142 Cooling system parts are listed for the 2008 Kia RIO5, in 20 part types, covering the 1.6L L4 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2008 Kia RIO5, 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 Water Pump (15 parts), Coolant / Antifreeze (13 parts) and Temperature Sender / Sensor (13 parts). The other 17 part types cover the remaining 101 parts.
Every part on this page is matched to the 1.6L L4 — the only engine offered in the 2008 Kia RIO5.
The most listed brands for 2008 Kia RIO5 cooling system parts are MOTORAD (11 parts), GATES (8 parts) and BECK/ARNLEY (6 parts), plus 49 more brands. Quality grades include Standard Replacement, Economy and Premium.
30 parts on this 2008 Kia RIO5 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and DORMAN 603568 (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 |
| 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 |
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 | AF6610 | 🇺🇸 US 🇨🇦 CA | MAX Asian Green1 Gallon | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN | ACG004 | 🇺🇸 US 🇨🇦 CA | GreenPOAT | 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 | PAG1GAL | 🇺🇸 US 🇨🇦 CA | OET Asian Extended Life Green1 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.
13 Coolant / Antifreeze parts for the 2008 Kia RIO5 come from 5 brands — PRESTONE, PEAK, BECK/ARNLEY and 2 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 3 options from FVP, PRESTONE and PEAK — 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 and PEAK supply 4 parts: built to original-equipment specification. A representative part number is AISIN ACG004.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL | 61328 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| DAYCO | 72098 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| HYUNDAI | 2546026000 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
3 Coolant Hose / Pipe parts for the 2008 Kia RIO5 come from 3 brands — CONTINENTAL, DAYCO and HYUNDAI.
Listed part numbers: CONTINENTAL 61328, DAYCO 72098 and HYUNDAI 2546026000.
Coolant Hose / Pipe Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE | C32175 | 🇺🇸 US 🇨🇦 CA | Engine Coolant Outlet O-Ring | View on Amazon |
| VICTOR REINZ | 411028800 | 🇺🇸 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.
2 Coolant Hose / Pipe Seal parts are listed for the 2008 Kia RIO5, from MAHLE / CLEVITE and VICTOR REINZ.
Part numbers include MAHLE / CLEVITE C32175 and VICTOR REINZ 411028800.
Coolant Hose Connector / Flange
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 85399 | 🇺🇸 US 🇨🇦 CA | Water Inlet | View on Amazon |
This table covers the Coolant Hose Connector flanges.
This group shows a single part: FOUR SEASONS 85399.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 603568 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD | 2411128 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| LARES | 37656 | 🇺🇸 US 🇨🇦 CA | Includes Cap | View on Amazon |
| TECHPRO | HY3014101 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VARIOUS MFR | HY3014101 | 🇺🇸 US 🇨🇦 CA | Economy Line | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
5 Coolant Reservoir parts are listed for the 2008 Kia RIO5, from DORMAN, GPD, LARES and 2 other brands. DORMAN 603568 carries the "Popular" badge.
Listed part numbers: DORMAN 603568, GPD 2411128 and LARES 37656, plus the other parts above.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | RC0161 | 🇺🇸 US 🇨🇦 CA | Attachment Type: Cam On | View on Amazon |
| DORMAN | 54018 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MOTORAD | T163 | 🇺🇸 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 are listed for the 2008 Kia RIO5, from CALORSTAT, DORMAN and MOTORAD.
This group includes CALORSTAT RC0161, DORMAN 54018 and MOTORAD T163.
Cooling Fan Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| US MOTOR WORKS | 16749 | 🇺🇸 US 🇨🇦 CA | Econo Control | View on Amazon |
| 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.
US MOTOR WORKS supplies the 3 Cooling Fan Control Module parts for the 2008 Kia RIO5.
This group includes US MOTOR WORKS 16749, US MOTOR WORKS 16789 and US MOTOR WORKS 16795.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 31428 | 🇺🇸 US 🇨🇦 CA | May Require Spacer Number 31416 | View on Amazon |
| MOTORAD | 3121 | 🇺🇸 US 🇨🇦 CA | StandardRadiator Cap Adapter | View on Amazon |
| MOTORAD | 3122 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| STANT | 12021 | 🇺🇸 US 🇨🇦 CA | Radiator Cap/Cooling System Tester Adapter | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
4 Cooling System Tester Adapter parts for the 2008 Kia RIO5 come from 3 brands — MOTORAD, GATES and STANT.
This group includes GATES 31428, MOTORAD 3121 and MOTORAD 3122 and the remaining parts above.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 2820C | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DENSO Popular | 2213709 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SPECTRA PREMIUM Popular | CU2820 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| TYC Popular | 13061 | 🇺🇸 US | PrimaryAutomatic trans. | View on Amazon |
| AGILITY | 8012820 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP | RAD13061 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| KIA | 253101G211 | 🇺🇸 US | Manual trans. | View on Amazon |
| KIA | 253101G061 | 🇺🇸 US | Automatic trans. | View on Amazon |
| NISSENS | 66687 | 🇺🇸 US | Manual Transmission | View on Amazon |
| OSC | 13061 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UAC | RA13061C | 🇺🇸 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.
11 Radiator parts for the 2008 Kia RIO5 come from 10 brands — KIA, GPD, DENSO and 7 other brands. The "Popular" part is DENSO 2213709.
The Economy section: 1 option from GPD. GPD 2820C is listed in this group.
Standard Replacement: 10 parts, from KIA, DENSO, SPECTRA PREMIUM and 6 other brands. A representative part number is DENSO 2213709.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | RC0213 | 🇺🇸 US 🇨🇦 CA | PerformanceIncludes 2 seals | View on Amazon |
| GATES | 31533 | 🇺🇸 US 🇨🇦 CA | Safety Release Radiator Cap | View on Amazon |
| MOTORAD | ST13R | 🇺🇸 US 🇨🇦 CA | Safety Lever | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular | 4502 | 🇺🇸 US 🇨🇦 CA | Mini, 13 PSI | View on Amazon |
| MOTORAD Popular | T13R | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| CALORSTAT | RC0050 | 🇺🇸 US 🇨🇦 CA | Includes 2 sealsMetallic | View on Amazon |
| GATES | 31333 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| SKP | SK10227 | 🇺🇸 US 🇨🇦 CA | Pressure Rating 13 psi | 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.
8 Radiator Cap parts for the 2008 Kia RIO5 come from 5 brands — CALORSTAT, GATES, MOTORAD and 2 other brands. The "Popular" part is CSF 4502.
In the Locking Replacement grade, CALORSTAT, GATES and MOTORAD supply 3 parts: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is CALORSTAT RC0213.
Standard Replacement: 5 parts, from CSF, MOTORAD, CALORSTAT and 2 other brands. A representative part number is CSF 4502.
This group includes CSF 4502, CALORSTAT RC0213 and GATES 31533 and the remaining parts above.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 621423 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD | 2812439 | 🇺🇸 US 🇨🇦 CA | Except United States and Canadian Markets | View on Amazon |
| GPD | 2811322 | 🇺🇸 US 🇨🇦 CA | LeftRadiator Side | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 76273 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| KIA | 253801G100 | 🇺🇸 US | Leftwithout AC | View on Amazon |
| NISSENS | 850053 | 🇺🇸 US 🇨🇦 CA | with Radiator Fan Shroud | View on Amazon |
| UAC | FA50124C | 🇺🇸 US 🇨🇦 CA | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTO 7 Popular | 7080062 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| KIA | 253801G101 | 🇺🇸 US | Leftwith AC | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
9 Radiator Fan Assembly parts are listed for the 2008 Kia RIO5, from GPD, KIA, DORMAN and 4 other brands. DORMAN 621423 carries the "Popular" badge.
Economy: 3 parts, from GPD and DORMAN. A representative part number is DORMAN 621423.
The Standard Replacement section: 4 options from FOUR SEASONS, KIA, NISSENS and 1 other brand. FOUR SEASONS 76273 is listed in this group.
2 ungrouped parts are not assigned to a grade, with the same engine-level match.
Listed part numbers: DORMAN 621423, GPD 2812439 and GPD 2811322, plus the other parts above.
Radiator Fan Blade
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTO 7 | 3210062 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
This table covers the Radiator Fan blades. Typical signs include chatter, streaks, or a skip at the top of the stroke. Confirm left and right lengths in the notes — they are often different.
One part is listed for the 2008 Kia RIO5 — AUTO 7 3210062.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | 22486M | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| DAYCO Popular | 72004 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES Popular | 22827 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| ACDELCO | 20051S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| ACDELCO | 24590L | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| AUTO 7 | 3040339 | 🇺🇸 US 🇨🇦 CA | LowerManual trans. | View on Amazon |
| CONTINENTAL | 66265 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| CONTINENTAL | 66266 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| DAYCO | 72604 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES | 20699 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| GATES | 23230 | 🇺🇸 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.
11 Radiator Hose parts are listed for the 2008 Kia RIO5, from ACDELCO, GATES, DAYCO and 2 other brands. ACDELCO 22486M carries the "Popular" badge.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Popular | 2CTS0091 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular | TX122T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| GPD | 1712632 | 🇺🇸 US 🇨🇦 CA | with 3 Terminal(s)with 3/8 in x 18 NPT | View on Amazon |
| UNITED MOTOR PRODUCTS | CTS125 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | TX122 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY | 1580623 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DELPHI | TS10326 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FACET | 73367 | 🇺🇸 US | View on Amazon | |
| FOUR SEASONS | 37861 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HELLA | 009309621 | 🇺🇸 US | 3-Pin Connector | View on Amazon |
| NTK | EF0112 | 🇺🇸 US 🇨🇦 CA | Located on Cylinder Head | View on Amazon |
| WALKER PRODUCTS | 2111120 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WELLS | 5S1533 | 🇺🇸 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.
13 Temperature Sender / Sensor parts for the 2008 Kia RIO5 come from 12 brands — STANDARD MOTOR PRODUCTS, HOLSTEIN, GPD and 9 other brands. The "Popular" part is HOLSTEIN 2CTS0091.
The Economy section: 4 options from HOLSTEIN, STANDARD MOTOR PRODUCTS, GPD and 1 other brand. HOLSTEIN 2CTS0091 is listed in this group.
Standard Replacement: 9 parts, from STANDARD MOTOR PRODUCTS, BECK/ARNLEY, DELPHI and 6 other brands. A representative part number is STANDARD MOTOR PRODUCTS TX122.
Thermostat
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | 7442180 | 🇺🇸 US 🇨🇦 CA | Fail-Safe | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular | THK007 | 🇺🇸 US 🇨🇦 CA | 82°C (180°F) OE Temp | View on Amazon |
| CALORSTAT Popular | TH629482 | 🇺🇸 US 🇨🇦 CA | Does not include seal | View on Amazon |
| MOTORAD Popular | 442180 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| ACKOJA | A52990003 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY | 1430892 | 🇺🇸 US 🇨🇦 CA | OE TemperatureGasket/Seal Not Included | View on Amazon |
| FACET | 78371S | 🇺🇸 US | View on Amazon | |
| FACET | 78371 | 🇺🇸 US | Includes Gasket | View on Amazon |
| FACET | 78372 | 🇺🇸 US | Includes Gasket | View on Amazon |
| GATES | 34021 | 🇺🇸 US 🇨🇦 CA | OE Exact | View on Amazon |
| HYUNDAI | 2550023010 | 🇺🇸 US 🇨🇦 CA | 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.
11 Thermostat parts are listed for the 2008 Kia RIO5, from FACET, MOTORAD, AISIN and 5 other brands. AISIN THK007 carries the "Popular" badge.
The Premium section: 1 option from MOTORAD. MOTORAD 7442180 is listed in this group.
The Standard Replacement section: 10 options from FACET, AISIN, CALORSTAT and 5 other brands. AISIN THK007 is listed in this group.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 35827 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FEL-PRO Popular | 35730 | 🇺🇸 US 🇨🇦 CA | Water Outlet Seal | View on Amazon |
| FEL-PRO Popular | 35830 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| APEX | AWO2243 | 🇺🇸 US 🇨🇦 CA | Thermostat HousingThermostat Seal | View on Amazon |
| APEX | AWO2203 | 🇺🇸 US 🇨🇦 CA | Water Outlet Seal | View on Amazon |
| APEX | AWO2244 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| MAHLE / CLEVITE | C32132 | 🇺🇸 US 🇨🇦 CA | Rubber Coated Metal | View on Amazon |
| MAHLE / CLEVITE | C32117 | 🇺🇸 US 🇨🇦 CA | Paper | View on Amazon |
| MAHLE / CLEVITE | C32160 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| VICTOR REINZ | 711511500 | 🇺🇸 US 🇨🇦 CA | 3 BoltReplaces OE Part Number(s) 25612-26870 | View on Amazon |
| VICTOR REINZ | 411028400 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing Seal | View on Amazon |
| VICTOR REINZ | 711068400 | 🇺🇸 US 🇨🇦 CA | Water Outlet 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.
12 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2008 Kia RIO5 come from 4 brands — FEL-PRO, APEX, MAHLE / CLEVITE and 1 other brand. The "Popular" part is FEL-PRO 35827.
Thermostat Housing / Water Outlet
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 9025919 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Popular | 86314 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing | View on Amazon |
| FOUR SEASONS | 86299 | 🇺🇸 US 🇨🇦 CA | Water Outlet | View on Amazon |
| HYUNDAI | 2562026845 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing | View on Amazon |
| MOTORAD | CH5399 | 🇺🇸 US 🇨🇦 CA | Fits UpperTo 11/28/2008 | View on Amazon |
| MOTORAD | CH1028 | 🇺🇸 US 🇨🇦 CA | Fits UpperFrom 11/28/2008 | View on Amazon |
| MOTORAD | CH3175 | 🇺🇸 US 🇨🇦 CA | Fits LowerFrom 11/28/2008 | View on Amazon |
| MOTORAD | CH1025 | 🇺🇸 US 🇨🇦 CA | Fits LowerTo 11/28/2008 | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HYUNDAI | 2563126870 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing Cover | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
9 Thermostat Housing / Water Outlet parts are listed for the 2008 Kia RIO5, from MOTORAD, FOUR SEASONS, HYUNDAI and 1 other brand. DORMAN 9025919 carries the "Popular" badge.
Economy: 1 part, from DORMAN. A representative part number is DORMAN 9025919.
The Standard Replacement section: 7 options from MOTORAD, FOUR SEASONS and HYUNDAI. FOUR SEASONS 86314 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
This group includes DORMAN 9025919, FOUR SEASONS 86314 and FOUR SEASONS 86299 and the remaining parts above.
Water Inlet Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APEX | AWO2358 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FEL-PRO | 36049 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the gaskets that seal the Water Inlet. 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.
2 Water Inlet Gasket parts for the 2008 Kia RIO5 come from 2 brands — APEX and FEL-PRO.
Listed part numbers: APEX AWO2358 and FEL-PRO 36049.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular | WU9364 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| AIRTEX | AW9364 | 🇺🇸 US 🇨🇦 CA | Water Pump Drive Type: Serpentine BeltIncludes Gasket | View on Amazon |
| BECK/ARNLEY | 1312201 | 🇺🇸 US 🇨🇦 CA | Includes Gasket | View on Amazon |
| CARTER | W9139M | 🇺🇸 US 🇨🇦 CA | Water Pump Drive Type: Serpentine Belt | View on Amazon |
| FAMOUS BRAND | T1211 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP | US9364 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP | SK1461230 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| US MOTOR WORKS | US9364 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular | WPK800 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GATES Popular | 41107 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ACDELCO | 252713 | 🇺🇸 US 🇨🇦 CA | GoldDoes Not Include Mount Bolts | View on Amazon |
| DAYCO | DP346 | 🇺🇸 US 🇨🇦 CA | Serpentine Belt Driven | View on Amazon |
| GMB | 1461230 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GRAF | PA950 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| INA | XW0587 | 🇺🇸 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.
15 Water Pump parts are listed for the 2008 Kia RIO5, from WJB / INMOTION PARTS, AIRTEX, BECK/ARNLEY and 12 other brands. WJB / INMOTION PARTS WU9364 carries the "Popular" badge.
Economy: 8 parts, from WJB / INMOTION PARTS, AIRTEX, BECK/ARNLEY and 5 other brands. A representative part number is WJB / INMOTION PARTS WU9364.
The Standard Replacement section: 7 options from AISIN, GATES, ACDELCO and 4 other brands. AISIN WPK800 is listed in this group.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 35727 | 🇺🇸 US 🇨🇦 CA | To Block | View on Amazon |
| MAHLE / CLEVITE Popular | K31727 | 🇺🇸 US 🇨🇦 CA | Rubber Coated Metal | View on Amazon |
| APEX | AWP3175 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY | 0394155 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| KIA | 2512426002 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VICTOR REINZ | 711600500 | 🇺🇸 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.
6 Water Pump Gasket parts for the 2008 Kia RIO5 come from 6 brands — FEL-PRO, MAHLE / CLEVITE, APEX and 3 other brands. The "Popular" part is FEL-PRO 35727.
Part numbers include FEL-PRO 35727, MAHLE / CLEVITE K31727 and APEX AWP3175, among others listed above.
Buying Cooling System Parts for a 2008 Kia RIO5
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 1.6L 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: Water Pump and Coolant / Antifreeze .
Frequently Asked Questions
How many cooling system parts fit the 2008 Kia RIO5?
Our catalog currently lists 142 cooling system parts for the 2008 Kia RIO5 across 20 subcategories and 52 brands, covering the 1.6L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2008 Kia RIO5?
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 2008 Kia RIO5 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 2008 Kia RIO5?
Every part on this page is matched to the 1.6L 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 2008 Kia RIO5
Cooling System Parts for Other Kia RIO5 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.