This page lists 215 cooling system parts for the 2009 Buick Lucerne, across 24 part types, covering both the 3.9L V6 and the 4.6L V8. Every part shows its brand, manufacturer part number and fitment notes.
On the 2009 Buick Lucerne, 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. 83 parts of the 215 listed are Temperature Sender / Sensor (40 parts), Water Pump Gasket (24 parts) and Water Pump (19 parts). The other 21 part types cover the remaining 132 parts.
The 2009 Buick Lucerne was sold with both the 3.9L V6 and the 4.6L V8. 30 parts fit every engine; the other 185 are engine-specific. Each part shows which engine(s) it fits.
48 brands supply cooling system parts for the 2009 Buick Lucerne, led by GM GENUINE (17 parts), MOTORAD (16 parts) and GATES (15 parts), plus 45 more brands. Quality grades include Standard Replacement, Economy and Premium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2009 Buick Lucerne. 42 parts have it, including FVP MV5050GAL (Coolant / Antifreeze) and SPECTRA PREMIUM CU13267 (Radiator). Each part number opens a page with every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: all 2009 Lucerne engines | AF3055 | 🇺🇸 US 🇨🇦 CA | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: all 2009 Lucerne engines | MV5050GAL | 🇺🇸 US 🇨🇦 CA | Extended LifeAll Makes / All Models | View on Amazon |
| PEAK Fits: all 2009 Lucerne engines | BQA1GAL | 🇺🇸 US 🇨🇦 CA | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| PRESTONE Fits: all 2009 Lucerne engines | AF3100 | 🇺🇸 US 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| VALVOLINE Fits: all 2009 Lucerne engines | 719009 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: all 2009 Lucerne engines | AF2100 | 🇺🇸 US 🇨🇦 CA | All Vehicles10yr/300k mi | View on Amazon |
| PEAK Fits: all 2009 Lucerne engines | PKP1GAL | 🇺🇸 US 🇨🇦 CA | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK Fits: all 2009 Lucerne engines | PXA1GAL | 🇺🇸 US 🇨🇦 CA | 1 GallonGlobal Lifetime | View on Amazon |
| PRESTONE Fits: all 2009 Lucerne engines | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 2009 Lucerne engines | 105027 | 🇺🇸 US 🇨🇦 CA | DEX-Cool Extended LifeDexcool (with DE-Ionized Water) (with Bitterant) 1 Gallon | View on Amazon |
| VALVOLINE Popular Fits: all 2009 Lucerne engines | ZXEL1 | 🇺🇸 US 🇨🇦 CA | Dex-Cool Orange1 Gallon | View on Amazon |
| AISIN Fits: all 2009 Lucerne engines | ACD005 | 🇺🇸 US 🇨🇦 CA | OrangeOAT | View on Amazon |
| FVP Fits: all 2009 Lucerne engines | DEX5050GAL | 🇺🇸 US 🇨🇦 CA | Extended Life Blend1 Gallon | View on Amazon |
| PRESTONE Fits: all 2009 Lucerne engines | AF3400 | 🇺🇸 US 🇨🇦 CA | Prime OrangeOrange Compatible | View on Amazon |
| PRESTONE Fits: all 2009 Lucerne engines | AF850 | 🇺🇸 US 🇨🇦 CA | DEX-Cool Extended Life1 Gallon | View on Amazon |
| VALVOLINE Fits: all 2009 Lucerne engines | 888374 | 🇺🇸 US 🇨🇦 CA | 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 are listed for the 2009 Buick Lucerne, from PRESTONE, PEAK, VALVOLINE and 3 other brands. FVP MV5050GAL carries the "Popular" badge. All of them fit every engine offered in the 2009 Lucerne.
The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.
In the Economy grade, FVP, PEAK, PRESTONE and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.
The Premium section lists 4 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.
The Standard Replacement section lists 7 options from VALVOLINE, PRESTONE, ACDELCO and 2 other brands — built to original-equipment specification. ACDELCO 105027 is listed in this group.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 3.9L V6 | 14507S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| CONTINENTAL Fits: 3.9L V6 | 63173 | 🇺🇸 US 🇨🇦 CA | MoldedI.D. 0.750" | View on Amazon |
| DAYCO Fits: 4.6L V8 | 80215 | 🇺🇸 US 🇨🇦 CA | UpperOn Reservoir | View on Amazon |
| DAYCO Fits: 4.6L V8 | 87659 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| DORMAN Fits: 4.6L V8 | 626713 | 🇺🇸 US 🇨🇦 CA | LowerOverflow | View on Amazon |
| GATES Fits: 3.9L V6 | 20338 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| GATES Fits: 4.6L V8 | 18324 | 🇺🇸 US 🇨🇦 CA | Molded3/8" x 13 29/32" | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
7 Coolant Hose / Pipe parts are listed for the 2009 Buick Lucerne, from DAYCO, GATES, ACDELCO and 2 other brands.
This group includes ACDELCO 14507S, CONTINENTAL 63173 and DAYCO 80215 and the remaining parts above.
Coolant Hose / Pipe Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Fits: 3.9L V6 | C32205 | 🇺🇸 US 🇨🇦 CA | Molded 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.
This group shows a single part: MAHLE / CLEVITE C32205.
Coolant Hose Connector / Flange Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 3.9L V6 | 01867100 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MAHLE / CLEVITE Fits: 3.9L V6 | C32203 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
This table covers the seals at the Coolant Hose Connector / Flange. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
2 Coolant Hose Connector / Flange Seal parts for the 2009 Buick Lucerne come from 2 brands — AJUSA and MAHLE / CLEVITE.
Part numbers include AJUSA 01867100 and MAHLE / CLEVITE C32203.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 4.6L V8 | 603237 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD Fits: 4.6L V8 | 2411325 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
2 Coolant Reservoir parts for the 2009 Buick Lucerne come from 2 brands — DORMAN and GPD.
Part numbers include DORMAN 603237 and GPD 2411325.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 4.6L V8 | 12R04 | 🇺🇸 US 🇨🇦 CA | Professional | View on Amazon |
| CALORSTAT Fits: 3.9L V6 | RC0147 | 🇺🇸 US 🇨🇦 CA | Maximum Pressure Rating: 15.0 PS | View on Amazon |
| DORMAN Fits: 3.9L V6 | 82724 | 🇺🇸 US 🇨🇦 CA | Snap On Cap | View on Amazon |
| DORMAN Fits: 4.6L V8 | 54216 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MOTORAD Fits: 3.9L V6 | T167 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| MOTORAD Fits: 4.6L V8 | T61 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
6 Coolant Reservoir Cap parts for the 2009 Buick Lucerne come from 4 brands — DORMAN, MOTORAD, ACDELCO and 1 other brand.
Part numbers include ACDELCO 12R04, CALORSTAT RC0147 and DORMAN 82724, among others listed above.
Coolant Reservoir Retainer / Clip
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2009 Lucerne engines | 961363 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Coolant Reservoir retainers and clips.
One part is listed for the 2009 Buick Lucerne — DORMAN 961363.
Cooling Fan Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| US MOTOR WORKS Fits: 3.9L V6 | 16789 | 🇺🇸 US 🇨🇦 CA | Better Control | View on Amazon |
| US MOTOR WORKS Fits: 3.9L V6 | 16795 | 🇺🇸 US 🇨🇦 CA | Best Control | View on Amazon |
This table covers the Cooling Fan control modules.
2 Cooling Fan Control Module parts for the 2009 Buick Lucerne come from US MOTOR WORKS.
Part numbers include US MOTOR WORKS 16789 and US MOTOR WORKS 16795.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: all 2009 Lucerne engines | 31431 | 🇺🇸 US 🇨🇦 CA | Cooling System Pressure | View on Amazon |
| GATES Fits: all 2009 Lucerne engines | 31391 | 🇺🇸 US 🇨🇦 CA | Cooling System PressureRadiator Cap | View on Amazon |
| MOTORAD Fits: all 2009 Lucerne engines | 3128 | 🇺🇸 US 🇨🇦 CA | StandardRadiator Cap Adapter | View on Amazon |
| MOTORAD Fits: all 2009 Lucerne engines | 3127 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
4 Cooling System Tester Adapter parts are listed for the 2009 Buick Lucerne, from GATES and MOTORAD. All of them fit every engine offered in the 2009 Lucerne.
Part numbers include GATES 31431, GATES 31391 and MOTORAD 3128, among others listed above.
Hose Clamp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.9L V6 | 13307373 | 🇺🇸 US 🇨🇦 CA | without Handy Clip16 Nominal DIA, 12 Width | View on Amazon |
| GM GENUINE Fits: 4.6L V8 | 21999650 | 🇺🇸 US 🇨🇦 CA | RESERVOIR HOSE | View on Amazon |
This table covers the Hose clamps.
GM GENUINE supplies both parts for the 2009 Buick Lucerne.
This group includes GM GENUINE 13307373 and GM GENUINE 21999650.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO Fits: 3.9L V6 | GM3010611 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SPECTRA PREMIUM Popular Fits: 3.9L V6 | CU13267 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| TYC Popular Fits: 3.9L V6 | 13267 | 🇺🇸 US 🇨🇦 CA | PRIMARY | View on Amazon |
| AGILITY Fits: 3.9L V6 | 8013267 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP Fits: 3.9L V6 | RAD13267 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| OSC Fits: 3.9L V6 | 13267 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KOYORAD Popular Fits: 4.6L V8 | A2853 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| TYC Popular Fits: 4.6L V8 | 2853 | 🇺🇸 US 🇨🇦 CA | PRIMARY | View on Amazon |
| AGILITY Fits: 4.6L V8 | 8012853 | 🇺🇸 US 🇨🇦 CA | with Transmission Oil Coolerwithout Engine Oil Cooler | View on Amazon |
| DENSO Fits: 4.6L V8 | 2219119 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP Fits: 4.6L V8 | RAD2853 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| OSC Fits: 4.6L V8 | 2853 | 🇺🇸 US 🇨🇦 CA | EXCLUDES Heavy Duty Cooling | View on Amazon |
| SPECTRA PREMIUM Fits: 4.6L V8 | CU2853 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UAC Fits: 4.6L V8 | RA2853C | 🇺🇸 US 🇨🇦 CA | 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.
14 Radiator parts are listed for the 2009 Buick Lucerne, from SPECTRA PREMIUM, TYC, AGILITY and 6 other brands. SPECTRA PREMIUM CU13267 carries the "Popular" badge.
Economy: 1 part, from TECHPRO. A representative part number is TECHPRO GM3010611.
The Standard Replacement section: 5 options from SPECTRA PREMIUM, TYC, AGILITY and 2 other brands. SPECTRA PREMIUM CU13267 is listed in this group.
8 ungrouped parts are not assigned to a grade, with the same engine-level match.
Radiator Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 3.9L V6 | RC85 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | View on Amazon |
| ACDELCO Fits: 4.6L V8 | RC107 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | View on Amazon |
| GATES Fits: 3.9L V6 | 31532 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| GATES Fits: 4.6L V8 | 31566 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| MOTORAD Fits: 3.9L V6 | T46 | 🇺🇸 US 🇨🇦 CA | Standard | 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.
5 Radiator Cap parts are listed for the 2009 Buick Lucerne, from ACDELCO, GATES and MOTORAD.
Listed part numbers: ACDELCO RC85, ACDELCO RC107 and GATES 31532, plus the other parts above.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: all 2009 Lucerne engines | 2811602 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Popular Fits: all 2009 Lucerne engines | 76020 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| AGILITY Fits: 3.9L V6 | 6014102 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| TYC Fits: all 2009 Lucerne engines | 621440 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UAC Fits: 4.6L V8 | FA50691C | 🇺🇸 US 🇨🇦 CA | Radiator-Condenser Fan AssemblyVoltage: 13.5 V | View on Amazon |
| VDO / CONTINENTAL Fits: all 2009 Lucerne engines | FA70323 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
6 Radiator Fan Assembly parts for the 2009 Buick Lucerne come from 6 brands — GPD, FOUR SEASONS, AGILITY and 3 other brands. The "Popular" part is FOUR SEASONS 76020. 4 parts fit every engine; the other 2 are engine-specific.
The Economy section: 1 option from GPD. GPD 2811602 is listed in this group.
Standard Replacement: 5 parts, from FOUR SEASONS, AGILITY, TYC and 2 other brands. A representative part number is FOUR SEASONS 76020.
This group includes FOUR SEASONS 76020, GPD 2811602 and AGILITY 6014102 and the remaining parts above.
Radiator Fan Motor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: all 2009 Lucerne engines | 1580639 | 🇺🇸 US 🇨🇦 CA | 120W | View on Amazon |
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.
One part is listed for the 2009 Buick Lucerne — GM GENUINE 1580639.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.9L V6 | 26640X | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| ACDELCO Popular Fits: 3.9L V6 | 20526S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| DAYCO Popular Fits: 4.6L V8 | 72363 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES Popular Fits: 4.6L V8 | 23121 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| ACDELCO Fits: 4.6L V8 | 20461S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| ACDELCO Fits: 4.6L V8 | 26539X | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| CONTINENTAL Fits: 3.9L V6 | 66404 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| CONTINENTAL Fits: 4.6L V8 | 66132 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| CONTINENTAL Fits: 4.6L V8 | 66131 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| DAYCO Fits: 3.9L V6 | 73030 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| DAYCO Fits: 3.9L V6 | 73029 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| DAYCO Fits: 4.6L V8 | 72364 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES Fits: 3.9L V6 | 23496 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| GATES Fits: 3.9L V6 | 23498 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| GATES Fits: 4.6L V8 | 23139 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle.
15 Radiator Hose parts for the 2009 Buick Lucerne come from 4 brands — ACDELCO, DAYCO, GATES and 1 other brand. The "Popular" part is ACDELCO 26640X.
Radiator Upper Air Baffle Retainer / Clip
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2009 Lucerne engines | 963408 | 🇺🇸 US 🇨🇦 CA | Sight Shield | View on Amazon |
This table covers the Radiator Upper Air Baffle retainers and clips.
This group shows a single part: DORMAN 963408.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NTK Popular Fits: 4.6L V8 | EF0008 | 🇺🇸 US 🇨🇦 CA | Sensor OnlyOval Connector | View on Amazon |
| SKP Popular Fits: all 2009 Lucerne engines | SKTX89 | 🇺🇸 US 🇨🇦 CA | Fine thread | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 4.6L V8 | TX3T | 🇺🇸 US 🇨🇦 CA | T-SeriesRound Connector | View on Amazon |
| GPD Fits: 3.9L V6 | 1712489 | 🇺🇸 US 🇨🇦 CA | with 2 Terminal(s)with M12 x 1.5 Thread | View on Amazon |
| GPD Fits: 4.6L V8 | 1711697 | 🇺🇸 US 🇨🇦 CA | with Oval Connectorwith 2 Terminal(s) | View on Amazon |
| HOLSTEIN Fits: 3.9L V6 | 2CTS0318 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HOLSTEIN Fits: 4.6L V8 | 2CTS0001 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP Fits: all 2009 Lucerne engines | SK5S1018 | 🇺🇸 US 🇨🇦 CA | Coarse Thread | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.9L V6 | TX89T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| ULTRA-POWER Fits: 4.6L V8 | 5S1018 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 3.9L V6 | CTS73 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UNITED MOTOR PRODUCTS Fits: 4.6L V8 | CTS3 | 🇺🇸 US 🇨🇦 CA | Sender | View on Amazon |
| VEMO Fits: 4.6L V8 | V407203301 | 🇺🇸 US 🇨🇦 CA | Thread Size: 3/8 X 18 NPTPlug (Connector): 2 Pins | View on Amazon |
Full Service Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS Fits: 3.9L V6 | 21191118 | 🇺🇸 US 🇨🇦 CA | Full Service Kit | View on Amazon |
| WALKER PRODUCTS Fits: 4.6L V8 | 21191012 | 🇺🇸 US 🇨🇦 CA | Full Service KitConnector Shape: Circle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 2009 Lucerne engines | 2134514 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| ACDELCO Popular Fits: 4.6L V8 | 1551107 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| GM GENUINE Popular Fits: 3.9L V6 | 2134333 | 🇺🇸 US 🇨🇦 CA | White or BlackUse with Mating Connector PT1798 | View on Amazon |
| GM GENUINE Popular Fits: 4.6L V8 | 213928 | 🇺🇸 US 🇨🇦 CA | Oval Connector | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.9L V6 | TX89 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY Fits: 3.9L V6 | 1580733 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY Fits: 4.6L V8 | 1580536 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BOSCH Fits: 3.9L V6 | 0280130014 | 🇺🇸 US 🇨🇦 CA | Engine Coolant Temperature Sensor | View on Amazon |
| DELPHI Fits: 3.9L V6 | TS10076 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DELPHI Fits: 4.6L V8 | TS10075 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FACET Fits: 3.9L V6 | 73098 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FACET Fits: 4.6L V8 | 73129 | 🇺🇸 US 🇨🇦 CA | Terminals: 2 | View on Amazon |
| FOUR SEASONS Fits: 3.9L V6 | 37858 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FOUR SEASONS Fits: 4.6L V8 | 36403 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HELLA Fits: 3.9L V6 | 009107271 | 🇺🇸 US 🇨🇦 CA | 2-Pin ConnectorBolted | View on Amazon |
| HELLA Fits: 4.6L V8 | 009107591 | 🇺🇸 US 🇨🇦 CA | 2-Pin ConnectorBolted | View on Amazon |
| NTK Fits: 3.9L V6 | EF0075 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Oblong | View on Amazon |
| NTK Fits: 4.6L V8 | EF0074 | 🇺🇸 US 🇨🇦 CA | with Mating Connector | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 4.6L V8 | TX3 | 🇺🇸 US 🇨🇦 CA | Round Connector | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 4.6L V8 | TX3K | 🇺🇸 US 🇨🇦 CA | INCLUDES CONNECTOR | View on Amazon |
| WALKER PRODUCTS Fits: 3.9L V6 | 2111118 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WALKER PRODUCTS Fits: 4.6L V8 | 2111012 | 🇺🇸 US 🇨🇦 CA | Sensor OnlyCircle Connector | View on Amazon |
| WELLS Fits: 3.9L V6 | 5S1475 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 2Terminal Type: Blade | View on Amazon |
| WELLS Fits: 4.6L V8 | 5S1018 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Oval | View on Amazon |
| WELLS Fits: 4.6L V8 | 5S1474 | 🇺🇸 US 🇨🇦 CA | with Mating Connector | 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.
40 Temperature Sender / Sensor parts are listed for the 2009 Buick Lucerne, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, NTK and 15 other brands. NTK EF0008 carries the "Popular" badge. Grades run from Economy through Standard Replacement; Standard Replacement is the most populated section, led by STANDARD MOTOR PRODUCTS, WELLS, ACDELCO and 9 other brands.
Thermostat
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 3.9L V6 | 5511185 | 🇺🇸 US 🇨🇦 CA | Ultra StatIncludes seal | View on Amazon |
| MOTORAD Fits: 4.6L V8 | 5339180 | 🇺🇸 US 🇨🇦 CA | Ultra StatIncludes seal | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 3.9L V6 | 7511185 | 🇺🇸 US 🇨🇦 CA | Fail-SafeIncludes seal | View on Amazon |
| MOTORAD Fits: 4.6L V8 | 7339180 | 🇺🇸 US 🇨🇦 CA | Fail-SafeIncludes seal | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: 3.9L V6 | 34054 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| GATES Popular Fits: 4.6L V8 | 33808 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| MOTORAD Popular Fits: 3.9L V6 | 511185 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| MOTORAD Popular Fits: 4.6L V8 | 339180 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| AISIN Fits: 4.6L V8 | THRGM0010 | 🇺🇸 US 🇨🇦 CA | Includes Thermostat Seal | View on Amazon |
| CALORSTAT Fits: 3.9L V6 | TH750785J | 🇺🇸 US 🇨🇦 CA | Includes 1 Rubber Gasket | View on Amazon |
| CALORSTAT Fits: 4.6L V8 | TH751082J | 🇺🇸 US 🇨🇦 CA | Includes 1 Rubber Gasket | View on Amazon |
| FOUR SEASONS Fits: 3.9L V6 | 86133 | 🇺🇸 US 🇨🇦 CA | Includes Housing | View on Amazon |
| GM GENUINE Fits: 4.6L V8 | 131128 | 🇺🇸 US 🇨🇦 CA | OE Temperature | View on Amazon |
| GM GENUINE Fits: 4.6L V8 | 131164 | 🇺🇸 US 🇨🇦 CA | Includes Cover, Thermostat & Housing, Gaskets and Bolts | View on Amazon |
| MOTORAD Fits: 3.9L V6 | 511195 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| MOTORAD Fits: 3.9L V6 | 6133KT | 🇺🇸 US 🇨🇦 CA | Includes Inlet, Thermostat and SealKit | View on Amazon |
| MOTORAD Fits: 4.6L V8 | 5284KT | 🇺🇸 US 🇨🇦 CA | Includes Housing, Thermostat and SealKit | 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.
17 Thermostat parts for the 2009 Buick Lucerne come from 6 brands — MOTORAD, GATES, CALORSTAT and 3 other brands. The "Popular" part is GATES 34054.
In the Heavy Duty grade, MOTORAD supplies 2 parts: rated for severe service. A representative part number is MOTORAD 5511185.
Premium: 2 parts, from MOTORAD. A representative part number is MOTORAD 7511185.
Standard Replacement: 13 parts, from MOTORAD, GATES, CALORSTAT and 3 other brands. A representative part number is GATES 34054.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 3.9L V6 | 35614 | 🇺🇸 US 🇨🇦 CA | Water Outlet Seal | View on Amazon |
| FEL-PRO Popular Fits: 3.9L V6 | 35815 | 🇺🇸 US 🇨🇦 CA | LeftCrossover Pipe Seal | View on Amazon |
| FEL-PRO Popular Fits: 4.6L V8 | 35725 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing Seal | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 3.9L V6 | C31301 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 4.6L V8 | C31200 | 🇺🇸 US 🇨🇦 CA | Engine Coolant Outlet O-RingMolded Rubber | View on Amazon |
| APEX Fits: 3.9L V6 | AWO2041 | 🇺🇸 US 🇨🇦 CA | Water Outlet Seal | View on Amazon |
| APEX Fits: 3.9L V6 | AWO2241 | 🇺🇸 US 🇨🇦 CA | LeftCrossover Pipe Seal | View on Amazon |
| APEX Fits: 3.9L V6 | AWO2351 | 🇺🇸 US 🇨🇦 CA | RightCrossover Pipe Seal | View on Amazon |
| APEX Fits: 4.6L V8 | AWO2214 | 🇺🇸 US 🇨🇦 CA | Thermostat O-RingThermostat Seal | View on Amazon |
| ELRING Fits: 4.6L V8 | 653630 | 🇺🇸 US 🇨🇦 CA | Body code: HF69Thermostat Seal | View on Amazon |
| FEL-PRO Fits: 3.9L V6 | 35913 | 🇺🇸 US 🇨🇦 CA | RightCrossover Pipe Seal | View on Amazon |
| GM GENUINE Fits: 3.9L V6 | 12623853 | 🇺🇸 US 🇨🇦 CA | RightCrossover Pipe Seal | View on Amazon |
| GM GENUINE Fits: 3.9L V6 | 2512062 | 🇺🇸 US 🇨🇦 CA | LeftCrossover Pipe Seal | View on Amazon |
| GM GENUINE Fits: 4.6L V8 | 12574478 | 🇺🇸 US 🇨🇦 CA | V-Shaped RingThermostat Seal | View on Amazon |
| VICTOR REINZ Fits: 3.9L V6 | 711355100 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| VICTOR REINZ Fits: 3.9L V6 | 711358300 | 🇺🇸 US 🇨🇦 CA | LeftBypass Housing To Cylinder Head | View on Amazon |
| VICTOR REINZ Fits: 3.9L V6 | 711422200 | 🇺🇸 US 🇨🇦 CA | RightWater Outlet Seal | View on Amazon |
| VICTOR REINZ Fits: 4.6L V8 | 711402900 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing 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.
18 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2009 Buick Lucerne, from FEL-PRO, APEX, VICTOR REINZ and 3 other brands. FEL-PRO 35614 carries the "Popular" badge.
Thermostat Housing / Water Outlet
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 4.6L V8 | 9022010 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing | View on Amazon |
| FAMOUS BRAND Fits: 4.6L V8 | 85284 | 🇺🇸 US 🇨🇦 CA | Water Outlet HousingOutlet | View on Amazon |
| GPD Fits: 4.6L V8 | 8241497 | 🇺🇸 US 🇨🇦 CA | Water Outlet | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 4.6L V8 | 1580767 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing | View on Amazon |
| FOUR SEASONS Fits: 4.6L V8 | 85284 | 🇺🇸 US 🇨🇦 CA | Water Outlet | View on Amazon |
| GATES Fits: 4.6L V8 | CO34913 | 🇺🇸 US 🇨🇦 CA | Thermostat CoverWater Outlet | View on Amazon |
| MOTORAD Fits: 4.6L V8 | CH5284 | 🇺🇸 US 🇨🇦 CA | Water Outlet | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 3.9L V6 | CH6133 | 🇺🇸 US 🇨🇦 CA | Includes Water Inlet | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
8 Thermostat Housing / Water Outlet parts for the 2009 Buick Lucerne come from 7 brands — MOTORAD, DORMAN, FAMOUS BRAND and 4 other brands. The "Popular" part is DORMAN 9022010.
The Economy section: 3 options from DORMAN, FAMOUS BRAND and GPD. DORMAN 9022010 is listed in this group.
Standard Replacement: 4 parts, from GM GENUINE, FOUR SEASONS, GATES and 1 other brand. A representative part number is GM GENUINE 1580767.
1 further part sits outside the graded sections, with the same engine-level match.
This group includes DORMAN 9022010, FAMOUS BRAND 85284 and GPD 8241497 and the remaining parts above.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 3.9L V6 | SK1309660 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| US MOTOR WORKS Popular Fits: 3.9L V6 | US6020 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| US MOTOR WORKS Popular Fits: 4.6L V8 | US8956 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP Fits: 3.9L V6 | US6020 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP Fits: 4.6L V8 | US8956 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP Fits: 4.6L V8 | SK1309760 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WJB / INMOTION PARTS Fits: 3.9L V6 | WU6020 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 4.6L V8 | 252915 | 🇺🇸 US 🇨🇦 CA | GoldDoes Not Include Mount Bolts | View on Amazon |
| ACDELCO Fits: 3.9L V6 | 252897 | 🇺🇸 US 🇨🇦 CA | GoldDoes Not Include Mount Bolts | View on Amazon |
| AISIN Fits: 3.9L V6 | WPGM604V | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| AISIN Fits: 4.6L V8 | WPGM706V | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DAYCO Fits: 3.9L V6 | DP981 | 🇺🇸 US 🇨🇦 CA | Serpentine Belt Driven | View on Amazon |
| DAYCO Fits: 4.6L V8 | DP1310 | 🇺🇸 US 🇨🇦 CA | Serpentine Belt Driven | View on Amazon |
| GATES Fits: 3.9L V6 | 42586 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GATES Fits: 4.6L V8 | 42583 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GM GENUINE Fits: 4.6L V8 | 251698 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GMB Fits: 3.9L V6 | 1309660 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GMB Fits: 3.9L V6 | 1309660M | 🇺🇸 US 🇨🇦 CA | Metal Gasket | View on Amazon |
| GMB Fits: 4.6L V8 | 1309760 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off.
19 Water Pump parts for the 2009 Buick Lucerne come from 10 brands — GMB, SKP, US MOTOR WORKS and 7 other brands. The "Popular" part is SKP SK1309660.
The Economy section: 7 options from SKP, US MOTOR WORKS, FVP and 1 other brand. SKP SK1309660 is listed in this group.
Standard Replacement: 12 parts, from GMB, ACDELCO, AISIN and 3 other brands. A representative part number is ACDELCO 252915.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 3.9L V6 | 35814 | 🇺🇸 US 🇨🇦 CA | To Block | View on Amazon |
| FEL-PRO Popular Fits: 4.6L V8 | 35794 | 🇺🇸 US 🇨🇦 CA | To BlockCover | View on Amazon |
| FEL-PRO Popular Fits: 4.6L V8 | 35656 | 🇺🇸 US 🇨🇦 CA | To BlockLower | View on Amazon |
| FEL-PRO Popular Fits: 4.6L V8 | ES72758 | 🇺🇸 US 🇨🇦 CA | Gasket KitWater Pump Mounting Gaskets, Water Pump Cover Gasket, Throttle Body Gaskets included | View on Amazon |
| GM GENUINE Popular Fits: 3.9L V6 | 2512042 | 🇺🇸 US 🇨🇦 CA | TRIANGULAR SHAPED LOWER WATER PUMP HOUSING Gasket | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 4.6L V8 | GS33437 | 🇺🇸 US 🇨🇦 CA | Contains All Water Pump Housing and Throttle Body GasketsMolded Rubber | View on Amazon |
| AJUSA Fits: 3.9L V6 | 01867800 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| APEX Fits: 3.9L V6 | AWP3198 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| APEX Fits: 4.6L V8 | AWP3133 | 🇺🇸 US 🇨🇦 CA | Body cover | View on Amazon |
| APEX Fits: 4.6L V8 | AWP3013 | 🇺🇸 US 🇨🇦 CA | LowerTo block | View on Amazon |
| APEX Fits: 4.6L V8 | AWP3017 | 🇺🇸 US 🇨🇦 CA | UpperTo block | View on Amazon |
| FEL-PRO Fits: 4.6L V8 | 35659 | 🇺🇸 US 🇨🇦 CA | To BlockUpper | View on Amazon |
| GM GENUINE Fits: 4.6L V8 | 2512045 | 🇺🇸 US 🇨🇦 CA | Cover | View on Amazon |
| GM GENUINE Fits: 4.6L V8 | 2512027 | 🇺🇸 US 🇨🇦 CA | RECTANGULAR SHAPED UPPER WATER PUMP HOUSING Gasket | View on Amazon |
| GM GENUINE Fits: 4.6L V8 | 2512023 | 🇺🇸 US 🇨🇦 CA | TRIANGULAR SHAPED LOWER WATER PUMP HOUSING Gasket | View on Amazon |
| MAHLE / CLEVITE Fits: 3.9L V6 | K32164 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| MAHLE / CLEVITE Fits: 4.6L V8 | K33088 | 🇺🇸 US 🇨🇦 CA | Upper | View on Amazon |
| MAHLE / CLEVITE Fits: 4.6L V8 | K32979 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| VICTOR REINZ Fits: 3.9L V6 | 711469700 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VICTOR REINZ Fits: 4.6L V8 | 711388200 | 🇺🇸 US 🇨🇦 CA | Improved Design | View on Amazon |
| VICTOR REINZ Fits: 4.6L V8 | 711381900 | 🇺🇸 US 🇨🇦 CA | Improved Design | View on Amazon |
| VICTOR REINZ Fits: 4.6L V8 | 711382000 | 🇺🇸 US 🇨🇦 CA | Fits Housing To BlockRectangular Ports | View on Amazon |
| VICTOR REINZ Fits: 4.6L V8 | 711382800 | 🇺🇸 US 🇨🇦 CA | Fits LowerTriangular Gasketor Housing To Block | View on Amazon |
| VICTOR REINZ Fits: 4.6L V8 | 181000201 | 🇺🇸 US 🇨🇦 CA | Mounting Set | 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.
24 Water Pump Gasket parts are listed for the 2009 Buick Lucerne, from VICTOR REINZ, FEL-PRO, GM GENUINE and 3 other brands. FEL-PRO 35814 carries the "Popular" badge.
Water Pump Pulley
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 4.6L V8 | 300940 | 🇺🇸 US 🇨🇦 CA | PlasticO.D. | View on Amazon |
| GM GENUINE Fits: 3.9L V6 | 12577763 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
2 Water Pump Pulley parts are listed for the 2009 Buick Lucerne, from DORMAN and GM GENUINE.
Part numbers include DORMAN 300940 and GM GENUINE 12577763.
Water Pump Seal / O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APEX Fits: 4.6L V8 | AWP3012 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FEL-PRO Fits: 4.6L V8 | 35499 | 🇺🇸 US 🇨🇦 CA | O-Ring3.734 (in) Inside Diameter x 4.012 (in) Outside Diameter | View on Amazon |
This table covers the Water Pump Seal O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.
2 Water Pump Seal / O-Ring parts for the 2009 Buick Lucerne come from 2 brands — APEX and FEL-PRO.
Part numbers include APEX AWP3012 and FEL-PRO 35499.
Buying Cooling System Parts for a 2009 Buick Lucerne
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. Some cooling system parts fit every engine; others are 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: Temperature Sender / Sensor and Water Pump Gasket .
Frequently Asked Questions
How many cooling system parts fit the 2009 Buick Lucerne?
Our catalog currently lists 215 cooling system parts for the 2009 Buick Lucerne across 24 subcategories and 48 brands, covering both the 3.9L V6 and the 4.6L V8. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 2009 Buick Lucerne engines?
Some do. 30 parts fit every engine; the other 185 are engine-specific. Each row (and the filter at the top) shows which. 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 2009 Buick Lucerne?
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 2009 Buick Lucerne 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 2009 Buick Lucerne?
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 2009 Buick Lucerne
Cooling System Parts for Other Buick Lucerne Years
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