2002 Buick Century Cooling System Parts

Engine:
3.1L V6

155 Cooling system parts are listed for the 2002 Buick Century, in 26 part types, covering the 3.1L V6 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.

The cooling system system on the 2002 Buick Century 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 Temperature Sender / Sensor (21 parts), Thermostat (19 parts) and Coolant / Antifreeze (16 parts). The other 23 part types cover the remaining 99 parts.

Coolant / Antifreeze

Compatible With All Colors

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

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

Brand Part Number Markets Notes Buy
PRESTONE Popular AF2100
🇺🇸 US 🇨🇦 CA
All Vehicles10yr/300k mi
Fitment notes — PRESTONE AF2100
All Vehicles10yr/300k mi1 GallonExtended Life
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PEAK 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 PXA1GAL
🇺🇸 US 🇨🇦 CA
1 GallonGlobal Lifetime
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PRESTONE AFMAX
🇺🇸 US 🇨🇦 CA
Max Universal1 Gallon
Fitment notes — PRESTONE AFMAX
Max Universal1 Gallon15 Year/350k Miles
View on
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Standard Replacement

Brand Part Number Markets Notes Buy
ACDELCO Popular 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 ZXEL1
🇺🇸 US 🇨🇦 CA
Dex-Cool Orange1 Gallon
Fitment notes — VALVOLINE ZXEL1
Dex-Cool Orange1 GallonOAT
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AISIN ACD005
🇺🇸 US 🇨🇦 CA
OrangeOAT
Fitment notes — AISIN ACD005
OrangeOAT
(Type: Prediluted)
View on
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FVP DEX5050GAL
🇺🇸 US 🇨🇦 CA
Extended Life Blend1 Gallon
Fitment notes — FVP DEX5050GAL
Extended Life Blend1 GallonOrangeOAT
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PRESTONE AF3400
🇺🇸 US 🇨🇦 CA
Prime OrangeOrange Compatible
Fitment notes — PRESTONE AF3400
Prime OrangeOrange CompatibleExtended Life1 Gallon ConcentrateOAT
View on
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PRESTONE AF850
🇺🇸 US 🇨🇦 CA
DEX-Cool Extended Life1 Gallon
Fitment notes — PRESTONE AF850
DEX-Cool Extended Life1 GallonOrangeOAT
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VALVOLINE 888374
🇺🇸 US 🇨🇦 CA
American Vehicle Orange1 Gallon
Fitment notes — VALVOLINE 888374
American Vehicle Orange1 Gallon
(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
DORMAN 902112
🇺🇸 US 🇨🇦 CA
View on
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This table covers the bleeders used to purge air from the coolant circuit.

Coolant Hose / Pipe

Brand Part Number Markets Notes Buy
ACDELCO Popular 14156S
🇺🇸 US 🇨🇦 CA
Professional / GoldMolded
View on
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GATES Popular 19026
🇺🇸 US 🇨🇦 CA
Molded19/32" x 6"
View on
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CONTINENTAL 63121
🇺🇸 US 🇨🇦 CA
Molded
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DAYCO 71692
🇺🇸 US 🇨🇦 CA
Curved
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GM GENUINE 10182356
🇺🇸 US 🇨🇦 CA
Thermostat To Pipe
View on
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GM GENUINE 12590279
🇺🇸 US 🇨🇦 CA
Part of Lower IntakeUse Sealant 19332211 (USA) or 10953488 (Canada)
Fitment notes — GM GENUINE 12590279
Part of Lower IntakeUse Sealant 19332211 (USA) or 10953488 (Canada)Thermostat Bypass
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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 ADM1403
🇺🇸 US 🇨🇦 CA
Bypass pipe
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FEL-PRO 70799
🇺🇸 US 🇨🇦 CA
O-Ring Type
Fitment notes — FEL-PRO 70799
O-Ring Type
Bypass pipe
View on
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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 Level Sensor

Economy

Brand Part Number Markets Notes Buy
HOLSTEIN 2CTS0221
🇺🇸 US 🇨🇦 CA
View on
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Standard Replacement

Brand Part Number Markets Notes Buy
GPD Popular 1712532
🇺🇸 US 🇨🇦 CA
Engine Coolant Level Sensor
View on
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Brand Part Number Markets Notes Buy
ULTRA-POWER Popular 5S1449
🇺🇸 US 🇨🇦 CA
View on
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AUTOTECNICA GM1317731
🇺🇸 US 🇨🇦 CA
Module - Mounted on Radiator
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NTK EE0017
🇺🇸 US 🇨🇦 CA
View on
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STANDARD MOTOR PRODUCTS FLS24
🇺🇸 US 🇨🇦 CA
View on
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WELLS 5S1449
🇺🇸 US 🇨🇦 CA
Mounting Hardware Included: No
View on
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This table covers the Coolant Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.

Coolant Reservoir

Brand Part Number Markets Notes Buy
DORMAN Popular 603033
🇺🇸 US 🇨🇦 CA
View on
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GM GENUINE 10333858
🇺🇸 US 🇨🇦 CA
View on
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GPD 2411209
🇺🇸 US 🇨🇦 CA
View on
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SKP SK603033
🇺🇸 US 🇨🇦 CA
Front
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TECHPRO GM3014106
🇺🇸 US 🇨🇦 CA
View on
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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 82724
🇺🇸 US 🇨🇦 CA
Snap On Cap
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DORMAN 54217
🇺🇸 US 🇨🇦 CA
without Dex-Cool Cap
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MOTORAD T167
🇺🇸 US 🇨🇦 CA
Standard
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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 10427340
🇺🇸 US 🇨🇦 CA
LWR
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This table covers the Coolant Reservoir retainers and clips.

Cooling Fan Control Module

Brand Part Number Markets Notes Buy
US MOTOR WORKS 16749
🇺🇸 US 🇨🇦 CA
Econo Control
Fitment notes — US MOTOR WORKS 16749
Econo Control
Requires 16763 Single Relay Harness
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US MOTOR WORKS 16789
🇺🇸 US 🇨🇦 CA
Better Control
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US MOTOR WORKS 16795
🇺🇸 US 🇨🇦 CA
Best Control
View on
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This table covers the Cooling Fan control modules.

Cooling System Tester Adapter

Brand Part Number Markets Notes Buy
ACDELCO 12A01
🇺🇸 US 🇨🇦 CA
ProfessionalIncluded In Tester
Fitment notes — ACDELCO 12A01
ProfessionalIncluded In Tester
Cooling System PressureRadiator Cap Adapter
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GATES 31413
🇺🇸 US 🇨🇦 CA
Cooling System PressureRadiator Cap
Fitment notes — GATES 31413
Cooling System PressureRadiator CapSystem Adapter on Tester
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MOTORAD 3003
🇺🇸 US 🇨🇦 CA
StandardIncluded In Tester Kit
Fitment notes — MOTORAD 3003
StandardIncluded In Tester KitRadiator Cap Adapter
Cooling System PressureRadiator Cap Adapter
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This table covers the adapters used to pressure-test this cooling system.

Radiator

Brand Part Number Markets Notes Buy
SPECTRA PREMIUM Popular CU2343
🇺🇸 US 🇨🇦 CA
0.625 IN Core Thickness
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TYC Popular 2343
🇺🇸 US 🇨🇦 CA
PRIMARY
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AGILITY 8012343
🇺🇸 US 🇨🇦 CA
View on
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DENSO 2219009
🇺🇸 US 🇨🇦 CA
View on
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FVP RAD2343
🇺🇸 US 🇨🇦 CA
View on
Amazon
KOYORAD A2343
🇺🇸 US 🇨🇦 CA
without Supercharger
View on
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OSC 2343
🇺🇸 US 🇨🇦 CA
View on
Amazon
UAC RA2343C
🇺🇸 US 🇨🇦 CA
View on
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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

Locking Replacement

Brand Part Number Markets Notes Buy
GATES 31516
🇺🇸 US 🇨🇦 CA
Safety Release Radiator Cap
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MOTORAD ST16V
🇺🇸 US 🇨🇦 CA
Safety Lever
Fitment notes — MOTORAD ST16V
Safety Lever
Relief Pressure 16 lbs
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Standard Replacement

Brand Part Number Markets Notes Buy
ACDELCO Popular RC27
🇺🇸 US 🇨🇦 CA
GM Original Equipmentwith Handle, with Turning Ears
Fitment notes — ACDELCO RC27
GM Original Equipmentwith Handle, with Turning EarsCould be plastic or metal construction
without DEX-Cool LABEL15 LBSMetalBlack
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GATES Popular 31523
🇺🇸 US 🇨🇦 CA
OE Type
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ACDELCO RC96
🇺🇸 US 🇨🇦 CA
GM Original Equipment
Fitment notes — ACDELCO RC96
GM Original Equipment
with DEX-Cool LabelMetal
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MOTORAD T16V
🇺🇸 US 🇨🇦 CA
Standard
Fitment notes — MOTORAD T16V
Standard
Relief Pressure 16 lbs
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SKP SK10231
🇺🇸 US 🇨🇦 CA
Pressure Rating 16 psi
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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 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
DORMAN Popular 620613
🇺🇸 US 🇨🇦 CA
View on
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GPD 2811514
🇺🇸 US 🇨🇦 CA
View on
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TECHPRO GM3115129
🇺🇸 US 🇨🇦 CA
View on
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Standard Replacement

Brand Part Number Markets Notes Buy
AGILITY 6012107
🇺🇸 US 🇨🇦 CA
View on
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FOUR SEASONS 75259
🇺🇸 US 🇨🇦 CA
View on
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UAC FA50467C
🇺🇸 US 🇨🇦 CA
Radiator-Condenser Fan Assembly
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VDO / CONTINENTAL FA70157
🇺🇸 US 🇨🇦 CA
View on
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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
FOUR SEASONS Popular 35656
🇺🇸 US 🇨🇦 CA
Left
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GPD Popular 2311317
🇺🇸 US 🇨🇦 CA
Driver Side
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FOUR SEASONS 35389
🇺🇸 US 🇨🇦 CA
Right
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TYC 630070
🇺🇸 US 🇨🇦 CA
Fits Right
Fitment notes — TYC 630070
Fits:
Right
or:
Left
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VDO / CONTINENTAL PM540
🇺🇸 US 🇨🇦 CA
Mounting Method: Flange MountedRotation: Clockwise (Right)
Fitment notes — VDO / CONTINENTAL PM540
Mounting Method: Flange MountedRotation: Clockwise (Right)
Passenger Side
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VDO / CONTINENTAL PM538
🇺🇸 US 🇨🇦 CA
Motor Diameter: 3.250 In
Fitment notes — VDO / CONTINENTAL PM538
Motor Diameter: 3.250 In
Driver Side
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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
DAYCO Popular 71850
🇺🇸 US 🇨🇦 CA
Curved
Fitment notes — DAYCO 71850
Curved
UPPERCUT TO FIT
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GATES Popular 22344
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — GATES 22344
Molded
Upper
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ACDELCO 24377L
🇺🇸 US 🇨🇦 CA
Professional / GoldMolded
Fitment notes — ACDELCO 24377L
Professional / GoldMolded
Lower
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ACDELCO 26346X
🇺🇸 US 🇨🇦 CA
Professional / GoldMolded
Fitment notes — ACDELCO 26346X
Professional / GoldMolded
Upper
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CONTINENTAL 62549
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — CONTINENTAL 62549
Molded
LowerPrimary # 1
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CONTINENTAL 62088
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — CONTINENTAL 62088
Molded
Upper
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DAYCO 72039
🇺🇸 US 🇨🇦 CA
Curved
Fitment notes — DAYCO 72039
Curved
Lower
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GATES 22345
🇺🇸 US 🇨🇦 CA
Molded
Fitment notes — GATES 22345
Molded
Lower
View on
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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 Upper Air Baffle Retainer / Clip

Brand Part Number Markets Notes Buy
DORMAN 45814
🇺🇸 US 🇨🇦 CA
UpperRadiator Seal
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This table covers the Radiator Upper Air Baffle retainers and clips.

Shroud Trim Retainer / Clip

Brand Part Number Markets Notes Buy
DORMAN 963094D
🇺🇸 US 🇨🇦 CA
View on
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This table covers the Shroud Trim retainers and clips.

Temperature Sender / Sensor

Economy

Brand Part Number Markets Notes Buy
SKP Popular SKTX3
🇺🇸 US 🇨🇦 CA
2 PIN
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STANDARD MOTOR PRODUCTS Popular TX3T
🇺🇸 US 🇨🇦 CA
T-SeriesRound Connector
Fitment notes — STANDARD MOTOR PRODUCTS TX3T
T-SeriesRound Connector
with 2 Blade Terminals
View on
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GPD 1711697
🇺🇸 US 🇨🇦 CA
with Oval Connectorwith 2 Terminal(s)
Fitment notes — GPD 1711697
with Oval Connectorwith 2 Terminal(s)with 3/8 in-18 Threads
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HOLSTEIN 2CTS0002
🇺🇸 US 🇨🇦 CA
View on
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SKP SK5S1018
🇺🇸 US 🇨🇦 CA
Coarse Thread
View on
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STANDARD MOTOR PRODUCTS TX66T
🇺🇸 US 🇨🇦 CA
T-Series
Fitment notes — STANDARD MOTOR PRODUCTS TX66T
T-Series
with 3 Blade Terminals
View on
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UNITED MOTOR PRODUCTS CTS3
🇺🇸 US 🇨🇦 CA
Sender
Fitment notes — UNITED MOTOR PRODUCTS CTS3
Sender
with 2 Pin Terminals
View on
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UNITED MOTOR PRODUCTS CTS43
🇺🇸 US 🇨🇦 CA
with 3 Pin Terminals
View on
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Full Service Kit

Brand Part Number Markets Notes Buy
WALKER PRODUCTS 21191039
🇺🇸 US 🇨🇦 CA
Full Service KitConnector Shape: Circle
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Standard Replacement

Brand Part Number Markets Notes Buy
ACDELCO Popular 1551107
🇺🇸 US 🇨🇦 CA
Gold
Fitment notes — ACDELCO 1551107
Gold
2 BLADE TERMINAL
View on
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FOUR SEASONS Popular 36403
🇺🇸 US 🇨🇦 CA
2 BLADE TERMINAL
View on
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STANDARD MOTOR PRODUCTS Popular TX3
🇺🇸 US 🇨🇦 CA
Round Connector
Fitment notes — STANDARD MOTOR PRODUCTS TX3
Round Connector
with 2 Blade Terminals
View on
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BECK/ARNLEY 1580743
🇺🇸 US 🇨🇦 CA
View on
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DELPHI TS10032
🇺🇸 US 🇨🇦 CA
View on
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FOUR SEASONS 36445
🇺🇸 US 🇨🇦 CA
Round Connector
Fitment notes — FOUR SEASONS 36445
Round Connector
3 Blade Terminal
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GM GENUINE 213815
🇺🇸 US 🇨🇦 CA
3 blade terminalwith Indicator Switch
View on
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NTK EF0004
🇺🇸 US 🇨🇦 CA
Sensor Only
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ROSTRA 680014
🇺🇸 US 🇨🇦 CA
Sender
Fitment notes — ROSTRA 680014
Sender
with gaugewith 3 blade terminals
View on
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STANDARD MOTOR PRODUCTS TX66
🇺🇸 US 🇨🇦 CA
with 3 Blade Terminals
View on
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WALKER PRODUCTS 2111039
🇺🇸 US 🇨🇦 CA
Sensor Only
View on
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WELLS 1T1043
🇺🇸 US 🇨🇦 CA
with 3 Blade Terminalswith Gauge
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.

Thermostat

Heavy Duty

Brand Part Number Markets Notes Buy
MOTORAD 5267195
🇺🇸 US 🇨🇦 CA
Ultra StatIncludes seal
Fitment notes — MOTORAD 5267195
Ultra StatIncludes seal
195 Degrees FOE Specified Temperature
View on
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MOTORAD 5166KTUS
🇺🇸 US 🇨🇦 CA
Includes housing, Ultra Stat thermostat and sealKit
Fitment notes — MOTORAD 5166KTUS
Includes housing, Ultra Stat thermostat and sealKitUltra Stat
195 Degrees FOE Specified Temperature
View on
Amazon

Performance

Brand Part Number Markets Notes Buy
MOTORAD 2067180
🇺🇸 US 🇨🇦 CA
High FlowIncludes seal
Fitment notes — MOTORAD 2067180
High FlowIncludes seal
180 Degrees FAlternate Temperature Option
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MOTORAD 2067195
🇺🇸 US 🇨🇦 CA
High FlowIncludes seal
Fitment notes — MOTORAD 2067195
High FlowIncludes seal
195 Degrees FOE Specified Temperature
View on
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Premium

Brand Part Number Markets Notes Buy
MOTORAD 7267195
🇺🇸 US 🇨🇦 CA
Fail-SafeIncludes seal
Fitment notes — MOTORAD 7267195
Fail-SafeIncludes seal
195 Degrees FOE Specified Temperature
View on
Amazon
MOTORAD 7267180
🇺🇸 US 🇨🇦 CA
Fail-SafeIncludes seal
Fitment notes — MOTORAD 7267180
Fail-SafeIncludes seal
180 Degrees FAlternate Temperature Option
View on
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MOTORAD 5166KTFS
🇺🇸 US 🇨🇦 CA
Fail-SafeIncludes Housing, and Seal
Fitment notes — MOTORAD 5166KTFS
Fail-SafeIncludes Housing, and SealKit
195 Degrees FOE Specified Temperature
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
GATES Popular 33329
🇺🇸 US 🇨🇦 CA
OE Type
Fitment notes — GATES 33329
OE Type
195 DegreeOE TemperatureSeal Included
View on
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MOTORAD Popular 267180
🇺🇸 US 🇨🇦 CA
Includes Seal
Fitment notes — MOTORAD 267180
Includes Seal
180 Degrees FAlternate Temperature Option
View on
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MOTORAD Popular 267195
🇺🇸 US 🇨🇦 CA
Includes Seal
Fitment notes — MOTORAD 267195
Includes Seal
195 Degrees FOE Specified Temperature
View on
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MOTORAD Popular 267160
🇺🇸 US 🇨🇦 CA
Includes Seal
Fitment notes — MOTORAD 267160
Includes Seal
160 Degrees FAlternate Temperature Option
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AISIN THRGM0004
🇺🇸 US 🇨🇦 CA
Includes Thermostat Seal
Fitment notes — AISIN THRGM0004
Includes Thermostat Seal
91°
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CALORSTAT TH647091J
🇺🇸 US 🇨🇦 CA
Includes 1 Rubber Gasket
Fitment notes — CALORSTAT TH647091J
Includes 1 Rubber Gasket
196.0 Degreeswith Narrower Main Valve
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CALORSTAT TH647071J
🇺🇸 US 🇨🇦 CA
PerformanceIncludes 1 Rubber Gasket
Fitment notes — CALORSTAT TH647071J
PerformanceIncludes 1 Rubber Gasket
160.0 Degreeswith Narrower Main Valve
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CALORSTAT TH647091
🇺🇸 US 🇨🇦 CA
with by-pass valveHeight: 2.12 In
Fitment notes — CALORSTAT TH647091
with by-pass valveHeight: 2.12 InOpening Temp: 91 C / 196 Fwith OE No. 24507563
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GM GENUINE 131204
🇺🇸 US 🇨🇦 CA
195 Degree, with Seal
View on
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GM GENUINE 131124
🇺🇸 US 🇨🇦 CA
OE Temperature
Fitment notes — GM GENUINE 131124
OE Temperature
195 Degree, with Seal
View on
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MAHLE / CLEVITE TX34590D
🇺🇸 US 🇨🇦 CA
Includes Gasket or Seal
Fitment notes — MAHLE / CLEVITE TX34590D
Includes Gasket or Seal
Start to Open Temperature: 90C
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MOTORAD 5166KT
🇺🇸 US 🇨🇦 CA
Includes Housing, Thermostat and SealKit
Fitment notes — MOTORAD 5166KT
Includes Housing, Thermostat and SealKit
195 Degrees FOE Specified Temperature
View on
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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 35614
🇺🇸 US 🇨🇦 CA
Water Outlet Seal
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GATES Popular 33611
🇺🇸 US 🇨🇦 CA
Thermostat Seal - 1 23/32" x 1 59/64" x 1/8" (Grooved, Chamfered I.D.)
Fitment notes — GATES 33611
Thermostat Seal - 1 23/32" x 1 59/64" x 1/8" (Grooved, Chamfered I.D.)
Thermostat Seal
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APEX AWO2041
🇺🇸 US 🇨🇦 CA
O-RingWater Outlet Seal
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GM GENUINE 10226107
🇺🇸 US 🇨🇦 CA
with Lip, 46.80MM ODThermostat Seal
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MAHLE / CLEVITE C31156
🇺🇸 US 🇨🇦 CA
Molded Rubber
Fitment notes — MAHLE / CLEVITE C31156
Molded Rubber
O-Ring Type
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MAHLE / CLEVITE C31301
🇺🇸 US 🇨🇦 CA
Molded Rubber
Fitment notes — MAHLE / CLEVITE C31301
Molded Rubber
Thermostat Seal
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VICTOR REINZ 711355100
🇺🇸 US 🇨🇦 CA
Thermostat 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
DORMAN 9022004
🇺🇸 US 🇨🇦 CA
Thermostat Housing
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FAMOUS BRAND 85166
🇺🇸 US 🇨🇦 CA
Water Outlet HousingOutlet
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GPD 8241408
🇺🇸 US 🇨🇦 CA
Water Outlet
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Standard Replacement

Brand Part Number Markets Notes Buy
MOTORAD Popular CH5166
🇺🇸 US 🇨🇦 CA
Includes Seal
Fitment notes — MOTORAD CH5166
Includes Seal
Water Outlet
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FOUR SEASONS 85166
🇺🇸 US 🇨🇦 CA
Aluminum
Fitment notes — FOUR SEASONS 85166
Aluminum
Water Outlet
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This table covers the housings and outlets the thermostat sits in.

Water Pump

Economy

Brand Part Number Markets Notes Buy
FVP US5033
🇺🇸 US 🇨🇦 CA
View on
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SKP SK1301480
🇺🇸 US 🇨🇦 CA
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US MOTOR WORKS US5033
🇺🇸 US 🇨🇦 CA
View on
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WJB / INMOTION PARTS WU5033
🇺🇸 US 🇨🇦 CA
View on
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Standard Replacement

Brand Part Number Markets Notes Buy
ACDELCO Popular 252721
🇺🇸 US 🇨🇦 CA
GoldDoes Not Include Mount Bolts
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GATES Popular 41020
🇺🇸 US 🇨🇦 CA
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AISIN WPGM613V
🇺🇸 US 🇨🇦 CA
View on
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DAYCO DP960
🇺🇸 US 🇨🇦 CA
Serpentine Belt Driven
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GM GENUINE 251671
🇺🇸 US 🇨🇦 CA
with Gasket
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GMB 1301480
🇺🇸 US 🇨🇦 CA
View on
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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 35403
🇺🇸 US 🇨🇦 CA
To Block
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APEX AWP3010
🇺🇸 US 🇨🇦 CA
View on
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GM GENUINE 2512018
🇺🇸 US 🇨🇦 CA
(OEM Design)
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MAHLE / CLEVITE K30946
🇺🇸 US 🇨🇦 CA
Paper
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VICTOR REINZ 711467600
🇺🇸 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.

Water Pump Pulley

Brand Part Number Markets Notes Buy
DORMAN 300933
🇺🇸 US 🇨🇦 CA
View on
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This table covers the Water Pump pulleys. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt.

Water Pump Stud Kit

Brand Part Number Markets Notes Buy
DORMAN 902806
🇺🇸 US 🇨🇦 CA
View on
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This table covers the Water Pump Stud kits.

Buying Cooling System Parts for a 2002 Buick Century

On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.

  • Confirm you have the 3.1L V6 engine — every part on this page is matched to it.
  • Read the notes on each row for position, trim and spec qualifiers before you order.
  • Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
  • Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Temperature Sender / Sensor and Thermostat .

Frequently Asked Questions

How many cooling system parts fit the 2002 Buick Century?

Our catalog currently lists 155 cooling system parts for the 2002 Buick Century across 26 subcategories and 44 brands, covering the 3.1L V6 engine. Each part is matched to the engine(s) it fits.

What are the signs of cooling system problems on a 2002 Buick Century?

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 2002 Buick Century 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 2002 Buick Century?

Every part on this page is matched to the 3.1L V6 engine. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2002 Buick Century

Cooling System Parts for Other Buick Century 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.