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Subaru Radiators

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Radiators help keep engines cool by circulating coolant through the engine and releasing heat. Over time, radiators face wear and tear that can reduce their ability to cool effectively. SubaruFactoryPartsOnline.com stresses the importance of using genuine Subaru radiators because they offer reliable fit and durability compared to cheaper aftermarket options. Models like the Subaru Crosstrek and Subaru WRX depend on quality cooling systems to perform well.

Why radiators break down

Radiators can develop leaks, corrosion, or clogging as they age. Coolant can leave deposits inside, blocking flow and causing overheating. Cheaper aftermarket radiators may use lower-grade materials that corrode faster or don’t fit perfectly, leading to leaks. Genuine Subaru radiators resist corrosion better and maintain proper cooling for longer.

When to replace the radiator

Signs of a failing radiator include engine overheating, coolant leaks, or unusual temperature gauge readings. SubaruFactoryPartsOnline.com recommends checking the radiator during routine maintenance and replacing it when leaks or blockages occur. Staying on schedule prevents engine damage and keeps the vehicle running smoothly.

Supporting parts to check along with the radiator

The water pump works closely with the radiator to circulate coolant. Using genuine Subaru parts for both helps avoid premature failure and ensures efficient engine cooling.

Choosing genuine Subaru radiators helps maintain consistent engine temperature and prevents costly repairs. Cheaper alternatives often fail sooner and may cause additional engine problems. SubaruFactoryPartsOnline.com offers parts built specifically for models like the Crosstrek and WRX. Regular radiator maintenance helps extend your vehicle’s lifespan and keeps performance steady.

Fan Shroud

Part Number: 45122SA000
Subaru Subaru
Other Names: Shroud Radiator
Description: Forester. 2.5L turbo.
Fits:
  • Subaru:
    • Forester
MSRP $109.13
$75.30

Cap

Part Number: 745153020
Subaru Subaru
Other Names: Radiator Cap
Fits:
  • Subaru:
    • Justy
MSRP $1.68
$1.42

Fan Shroud

Part Number: 45122VA000
Subaru Subaru
Applications: 2.5L.
Other Names: Shroud Radiator
Description: 2.5L. WRX STI.
Fits:
  • Subaru:
    • WRX STI
MSRP $109.58
$75.61

Fan Shroud

Part Number: 45122SG000
Subaru Subaru
Applications: 2.0L. 2.5L.
Other Names: Shroud-Radiator
Description: 2.0L. 2.5L. WRX STI.
Fits:
  • Subaru:
    • Forester,
    • WRX,
    • WRX STI
MSRP $87.42
$60.32

Drain Plug O-Ring

Part Number: 745128040
Subaru Subaru
Notes: Included with radiator assembly.
Other Names: Radiator Seal, Radiator Assembly Seal, Radiator Assembly Packing, Radiator Drain Plug Gasket, Radiator Packing
Replaces: 45128GA040
Description: 2.2 & 2.5L, 1999-01. 2.0L. 2.5L dohc. 2.5L turbo. Radiator assy,packing.
Fits:
  • Subaru:
    • Baja,
    • Forester,
    • Impreza,
    • Legacy
MSRP $3.78
$3.16

Lower Hose

Part Number: 45161FL040
Subaru Subaru
Applications: 2.0L. 2.5L.
Other Names: Radiator Coolant Hose, Hose Radiator Outlet
Description: Without hybrid. Crosstrek.
Fits:
  • Subaru:
    • Crosstrek
MSRP $44.38
$30.89

Drain Plug

Part Number: 45191FL00A
Subaru Subaru
Notes: Part has related component that cannot be reused/reinstalled. o-ring. included with radiator assembly.
Other Names: Radiator Drain Plug, Air Plug Radiator
Description: 2.5L.
Fits:
  • Subaru:
    • Crosstrek
MSRP $13.28
$10.60

Upper Hose

Part Number: 45161AG00B
Subaru Subaru
Other Names: Radiator Coolant Hose, Radiator Hose Inlet
Replaces: 45161AG00A
Description: 2.5L turbo.
Fits:
  • Subaru:
    • Legacy,
    • Outback
MSRP $36.03
$25.08

Upper Hose

Part Number: 45161FL000
Subaru Subaru
Applications: 2.0L. 2.5L.
Other Names: Radiator Coolant Hose, Hose Radiator Inlet
Description: Crosstrek. Impreza. 2.0L.
Fits:
  • Subaru:
    • Crosstrek,
    • Impreza
MSRP $25.95
$18.84

Lower Hose

Part Number: 45161FL01A
Subaru Subaru
Other Names: Radiator Coolant Hose, Hose-Radiator Outlet
Description: Impreza.
Fits:
  • Subaru:
    • Impreza
MSRP $31.75
$23.05

Upper Hose

Part Number: 45161AE05A
Subaru Subaru
Other Names: Radiator Coolant Hose, Radiator Hose Inlet A
Description: Outback. 3.0l.
Fits:
  • Subaru:
    • Outback
MSRP $25.95
$18.84

Upper Hose

Part Number: 45161FL00A
Subaru Subaru
Applications: 2.5L.
Other Names: Radiator Coolant Hose, Hose-Radiator Inlet
Description: Impreza. Crosstrek.
Fits:
  • Subaru:
    • Crosstrek,
    • Impreza
MSRP $24.50
$17.79

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