68 Cooling system parts are listed for the 2018 Buick Cascada, in 18 part types, covering the 1.6L L4 Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2018 Buick Cascada, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. Most of the listed parts are Coolant / Antifreeze (16 parts), Radiator (10 parts) and Coolant Reservoir (6 parts). The other 15 part types cover the remaining 36 parts.
The 2018 Buick Cascada came with a single engine, the 1.6L L4 Turbocharged, and every part is verified against it.
28 brands supply cooling system parts for the 2018 Buick Cascada, led by GM GENUINE (13 parts), PRESTONE (6 parts) and ACDELCO (4 parts), plus 25 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 2018 Buick Cascada. 11 parts have it, including FVP MV5050GAL (Coolant / Antifreeze) and AUTOTECNICA CE0713621 (Coolant Reservoir). 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 | AF3055 | 🇺🇸 US | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular | MV5050GAL | 🇺🇸 US | Extended LifeAll Makes / All Models | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| PRESTONE | AF3100 | 🇺🇸 US | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| VALVOLINE | 719009 | 🇺🇸 US | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇺🇸 US | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇺🇸 US | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇺🇸 US | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | 105027 | 🇺🇸 US | DEX-Cool Extended LifeDexcool (with DE-Ionized Water) (with Bitterant) 1 Gallon | View on Amazon |
| VALVOLINE Popular | ZXEL1 | 🇺🇸 US | Dex-Cool Orange1 Gallon | View on Amazon |
| AISIN | ACD005 | 🇺🇸 US | OrangeOAT | View on Amazon |
| FVP | DEX5050GAL | 🇺🇸 US | Extended Life Blend1 Gallon | View on Amazon |
| PRESTONE | AF3400 | 🇺🇸 US | Prime OrangeOrange Compatible | View on Amazon |
| PRESTONE | AF850 | 🇺🇸 US | DEX-Cool Extended Life1 Gallon | View on Amazon |
| VALVOLINE | 888374 | 🇺🇸 US | 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 2018 Buick Cascada, from PRESTONE, PEAK, VALVOLINE and 3 other brands. FVP MV5050GAL carries the "Popular" badge.
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 Air Bleeder
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13378477 | 🇺🇸 US 🇨🇦 CA | Air Conditioning Front Automatic/Auxiliary Control(CJ2) | View on Amazon |
This table covers the bleeders used to purge air from the coolant circuit.
This group shows a single part: GM GENUINE 13378477.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 55509122 | 🇺🇸 US 🇨🇦 CA | Auxiliary Water Pump (Outlet) To Pipe | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
One part is listed for the 2018 Buick Cascada — GM GENUINE 55509122.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Popular | CE0713621 | 🇺🇸 US | Includes Cap | View on Amazon |
| DORMAN Popular | 603383 | 🇺🇸 US | View on Amazon | |
| GPD | 2411089 | 🇺🇸 US | View on Amazon | |
| NISSENS | 996224 | 🇺🇸 US | View on Amazon | |
| SKP | SK603383 | 🇺🇸 US | View on Amazon | |
| VAICO | V401643 | 🇺🇸 US | Does Not Includecoolant level switch connection | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
6 Coolant Reservoir parts for the 2018 Buick Cascada come from 6 brands — AUTOTECNICA, DORMAN, GPD and 3 other brands. The "Popular" part is AUTOTECNICA CE0713621.
Listed part numbers: AUTOTECNICA CE0713621, DORMAN 603383 and GPD 2411089, plus the other parts above.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 54218 | 🇺🇸 US | View on Amazon | |
| SKP Popular | SK54218 | 🇺🇸 US | View on Amazon | |
| AUTOTECNICA | GM0714619 | 🇺🇸 US | Diameter: 45mmPressure Rating: 20psi | View on Amazon |
| CALORSTAT | RC0144 | 🇺🇸 US | Maximum Pressure Rating: 20.0 PS | View on Amazon |
| GATES | 31569 | 🇺🇸 US | OE Type | View on Amazon |
| MOTORAD | T62 | 🇺🇸 US | 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 2018 Buick Cascada come from 6 brands — DORMAN, SKP, AUTOTECNICA and 3 other brands. The "Popular" part is DORMAN 54218.
Listed part numbers: DORMAN 54218, SKP SK54218 and AUTOTECNICA GM0714619, plus the other parts above.
Coolant Reservoir Retainer / Clip
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13284504 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Coolant Reservoir retainers and clips.
One part is listed for the 2018 Buick Cascada — GM GENUINE 13284504.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 31391 | 🇺🇸 US | Cooling System PressureRadiator Cap | View on Amazon |
| MOTORAD | 3128 | 🇺🇸 US | StandardRadiator Cap Adapter | View on Amazon |
| MOTORAD | 3127 | 🇺🇸 US | Standard | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
3 Cooling System Tester Adapter parts are listed for the 2018 Buick Cascada, from MOTORAD and GATES.
Part numbers include GATES 31391, MOTORAD 3128 and MOTORAD 3127.
Hose Clamp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13162312 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE | 90530642 | 🇺🇸 US 🇨🇦 CA | Clamp-Sprindband, 14X12, Double BandAir Bleed Hose | View on Amazon |
This table covers the Hose clamps.
GM GENUINE supplies both parts for the 2018 Buick Cascada.
Listed part numbers: GM GENUINE 13162312 and GM GENUINE 90530642.
Intercooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13393988 | 🇺🇸 US 🇨🇦 CA | Air Conditioning Front Automatic/Auxiliary Control(CJ2), Front A/CElectronic Controls (C67) | View on Amazon |
| GPD | 2711546 | 🇺🇸 US | View on Amazon | |
| SPECTRA PREMIUM | 44011218 | 🇺🇸 US | View on Amazon |
This table covers the intercoolers that cool turbo or supercharger charge air.
3 Intercooler parts are listed for the 2018 Buick Cascada, from GM GENUINE, GPD and SPECTRA PREMIUM.
Part numbers include GM GENUINE 13393988, GPD 2711546 and SPECTRA PREMIUM 44011218.
Intercooler Air Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13470307 | 🇺🇸 US 🇨🇦 CA | Air Inlet | View on Amazon |
| GM GENUINE | 39194783 | 🇺🇸 US 🇨🇦 CA | End 2 Inside Diameter (mm): 75.41 mm | View on Amazon |
This table covers the Intercooler Air Hose pipes.
GM GENUINE supplies both parts for the 2018 Buick Cascada.
Listed part numbers: GM GENUINE 13470307 and GM GENUINE 39194783.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FAMOUS BRAND | 813509 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CSF Popular | 3778 | 🇺🇸 US | with Quick-Connect Outlet Pipe & Quick-Connect Oil Cooler Fittings.7% Thicker Core 30mm vs OEM 28mm | View on Amazon |
| TYC Popular | 13509 | 🇺🇸 US | PRIMARY | View on Amazon |
| AGILITY | 8013509 | 🇺🇸 US | with Transmission Oil Cooler On Passenger Side Tank | View on Amazon |
| FVP | RAD13509 | 🇺🇸 US | View on Amazon | |
| GM GENUINE | 21844 | 🇺🇸 US 🇨🇦 CA | Fits Air Conditioning Front Automatic/Auxiliary Control(CJ2) | View on Amazon |
| KOYORAD | A13509 | 🇺🇸 US | Transmission Oil Cooler Diameter: 1.0625 In | View on Amazon |
| OSC | 13509 | 🇺🇸 US | View on Amazon | |
| SPECTRA PREMIUM | CU13509 | 🇺🇸 US | View on Amazon | |
| UAC | RA13509C | 🇺🇸 US | 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.
10 Radiator parts are listed for the 2018 Buick Cascada, from FAMOUS BRAND, CSF, TYC and 7 other brands. CSF 3778 carries the "Popular" badge.
Economy: 1 part, from FAMOUS BRAND. A representative part number is FAMOUS BRAND 813509.
The Standard Replacement section: 9 options from CSF, TYC, AGILITY and 6 other brands. CSF 3778 is listed in this group.
Radiator Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | RC124 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | View on Amazon |
| PROFESSIONAL PARTS SWEDEN | 21342353 | 🇺🇸 US | View on Amazon |
This table covers the caps that hold system pressure at the radiator or reservoir neck. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
2 Radiator Cap parts are listed for the 2018 Buick Cascada, from ACDELCO and PROFESSIONAL PARTS SWEDEN.
Listed part numbers: ACDELCO RC124 and PROFESSIONAL PARTS SWEDEN 21342353.
Radiator Drain Petcock
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 22790134 | 🇺🇸 US 🇨🇦 CA | Air Conditioning Front Automatic/Auxiliary Control(CJ2),Merchandised Trans Auto Equipment | View on Amazon |
This table covers the petcocks used to drain the radiator.
This group shows a single part: GM GENUINE 22790134.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 2811984 | 🇺🇸 US | 2nd Designwith Oil Cooler | View on Amazon |
| TECHPRO | GM3115305 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular | 1581810 | 🇺🇸 US 🇨🇦 CA | INCLUDES RESISTORAir Conditioning Front Automatic/Auxiliary Control(CJ2),Automatic Transmission PROVISIONS(MM1) | View on Amazon |
| AGILITY | 6010350 | 🇺🇸 US | Single Fan Configuration | View on Amazon |
| MAHLE / CLEVITE | CFF546000P | 🇺🇸 US | Fan Blades: 7Poles: 4 | View on Amazon |
| UAC | FA50425C | 🇺🇸 US | 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 2018 Buick Cascada come from 6 brands — GPD, TECHPRO, GM GENUINE and 3 other brands. The "Popular" part is GM GENUINE 1581810.
The Economy section: 2 options from GPD and TECHPRO. GPD 2811984 is listed in this group.
Standard Replacement: 4 parts, from GM GENUINE, AGILITY, MAHLE / CLEVITE and 1 other brand. A representative part number is GM GENUINE 1581810.
This group includes GM GENUINE 1581810, GPD 2811984 and TECHPRO GM3115305 and the remaining parts above.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 13383058 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | View on Amazon |
| ACDELCO | 13347810 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | 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.
2 Radiator Hose parts for the 2018 Buick Cascada come from ACDELCO.
This group includes ACDELCO 13383058 and ACDELCO 13347810.
Radiator Mount Bracket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA | GM0716057 | 🇺🇸 US | Lower | View on Amazon |
This table covers the brackets that mount the Radiator Mount. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners.
This group shows a single part: AUTOTECNICA GM0716057.
Radiator Mount Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 926275 | 🇺🇸 US | Upper | View on Amazon |
| SKP | SK926275 | 🇺🇸 US | Upper | View on Amazon |
| ULTRA-POWER | 926275 | 🇺🇸 US 🇨🇦 CA | UPPERPK QTY: 2 | View on Amazon |
This table covers the Radiator Mount bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
3 Radiator Mount Bushing parts for the 2018 Buick Cascada come from 3 brands — DORMAN, SKP and ULTRA-POWER.
Part numbers include DORMAN 926275 and SKP SK926275, among others listed above.
Radiator Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13394455 | 🇺🇸 US 🇨🇦 CA | LowerAir Conditioning Front Automatic/Auxiliary Control(CJ2) | View on Amazon |
| GM GENUINE | 13394456 | 🇺🇸 US 🇨🇦 CA | Air Conditioning Front Automatic/Auxiliary Control(CJ2) | View on Amazon |
This table covers the seals at the Radiator. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
2 Radiator Seal parts for the 2018 Buick Cascada come from GM GENUINE.
This group includes GM GENUINE 13394455 and GM GENUINE 13394456.
Buying Cooling System Parts for a 2018 Buick Cascada
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Confirm you have the 1.6L L4 Turbocharged 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: Coolant / Antifreeze and Radiator .
Frequently Asked Questions
How many cooling system parts fit the 2018 Buick Cascada?
Our catalog currently lists 68 cooling system parts for the 2018 Buick Cascada across 18 subcategories and 28 brands, covering the 1.6L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2018 Buick Cascada?
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 2018 Buick Cascada 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 2018 Buick Cascada?
Every part on this page is matched to the 1.6L L4 Turbocharged 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 2018 Buick Cascada
Cooling System Parts for Other Buick Cascada Years
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