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2003 Subaru Forester

2003 Subaru Forester Oxygen Sensors

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Before Catalytic Converter Oxygen Sensor, B1S1, Sold individually, 4-wire, 4 Cyl 2.5L
Part Number: ARBS960922
Guaranteed to Fit
$36.49
Vehicle Fitment
  • 2003 Subaru Forester XS 4 Cyl 2.5L B1S1
  • 2003 Subaru Forester X 4 Cyl 2.5L B1S1
Product Details
Location : Before Catalytic ConverterNotes : Air-Fuel sensorType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 19.9 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25054011Connector Gender : Female ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Returns Policy : 30-Day Return Policy
After Catalytic Converter Oxygen Sensor, B1S2, Sold individually, 4-wire, 4 Cyl 2.5L
Part Number: RS96090009
Guaranteed to Fit
$24.99
Vehicle Fitment
  • 2003 Subaru Forester X 4 Cyl 2.5L B1S2
  • 2003 Subaru Forester XS 4 Cyl 2.5L B1S2
Product Details
Location : After Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 18.31 in. Wire LengthInterchange Part Number : 25024295Warranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Returns Policy : 30-Day Return Policy
After Catalytic Converter Oxygen Sensor, Eng. Designation: EJ251, FI, Naturally Aspirated, GAS, Sold individually, 4-wire, 4 Cyl 2.5L, Walker Products Aftermarket Base Sensor
Part Number: WKP35034337
Guaranteed to Fit
$61.32
Vehicle Fitment
  • 2003 Subaru Forester X 4 Cyl 2.5L Eng. Designation: EJ251, FI, Naturally Aspirated, GAS
  • 2003 Subaru Forester XS 4 Cyl 2.5L Eng. Designation: EJ251, FI, Naturally Aspirated, GAS
Product Details
Location : After Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 18.31 in. Wire LengthWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Walker Products Aftermarket Base Sensor
Catalytic Converter Kit, CARB and Federal EPA Standards, 50-state Legal, 4 Cyl., 2.2L/2.5L Engines, Direct Fit, includes Oxygen Sensor
Part Number: KIT-083023-45
Guaranteed to Fit
$1,063.99
Vehicle Fitment
  • 2003 Subaru Forester X 4 Cyl 2.5L EO# D-193-96; Eng Fam No: 3Fjxx02.5Jhm
  • 2003 Subaru Forester XS 4 Cyl 2.5L EO# D-193-96; Eng Fam No: 3Fjxx02.5Jhm
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalComponents : (1) Catalytic Converter and (1) Oxygen SensorType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : KitEO Number : D-193-96Gasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 25024295Promotions : Magnaflow Catalytic Converter SaleTube Material : Stainless Steel
Front Oxygen Sensor, Sold individually, 4-wire, 4 Cyl 2.5L
Part Number: DELES10936
Guaranteed to Fit
$193.49
Vehicle Fitment
  • 2003 Subaru Forester XS 4 Cyl 2.5L
  • 2003 Subaru Forester X 4 Cyl 2.5L
Product Details
Location : FrontType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 22.05 in. Wire LengthThread Size : 18 x 1.5 mm Thread SizeInterchange Part Number : 2344620, 13071Warranty : 1-year or 12,000-mile Delphi limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Before Catalytic Converter Oxygen Sensor, Sold individually, 2-wire, 4 Cyl 2.5L
Part Number: NP2349015
Guaranteed to Fit
$158.99
Vehicle Fitment
  • 2003 Subaru Forester XS 4 Cyl 2.5L
  • 2003 Subaru Forester X 4 Cyl 2.5L
Product Details
Location : Before Catalytic ConverterType : 2-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitInterchange Part Number : 2349120Warranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

After Catalytic Converter Oxygen Sensor, O.E. Quality Replacement Sensor, Sold individually, 4-wire, 4 Cyl 2.5L
Part Number: NP2344706
Guaranteed to Fit
$80.99
Vehicle Fitment
  • 2003 Subaru Forester X 4 Cyl 2.5L O.E. Quality Replacement Sensor
  • 2003 Subaru Forester XS 4 Cyl 2.5L O.E. Quality Replacement Sensor
Product Details
Location : After Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitInterchange Part Number : 13469, 24578Warranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

After Catalytic Converter Oxygen Sensor, B1S2, Sold individually, 4-wire, 4 Cyl 2.5L, Walker Products Original Equipment Base Sensor
Part Number: 25024295
Guaranteed to Fit
$79.49
Vehicle Fitment
  • 2003 Subaru Forester X 4 Cyl 2.5L B1S2
  • 2003 Subaru Forester XS 4 Cyl 2.5L B1S2
Product Details
Location : After Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 18.31 in. Wire LengthInterchange Part Number : RS96090009Warranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Walker Products Original Equipment Base Sensor
Downstream Oxygen Sensor, Sold individually, 4-wire, 4 Cyl 2.5L, OE Replacement Series
Part Number: BS13469
Guaranteed to Fit
$75.99
Vehicle Fitment
  • 2003 Subaru Forester X 4 Cyl 2.5L
  • 2003 Subaru Forester XS 4 Cyl 2.5L
Product Details
Location : DownstreamType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 19.5 in. Wire LengthInterchange Part Number : 24578Warranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement Series
After Catalytic Converter Oxygen Sensor, Sold individually, 4-wire, 4 Cyl 2.5L
Part Number: NG24578
Guaranteed to Fit
$81.99
Vehicle Fitment
  • 2003 Subaru Forester X 4 Cyl 2.5L
  • 2003 Subaru Forester XS 4 Cyl 2.5L
Product Details
Location : After Catalytic ConverterNotes : Heated Sensor TypeType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 18.25 in. Wire LengthThread Size : 18 mm Thread SizeMounting Style : Threaded-in Mounting StyleInterchange Part Number : 15730, SG300Warranty : NGK limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Rear Oxygen Sensor, Sold individually, 4-wire, 4 Cyl 2.5L
Part Number: DELES20101
Guaranteed to Fit
$95.99
Vehicle Fitment
  • 2003 Subaru Forester XS 4 Cyl 2.5L
  • 2003 Subaru Forester X 4 Cyl 2.5L
Product Details
Location : RearType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 18.31 in. Wire LengthThread Size : 18 x 1.5 mm Thread SizeInterchange Part Number : 2344212Warranty : 1-year or 12,000-mile Delphi limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Before Catalytic Converter Oxygen Sensor, B1S1, Sold individually, 4-wire, 4 Cyl 2.5L, Walker Products Original Equipment Base Sensor
Part Number: 25054011
Guaranteed to Fit
$197.99
Vehicle Fitment
  • 2003 Subaru Forester XS 4 Cyl 2.5L B1S1
  • 2003 Subaru Forester X 4 Cyl 2.5L B1S1
Product Details
Location : Before Catalytic ConverterNotes : Air/Fuel sensorType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 22.05 in. Wire LengthInterchange Part Number : ARBS960922Warranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Walker Products Original Equipment Base Sensor
Before Catalytic Converter Oxygen Sensor, Eng. Designation: EJ251, FI, Naturally Aspirated, GAS, Sold individually, 4-wire, 4 Cyl 2.5L, Walker Products Aftermarket Base Sensor
Part Number: WKP35064022
Guaranteed to Fit
$125.49
Vehicle Fitment
  • 2003 Subaru Forester XS 4 Cyl 2.5L Eng. Designation: EJ251, FI, Naturally Aspirated, GAS
  • 2003 Subaru Forester X 4 Cyl 2.5L Eng. Designation: EJ251, FI, Naturally Aspirated, GAS
Product Details
Location : Before Catalytic ConverterNotes : Air/Fuel sensorType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 22.05 in. Wire LengthWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Walker Products Aftermarket Base Sensor
Before Catalytic Converter Oxygen Sensor, Sold individually, 4-wire, 4 Cyl 2.5L
Part Number: NG24664
Guaranteed to Fit
$249.99
Vehicle Fitment
  • 2003 Subaru Forester X 4 Cyl 2.5L
  • 2003 Subaru Forester XS 4 Cyl 2.5L
Product Details
Location : Before Catalytic ConverterNotes : 0.38 in. Thread Length; Heated Sensor TypeType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 22 in. Wire LengthThread Size : 18 mm Thread SizeInterchange Part Number : 13249Warranty : NGK limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Upstream Oxygen Sensor, OE sensor technology, Sold individually, 4-wire, 4 Cyl 2.5L, OE Replacement Series
Part Number: BS15501
Guaranteed to Fit
$241.49
Vehicle Fitment
  • 2003 Subaru Forester XS 4 Cyl 2.5L OE sensor technology
  • 2003 Subaru Forester X 4 Cyl 2.5L OE sensor technology
Product Details
Location : UpstreamType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 19.7 in. Wire LengthInterchange Part Number : 2344212Warranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement Series
Page 1 of 3 | Showing 1 - 15 of 31 results

Top Rated Products

Working well, came in reasonable time considering weather pattern.
Felicia C.
VERIFIED PURCHASER
Exact fit to the old part, it was in and out in 10 mins. I ordered the part on TuesdaSee More
James B.
VERIFIED PURCHASER

Popular Products

Helpful Automotive Resources

P2187 Code: System too Lean at Idle (Bank 1)
P2187 Code: System too Lean at Idle (Bank 1)Note that there is only one bank if your car has a straight engine and the scan tool will always refer to that bank as “Bank 1.” P2187 code indicates that your vehicle’s computer detected a potential issue with the fuel mixture at idle.
P2270 Code: O2 Sensor Signal Biased / Stuck Lean (Bank 1, Sensor 2)
P2270 Code: O2 Sensor Signal Biased / Stuck Lean (Bank 1, Sensor 2)Bank 1 is where the #1 spark plug is. O2 sensor 1/1 is the upstream sensor on Bank 1 (different for a Ford than for a Chevy or a Dodge), and O2 sensor 1/2 is the downstream sensor on Bank 1. O2 2/1 is upstream on Bank 2 and O2
P0141 Code: Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
P0141 Code: Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)With that in mind, it’s important to note that Bank 1 is always where the number 1 cylinder is located. Thus, on Ford pickups, Bank 1 is the passenger side bank, but on Chevy and Dodge pickups, Bank 1 is the driver side bank. You need to know this, or
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3Bank 1 is the side of the engine where the #1 cylinder is located. P0042 code is set when your car’s PCM determines a potential problem with the heater element circuit of the oxygen sensor.
P0135 Code: Heated O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
P0135 Code: Heated O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)Diagnostic trouble code (DTC) P0135 stands for “Oxygen O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1).” It is set when the car’s primary computer—also called the powertrain control module or PCM—determines that the heated oxygen sensor (HO2S) 1 heater current is higher or lower than the ideal amp for
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)The Bank 1 portion of the code refers to the side of the engine with the number one cylinder. Sensor 1 refers to the upstream O2 sensor.