2018 Buick Cascada Cooling System Parts

Engine:
1.6L L4 Turbocharged

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.

Coolant / Antifreeze

Compatible With All Colors

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

Economy

Brand Part Number Markets Notes Buy
FVP Popular MV5050GAL
🇺🇸 US
Extended LifeAll Makes / All Models
Fitment notes — FVP MV5050GAL
Extended LifeAll Makes / All Models1 Gallon
View on
Amazon
PEAK BQA1GAL
🇺🇸 US
Blue Mountain Long LifeAll Vehicle
Fitment notes — PEAK BQA1GAL
Blue Mountain Long LifeAll Vehicle1 Gallon
View on
Amazon
PRESTONE AF3100
🇺🇸 US
Prime Yellow - All VehiclesExtended Life
Fitment notes — PRESTONE AF3100
Prime Yellow - All VehiclesExtended Life1 Gallon
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
Fitment notes — PRESTONE AF2100
All Vehicles10yr/300k mi1 GallonExtended Life
View on
Amazon
PEAK PKP1GAL
🇺🇸 US
All Vehicles Antifreeze1 Gallon
Fitment notes — PEAK PKP1GAL
All Vehicles Antifreeze1 GallonPREMIUM1 GALLON10X MORE SCALE FIGHTING INHIBITORS10 YEAR/300K MILES
View on
Amazon
PEAK PXA1GAL
🇺🇸 US
Global Lifetime1 Gallon
View on
Amazon
PRESTONE AFMAX
🇺🇸 US
Max Universal1 Gallon
Fitment notes — PRESTONE AFMAX
Max Universal1 Gallon15 Year/350k Miles
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
Fitment notes — ACDELCO 105027
DEX-Cool Extended LifeDexcool (with DE-Ionized Water) (with Bitterant) 1 GallonPremix1 Gallon GM Original EquipmentOrange
View on
Amazon
VALVOLINE Popular ZXEL1
🇺🇸 US
Dex-Cool Orange1 Gallon
Fitment notes — VALVOLINE ZXEL1
Dex-Cool Orange1 GallonOAT
View on
Amazon
AISIN ACD005
🇺🇸 US
OrangeOAT
Fitment notes — AISIN ACD005
OrangeOAT
(Type: Prediluted)
View on
Amazon
FVP DEX5050GAL
🇺🇸 US
Extended Life Blend1 Gallon
Fitment notes — FVP DEX5050GAL
Extended Life Blend1 GallonOrangeOAT
View on
Amazon
PRESTONE AF3400
🇺🇸 US
Prime OrangeOrange Compatible
Fitment notes — PRESTONE AF3400
Prime OrangeOrange CompatibleExtended Life1 Gallon ConcentrateOAT
View on
Amazon
PRESTONE AF850
🇺🇸 US
DEX-Cool Extended Life1 Gallon
Fitment notes — PRESTONE AF850
DEX-Cool Extended Life1 GallonOrangeOAT
View on
Amazon
VALVOLINE 888374
🇺🇸 US
American Vehicle Orange1 Gallon
Fitment notes — VALVOLINE 888374
American Vehicle Orange1 Gallon
(Type: Prediluted)
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.

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.

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.

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.

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
Fitment notes — GATES 31569
OE Type
20 psi Pressure Rating
View on
Amazon
MOTORAD T62
🇺🇸 US
Standard
Fitment notes — MOTORAD T62
Standard
Relief Pressure 20 lbs
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.

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.

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
Fitment notes — MOTORAD 3128
StandardRadiator Cap Adapter
Cooling System PressureRadiator Cap Adapter
View on
Amazon
MOTORAD 3127
🇺🇸 US
Standard
Fitment notes — MOTORAD 3127
Standard
Cooling System Pressure
View on
Amazon

This table covers the adapters used to pressure-test this cooling system.

Hose Clamp

Brand Part Number Markets Notes Buy
GM GENUINE 13162312
🇺🇸 US 🇨🇦 CA
Black
Fitment notes — GM GENUINE 13162312
Black
Upper42MM IDRadiator Hose
View on
Amazon
GM GENUINE 90530642
🇺🇸 US 🇨🇦 CA
Clamp-Sprindband, 14X12, Double BandAir Bleed Hose
View on
Amazon

This table covers the Hose clamps.

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.

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
Fitment notes — GM GENUINE 39194783
End 2 Inside Diameter (mm): 75.41 mm
Air Outlet
View on
Amazon

This table covers the Intercooler Air Hose pipes.

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)
Fitment notes — GM GENUINE 21844
Fits:
Air Conditioning Front Automatic/Auxiliary Control(CJ2)
or:
Front A/CElectronic Controls (C67)
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.

Radiator Cap

Brand Part Number Markets Notes Buy
ACDELCO RC124
🇺🇸 US 🇨🇦 CA
GM Original Equipment
Fitment notes — ACDELCO RC124
GM Original Equipment
SIDE CAP
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.

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.

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
Fitment notes — MAHLE / CLEVITE CFF546000P
Fan Blades: 7Poles: 4DIAMETER395Voltage 12
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.

Radiator Hose

Brand Part Number Markets Notes Buy
ACDELCO 13383058
🇺🇸 US 🇨🇦 CA
GM Original Equipment
Fitment notes — ACDELCO 13383058
GM Original Equipment
Lower
View on
Amazon
ACDELCO 13347810
🇺🇸 US 🇨🇦 CA
GM Original Equipment
Fitment notes — ACDELCO 13347810
GM Original Equipment
Upper
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.

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.

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.

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.

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

Switch vehicle or jump to a subcategory

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.