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2021 SUBARU WRX STI Cooling & Heating

Individual Parts

Results 1 - 25 of 54

Fan Switch, Thermostatic, Radiator Probe, Adjustable 160-210 Degrees F, Kit

Part Number: HDA-3647

4.24 out of 5 stars ( 120 )

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Electric Fan, Single, 14 in. Diameter, Reversible, 1,250 cfm, Black, Plastic, Each

Part Number: HDA-3690

5.0 out of 5 stars ( 3 )

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Fan Switch, Thermostatic, Thread-In, Adjustable 160-210 Degrees F, Kit

Part Number: HDA-3651

3.03 out of 5 stars ( 31 )

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Fan Switch, Thermostatic, Radiator Probe, Adjustable 160-240 Degrees F, Kit

Part Number: HDA-3653

4.52 out of 5 stars ( 84 )

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Electric Fans, 14 in. Diameter, Puller, 1,570 cfm, 14.00 amps, Each

Part Number: HDA-3920

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Fan Control, Single, 30 Amp Relay, Thermostatic, Adjustable, 140 to 220 Degrees, Probe Sending Unit, Kit

Part Number: FSS-35879

3.25 out of 5 stars ( 4 )

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Radiator Cap, Round, 22 psi Maximum Pressure, Stainless, Black, for 32mm I.D. Radiator Necks, for use on Honda®, for Nissan, Subaru, Toyota, Each

Part Number: RDM-18-0076-A15

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Electric Fan, Single, 12 in. Diameter, Reversible, 800 cfm, Black, Plastic, Each

Part Number: HDA-3680

5.0 out of 5 stars ( 2 )

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Electric Fans, 12 in. Diameter, Puller, 1,325 cfm, 12.10 amps, Each

Part Number: HDA-3910

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Electric Fan, 14 in. Diameter, Puller/Pusher, 1,250 cfm, Black, 11.50 amps, Each

Part Number: FSS-36897

4.8 out of 5 stars ( 5 )

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Fan Switch, Thermostatic, Radiator Probe, 185 Degrees F On, 170 Degrees F Off, Kit

Part Number: HDA-3652

4.03 out of 5 stars ( 32 )

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Radiator, Downflow, Dual-row, Aluminum, Natural, Subaru, 2.5L, Manual, Each

Part Number: MIO-MMRAD-STI-08

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Electric Fans, 14 in. Diameter, Pusher, 1,500 cfm, 13.50 amps, Each

Part Number: HDA-3921

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Radiator Cap, Round, 16 psi Maximum Pressure, Stainless Steel, Black, Radium Engineering Logo, for 32mm I.D. Radiator Necks, for Nissan, Toyota, Each

Part Number: RDM-18-0076-A11

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Electric Fans, 12 in. Diameter, Pusher, 1,275 cfm, 12.80 amps, Each

Part Number: HDA-3911

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Radiator, CSF, Competition Race Spec, Aluminum, Natural, Downflow, 2 Row, Subaru, WRX, STI, Each

Part Number: CSF-7095

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Radiator, 08-14 Subaru Impreza w/ built-in oil cooler (InclWRX & STI(Multi-fit COMBO UNIT)

Part Number: CSF-7042O

Not Yet Reviewed

Estimated Ship Date: Jun 8, 2026 if ordered today

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Estimated Ship Date: Jun 8, 2026 if ordered today

Electric Fan, 12 in. Diameter, Reversible, 800 cfm, Black, Plastic, Each

Part Number: FSS-36896

5.0 out of 5 stars ( 2 )

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Radiator, CSF, Aluminum, Polished, Downflow, 1 Row, Subaru, WRX, STI, Each

Part Number: CSF-7094

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 8, 2026 if ordered today

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Estimated Ship Date: Jun 8, 2026 if ordered today

Electric Fan, 12 in. Diameter, Pusher, 1275 cfm, Black, Each

Part Number: FSS-37139

4.0 out of 5 stars ( 3 )

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Radiator, Aluminum, Downflow, Subaru, Each

Part Number: MIO-MMRADSTI08X

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Radiator, CSF, Aluminum, Black, Downflow, 1 Row, Subaru, WRX, STI, Each

Part Number: CSF-7094B

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2026 if ordered today

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Estimated Ship Date: Jun 9, 2026 if ordered today

Electric Fan, Pusher, 14 in., Black, Each

Part Number: FSS-37141

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Cabin Air Filter Elements, Gold, Particulate, Subaru, Each

Part Number: ADO-CF3304

5.0 out of 5 stars ( 1 )

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01+ Subaru WRX and STI Racing Thermostat, 68 Degrees C

Part Number: MIO-MMTS-WRX-01

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today