT | View on Amazon |
| VALVOLINE Popular | 675130 | 🇺🇸 US 🇨🇦 CA | Asian Vehicle Red1 Gallon | View on Amazon |
| BECK/ARNLEY | 2521502 | 🇺🇸 US 🇨🇦 CA | Premium Extra Life Pink | View on Amazon |
| BECK/ARNLEY | 2521002 | 🇺🇸 US 🇨🇦 CA | Premium Red | View on Amazon |
| PEAK | PAR1GAL | 🇺🇸 US 🇨🇦 CA | OET Asian Extended Life Red1 Gallon | View on Amazon |
| PENTOSIN | 8115209 | 🇺🇸 US 🇨🇦 CA | Pentofrost A41 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 2005 Toyota Avalon 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, PEAK, PRESTONE 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, AISIN, VALVOLINE and 2 other brands supply 6 parts: built to original-equipment specification. A representative part number is AISIN ACT002.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO | 88472 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
This group shows a single part: DAYCO 88472.
Coolant Level Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | FLS191 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Coolant Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.
This group shows a single part: STANDARD MOTOR PRODUCTS FLS191.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 603297 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ULTRA-POWER Popular | 603297 | 🇺🇸 US 🇨🇦 CA | Coolant Recovery Tank | View on Amazon |
| GPD | 2411192 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| LARES | 37856 | 🇺🇸 US 🇨🇦 CA | Includes Cap | View on Amazon |
| TECHPRO | TO3014118 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VARIOUS MFR | TO3014118 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
6 Coolant Reservoir parts are listed for the 2005 Toyota Avalon, from DORMAN, ULTRA-POWER, GPD and 3 other brands. DORMAN 603297 carries the "Popular" badge.
This group includes DORMAN 603297 and GPD 2411192 and the remaining parts above.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | T126 | 🇺🇸 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.
One part is listed for the 2005 Toyota Avalon — MOTORAD T126.
Cooling Fan Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | FCM111 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ACKOJA | A70790003 | 🇺🇸 US 🇨🇦 CA | with OE No. 8925730060 | View on Amazon |
| DORMAN | 904601 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD | 1712246 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY1819 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 3+2+2 | View on Amazon |
This table covers the Cooling Fan control modules.
5 Cooling Fan Control Module parts are listed for the 2005 Toyota Avalon, from GATES, ACKOJA, DORMAN and 2 other brands. GATES FCM111 carries the "Popular" badge.
This group includes GATES FCM111, ACKOJA A70790003 and DORMAN 904601 and the remaining parts above.
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 for the 2005 Toyota Avalon come from 2 brands — MOTORAD and GATES.
Listed part numbers: GATES 31409, MOTORAD 3124 and MOTORAD 3125.
Radiator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular | 3313 | 🇺🇸 US 🇨🇦 CA | 1 RowPlastic Tank / Aluminum Core | View on Amazon |
| DENSO Popular | 2213157 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| AGILITY | 8012817 | 🇺🇸 US 🇨🇦 CA | with 5/8 inch Core Depth | View on Amazon |
| KOYORAD | A2817 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NISSENS | 646812 | 🇺🇸 US 🇨🇦 CA | Brazed cooling fins | View on Amazon |
| OSC | 2817 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SPECTRA PREMIUM | CU2817 | 🇺🇸 US 🇨🇦 CA | without Towing Package | View on Amazon |
| TYC | 2817 | 🇺🇸 US 🇨🇦 CA | PRIMARY | View on Amazon |
| UAC | RA2817C | 🇺🇸 US 🇨🇦 CA | Downflow | View on Amazon |
| UAC | RA2919C | 🇺🇸 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.
10 Radiator parts for the 2005 Toyota Avalon come from 9 brands — UAC, CSF, DENSO and 6 other brands. The "Popular" part is CSF 3313.
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 | 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 for the 2005 Toyota Avalon 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.
Listed part numbers: CSF 4514, MOTORAD ST37 and GATES 31412, plus the other parts 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.
One part is listed for the 2005 Toyota Avalon — DORMAN 490216.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Popular | 2811588 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ULTRA-POWER Popular | 621300 | 🇺🇸 US 🇨🇦 CA | Sedan | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AGILITY | 6034143 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FOUR SEASONS | 76040 | 🇺🇸 US 🇨🇦 CA | Except Japan Built Vehicle | View on Amazon |
| FOUR SEASONS | 76187 | 🇺🇸 US 🇨🇦 CA | For Vehicle Built In Japan | View on Amazon |
| TYC | 621300 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UAC | FA50447C | 🇺🇸 US 🇨🇦 CA | Radiator-Condenser Fan Assembly | View on Amazon |
| VDO / CONTINENTAL | FA70722 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
8 Radiator Fan Assembly parts are listed for the 2005 Toyota Avalon, from FOUR SEASONS, GPD, ULTRA-POWER and 4 other brands. GPD 2811588 carries the "Popular" badge.
Economy: 2 parts, from GPD and ULTRA-POWER. A representative part number is GPD 2811588.
The Standard Replacement section: 6 options from FOUR SEASONS, AGILITY, TYC and 2 other brands. AGILITY 6034143 is listed in this group.
This group includes GPD 2811588, ULTRA-POWER 621300 and AGILITY 6034143 and the remaining parts above.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular | 72320 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES Popular | 23046 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| CONTINENTAL | 62676 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| CONTINENTAL | 62675 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| DAYCO | 72321 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES | 23083 | 🇺🇸 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.
6 Radiator Hose parts are listed for the 2005 Toyota Avalon, from DAYCO, GATES and CONTINENTAL. DAYCO 72320 carries the "Popular" badge.
Listed part numbers: DAYCO 72320, GATES 23046 and CONTINENTAL 62676, plus the other parts above.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 1712514 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HOLSTEIN | 2CTS0051 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ULTRA-POWER | 5S1616 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UNITED MOTOR PRODUCTS | CTS25 | 🇺🇸 US 🇨🇦 CA | Rectangular Connector | View on Amazon |
| VEMO | V70720007 | 🇺🇸 US 🇨🇦 CA | Thread Size: M12 X 1.5Plug (Connector): 2 Pins | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI Popular | TS10289 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DENSO Popular | 1931000 | 🇺🇸 US 🇨🇦 CA | Engine Coolant Temperature Sensor | View on Amazon |
| FOUR SEASONS Popular | 36424 | 🇺🇸 US 🇨🇦 CA | with Gauge | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | TX40 | 🇺🇸 US 🇨🇦 CA | Rectangular Connector2 Terminal | View on Amazon |
| 555 | KW414 | 🇺🇸 US 🇨🇦 CA | Sankei 555Sender | View on Amazon |
| ACDELCO | D583 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| ACDELCO | 155986 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| BECK/ARNLEY | 1581585 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FACET | 73323 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NTK | EF0157 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | TX109 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS | 2111060 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WELLS | 5S1616 | 🇺🇸 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.
18 Temperature Sender / Sensor parts for the 2005 Toyota Avalon come from 16 brands — STANDARD MOTOR PRODUCTS, ACDELCO, GPD and 13 other brands. The "Popular" part is DELPHI TS10289.
The Economy section: 5 options from GPD, HOLSTEIN, ULTRA-POWER and 2 other brands. GPD 1712514 is listed in this group.
Standard Replacement: 13 parts, from STANDARD MOTOR PRODUCTS, ACDELCO, DELPHI and 8 other brands. A representative part number is DELPHI TS10289.
Buying Cooling System Parts for a 2005 Toyota Avalon
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: Temperature Sender / Sensor and Coolant / Antifreeze .
Frequently Asked Questions
How many cooling system parts fit the 2005 Toyota Avalon?
Our catalog currently lists 82 cooling system parts for the 2005 Toyota Avalon across 13 subcategories and 42 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 2005 Toyota Avalon?
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 2005 Toyota Avalon 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 2005 Toyota Avalon?
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 2005 Toyota Avalon
Cooling System Parts for Other Toyota Avalon Years
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