2016 Buick Regal Cooling System Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

185 Cooling system parts are listed for the 2016 Buick Regal, in 33 part types, covering all 3 engine options (2.0L L4 Turbocharged, 2.4L L4 and 2.4L L4 ELECTRIC/GAS). Each one has a brand, a manufacturer part number and notes that say where it fits.

The cooling system system on the 2016 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 (23 parts), Temperature Sender / Sensor (17 parts) and Coolant / Antifreeze (16 parts). The other 30 part types cover the remaining 129 parts.

Coolant / Antifreeze

Compatible With All Colors

Brand Part Number Markets Notes Buy
PRESTONE Fits: 2.4L L4 AF3055
🇺🇸 US 🇨🇦 CA
Prime YellowAll Vehicles
Fitment notes — PRESTONE AF3055
Prime YellowAll VehiclesExtended Life55 GAL DrumConcentratePrime® Extended Life All Makes All Models
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Economy

Brand Part Number Markets Notes Buy
FVP Popular Fits: 2.4L L4, 2.4L L4 ELECTRIC/GAS MV5050GAL
🇺🇸 US 🇨🇦 CA
Extended LifeAll Makes / All Models
Fitment notes — FVP MV5050GAL
Extended LifeAll Makes / All Models1 Gallon
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PEAK Fits: 2.4L L4 BQA1GAL
🇺🇸 US 🇨🇦 CA
Blue Mountain Long LifeAll Vehicle
Fitment notes — PEAK BQA1GAL
Blue Mountain Long LifeAll Vehicle1 Gallon
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PRESTONE Fits: 2.4L L4 AF3100
🇺🇸 US 🇨🇦 CA
Prime Yellow - All VehiclesExtended Life
Fitment notes — PRESTONE AF3100
Prime Yellow - All VehiclesExtended Life1 Gallon
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VALVOLINE Fits: 2.4L L4 719009
🇺🇸 US 🇨🇦 CA
Multi-Vehicle Yellow1 Gallon
Fitment notes — VALVOLINE 719009
Multi-Vehicle Yellow1 Gallon
Base Model
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Premium

Brand Part Number Markets Notes Buy
PRESTONE Popular Fits: 2.4L L4 AF2100
🇺🇸 US 🇨🇦 CA
All Vehicles10yr/300k mi
Fitment notes — PRESTONE AF2100
All Vehicles10yr/300k mi1 GallonExtended Life
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PEAK Fits: 2.4L L4 PKP1GAL
🇺🇸 US 🇨🇦 CA
All Vehicles Antifreeze1 Gallon
Fitment notes — PEAK PKP1GAL
All Vehicles Antifreeze1 GallonPREMIUM1 GALLON10X MORE SCALE FIGHTING INHIBITORS10 YEAR/300K MILES
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PEAK Fits: 2.4L L4 PXA1GAL
🇺🇸 US 🇨🇦 CA
Global Lifetime1 Gallon
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PRESTONE Fits: 2.4L L4 AFMAX
🇺🇸 US 🇨🇦 CA
Max Universal1 Gallon
Fitment notes — PRESTONE AFMAX
Max Universal1 Gallon15 Year/350k Miles
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Standard Replacement

Brand Part Number Markets Notes Buy
ACDELCO Popular Fits: 2.4L L4 105027
🇺🇸 US 🇨🇦 CA
DEX-Cool Extended LifeDexcool (with DE-Ionized Water) (with Bitterant) 1 Gallon
Fitment notes — ACDELCO 105027
DEX-Cool Extended LifeDexcool (with DE-Ionized Water) (with Bitterant) 1 GallonPremix1 Gallon GM Original EquipmentOrange
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VALVOLINE Popular Fits: 2.4L L4 ZXEL1
🇺🇸 US 🇨🇦 CA
Dex-Cool Orange1 Gallon
Fitment notes — VALVOLINE ZXEL1
Dex-Cool Orange1 GallonOAT
Fits:
Base Modelor Premium
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AISIN Fits: 2.4L L4 ACD005
🇺🇸 US 🇨🇦 CA
OrangeOAT
Fitment notes — AISIN ACD005
OrangeOAT
(Type: Prediluted)
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FVP Fits: 2.4L L4, 2.4L L4 ELECTRIC/GAS DEX5050GAL
🇺🇸 US 🇨🇦 CA
Extended Life Blend1 Gallon
Fitment notes — FVP DEX5050GAL
Extended Life Blend1 GallonOrangeOAT
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PRESTONE Fits: 2.4L L4 AF3400
🇺🇸 US 🇨🇦 CA
Prime OrangeOrange Compatible
Fitment notes — PRESTONE AF3400
Prime OrangeOrange CompatibleExtended Life1 Gallon ConcentrateOAT
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PRESTONE Fits: 2.4L L4 AF850
🇺🇸 US 🇨🇦 CA
DEX-Cool Extended Life1 Gallon
Fitment notes — PRESTONE AF850
DEX-Cool Extended Life1 GallonOrangeOAT
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VALVOLINE Fits: 2.4L L4 888374
🇺🇸 US 🇨🇦 CA
American Vehicle Orange1 Gallon
Fitment notes — VALVOLINE 888374
American Vehicle Orange1 Gallon
Base Model (Type: Prediluted)
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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.

Coolant Air Bleeder

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.4L L4 13267637
🇺🇸 US 🇨🇦 CA
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This table covers the bleeders used to purge air from the coolant circuit.

Coolant Bleed Hose Fitting

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.4L L4 12589732
🇺🇸 US 🇨🇦 CA
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This table covers the Coolant Bleed Hose fittings.

Coolant Hose / Pipe

Brand Part Number Markets Notes Buy
CONTINENTAL Popular Fits: 2.4L L4 63912
🇺🇸 US 🇨🇦 CA
I.D. 0.750"Length 15"
Fitment notes — CONTINENTAL 63912
I.D. 0.750"Length 15"
Reservoir To ThermostatBase Model
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GATES Popular Fits: 2.4L L4 28475
🇺🇸 US 🇨🇦 CA
90 Degree Molded3/4" x 16" (4" Short Side
Fitment notes — GATES 28475
90 Degree Molded3/4" x 16" (4" Short Side12" Long Side)
Reservoir To ThermostatBase ModelCut to fit
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ACDELCO Fits: 2.4L L4 16199M
🇺🇸 US 🇨🇦 CA
Gold / Professional90 Degree Molded
Fitment notes — ACDELCO 16199M
Gold / Professional90 Degree Molded3/4" x 16" (4" Short Side12" Long Side)
Reservoir To ThermostatBase ModelCut to fit
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GM GENUINE Fits: 2.4L L4 20809018
🇺🇸 US 🇨🇦 CA
Coolant Hose Heat Shield Included: YES
Fitment notes — GM GENUINE 20809018
Coolant Hose Heat Shield Included: YES
Expansion Tank OutletBase Model
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GM GENUINE Fits: 2.4L L4 22922980
🇺🇸 US 🇨🇦 CA
Auxiliary Radiator InletPremium
Fitment notes — GM GENUINE 22922980
Auxiliary Radiator InletPremiumHOSE DOES NOT INCLUDE CLAMPS
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GM GENUINE Fits: 2.4L L4 90537356
🇺🇸 US 🇨🇦 CA
Fits OutletPremiumor Outlet
Fitment notes — GM GENUINE 90537356
Fits:
OutletPremiumor OutletBase ModelTrans. code 6T406 speed Automatic trans.
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This table covers the hard pipes and extra hoses in the coolant circuit.

Coolant Hose / Pipe Seal

Brand Part Number Markets Notes Buy
APEX Fits: 2.4L L4 AWO2348
🇺🇸 US 🇨🇦 CA
O-Ring
Fitment notes — APEX AWO2348
O-Ring
Outlet Tube To Water PumpCoolant Pipe
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FEL-PRO Fits: 2.4L L4 36068
🇺🇸 US 🇨🇦 CA
O-Ring
Fitment notes — FEL-PRO 36068
O-Ring
Outlet Tube To Water PumpCoolant Pipe
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GM GENUINE Fits: 2.4L L4 90537379
🇺🇸 US 🇨🇦 CA
Fits OutletPremium
Fitment notes — GM GENUINE 90537379
Fits:
OutletPremiumRadiator Pip
or:
OutletBase ModelTrans.Code 6T406 speed Automatic trans.Radiator Pipe
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MAHLE / CLEVITE Fits: 2.4L L4 C31853
🇺🇸 US 🇨🇦 CA
Engine Coolant Outlet O-RingMolded Rubber
Fitment notes — MAHLE / CLEVITE C31853
Engine Coolant Outlet O-RingMolded Rubber
COOLANT PIPE
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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.

Coolant Hose Connector / Flange

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.4L L4 12607291
🇺🇸 US 🇨🇦 CA
Fits Premiumwith Surge Portor Base Model
Fitment notes — GM GENUINE 12607291
Fits:
Premiumwith Surge Portor Base ModelTrans.Code 6T406 speed Automatic trans.with Surge Port
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This table covers the Coolant Hose Connector flanges.

Coolant Reservoir

Brand Part Number Markets Notes Buy
DORMAN Popular Fits: 2.4L L4 603385
🇺🇸 US 🇨🇦 CA
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AUTOTECNICA Fits: 2.4L L4 GM0713819
🇺🇸 US 🇨🇦 CA
Includes cap & sensor
Fitment notes — AUTOTECNICA GM0713819
Includes cap & sensor
Length: 185mm
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GM GENUINE Fits: 2.4L L4 22950436
🇺🇸 US 🇨🇦 CA
without SENSORSwithout SENSOR
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GPD Fits: 2.4L L4 2411090
🇺🇸 US 🇨🇦 CA
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LARES Fits: 2.4L L4 37230
🇺🇸 US 🇨🇦 CA
Includes Cap
Fitment notes — LARES 37230
Includes Cap
Front
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TECHPRO Fits: 2.4L L4, 2.4L L4 ELECTRIC/GAS GM3014156
🇺🇸 US 🇨🇦 CA
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TECHPRO Fits: 2.4L L4 GM3014157
🇺🇸 US 🇨🇦 CA
Includes Cap
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This table covers the overflow / expansion tanks that hold extra coolant.

Coolant Reservoir Cap

Brand Part Number Markets Notes Buy
DORMAN Popular Fits: 2.4L L4 54218
🇺🇸 US 🇨🇦 CA
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AUTOTECNICA Fits: 2.4L L4 GM0714619
🇺🇸 US 🇨🇦 CA
Diameter: 45mmPressure Rating: 20psi
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CALORSTAT Fits: 2.4L L4 RC0144
🇺🇸 US 🇨🇦 CA
Maximum Pressure Rating: 20.0 PS
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GATES Fits: 2.4L L4 31569
🇺🇸 US 🇨🇦 CA
OE Type
Fitment notes — GATES 31569
OE Type
20 psi Pressure Rating
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MOTORAD Fits: 2.4L L4 T62
🇺🇸 US 🇨🇦 CA
Standard
Fitment notes — MOTORAD T62
Standard
Relief Pressure 20 lbs
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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.

Coolant Reservoir Retainer / Clip

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.4L L4 13284504
🇺🇸 US 🇨🇦 CA
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This table covers the Coolant Reservoir retainers and clips.

Cooling System Tester Adapter

Brand Part Number Markets Notes Buy
GATES Fits: 2.4L L4 31391
🇺🇸 US 🇨🇦 CA
Cooling System PressureRadiator Cap
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MOTORAD Fits: 2.4L L4 3128
🇺🇸 US 🇨🇦 CA
StandardRadiator Cap Adapter
Fitment notes — MOTORAD 3128
StandardRadiator Cap Adapter
Cooling System PressureRadiator Cap Adapter
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MOTORAD Fits: 2.4L L4 3127
🇺🇸 US 🇨🇦 CA
Standard
Fitment notes — MOTORAD 3127
Standard
Cooling System Pressure
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This table covers the adapters used to pressure-test this cooling system.

Hose Clamp

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.4L L4 90572594
🇺🇸 US 🇨🇦 CA
Fits Base Model27 Diameter
Fitment notes — GM GENUINE 90572594
Fits:
Base Model27 DiameterReservoir Outlet Hos
or:
Premium27 DiameterReservoir Outlet Hose
or:
UpperPremium27 DiameterRadiator Hose
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GM GENUINE Fits: 2.4L L4 13162312
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13162312
Black
Fits:
Lower42MM IDRadiator Hose
or:
UpperBase Model42MM IDRadiator Hose
or:
UpperPremium42MM IDRadiator Hose
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GM GENUINE Fits: 2.4L L4 11570614
🇺🇸 US 🇨🇦 CA
Clamp-Springband, 15 Nominal Diameter, 15 ThickReservoir Inlet Hose
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GM GENUINE Fits: 2.4L L4 11611503
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 11611503
Black
Fits:
Base ModelM27X12Reservoir Outlet Hos
or:
PremiumM27X12Reservoir Outlet Hose
or:
UpperPremiumM27X12Radiator Hose
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This table covers the Hose clamps.

Intercooler

Brand Part Number Markets Notes Buy
OSC Fits: 2.4L L4 13329
🇺🇸 US 🇨🇦 CA
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This table covers the intercoolers that cool turbo or supercharger charge air.

Inverter Cooler

Brand Part Number Markets Notes Buy
CSF Fits: 2.4L L4 3627
🇺🇸 US 🇨🇦 CA
1 RowO.E.M. Style All Aluminum Tanks & Core Model
Fitment notes — CSF 3627
1 RowO.E.M. Style All Aluminum Tanks & Core Model
PremiumAuxiliary Radiator
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GPD Fits: 2.4L L4 2611364
🇺🇸 US 🇨🇦 CA
PremiumDrive Motor Inverter Cooler
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TECHPRO Fits: 2.4L L4, 2.4L L4 ELECTRIC/GAS GM3011100
🇺🇸 US 🇨🇦 CA
eASSIST
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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.

Radiator

Brand Part Number Markets Notes Buy
KOYORAD Popular Fits: 2.4L L4 A13146
🇺🇸 US 🇨🇦 CA
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TYC Popular Fits: 2.4L L4 13146
🇺🇸 US 🇨🇦 CA
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AGILITY Fits: 2.4L L4 8013146
🇺🇸 US 🇨🇦 CA
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CSF Fits: 2.4L L4 3577
🇺🇸 US 🇨🇦 CA
1 RowPlastic Tank / Aluminum Core
Fitment notes — CSF 3577
1 RowPlastic Tank / Aluminum Corewith Quick-Connect Oil Cooler Fittings.
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FVP Fits: 2.4L L4 RAD13146
🇺🇸 US 🇨🇦 CA
MAIN RADIATOR
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GM GENUINE Fits: 2.4L L4 21765
🇺🇸 US 🇨🇦 CA
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OSC Fits: 2.4L L4 13146
🇺🇸 US 🇨🇦 CA
Upgraded Design
Fitment notes — OSC 13146
Upgraded Design
MAIN RADIATOR
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UAC Fits: 2.4L L4 RA13146C
🇺🇸 US 🇨🇦 CA
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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.

Radiator Cap

Brand Part Number Markets Notes Buy
ACDELCO Fits: 2.4L L4 RC124
🇺🇸 US 🇨🇦 CA
GM Original Equipment
Fitment notes — ACDELCO RC124
GM Original Equipment
SIDE CAP
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PROFESSIONAL PARTS SWEDEN Fits: 2.4L L4 21342353
🇺🇸 US 🇨🇦 CA
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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.

Radiator Drain Petcock

Brand Part Number Markets Notes Buy
DORMAN Fits: 2.4L L4 61136
🇺🇸 US 🇨🇦 CA
Screw-in with O-ring. M15-1.5
Fitment notes — DORMAN 61136
Screw-in with O-ring. M15-1.5
PlasticScrew-In Type
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This table covers the petcocks used to drain the radiator.

Radiator Fan Assembly

Economy

Brand Part Number Markets Notes Buy
SKP Popular Fits: 2.4L L4 SK621441
🇺🇸 US 🇨🇦 CA
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GPD Fits: 2.4L L4 2811869
🇺🇸 US 🇨🇦 CA
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Standard Replacement

Brand Part Number Markets Notes Buy
TYC Popular Fits: 2.4L L4 622790
🇺🇸 US 🇨🇦 CA
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FOUR SEASONS Fits: 2.4L L4 76299
🇺🇸 US 🇨🇦 CA
Left
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GM GENUINE Fits: 2.4L L4 1581690
🇺🇸 US 🇨🇦 CA
Left9 BLADES
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GM GENUINE Fits: 2.4L L4 1581691
🇺🇸 US 🇨🇦 CA
Right7 BLADES
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UAC Fits: 2.4L L4 FA50363C
🇺🇸 US 🇨🇦 CA
Radiator-Condenser Fan Assembly
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VDO / CONTINENTAL Fits: 2.4L L4 FA70830
🇺🇸 US 🇨🇦 CA
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This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.

Radiator Fan Motor

Brand Part Number Markets Notes Buy
VEMO Fits: 2.4L L4 V51010034
🇺🇸 US 🇨🇦 CA
Left
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VEMO Fits: 2.4L L4 V51010035
🇺🇸 US 🇨🇦 CA
Fits Right
Fitment notes — VEMO V51010035
Fits:
Right
or:
Left
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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.

Radiator Hose

Brand Part Number Markets Notes Buy
CONTINENTAL Popular Fits: 2.4L L4 67060
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — CONTINENTAL 67060
Molded
LeftPremiumInverter Cooling System
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GATES Popular Fits: 2.4L L4 23975
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — GATES 23975
Molded
UpperPipe To EnginePremium
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CONTINENTAL Fits: 2.4L L4 67067
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — CONTINENTAL 67067
Molded
UpperEngine To PipePremium
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CONTINENTAL Fits: 2.4L L4 67068
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — CONTINENTAL 67068
Molded
UpperPipe To RadiatorPremium
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CONTINENTAL Fits: 2.4L L4 66646
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — CONTINENTAL 66646
Molded
Lower
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CONTINENTAL Fits: 2.4L L4 66645
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — CONTINENTAL 66645
Molded
UpperBase Model
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DAYCO Fits: 2.4L L4 72755
🇺🇸 US 🇨🇦 CA
Curved
Fitment notes — DAYCO 72755
Curved
UpperPipe To EnginePremium
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GATES Fits: 2.4L L4 24514
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — GATES 24514
Molded
UpperRadiator To PipePremium
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GATES Fits: 2.4L L4 23732
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — GATES 23732
Molded
UpperBase Model
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GM GENUINE Fits: 2.4L L4 20877113
🇺🇸 US 🇨🇦 CA
UpperBase Model
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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.

Radiator Insulator

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.4L L4 13306606
🇺🇸 US 🇨🇦 CA
Upper
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This table covers the Radiator insulators.

Radiator Mount

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.4L L4 52493483
🇺🇸 US 🇨🇦 CA
Lower
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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.

Radiator Mount Bushing

Brand Part Number Markets Notes Buy
DORMAN Fits: 2.4L L4 926280
🇺🇸 US 🇨🇦 CA
Lower
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SKP Fits: 2.4L L4 SK926280
🇺🇸 US 🇨🇦 CA
Lower
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ULTRA-POWER Fits: 2.4L L4, 2.4L L4 ELECTRIC/GAS 926280
🇺🇸 US 🇨🇦 CA
LOWERPK QTY: 2
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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.

Radiator Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.4L L4 22867535
🇺🇸 US 🇨🇦 CA
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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.

Radiator Upper Air Baffle Retainer / Clip

Brand Part Number Markets Notes Buy
DORMAN Fits: 2.4L L4 700365
🇺🇸 US 🇨🇦 CA
Outside Diameter: 0.688 InAir Box Clip
Fitment notes — DORMAN 700365
Outside Diameter: 0.688 InAir Box Clip
Fits:
LeftSide Air Baffle
or:
RightSide Air Baffle
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DORMAN Fits: 2.4L L4 963058
🇺🇸 US 🇨🇦 CA
Outside Diameter: 0.71 InAir Box Clip
Fitment notes — DORMAN 963058
Outside Diameter: 0.71 InAir Box Clip
Fits:
LeftSide Air Baffle
or:
RightSide Air Baffle
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This table covers the Radiator Upper Air Baffle retainers and clips.

Temperature Sender / Sensor

Economy

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Popular Fits: 2.4L L4 TX89T
🇺🇸 US 🇨🇦 CA
T-Series
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DORMAN Fits: 2.4L L4 926016
🇺🇸 US 🇨🇦 CA
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GPD Fits: 2.4L L4 1712489
🇺🇸 US 🇨🇦 CA
with 2 Terminal(s)with M12 x 1.5 Thread
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HOLSTEIN Fits: 2.4L L4 2CTS0318
🇺🇸 US 🇨🇦 CA
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UNITED MOTOR PRODUCTS Fits: 2.4L L4 CTS73
🇺🇸 US 🇨🇦 CA
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Full Service Kit

Brand Part Number Markets Notes Buy
WALKER PRODUCTS Popular Fits: 2.4L L4 21191118
🇺🇸 US 🇨🇦 CA
Full Service Kit
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Standard Replacement

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 2.4L L4 2134333
🇺🇸 US 🇨🇦 CA
White or BlackUse with Mating Connector PT1798
Fitment notes — GM GENUINE 2134333
White or BlackUse with Mating Connector PT1798Mating Connector Use 88987993
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STANDARD MOTOR PRODUCTS Popular Fits: 2.4L L4 TX89
🇺🇸 US 🇨🇦 CA
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BECK/ARNLEY Fits: 2.4L L4 1580733
🇺🇸 US 🇨🇦 CA
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BOSCH Fits: 2.4L L4 0280130014
🇺🇸 US 🇨🇦 CA
Engine Coolant Temperature Sensor
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DELPHI Fits: 2.4L L4 TS10076
🇺🇸 US 🇨🇦 CA
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FOUR SEASONS Fits: 2.4L L4 37858
🇺🇸 US 🇨🇦 CA
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HELLA Fits: 2.4L L4 009107271
🇺🇸 US 🇨🇦 CA
2-Pin ConnectorBolted
Fitment notes — HELLA 009107271
2-Pin ConnectorBoltedwith Seal
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NTK Fits: 2.4L L4 EF0075
🇺🇸 US 🇨🇦 CA
Connector Shape: Oblong
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WALKER PRODUCTS Fits: 2.4L L4 2111118
🇺🇸 US 🇨🇦 CA
Sensor Only
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WELLS Fits: 2.4L L4 5S1475
🇺🇸 US 🇨🇦 CA
Terminal Quantity: 2Terminal Type: Blade
Fitment notes — WELLS 5S1475
Terminal Quantity: 2Terminal Type: BladeWiring Harness Included: No
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Brand Part Number Markets Notes Buy
ULTRA-POWER Fits: 2.4L L4 ELECTRIC/GAS 5S1475
🇺🇸 US 🇨🇦 CA
Sender
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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.

Thermostat

Economy

Brand Part Number Markets Notes Buy
VEMO Fits: 2.4L L4 V40990024
🇺🇸 US 🇨🇦 CA
with Gasket
Fitment notes — VEMO V40990024
with Gasket
Temperature Range (Celsius): 82 C
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Heavy Duty

Brand Part Number Markets Notes Buy
MOTORAD Fits: 2.4L L4 5461180
🇺🇸 US 🇨🇦 CA
Ultra StatIncludes seal
Fitment notes — MOTORAD 5461180
Ultra StatIncludes seal
180 Degrees FOE Specified Temperature
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Premium

Brand Part Number Markets Notes Buy
MOTORAD Fits: 2.4L L4 7461180
🇺🇸 US 🇨🇦 CA
Fail-SafeIncludes seal
Fitment notes — MOTORAD 7461180
Fail-SafeIncludes seal
180 Degrees FOE Specified Temperature
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
GATES Popular Fits: 2.4L L4 33943
🇺🇸 US 🇨🇦 CA
OE Type
Fitment notes — GATES 33943
OE Type
180 DegreeOE TemperatureSeal Included
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GM GENUINE Popular Fits: 2.4L L4 131158
🇺🇸 US 🇨🇦 CA
Fits Premiumor Base ModelTrans. code 6T40
Fitment notes — GM GENUINE 131158
Fits:
Premiumor Base ModelTrans. code 6T406 speed Automatic trans.
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MOTORAD Popular Fits: 2.4L L4 461180
🇺🇸 US 🇨🇦 CA
Includes Seal
Fitment notes — MOTORAD 461180
Includes Seal
180 Degrees FOE Specified Temperature
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Amazon
AISIN Fits: 2.4L L4 THRGM0001
🇺🇸 US 🇨🇦 CA
Includes Thermostat Seal
Fitment notes — AISIN THRGM0001
Includes Thermostat Seal
82°C
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CALORSTAT Fits: 2.4L L4 TH688382J
🇺🇸 US 🇨🇦 CA
Includes 1 Rubber Gasket
Fitment notes — CALORSTAT TH688382J
Includes 1 Rubber Gasket
180.0 F Degrees
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GATES Fits: 2.4L L4 CO34953
🇺🇸 US 🇨🇦 CA
Coolant OutletIncludes Housing
Fitment notes — GATES CO34953
Coolant OutletIncludes Housing
Coolant Outlet Assembly180 DegreeOE TemperatureIncludes Housing, Seal
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MAHLE / CLEVITE Fits: 2.4L L4 TX12282
🇺🇸 US 🇨🇦 CA
Includes Gasket or Seal
Fitment notes — MAHLE / CLEVITE TX12282
Includes Gasket or Seal
Start to Open Temperature: 82 C
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MOTORAD Fits: 2.4L L4 5349KT
🇺🇸 US 🇨🇦 CA
Kit
Fitment notes — MOTORAD 5349KT
Kit
180 Degrees FOE Specified Temperature
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MOTORAD Fits: 2.4L L4 TA2009
🇺🇸 US 🇨🇦 CA
Includes upper and lower housings, seal
Fitment notes — MOTORAD TA2009
Includes upper and lower housings, seal
180 Degrees FOE Specified Temperature
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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.

Thermostat / Thermostat Housing / Water Outlet Seal

Brand Part Number Markets Notes Buy
FEL-PRO Popular Fits: 2.4L L4 35346
🇺🇸 US 🇨🇦 CA
Thermostat Seal
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FEL-PRO Popular Fits: 2.4L L4 36122
🇺🇸 US 🇨🇦 CA
Thermostat Housing Seal
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MAHLE / CLEVITE Popular Fits: 2.4L L4 C31200
🇺🇸 US 🇨🇦 CA
Engine Coolant Outlet O-RingMolded Rubber
Fitment notes — MAHLE / CLEVITE C31200
Engine Coolant Outlet O-RingMolded Rubber
Square Cut O-RingThermostat Housing Seal
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APEX Fits: 2.4L L4 AWO2385
🇺🇸 US 🇨🇦 CA
Water Inlet SealThermostat Seal
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APEX Fits: 2.4L L4 AWO2030
🇺🇸 US 🇨🇦 CA
Thermostat Seal
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CALORSTAT Fits: 2.4L L4 J38
🇺🇸 US 🇨🇦 CA
Thermostat Seal
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ELRING Fits: 2.4L L4 446240
🇺🇸 US 🇨🇦 CA
Fits Engine SidedAWD
Fitment notes — ELRING 446240
Fits:
Engine SidedAWDPremiumBody code: GD69
or:
Engine SidedAWDBase ModelBody code: GC69
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ELRING Fits: 2.4L L4 446020
🇺🇸 US 🇨🇦 CA
Material: EPDM ethylene propylene diene Monomer (M-class) rubber
Fitment notes — ELRING 446020
Material: EPDM ethylene propylene diene Monomer (M-class) rubber
Fits:
AWDPremiumBody code: GD69Thermostat Sealor AWDBase ModelBody code: GC69Thermostat Seal
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GM GENUINE Fits: 2.4L L4 3522676
🇺🇸 US 🇨🇦 CA
Fits PremiumSquare Cut
Fitment notes — GM GENUINE 3522676
Fits:
PremiumSquare CutThermostat Sealor Base ModelTrans.Code 6T40Square CutThermostat Seal
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MAHLE / CLEVITE Fits: 2.4L L4 C31998
🇺🇸 US 🇨🇦 CA
Molded Rubber
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VICTOR REINZ Fits: 2.4L L4 711357400
🇺🇸 US 🇨🇦 CA
Water Outlet Seal
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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.

Thermostat Housing / Water Outlet

Economy

Brand Part Number Markets Notes Buy
SKP Popular Fits: 2.4L L4 SK9022094
🇺🇸 US 🇨🇦 CA
CoverWater Outlet
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DORMAN Fits: 2.4L L4 9022094
🇺🇸 US 🇨🇦 CA
Thermostat Housing
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Standard Replacement

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 2.4L L4 12597172
🇺🇸 US 🇨🇦 CA
Fits PremiumThermostat Housingor Base Model
Fitment notes — GM GENUINE 12597172
Fits:
PremiumThermostat Housingor Base ModelTrans.Code 6T40Thermostat Housing
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FOUR SEASONS Fits: 2.4L L4 85349
🇺🇸 US 🇨🇦 CA
UpperWater Outlet
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GATES Fits: 2.4L L4 CO34933
🇺🇸 US 🇨🇦 CA
Thermostat CoverWater Outlet
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GATES Fits: 2.4L L4 CO34975
🇺🇸 US 🇨🇦 CA
Thermostat Housing
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MOTORAD Fits: 2.4L L4 CH5349
🇺🇸 US 🇨🇦 CA
UpperWater Outlet
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MOTORAD Fits: 2.4L L4 CH2009
🇺🇸 US 🇨🇦 CA
Fits LowerThermostat Housing
Fitment notes — MOTORAD CH2009
Fits:
LowerThermostat Housing
or:
LowerWater Outlet
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VEMO Fits: 2.4L L4 V51990013
🇺🇸 US 🇨🇦 CA
LowerThermostat Housing
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This table covers the housings and outlets the thermostat sits in.

Water Inlet Gasket

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.4L L4 90537471
🇺🇸 US 🇨🇦 CA
Fits PremiumROUND WILL CHANGE TO OBLONG SHAPE WHEN ASSEMBLED
Fitment notes — GM GENUINE 90537471
Fits:
PremiumROUND WILL CHANGE TO OBLONG SHAPE WHEN ASSEMBLED
or:
Base ModelTrans.Code 6T406 Speed Automatic Trans.ROUND WILL CHANGE TO OBLONG SHAPE WHEN ASSEMBLED
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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.

Water Pump

Economy

Brand Part Number Markets Notes Buy
SKP Popular Fits: 2.4L L4 SK1307350
🇺🇸 US 🇨🇦 CA
Gas
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CARDONE Fits: 2.4L L4 5W7004
🇺🇸 US 🇨🇦 CA
Engine Auxiliary
Fitment notes — CARDONE 5W7004
Engine Auxiliary
Heater
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CARDONE Fits: 2.4L L4 5W7005
🇺🇸 US 🇨🇦 CA
Engine Auxiliary
Fitment notes — CARDONE 5W7005
Engine Auxiliary
To Radiator
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FVP Fits: 2.4L L4 US5092
🇺🇸 US 🇨🇦 CA
View on
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FVP Fits: 2.4L L4 US5092G
🇺🇸 US 🇨🇦 CA
Includes Gear and Back Housing
View on
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US MOTOR WORKS Fits: 2.4L L4 US5092
🇺🇸 US 🇨🇦 CA
View on
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US MOTOR WORKS Fits: 2.4L L4 US5092G
🇺🇸 US 🇨🇦 CA
Includes Gear and Back Housing
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VAICO Fits: 2.4L L4 V4050043
🇺🇸 US 🇨🇦 CA
Material Type: Metal Impeller
Fitment notes — VAICO V4050043
Material Type: Metal Impeller
with Sprocketwith Seal
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Standard Replacement

Brand Part Number Markets Notes Buy
GATES Popular Fits: 2.4L L4 43529
🇺🇸 US 🇨🇦 CA
View on
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GM GENUINE Popular Fits: 2.4L L4 251751
🇺🇸 US 🇨🇦 CA
Fits Premiumor Base ModelTrans. code 6T40
Fitment notes — GM GENUINE 251751
Fits:
Premiumor Base ModelTrans. code 6T406 speed Automatic trans.
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GMB Popular Fits: 2.4L L4 1307350AH
🇺🇸 US 🇨🇦 CA
Includes Housing and Timing Chain Sprocket
Fitment notes — GMB 1307350AH
Includes Housing and Timing Chain Sprocket
Primary Pump
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MELLING Popular Fits: 2.4L L4 MWP526WS
🇺🇸 US 🇨🇦 CA
Includes Water Pump Drive Sprocket
Fitment notes — MELLING MWP526WS
Includes Water Pump Drive Sprocket
Before removing the Water Pump it is recommended to install GM Tool # J43651 or equivalent to keep the Timing Chain and Gears properly synchronized
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ACDELCO Fits: 2.4L L4 252821
🇺🇸 US 🇨🇦 CA
GoldDoes Not Include Mount Bolts
Fitment notes — ACDELCO 252821
GoldDoes Not Include Mount Boltswithout Housing
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AISIN Fits: 2.4L L4 WPGM700
🇺🇸 US 🇨🇦 CA
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DAYCO Fits: 2.4L L4 DP208
🇺🇸 US 🇨🇦 CA
without housing
Fitment notes — DAYCO DP208
without housing
Timing Belt Should be Replaced with Water Pump
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DAYCO Fits: 2.4L L4 DEP1052
🇺🇸 US 🇨🇦 CA
PremiumAuxiliary
Fitment notes — DAYCO DEP1052
PremiumAuxiliaryInverter Cooler Water Pump
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DAYCO Fits: 2.4L L4 DEP1051
🇺🇸 US 🇨🇦 CA
HeaterPremium
Fitment notes — DAYCO DEP1051
HeaterPremiumAuxiliary
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GATES Fits: 2.4L L4 41546E
🇺🇸 US 🇨🇦 CA
Electric
Fitment notes — GATES 41546E
Electric
From Air SeparatorPremiumAuxiliary
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GMB Fits: 2.4L L4 1307350
🇺🇸 US 🇨🇦 CA
Primary Pump
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GMB Fits: 2.4L L4 1309050
🇺🇸 US 🇨🇦 CA
Premiumfor Hybrid Generator Cooling
Fitment notes — GMB 1309050
Premiumfor Hybrid Generator CoolingAuxiliary
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GMB Fits: 2.4L L4 1309040
🇺🇸 US 🇨🇦 CA
PremiumFor HVAC System
Fitment notes — GMB 1309040
PremiumFor HVAC SystemAuxiliary
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INA Fits: 2.4L L4 XW0301
🇺🇸 US 🇨🇦 CA
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PIERBURG Fits: 2.4L L4 728509020
🇺🇸 US 🇨🇦 CA
Includes Cover & Gaskets
Fitment notes — PIERBURG 728509020
Includes Cover & Gaskets
Premium
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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.

Water Pump Gasket

Brand Part Number Markets Notes Buy
FEL-PRO Popular Fits: 2.4L L4 ES71282
🇺🇸 US 🇨🇦 CA
Gasket Kit
Fitment notes — FEL-PRO ES71282
Gasket Kit
To Block
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MAHLE / CLEVITE Popular Fits: 2.4L L4 GS33776
🇺🇸 US 🇨🇦 CA
Contains All Water Pump Gaskets and SealsMolded Rubber
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VICTOR REINZ Popular Fits: 2.4L L4 181007101
🇺🇸 US 🇨🇦 CA
Mounting Set
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APEX Fits: 2.4L L4 AWP3182
🇺🇸 US 🇨🇦 CA
Cover
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APEX Fits: 2.4L L4 AWP3181
🇺🇸 US 🇨🇦 CA
Mounting
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ELRING Fits: 2.4L L4 061670
🇺🇸 US 🇨🇦 CA
Fits Engine SidedAWD
Fitment notes — ELRING 061670
Fits:
Engine SidedAWDPremiumBody code: GD69
or:
Engine SidedAWDBase ModelBody code: GC69
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ELRING Fits: 2.4L L4 483760
🇺🇸 US 🇨🇦 CA
Fits AWDPremium
Fitment notes — ELRING 483760
Fits:
AWDPremiumBody code: GD69
or:
AWDBase ModelBody code: GC69
View on
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ELRING Fits: 2.4L L4 446160
🇺🇸 US 🇨🇦 CA
Fits AWDPremium
Fitment notes — ELRING 446160
Fits:
AWDPremiumBody code: GD69
or:
AWDBase ModelBody code: GC69
View on
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FEL-PRO Fits: 2.4L L4 35724
🇺🇸 US 🇨🇦 CA
To BlockCover
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FEL-PRO Fits: 2.4L L4 35721
🇺🇸 US 🇨🇦 CA
To Block
View on
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GM GENUINE Fits: 2.4L L4 90537915
🇺🇸 US 🇨🇦 CA
Fits PremiumCoveror Base Model
Fitment notes — GM GENUINE 90537915
Fits:
PremiumCoveror Base ModelTrans.Code 6T406 speed Automatic trans.Cover
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GM GENUINE Fits: 2.4L L4 2512053
🇺🇸 US 🇨🇦 CA
View on
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VICTOR REINZ Fits: 2.4L L4 711418500
🇺🇸 US 🇨🇦 CA
Cover
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VICTOR REINZ Fits: 2.4L L4 711418400
🇺🇸 US 🇨🇦 CA
Mounting
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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.

Water Pump Gear

Brand Part Number Markets Notes Buy
MELLING Popular Fits: 2.4L L4 S911
🇺🇸 US 🇨🇦 CA
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CLOYES Fits: 2.4L L4 S911
🇺🇸 US 🇨🇦 CA
View on
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FVP Fits: 2.4L L4 S911
🇺🇸 US 🇨🇦 CA
View on
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GM GENUINE Fits: 2.4L L4 90537298
🇺🇸 US 🇨🇦 CA
Fits Premiumor Base ModelTrans. code 6T40
Fitment notes — GM GENUINE 90537298
Fits:
Premiumor Base ModelTrans. code 6T406 speed Automatic trans.
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PREFERRED COMPONENTS INC Fits: 2.4L L4 G55911
🇺🇸 US 🇨🇦 CA
View on
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This table covers the Water Pump gears.

Water Pump Housing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.4L L4 90537266
🇺🇸 US 🇨🇦 CA
Engine Coolant Water Pump Cover
Fitment notes — GM GENUINE 90537266
Engine Coolant Water Pump Cover
Fits:
Premiumor Base ModelTrans. code 6T406 speed Automatic trans.
View on
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This table covers the Water Pump housings.

Buying Cooling System Parts for a 2016 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 Temperature Sender / Sensor .

Frequently Asked Questions

How many cooling system parts fit the 2016 Buick Regal?

Our catalog currently lists 185 cooling system parts for the 2016 Buick Regal across 33 subcategories and 53 brands, covering all 3 engine options (2.0L L4 Turbocharged, 2.4L L4 and 2.4L L4 ELECTRIC/GAS). Each part is matched to the engine(s) it fits.

Do cooling system parts differ between 2016 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 2016 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 2016 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 2016 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 2016 Buick Regal

Cooling System Parts for Other Buick Regal 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.