This page lists 162 cooling system parts for the 2012 Buick Regal, across 31 part types, covering both the 2.0L L4 Turbocharged and the 2.4L L4. Every part shows its brand, manufacturer part number and fitment notes.
The cooling system system on the 2012 Buick Regal keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. The largest groups are Water Pump (17 parts), Coolant / Antifreeze (16 parts) and Water Pump Gasket (16 parts). The other 28 part types cover the remaining 113 parts.
The 2012 Buick Regal was sold with both the 2.0L L4 Turbocharged and the 2.4L L4. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2012 Buick Regal cooling system parts are GM GENUINE (25 parts), GATES (8 parts) and MOTORAD (8 parts), plus 50 more brands. Quality grades include Standard Replacement, Economy and Premium.
32 parts on this 2012 Buick Regal page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and FEL-PRO 36068 (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 Fits: 2.0L L4 Turbocharged | AF3055 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: 2.0L L4 Turbocharged | MV5050GAL | 🇺🇸 US 🇨🇦 CA | Extended LifeAll Makes / All Models | View on Amazon |
| PEAK Fits: 2.0L L4 Turbocharged | BQA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| PRESTONE Fits: 2.0L L4 Turbocharged | AF3100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| VALVOLINE Fits: 2.0L L4 Turbocharged | 719009 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: 2.0L L4 Turbocharged | AF2100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles10yr/300k mi | View on Amazon |
| PEAK Fits: 2.0L L4 Turbocharged | PKP1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK Fits: 2.0L L4 Turbocharged | PXA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE Fits: 2.0L L4 Turbocharged | AFMAX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 2.0L L4 Turbocharged | 105027 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | DEX-Cool Extended LifeDexcool (with DE-Ionized Water) (with Bitterant) 1 Gallon | View on Amazon |
| VALVOLINE Popular Fits: 2.0L L4 Turbocharged | ZXEL1 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Dex-Cool Orange1 Gallon | View on Amazon |
| AISIN Fits: 2.0L L4 Turbocharged | ACD005 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OrangeOAT | View on Amazon |
| FVP Fits: 2.0L L4 Turbocharged | DEX5050GAL | 🇺🇸 US 🇨🇦 CA | Extended Life Blend1 Gallon | View on Amazon |
| PRESTONE Fits: 2.0L L4 Turbocharged | AF3400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime OrangeOrange Compatible | View on Amazon |
| PRESTONE Fits: 2.0L L4 Turbocharged | AF850 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | DEX-Cool Extended Life1 Gallon | View on Amazon |
| VALVOLINE Fits: 2.0L L4 Turbocharged | 888374 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | American Vehicle Orange1 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 2012 Buick Regal come from 6 brands — PRESTONE, PEAK, VALVOLINE and 3 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 4 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.
In the Standard Replacement grade, VALVOLINE, PRESTONE, ACDELCO and 2 other brands supply 7 parts: built to original-equipment specification. A representative part number is ACDELCO 105027.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 22759097 | 🇺🇸 US 🇨🇦 CA | Expansion Tank Outlet | View on Amazon |
| GM GENUINE Fits: 2.0L L4 Turbocharged | 12592401 | 🇺🇸 US 🇨🇦 CA | Outlet | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
2 Coolant Hose / Pipe parts for the 2012 Buick Regal come from GM GENUINE.
Part numbers include GM GENUINE 22759097 and GM GENUINE 12592401.
Coolant Hose / Pipe Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 2.0L L4 Turbocharged | 36068 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | O-Ring | View on Amazon |
| AJUSA Fits: 2.0L L4 Turbocharged | 16063000 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Outlet Tube To Water PumpCoolant Pip | View on Amazon |
| APEX Fits: 2.0L L4 Turbocharged | AWO2348 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | O-Ring | View on Amazon |
| GM GENUINE Fits: 2.0L L4 Turbocharged | 90537379 | 🇺🇸 US 🇨🇦 CA | OutletRadiator Pipe | View on Amazon |
| MAHLE / CLEVITE Fits: 2.0L L4 Turbocharged | C31853 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine Coolant Outlet O-RingMolded Rubber | 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 2012 Buick Regal, from FEL-PRO, AJUSA, APEX and 2 other brands. FEL-PRO 36068 carries the "Popular" badge.
This group includes FEL-PRO 36068, AJUSA 16063000 and APEX AWO2348 and the remaining parts above.
Coolant Hose Connector / Flange
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 12599085 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Coolant Hose Connector flanges.
This group shows a single part: GM GENUINE 12599085.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 2.0L L4 Turbocharged | 603385 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| AUTOTECNICA Fits: 2.0L L4 Turbocharged | GM0713819 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes cap & sensor | View on Amazon |
| GM GENUINE Fits: 2.0L L4 Turbocharged | 22950436 | 🇺🇸 US 🇨🇦 CA | without SENSORSwithout SENSOR | View on Amazon |
| GPD Fits: 2.0L L4 Turbocharged | 2411090 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| LARES Fits: 2.0L L4 Turbocharged | 37230 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Cap | View on Amazon |
| TECHPRO Fits: 2.0L L4 Turbocharged | GM3014156 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| TECHPRO Fits: 2.0L L4 Turbocharged | GM3014157 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Cap | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
7 Coolant Reservoir parts are listed for the 2012 Buick Regal, from TECHPRO, DORMAN, AUTOTECNICA and 3 other brands. DORMAN 603385 carries the "Popular" badge.
This group includes DORMAN 603385, AUTOTECNICA GM0713819 and GM GENUINE 22950436 and the remaining parts above.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 2.0L L4 Turbocharged | 54218 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SKP Popular Fits: 2.0L L4 Turbocharged | SK54218 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| AUTOTECNICA Fits: 2.0L L4 Turbocharged | GM0714619 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Diameter: 45mmPressure Rating: 20psi | View on Amazon |
| CALORSTAT Fits: 2.0L L4 Turbocharged | RC0144 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Maximum Pressure Rating: 20.0 PS | View on Amazon |
| GATES Fits: 2.0L L4 Turbocharged | 31569 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Type | View on Amazon |
| MOTORAD Fits: 2.0L L4 Turbocharged | T62 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
6 Coolant Reservoir Cap parts are listed for the 2012 Buick Regal, from DORMAN, SKP, AUTOTECNICA and 3 other brands. DORMAN 54218 carries the "Popular" badge.
Part numbers include DORMAN 54218, SKP SK54218 and AUTOTECNICA GM0714619, among others listed above.
Coolant Reservoir Retainer / Clip
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 13284504 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Coolant Reservoir retainers and clips.
This group shows a single part: GM GENUINE 13284504.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 2.0L L4 Turbocharged | 31431 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cooling System Pressure | View on Amazon |
| GATES Fits: 2.0L L4 Turbocharged | 31391 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cooling System PressureRadiator Cap | View on Amazon |
| MOTORAD Fits: 2.0L L4 Turbocharged | 3128 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | StandardRadiator Cap Adapter | View on Amazon |
| MOTORAD Fits: 2.0L L4 Turbocharged | 3127 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
4 Cooling System Tester Adapter parts for the 2012 Buick Regal come from 2 brands — GATES and MOTORAD.
This group includes GATES 31431, GATES 31391 and MOTORAD 3128 and the remaining parts above.
Hose Clamp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 13162312 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 2.0L L4 Turbocharged | 90530642 | 🇺🇸 US 🇨🇦 CA | Clamp-Sprindband, 14X12, Double BandAir Bleed Hose | View on Amazon |
This table covers the Hose clamps.
2 Hose Clamp parts for the 2012 Buick Regal come from GM GENUINE.
This group includes GM GENUINE 13162312 and GM GENUINE 90530642.
Intercooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular Fits: 2.0L L4 Turbocharged | 6059 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Tube & Fin with Quick-Connect Inlet & Outlet Pipe | View on Amazon |
| AGILITY Fits: 2.0L L4 Turbocharged | 5010028 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GM GENUINE Fits: 2.0L L4 Turbocharged | 13241751 | 🇺🇸 US 🇨🇦 CA | Fits MANUAL TRANS PROVISIONS(MM3) | View on Amazon |
| GPD Fits: 2.0L L4 Turbocharged | 2711280 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| KOYORAD Fits: 2.0L L4 Turbocharged | CC0037 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the intercoolers that cool turbo or supercharger charge air.
5 Intercooler parts for the 2012 Buick Regal come from 5 brands — CSF, AGILITY, GM GENUINE and 2 other brands. The "Popular" part is CSF 6059.
This group includes CSF 6059, AGILITY 5010028 and GM GENUINE 13241751 and the remaining parts above.
Intercooler Air Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 13334019 | 🇺🇸 US 🇨🇦 CA | Fits Air Inlet6 speed Manual trans.or Air Inlet | View on Amazon |
This table covers the Intercooler Air Hose pipes.
This group shows a single part: GM GENUINE 13334019.
Inverter Cooler
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: 2.0L L4 Turbocharged | SKTOC009 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO Fits: 2.0L L4 Turbocharged | GM3011100 | 🇺🇸 US 🇨🇦 CA | eASSIST | View on Amazon |
This table covers the Inverter coolers. Typical signs include overheated fluid, a leak at the fittings, or mixed fluids in the reservoir. Flush the lines when you replace a cooler.
2 Inverter Cooler parts are listed for the 2012 Buick Regal, from SKP and TECHPRO.
Economy: 1 part, from SKP. A representative part number is SKP SKTOC009.
The Standard Replacement section: 1 option from TECHPRO. TECHPRO GM3011100 is listed in this group.
Listed part numbers: SKP SKTOC009 and TECHPRO GM3011100.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: 2.0L L4 Turbocharged | V40602058 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Dimensions: 680 x 398 x 16 mm | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular Fits: 2.0L L4 Turbocharged | 3578 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1 RowPlastic Tank / Aluminum Core | View on Amazon |
| TYC Popular Fits: 2.0L L4 Turbocharged | 13217 | 🇺🇸 US 🇨🇦 CA | Automatic trans.Premium | View on Amazon |
| AGILITY Fits: 2.0L L4 Turbocharged | 8013217 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| NISSENS Fits: 2.0L L4 Turbocharged | 630714 | 🇺🇸 US | Manual TransmissionPremium | View on Amazon |
| NISSENS Fits: 2.0L L4 Turbocharged | 630769 | 🇺🇸 US | Automatic TransPremium | View on Amazon |
| OSC Fits: 2.0L L4 Turbocharged | 13217 | 🇺🇸 US 🇨🇦 CA | Premium | View on Amazon |
| OSC Fits: 2.0L L4 Turbocharged | 13417 | 🇺🇸 US 🇨🇦 CA | GS Model | View on Amazon |
| UAC Fits: 2.0L L4 Turbocharged | RA13217C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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 2012 Buick Regal come from 7 brands — NISSENS, OSC, VEMO and 4 other brands. The "Popular" part is CSF 3578.
The Economy section: 1 option from VEMO. VEMO V40602058 is listed in this group.
Standard Replacement: 8 parts, from NISSENS, OSC, CSF and 3 other brands. A representative part number is CSF 3578.
Listed part numbers: CSF 3578, VEMO V40602058 and TYC 13217, plus the other parts above.
Radiator Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 2.0L L4 Turbocharged | RC124 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | View on Amazon |
| PROFESSIONAL PARTS SWEDEN Fits: 2.0L L4 Turbocharged | 21342353 | 🇺🇸 US 🇨🇦 CA | 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.
2 Radiator Cap parts for the 2012 Buick Regal come from 2 brands — ACDELCO and PROFESSIONAL PARTS SWEDEN.
Listed part numbers: ACDELCO RC124 and PROFESSIONAL PARTS SWEDEN 21342353.
Radiator Drain Petcock
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 13241754 | 🇺🇸 US 🇨🇦 CA | Thread Diameter (In): 0.472 In | View on Amazon |
This table covers the petcocks used to drain the radiator.
One part is listed for the 2012 Buick Regal — GM GENUINE 13241754.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 2.0L L4 Turbocharged | SK620656 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits with Air Conditioningor Shroud Stamped 13241739 | View on Amazon |
| GPD Fits: 2.0L L4 Turbocharged | 2811885 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| TECHPRO Fits: 2.0L L4 Turbocharged | GM3115242 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1st Design | View on Amazon |
| TECHPRO Fits: 2.0L L4 Turbocharged | GM3115250 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | eASSIST | View on Amazon |
| VEMO Fits: 2.0L L4 Turbocharged | V40991040 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thread Size: M22 X 1.5Plug (Connector): 2 Pins | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AGILITY Popular Fits: 2.0L L4 Turbocharged | 6010037 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| TYC Fits: 2.0L L4 Turbocharged | 622860 | 🇺🇸 US 🇨🇦 CA | 1st Design | View on Amazon |
| UAC Fits: 2.0L L4 Turbocharged | FA50770C | 🇺🇸 US 🇨🇦 CA | Radiator-Condenser Fan Assembly | 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 2012 Buick Regal, from TECHPRO, SKP, GPD and 4 other brands. SKP SK620656 carries the "Popular" badge.
Economy: 5 parts, from TECHPRO, SKP, GPD and 1 other brand. A representative part number is SKP SK620656.
The Standard Replacement section: 3 options from AGILITY, TYC and UAC. AGILITY 6010037 is listed in this group.
Part numbers include SKP SK620656, GPD 2811885 and TECHPRO GM3115242, among others listed above.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 2.0L L4 Turbocharged | 13220131 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | View on Amazon |
| ACDELCO Fits: 2.0L L4 Turbocharged | 22863M | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| CONTINENTAL Fits: 2.0L L4 Turbocharged | 66648 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded | View on Amazon |
| GATES Fits: 2.0L L4 Turbocharged | 24482 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded | View on Amazon |
| GM GENUINE Fits: 2.0L L4 Turbocharged | 22936571 | 🇺🇸 US 🇨🇦 CA | LowerPremium | 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 2012 Buick Regal, from ACDELCO, CONTINENTAL, GATES and 1 other brand. ACDELCO 13220131 carries the "Popular" badge.
This group includes ACDELCO 13220131, ACDELCO 22863M and CONTINENTAL 66648 and the remaining parts above.
Radiator Insulator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 13306606 | 🇺🇸 US 🇨🇦 CA | Upper | View on Amazon |
This table covers the Radiator insulators.
One part is listed for the 2012 Buick Regal — GM GENUINE 13306606.
Radiator Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 52493483 | 🇺🇸 US 🇨🇦 CA | Lower | View on Amazon |
This table covers the Radiator mounts. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.
One part is listed for the 2012 Buick Regal — GM GENUINE 52493483.
Radiator Mount Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: 2.0L L4 Turbocharged | SK926280 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Lower | View on Amazon |
| ULTRA-POWER Fits: 2.0L L4 Turbocharged | 926280 | 🇺🇸 US 🇨🇦 CA | LOWERPK QTY: 2 | View on Amazon |
This table covers the Radiator Mount bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
2 Radiator Mount Bushing parts are listed for the 2012 Buick Regal, from SKP and ULTRA-POWER.
This group includes SKP SK926280 and ULTRA-POWER 926280.
Radiator Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 22867535 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the seals at the Radiator. 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.
One part is listed for the 2012 Buick Regal — GM GENUINE 22867535.
Radiator Upper Air Baffle Retainer / Clip
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 2.0L L4 Turbocharged | 700365 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Outside Diameter: 0.688 InAir Box Clip | View on Amazon |
| DORMAN Fits: 2.0L L4 Turbocharged | 963058 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Outside Diameter: 0.71 InAir Box Clip | View on Amazon |
This table covers the Radiator Upper Air Baffle retainers and clips.
DORMAN supplies both parts for the 2012 Buick Regal.
Part numbers include DORMAN 700365 and DORMAN 963058.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 2.0L L4 Turbocharged | 1712489 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with 2 Terminal(s)with M12 x 1.5 Thread | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | CTS73 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Full Service Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS Popular Fits: 2.0L L4 Turbocharged | 21191118 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Service Kit | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 2.0L L4 Turbocharged | 009107271 | 🇺🇸 US 🇨🇦 CA | 2-Pin ConnectorBolted | View on Amazon |
| WALKER PRODUCTS Popular Fits: 2.0L L4 Turbocharged | 2111118 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only | View on Amazon |
| BECK/ARNLEY Fits: 2.0L L4 Turbocharged | 1580733 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| BOSCH Fits: 2.0L L4 Turbocharged | 0280130014 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine Coolant Temperature Sensor | View on Amazon |
| FACET Fits: 2.0L L4 Turbocharged | 73098 | 🇺🇸 US 🇨🇦 CA | GS Model | View on Amazon |
| GM GENUINE Fits: 2.0L L4 Turbocharged | 2134232 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NTK Fits: 2.0L L4 Turbocharged | EF0022 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | TX179 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Color/Finish: Gold, Gray | View on Amazon |
| WELLS Fits: 2.0L L4 Turbocharged | 5S12089 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wiring Harness Included: No | 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.
12 Temperature Sender / Sensor parts for the 2012 Buick Regal come from 11 brands — WALKER PRODUCTS, GPD, UNITED MOTOR PRODUCTS and 8 other brands. The "Popular" part is WALKER PRODUCTS 21191118.
The Economy section: 2 options from GPD and UNITED MOTOR PRODUCTS. GPD 1712489 is listed in this group.
The Full Service Kit section lists 1 option from WALKER PRODUCTS — grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. WALKER PRODUCTS 21191118 is listed in this group.
Standard Replacement: 9 parts, from HELLA, WALKER PRODUCTS, BECK/ARNLEY and 6 other brands. A representative part number is HELLA 009107271.
Thermostat
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: 2.0L L4 Turbocharged | V40990024 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Gasket | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 2.0L L4 Turbocharged | 5461180 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultra StatIncludes seal | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 2.0L L4 Turbocharged | 7461180 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fail-SafeIncludes seal | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: 2.0L L4 Turbocharged | 33943 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Type | View on Amazon |
| MOTORAD Popular Fits: 2.0L L4 Turbocharged | 461180 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Seal | View on Amazon |
| AISIN Fits: 2.0L L4 Turbocharged | THRGM0001 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Thermostat Seal | View on Amazon |
| CALORSTAT Fits: 2.0L L4 Turbocharged | TH688382J | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes 1 Rubber Gasket | View on Amazon |
| FACET Fits: 2.0L L4 Turbocharged | 78800 | 🇺🇸 US 🇨🇦 CA | Includes Gasket, Seals | View on Amazon |
| GM GENUINE Fits: 2.0L L4 Turbocharged | 131158 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MAHLE / CLEVITE Fits: 2.0L L4 Turbocharged | TX12282 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes 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 are listed for the 2012 Buick Regal, from MOTORAD, VEMO, GATES and 5 other brands. GATES 33943 carries the "Popular" badge.
Economy: 1 part, from VEMO. A representative part number is VEMO V40990024.
The Heavy Duty section lists 1 option from MOTORAD — rated for severe service. MOTORAD 5461180 is listed in this group.
The Premium section: 1 option from MOTORAD. MOTORAD 7461180 is listed in this group.
The Standard Replacement section: 7 options from GATES, MOTORAD, AISIN and 4 other brands. GATES 33943 is listed in this group.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 2.0L L4 Turbocharged | 35346 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| FEL-PRO Popular Fits: 2.0L L4 Turbocharged | 36122 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Housing Seal | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 2.0L L4 Turbocharged | C31200 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine Coolant Outlet O-RingMolded Rubber | View on Amazon |
| APEX Fits: 2.0L L4 Turbocharged | AWO2385 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Water Inlet SealThermostat Seal | View on Amazon |
| APEX Fits: 2.0L L4 Turbocharged | AWO2030 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| CALORSTAT Fits: 2.0L L4 Turbocharged | J38 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| ELRING Fits: 2.0L L4 Turbocharged | 446020 | 🇺🇸 US 🇨🇦 CA | Material: EPDM ethylene propylene diene Monomer (M-class) rubber | View on Amazon |
| FACET Fits: 2.0L L4 Turbocharged | 79502 | 🇺🇸 US 🇨🇦 CA | O-Ring | View on Amazon |
| GATES Fits: 2.0L L4 Turbocharged | 33616 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal - 2" x 2 9/32" x 11/64" (Grooved, Molded) | View on Amazon |
| GM GENUINE Fits: 2.0L L4 Turbocharged | 3522676 | 🇺🇸 US 🇨🇦 CA | Square CutThermostat Seal | View on Amazon |
| VICTOR REINZ Fits: 2.0L L4 Turbocharged | 711357400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
11 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2012 Buick Regal come from 9 brands — FEL-PRO, APEX, MAHLE / CLEVITE and 6 other brands. The "Popular" part is FEL-PRO 35346.
Thermostat Housing / Water Outlet
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 2.0L L4 Turbocharged | 12605853 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing | View on Amazon |
| FOUR SEASONS Fits: 2.0L L4 Turbocharged | 85349 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Water Outlet | View on Amazon |
| GATES Fits: 2.0L L4 Turbocharged | CO34933 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat CoverWater Outlet | View on Amazon |
| MOTORAD Fits: 2.0L L4 Turbocharged | CH1017 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits LowerThermostat Housing | View on Amazon |
| MOTORAD Fits: 2.0L L4 Turbocharged | CH6134 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Water Inlet | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
5 Thermostat Housing / Water Outlet parts are listed for the 2012 Buick Regal, from MOTORAD, GM GENUINE, FOUR SEASONS and 1 other brand. GM GENUINE 12605853 carries the "Popular" badge.
This group includes GM GENUINE 12605853, FOUR SEASONS 85349 and GATES CO34933 and the remaining parts above.
Water Inlet Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 90537471 | 🇺🇸 US 🇨🇦 CA | ROUND WILL CHANGE TO OBLONG SHAPE WHEN ASSEMBLED | 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.
This group shows a single part: GM GENUINE 90537471.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 2.0L L4 Turbocharged | SK1307350 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WJB / INMOTION PARTS Popular Fits: 2.0L L4 Turbocharged | WU5092 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| FVP Fits: 2.0L L4 Turbocharged | US5092 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| FVP Fits: 2.0L L4 Turbocharged | US5092G | 🇺🇸 US 🇨🇦 CA | Includes Gear and Back Housing | View on Amazon |
| US MOTOR WORKS Fits: 2.0L L4 Turbocharged | US5092 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| US MOTOR WORKS Fits: 2.0L L4 Turbocharged | US5092G | 🇺🇸 US 🇨🇦 CA | Includes Gear and Back Housing | View on Amazon |
| VAICO Fits: 2.0L L4 Turbocharged | V4050043 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Material Type: Metal Impeller | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: 2.0L L4 Turbocharged | 43529 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GM GENUINE Popular Fits: 2.0L L4 Turbocharged | 251751 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ACDELCO Fits: 2.0L L4 Turbocharged | 252821 | 🇺🇸 US 🇨🇦 CA | GoldDoes Not Include Mount Bolts | View on Amazon |
| AISIN Fits: 2.0L L4 Turbocharged | WPGM700 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| DAYCO Fits: 2.0L L4 Turbocharged | DP208 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without housing | View on Amazon |
| GMB Fits: 2.0L L4 Turbocharged | 1307350 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | PUMP without HOUSING | View on Amazon |
| GMB Fits: 2.0L L4 Turbocharged | 1307350AH | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Housing and Timing Chain Sprocket | View on Amazon |
| GRAF Fits: 2.0L L4 Turbocharged | PA957 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| INA Fits: 2.0L L4 Turbocharged | XW0301 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| MELLING Fits: 2.0L L4 Turbocharged | MWP526WS | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Water Pump Drive Sprocket | 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.
17 Water Pump parts are listed for the 2012 Buick Regal, from FVP, US MOTOR WORKS, GMB and 11 other brands. SKP SK1307350 carries the "Popular" badge.
Economy: 7 parts, from FVP, US MOTOR WORKS, SKP and 2 other brands. A representative part number is SKP SK1307350.
The Standard Replacement section: 10 options from GMB, GATES, GM GENUINE and 6 other brands. GATES 43529 is listed in this group.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 2.0L L4 Turbocharged | ES71282 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Gasket Kit | View on Amazon |
| GM GENUINE Popular Fits: 2.0L L4 Turbocharged | 2512053 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MAHLE / CLEVITE Popular Fits: 2.0L L4 Turbocharged | GS33776 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Contains All Water Pump Gaskets and SealsMolded Rubber | View on Amazon |
| VICTOR REINZ Popular Fits: 2.0L L4 Turbocharged | 181007101 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Set | View on Amazon |
| APEX Fits: 2.0L L4 Turbocharged | AWP3182 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cover | View on Amazon |
| APEX Fits: 2.0L L4 Turbocharged | AWP3181 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting | View on Amazon |
| ELRING Fits: 2.0L L4 Turbocharged | 061670 | 🇺🇸 US 🇨🇦 CA | Engine SidedGS Model | View on Amazon |
| ELRING Fits: 2.0L L4 Turbocharged | 483760 | 🇺🇸 US 🇨🇦 CA | GS ModelBody code: GS69 | View on Amazon |
| ELRING Fits: 2.0L L4 Turbocharged | 446160 | 🇺🇸 US 🇨🇦 CA | GS ModelBody code: GS69 | View on Amazon |
| FEL-PRO Fits: 2.0L L4 Turbocharged | 35724 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | To BlockCover | View on Amazon |
| FEL-PRO Fits: 2.0L L4 Turbocharged | 35721 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | To Block | View on Amazon |
| GM GENUINE Fits: 2.0L L4 Turbocharged | 90537915 | 🇺🇸 US 🇨🇦 CA | Cover | View on Amazon |
| MAHLE / CLEVITE Fits: 2.0L L4 Turbocharged | K31829 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded Rubber | View on Amazon |
| MAHLE / CLEVITE Fits: 2.0L L4 Turbocharged | K31830 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded Rubber | View on Amazon |
| VICTOR REINZ Fits: 2.0L L4 Turbocharged | 711418500 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cover | View on Amazon |
| VICTOR REINZ Fits: 2.0L L4 Turbocharged | 711418400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting | 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.
16 Water Pump Gasket parts for the 2012 Buick Regal come from 6 brands — FEL-PRO, MAHLE / CLEVITE, VICTOR REINZ and 3 other brands. The "Popular" part is FEL-PRO ES71282.
Water Pump Gear
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING Popular Fits: 2.0L L4 Turbocharged | S911 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| CLOYES Fits: 2.0L L4 Turbocharged | S911 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| FVP Fits: 2.0L L4 Turbocharged | S911 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GM GENUINE Fits: 2.0L L4 Turbocharged | 90537298 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PREFERRED COMPONENTS INC Fits: 2.0L L4 Turbocharged | G55911 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Water Pump gears.
5 Water Pump Gear parts for the 2012 Buick Regal come from 5 brands — MELLING, CLOYES, FVP and 2 other brands. The "Popular" part is MELLING S911.
This group includes MELLING S911 and the remaining parts above.
Water Pump Housing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 90537266 | 🇺🇸 US 🇨🇦 CA | Engine Coolant Water Pump Cover | View on Amazon |
This table covers the Water Pump housings.
This group shows a single part: GM GENUINE 90537266.
Buying Cooling System Parts for a 2012 Buick Regal
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.
- Match the engine first. Every cooling system part here is engine-specific; each row shows which engine(s) it fits.
- 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 2012 Buick Regal?
Our catalog currently lists 162 cooling system parts for the 2012 Buick Regal across 31 subcategories and 53 brands, covering both the 2.0L L4 Turbocharged and the 2.4L L4. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 2012 Buick Regal engines?
Yes. Every cooling system part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of cooling system problems on a 2012 Buick Regal?
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 2012 Buick Regal 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 2012 Buick Regal?
First match the engine — each row shows which engine(s) the part fits. 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 2012 Buick Regal
Cooling System Parts for Other Buick Regal Years
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