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Subaru Thermostats

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It's important to regulate the temperature of your car's engine so that you can keep it running efficiently. Your Subaru has an entire cooling system in place that helps to maintain the temperature of your engine and prevent it from getting too hot or cold. There are many parts that make up this cooling system, including the thermostat. The thermostat is a part of the system that works to help increase or decrease the temperature of your engine as needed. It accomplishes this by opening or shutting to regulate the flow of coolant that gets through to your engine. This helps to ensure that your engine remains at just the right temperature for operation. The thermostat usually remains closed when you're first starting the engine to allow it to warm up, and then will open to allow coolant through so your engine doesn't get too hot. If you need a replacement thermostat, be sure to get one from here on our site that will fit your Subaru model perfectly. Shop today.

Thermostat
Part Number: 21210AA221
Positions: Front
Other Names: Thermostat And Gasket Ay More Names
Replaces: 21210AA220
Description: 2.0L. WRX. Front. Forester. With turbo. Acsent. More Info
Notes: Includes Gasket. More Notes
Fits:
  • Subaru:
    • Ascent,
    • Forester,
    • WRX
MSRP $30.40
$22.07
MSRP $30.40
$22.07
Thermostat
Part Number: 21210AA290
Positions: Upper
Other Names: Thermostat And Gasket Ay More Names
Description: 2.5L, thermostat. Forester. 2.5L, upper. More Info
Fits:
  • Subaru:
    • Crosstrek,
    • Forester,
    • Legacy,
    • Outback
MSRP $32.50
$23.60
MSRP $32.50
$23.60
Thermostat
Part Number: 21200KA050
Other Names: PT500289 Thermostat More Names
Replaces: 417535500
Description: All models. Justy. Without fuel injection. More Info
Fits:
  • Subaru:
    • Justy
MSRP $22.28
$16.18
MSRP $22.28
$16.18
Thermostat
Part Number: 21210AA120
Other Names: Thermostat And Gasket Ay More Names
Description: Legacy. Without turbo. Outback. More Info
Fits:
  • Subaru:
    • Legacy,
    • Outback
MSRP $30.40
$22.07
MSRP $30.40
$22.07
Thermostat
Part Number: 21210AA260
Other Names: Thermostat And Gasket Ay More Names
Description: 2.5L. Legacy, Outback. More Info
Fits:
  • Subaru:
    • Crosstrek,
    • Impreza,
    • Legacy,
    • Outback,
    • XV Crosstrek
MSRP $32.50
$23.60
MSRP $32.50
$23.60
Thermostat
Part Number: 21210AA160
Other Names: Thermostat And Gasket Ay More Names
Description: Legacy. With turbo. More Info
Fits:
  • Subaru:
    • Legacy,
    • Outback
MSRP $30.40
$22.07
MSRP $30.40
$22.07
Thermostat Cover
Part Number: 11060AA150
Other Names: Thermostat Housing, Cover Thermo More Names
Description: Legacy/Outback. 3.0l. 2006-07. Tribeca. More Info
Fits:
  • Subaru:
    • B9 Tribeca,
    • Legacy,
    • Outback
MSRP $25.13
$18.25
MSRP $25.13
$18.25
Thermostat Cover
Part Number: 11060AA390
Positions: Upper
Other Names: Thermostat Housing, Cover Thermo More Names
Description: 2.5L, thermostat. 2.5L, upper. More Info
Fits:
  • Subaru:
    • Crosstrek,
    • Forester,
    • Legacy,
    • Outback
MSRP $17.53
$12.73
MSRP $17.53
$12.73
Thermostat Unit
Part Number: 21200AA200
Other Names: Thermostat Assembly More Names
Description: 2.5L without turbo, 2010-12. More Info
Fits:
  • Subaru:
    • Legacy,
    • Outback
MSRP $22.28
$16.18
MSRP $22.28
$16.18
Thermostat Cover
Part Number: 11060AA190
Other Names: Thermostat Housing, Cover Thermo More Names
Description: 3.6L. Legacy/Outback. 2008-14. Tribeca. More Info
Fits:
  • Subaru:
    • Legacy,
    • Outback,
    • Tribeca
MSRP $20.78
$15.09
MSRP $20.78
$15.09
Thermostat Unit
Part Number: 21200AA230
Other Names: Thermostat Assembly More Names
Description: 2.5L with turbo. More Info
Notes: Included with thermostat. More Notes
Fits:
  • Subaru:
    • Legacy,
    • Outback
MSRP $22.28
$16.18
MSRP $22.28
$16.18
Thermostat Housing
Part Number: 11060AA061
Other Names: Thermostat Cover, Water Inlet, Engine Coolant Thermostat Housing, Cover Thermo More Names
Replaces: 11060AA060
Notes: Included with repair kit. Included with thermostat unit. More Notes
Fits:
  • Subaru:
    • Baja,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • SVX,
    • WRX STI
  • 2 more
MSRP $31.55
$22.91
MSRP $31.55
$22.91
Thermostat Housing
Part Number: 11060AA071
Other Names: Thermostat Cover, Cover Thermo More Names
Replaces: 11060AA050, 11060AA070
Description: Without turbo. Manual trans. 2.5L, 2002-05. Forester. All. Impreza. 2.5l. 2.5L, 2005. 2.5L, 2006-07. Baja. Legacy/Outback. 2.5l. More Info
Fits:
  • Subaru:
    • Baja,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback
MSRP $23.38
$16.98
MSRP $23.38
$16.98
Thermostat Cover
Part Number: 11060AA360
Positions: Rear
Other Names: Thermostat Housing, Cover Thermo More Names
Description: Rear. 2.0L, without hybrid, auto trans only. More Info
Notes: Included with water pipe. More Notes
Fits:
  • Subaru:
    • Ascent,
    • Crosstrek,
    • Impreza
MSRP $17.55
$12.74
MSRP $17.55
$12.74
Thermostat Unit
Part Number: 21210AA080
Other Names: Thermostat, Thermostat And Gasket Ay More Names
Description: 3.6L. Legacy/Outback. 2.5l. Tribeca. 2008-14. 2.5L without turbo, 2009-10. Legacy/Outback. 3.0l. 2006-07. More Info
Fits:
  • Subaru:
    • B9 Tribeca,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • Tribeca
  • 1 more
MSRP $30.40
$22.07
MSRP $30.40
$22.07
Thermostat Housing Bolt
Part Number: 21177AA000
Other Names: Engine Coolant Thermostat Housing Bolt, Bolt More Names
Description: 2.5L, 2005. More Info
Fits:
  • Subaru:
    • Baja,
    • Legacy,
    • Outback
MSRP $0.76
$0.46
MSRP $0.76
$0.46
Engine Coolant Thermostat
Part Number: 21200AA121
Other Names: Thermostat More Names
Replaces: 21200AA050, 21200AA060, 21200AA100, 21200AA120, 317534302, 417537000, 417537300
Description: All models. XT, sedan, coupe, wagon,hatchback. Loyale. Brat. XT coupe. 1.8l. More Info
Fits:
  • Subaru:
    • Brat,
    • DL,
    • GL,
    • GL-10,
    • Justy,
    • Loyale,
    • RX,
    • Standard,
    • XT
  • 4 more
MSRP $22.28
$16.18
MSRP $22.28
$16.18
Engine Coolant Thermostat
Part Number: 21200AA170
Other Names: Thermostat, Thermostat Cover Bolt, Thermostat Assembly More Names
Description: Thermostat. Impreza. Forester. 2.5L, 2006-07. More Info
Notes: Included with thermostat unit. More Notes
Fits:
  • Subaru:
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • Tribeca
MSRP $22.28
$16.18
MSRP $22.28
$16.18
Engine Coolant Thermostat
Part Number: 21210AA030
Other Names: Thermostat Unit, Thermostat, Repair Kit, Thermostat And Gasket Ay More Names
Description: 3.6L. Legacy, Outback. Forester. Thermostat. Incl.Gasket. 2.5L, 2005. 2.0L, with gasket. More Info
Fits:
  • Subaru:
    • Baja,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • WRX STI
  • 1 more
MSRP $30.40
$22.07
MSRP $30.40
$22.07
Engine Coolant Thermostat
Part Number: 21210AA181
Positions: Lower
Other Names: Thermostat, Thermostat And Gasket Ay More Names
Replaces: 21210AA180
Description: Forester. Lower. 2.5L without turbo, 2011-13. BRZ. No.2 ( at water pump). Engine Cooling. Incl.Gasket. More Info
Notes: Includes Gasket. More Notes
Fits:
  • Subaru:
    • BRZ,
    • Forester
MSRP $30.40
$22.07
MSRP $30.40
$22.07
Engine Coolant Thermostat
Part Number: 21210AA190
Positions: Upper, Rear
Other Names: Thermostat, Temp Sensor, Thermostat And Gasket Ay More Names
Description: Transmission Cooling. Incl.Gasket. Upper, auto trans only. BRZ. Impreza. Rear. 2.0L, without hybrid, auto trans only. XV Crosstrek. More Info
Notes: Includes Gasket. Included with water pipe. More Notes
Fits:
  • Subaru:
    • Ascent,
    • BRZ,
    • Crosstrek,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • XV Crosstrek
  • 3 more
MSRP $30.40
$22.07
MSRP $30.40
$22.07
Engine Coolant Thermostat
Part Number: 21200AA072
Other Names: Thermostat More Names
Replaces: 21200AA070, 21200AA071
Notes: Included with repair kit. Included with thermostat unit. More Notes
Fits:
  • Subaru:
    • Baja,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • SVX,
    • WRX STI
  • 2 more
MSRP $27.50
$19.97
MSRP $27.50
$19.97
Engine Coolant Thermostat
Part Number: 21210AA211
Other Names: Thermostat, Thermostat And Gasket Ay More Names
Replaces: 21210AA210
Description: Impreza. Legacy. Without turbo. Outback. XV Crosstrek. Engine Cooling. Incl.Gasket. More Info
Notes: Includes Gasket. More Notes
Fits:
  • Subaru:
    • Crosstrek,
    • Impreza,
    • Legacy,
    • Outback,
    • XV Crosstrek
MSRP $31.67
$22.99
MSRP $31.67
$22.99
Engine Coolant Thermostat Gasket
Part Number: 21236AA100
Positions: Rear
Other Names: Gasket, Thermostat O-Ring, Thermostat Gasket, Thermostat Seal, Temp Sensor O-Ring, Gasket Thermo More Names
Description: Transmission Cooling. Impreza. Rear. 2.0L, without hybrid. More Info
Notes: Included with thermostat. Included with temp sensor. More Notes
Fits:
  • Subaru:
    • Ascent,
    • BRZ,
    • Crosstrek,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • XV Crosstrek
  • 3 more
MSRP $3.92
$2.84
MSRP $3.92
$2.84
Engine Coolant Thermostat Housing
Part Number: 11060AA102
Other Names: Thermostat Cover, Thermostat Housing, Cover Thermo More Names
Description: Outback. 3.0l. More Info
Fits:
  • Subaru:
    • Outback
MSRP $28.67
$20.81
MSRP $28.67
$20.81
Engine Coolant Thermostat Housing
Part Number: 11060AA270
Other Names: Thermostat Housing, Water Inlet, Cover Thermo More Names
Description: Transmission Cooling. Legacy, Outback. XV Crosstrek. Without hybrid. Impreza. More Info
Fits:
  • Subaru:
    • Crosstrek,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • XV Crosstrek
  • 1 more
MSRP $17.53
$12.73
MSRP $17.53
$12.73
Engine Coolant Thermostat Housing
Part Number: 11060AA260
Positions: Lower
Other Names: Thermostat Housing, Water Inlet, Thermostat Cover, Outlet Tube, Cover Thermo More Names
Fits:
  • Subaru:
    • BRZ,
    • Crosstrek,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • XV Crosstrek
  • 2 more
MSRP $23.70
$17.21
MSRP $23.70
$17.21
Engine Coolant Thermostat Housing
Part Number: 11060AA320
Other Names: Cover, Thermostat Housing, Cover Thermo More Names
Description: BRZ. Manual trans. Transmission Cooling. Block-Off Plate. More Info
Fits:
  • Subaru:
    • BRZ
MSRP $7.37
$5.35
MSRP $7.37
$5.35
Engine Coolant Thermostat Housing Bolt
Part Number: 01040625A
Other Names: Thermostat Cover Bolt, Thermostat Bolt, Thermostat Housing Bolt, Cooling Pipe Bolt, Water Manifold Bolt, Water Pump Bolt, Water... More Names
Description: 3.6L. 2.5L, 2006-07. 2.5L, 2002-05. 2.5L without turbo, 2009-10. 2.0L. More Info
Notes: Included with water pipe. More Notes
Fits:
  • Subaru:
    • B9 Tribeca,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • Tribeca
  • 1 more
MSRP $0.78
$0.47
MSRP $0.78
$0.47
Engine Coolant Thermostat Housing Bolt
Part Number: 808206040
Other Names: Thermostat Housing Bolt, Water Pump Bolt, Water Pipe Bolt, Water Manifold Bolt, Thermostat Cover Bolt, Engine Coolant Pipe Bolt,... More Names
Description: 2.5L. 3.6L. 2.0L, with hybrid. More Info
Notes: Included with water pipe. More Notes
Fits:
  • Subaru:
    • BRZ,
    • Crosstrek,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • WRX,
    • XV Crosstrek
  • 3 more
MSRP $1.68
$1.22
MSRP $1.68
$1.22
Thermostat
Part Number: 21210AA300
Description: Crosstrek. 2.0L, with hybrid. More Info
Notes: Includes Gasket. More Notes
Fits:
  • Subaru:
    • Crosstrek,
    • Impreza
MSRP $30.40
$22.07
MSRP $30.40
$22.07
Thermostat
Part Number: 73540FL640
Other Names: Thms Thermo Ay More Names
Description: With hybrid. More Info
Notes: Included with AC & heater assembly. More Notes
Fits:
  • Subaru:
    • Crosstrek
MSRP $47.77
$34.11
MSRP $47.77
$34.11
Thermostat
Part Number: 21200AA080
Description: All models. Xt6. XT coupe. 2.7l. More Info
Fits:
  • Subaru:
    • XT
MSRP $22.28
$16.18
MSRP $22.28
$16.18
Thermostat
Part Number: 21200KA131
Replaces: 21200KA130
Description: Justy. With fuel injection. More Info
Fits:
  • Subaru:
    • Justy
MSRP $22.28
$16.18
MSRP $22.28
$16.18
HVAC Evaporator Temperature Switch
Part Number: 73071AA030
Other Names: Thermostat Control More Names
Fits:
  • Subaru:
    • Legacy
MSRP $77.68
$55.47
MSRP $77.68
$55.47
Thermistor
Part Number: 73540SA020
Other Names: Thermostat Cooling More Names
Description: Manual control, from 2-1-05. More Info
Notes: Included with evaporator assembly. More Notes
Fits:
  • Subaru:
    • Forester
MSRP $95.60
$67.11
MSRP $95.60
$67.11
Gasket
Part Number: 21236AA010
Other Names: Thermostat Gasket, Engine Coolant Thermostat Gasket, Thermostat Housing Gasket, Thermostat Unit Gasket, Thermostat Cover Gasket,... More Names
Replaces: 21236AA000
Notes: Included with repair kit. Included with thermostat unit. More Notes
Fits:
  • Subaru:
    • B9 Tribeca,
    • Baja,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • SVX,
    • Tribeca,
    • WRX STI
  • 4 more
MSRP $3.62
$2.63
MSRP $3.62
$2.63
HVAC Evaporator Temperature Switch
Part Number: 73540FL500
Other Names: Thermostat Ay Cooling More Names
Fits:
  • Subaru:
    • Crosstrek
MSRP $47.73
$34.08
MSRP $47.73
$34.08
Gasket
Part Number: 21236AA050
Other Names: Thermostat Gasket, Engine Coolant Thermostat Gasket, Gasket Thermo More Names
Description: Forester. 2.5L without turbo, 2011-13. Impreza. Legacy/Outback. XV Crosstrek. Engine Cooling. More Info
Notes: Included with thermostat. Part cannot be reused/reinstalled. Included with thermostat. Part is not reuseable, replace only. More Notes
Fits:
  • Subaru:
    • BRZ,
    • Crosstrek,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • XV Crosstrek
  • 2 more
MSRP $3.93
$2.86
MSRP $3.93
$2.86
Water Inlet
Part Number: 11060AA300
Positions: Lower, Front
Other Names: Thermostat Housing, Water Outlet, Thermostat Cover, Cover Thermo More Names
Description: Impreza. WRX. Front. Crosstrek. Acsent. Forester. With turbo. 2.0L, with hybrid. 2.5L, lower. More Info
Fits:
  • Subaru:
    • Ascent,
    • Crosstrek,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • WRX
  • 2 more
MSRP $33.37
$23.82
MSRP $33.37
$23.82
Water Pump Bolt
Part Number: 808206210
Other Names: Thermostat Housing Bolt, Water Pipe Bolt, Thermostat Cover Bolt, Thermostat Bolt, Water Outlet Bolt, Bolt 6X25X18 More Names
Description: 2.5L without turbo. 2.5L, thermostat. More Info
Fits:
  • Subaru:
    • Ascent,
    • Impreza,
    • Legacy,
    • Outback
MSRP $0.96
$0.58
MSRP $0.96
$0.58
Temp Sensor
Part Number: 73540FL010
Positions: Inner
Other Names: Thermostatic Switch, Thermistor Thermo Ay More Names
Description: Inner components, #2. Forester. More Info
Notes: Included with AC & heater assembly. More Notes
Fits:
  • Subaru:
    • Forester
MSRP $47.77
$34.11
MSRP $47.77
$34.11
Cover O-Ring
Part Number: 806929050
Other Names: Engine Coolant Thermostat Gasket, Engine Coolant Thermostat O-Ring, O Ring 29.7X3.5 More Names
Description: Transmission Cooling. Block-Off Plate. More Info
Fits:
  • Subaru:
    • BRZ
MSRP $1.85
$1.34
MSRP $1.85
$1.34
Temp Sending Unit
Part Number: 21203AA000
Other Names: Engine Coolant Temperature Sender, Thermostat Guage Ay More Names
Replaces: 820804150
Description: All models. Xt6, XT, sedan,coupe, wagon. Loyale, XT coupe. More Info
Fits:
  • Subaru:
    • DL,
    • GL,
    • GL-10,
    • Loyale,
    • XT
MSRP $35.65
$25.45
MSRP $35.65
$25.45
Pulley Bolt
Part Number: 800606980
Other Names: Thermostat Housing Bolt, Engine Water Pump Pulley Bolt, Bolt 6X12X12 More Names
Description: 2.5L without turbo, 2011-13. 2.5L without turbo, 2013-14. 2.4L turbo. 2.0L, with hybrid. More Info
Fits:
  • Subaru:
    • Ascent,
    • BRZ,
    • Crosstrek,
    • Forester,
    • Impreza,
    • Legacy,
    • Outback,
    • WRX,
    • XV Crosstrek
  • 4 more
MSRP $0.62
$0.38
MSRP $0.62
$0.38
Hose & Tube Assembly Bolt
Part Number: 010406250
Other Names: Thermostat Housing Bolt, Discharge Hose Bolt, Evaporator Tube Bolt, Water Pump Bolt, Cooler Pipe Bolt, Tube Assembly Bolt, Flange Bolt More Names
Description: 2.5L. Type 2. With hybrid. More Info
Fits:
  • Subaru:
    • Crosstrek,
    • Impreza,
    • WRX STI
MSRP $0.86
$0.52
MSRP $0.86
$0.52
Thermostat Housing
Part Number: 11060AA220
Other Names: Water Inlet, Cover Thermo More Names
Description: Legacy. With turbo. More Info
Fits:
  • Subaru:
    • Legacy,
    • Outback
MSRP $33.37
$23.82
MSRP $33.37
$23.82
Thermostat Housing
Part Number: 417547100
Other Names: Cover Thermo More Names
Description: Hatchback. All models. Brat. More Info
Fits:
  • Subaru:
    • Brat,
    • DL,
    • GL,
    • GL-10,
    • Justy,
    • Standard,
    • XT
  • 2 more
MSRP $18.23
$13.24
MSRP $18.23
$13.24
Thermostat Housing
Part Number: 417545900
Other Names: Cover Thermo More Names
Description: All models. Justy. Without fuel injection. More Info
Fits:
  • Subaru:
    • Justy
MSRP $16.92
$12.28
MSRP $16.92
$12.28

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