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2004 Saturn Ion

2004 Saturn Ion Oxygen Sensors

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Before Catalytic Converter Oxygen Sensor, 4-wire, 4 Cyl., 2.0/2.2L Engines, B1S1
Part Number: REPG960901
Guaranteed to Fit
$23.98
Vehicle Fitment
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L B1S1
  • 2004 Saturn Ion 3 4 Cyl 2.2L B1S1
  • 2004 Saturn Ion 2 4 Cyl 2.2L B1S1
  • 2004 Saturn Ion 1 4 Cyl 2.2L B1S1
Product Details
Location : Before Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 12.3 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25024273Connector Gender : Male 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
Before Catalytic Converter Oxygen Sensors, 4-wire, 4 Cyl., 2.0/2.2L Engines, B1S1
Part Number: SET-REPG960901-2
Guaranteed to Fit
$45.49
Vehicle Fitment
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L B1S1
  • 2004 Saturn Ion 3 4 Cyl 2.2L B1S1
  • 2004 Saturn Ion 2 4 Cyl 2.2L B1S1
  • 2004 Saturn Ion 1 4 Cyl 2.2L B1S1
Product Details
Location : Before Catalytic ConverterComponents : (2) Oxygen SensorsType : 4-wireQuantity Sold : Set of 2Product Fit : Direct FitWire Length : 12.3 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeConnector Gender : Male 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
Walker Products Original Equipment Base Sensor Oxygen Sensor, Sold individually 4-wire
Part Number: 25024273
Guaranteed to Fit
$48.49
Vehicle Fitment
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L B1S1
  • 2004 Saturn Ion 3 4 Cyl 2.2L B1S1
  • 2004 Saturn Ion 2 4 Cyl 2.2L B1S1
  • 2004 Saturn Ion 1 4 Cyl 2.2L B1S1
Product Details
Location : Before Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 12.2 in. Wire LengthInterchange Part Number : REPG960901Warranty : 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
Walker Products Aftermarket Base Sensor Oxygen Sensor, Sold individually 4-wire
Part Number: WKP35034094
Guaranteed to Fit
$33.99
Vehicle Fitment
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L Eng. VIN: P, FI, Supercharged, GAS
  • 2004 Saturn Ion 3 4 Cyl 2.2L Naturally Aspirated, GAS
  • 2004 Saturn Ion 2 4 Cyl 2.2L Naturally Aspirated, GAS
  • 2004 Saturn Ion 1 4 Cyl 2.2L Naturally Aspirated, GAS
Product Details
Location : Before Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 12.20 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
Part Number: NG21045
Guaranteed to Fit
$39.99
Vehicle Fitment
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L
  • 2004 Saturn Ion 1 4 Cyl 2.2L
  • 2004 Saturn Ion 3 4 Cyl 2.2L
  • 2004 Saturn Ion 2 4 Cyl 2.2L
Product Details
Location : Before Catalytic ConverterNotes : Heated Sensor TypeType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 9.75 in. Wire LengthThread Size : 18 mm Thread SizeMounting Style : Threaded-in Mounting StyleInterchange Part Number : 13474Warranty : 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.

After Catalytic Converter Oxygen Sensor, Sold individually 4-wire
Part Number: NP2344235
Guaranteed to Fit
$51.99
Vehicle Fitment
  • 2004 Saturn Ion 3 4 Cyl 2.2L O.E. Quality Replacement Sensor
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L O.E. Quality Replacement Sensor
  • 2004 Saturn Ion 1 4 Cyl 2.2L O.E. Quality Replacement Sensor
  • 2004 Saturn Ion 2 4 Cyl 2.2L O.E. Quality Replacement Sensor
Product Details
Location : After Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitInterchange Part Number : 21045Warranty : 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.

Before Catalytic Converter GM Original Equipment Series Oxygen Sensor, Sold individually 4-wire
Part Number: AC213968
Guaranteed to Fit
$48.99
Vehicle Fitment
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L Reroute Harness To Service Past 2003, In Exh Manifold/Crossover
  • 2004 Saturn Ion 1 4 Cyl 2.2L In Exh Manifold/Crossover, Reroute Harness To Service Past 2003
  • 2004 Saturn Ion 3 4 Cyl 2.2L In Exh Manifold/Crossover, Reroute Harness To Service Past 2003
  • 2004 Saturn Ion 2 4 Cyl 2.2L In Exh Manifold/Crossover, Reroute Harness To Service Past 2003
Product Details
Location : Before Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 7.48 in. Wire LengthThread Size : 18 mm Thread SizeInterchange Part Number : 21045Connector Gender : Male ConnectorWarranty : 24-months or unlimited mile AC Delco 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 : GM Original Equipment Series
Oxygen Sensor, Sold individually 4-wire
Part Number: NP2344646
Guaranteed to Fit
$46.49
Vehicle Fitment
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L O.E. Quality Replacement Sensor
  • 2004 Saturn Ion 3 4 Cyl 2.2L O.E. Quality Replacement Sensor
  • 2004 Saturn Ion 2 4 Cyl 2.2L O.E. Quality Replacement Sensor
  • 2004 Saturn Ion 1 4 Cyl 2.2L O.E. Quality Replacement Sensor
Product Details
Location : Before Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitInterchange Part Number : 2344668Warranty : 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 Walker Products Aftermarket Base Sensor Oxygen Sensor, Sold individually 4-wire
Part Number: WKP35034289
Guaranteed to Fit
$35.99
Vehicle Fitment
  • 2004 Saturn Ion 3 4 Cyl 2.2L Naturally Aspirated, GAS
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L Eng. VIN: P, FI, Supercharged, GAS
  • 2004 Saturn Ion 1 4 Cyl 2.2L Naturally Aspirated, GAS
  • 2004 Saturn Ion 2 4 Cyl 2.2L Naturally Aspirated, GAS
Product Details
Location : After Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 37.01 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
Downstream OE Replacement Series Oxygen Sensor, Sold individually 4-wire
Part Number: BS15044
Guaranteed to Fit
$55.99
Vehicle Fitment
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L OE manufactured part
  • 2004 Saturn Ion 2 4 Cyl 2.2L OE manufactured part
  • 2004 Saturn Ion 3 4 Cyl 2.2L OE manufactured part
  • 2004 Saturn Ion 1 4 Cyl 2.2L OE manufactured part
Product Details
Location : DownstreamType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 37.4 in. Wire LengthInterchange Part Number : 13071, 2344621Warranty : 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 : European Vehicle PartsSeries : OE Replacement Series
After Catalytic Converter Oxygen Sensor, Sold individually 4-wire
Part Number: NG21041
Guaranteed to Fit
$47.99
Vehicle Fitment
  • 2004 Saturn Ion 3 4 Cyl 2.2L
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L
  • 2004 Saturn Ion 1 4 Cyl 2.2L
  • 2004 Saturn Ion 2 4 Cyl 2.2L
Product Details
Location : After Catalytic ConverterNotes : Heated Sensor TypeType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 36.25 in. Wire LengthThread Size : 18 mm Thread SizeMounting Style : Threaded-in Mounting StyleInterchange Part Number : 21045Warranty : 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.

Oxygen Sensor, Sold individually 4-wire
Part Number: DELES20096
Guaranteed to Fit
$56.99
Vehicle Fitment
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L
  • 2004 Saturn Ion 3 4 Cyl 2.2L
  • 2004 Saturn Ion 2 4 Cyl 2.2L
  • 2004 Saturn Ion 1 4 Cyl 2.2L
Product Details
Location : FrontType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 12.2 in. Wire LengthThread Size : 18 x 1.5 mm Thread SizeInterchange Part Number : 13193Warranty : 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.

Oxygen Sensor, Sold individually
Part Number: ACB88263161
Guaranteed to Fit
$57.87
Vehicle Fitment
  • 2004 Saturn Ion 2 4 Cyl 2.2L Naturally Aspirated, DOHC, GAS, Oxygen Sensor Compatible with: 234-4209
  • 2004 Saturn Ion 1 4 Cyl 2.2L Naturally Aspirated, DOHC, GAS, Oxygen Sensor Compatible with: 234-4209
  • 2004 Saturn Ion 3 4 Cyl 2.2L Naturally Aspirated, DOHC, GAS, Oxygen Sensor Compatible with: 234-4209
Product Details
Location : Before or After Catalytic ConverterQuantity Sold : Sold individuallyProduct Fit : Direct FitWarranty : Aceon 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 Walker Products Original Equipment Base Sensor Oxygen Sensor, Sold individually 4-wire
Part Number: 25024443
Guaranteed to Fit
$57.49
Vehicle Fitment
  • 2004 Saturn Ion 3 4 Cyl 2.2L B1S2
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L B1S2
  • 2004 Saturn Ion 1 4 Cyl 2.2L B1S2
  • 2004 Saturn Ion 2 4 Cyl 2.2L B1S2
Product Details
Location : After Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 37.01 in. Wire LengthInterchange Part Number : 21045Warranty : 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 or After Catalytic Converter Oxygen Sensor, 4-wire, 4 Cyl., 2.0/2.2L Engines, O.E. Quality Universal Replacement Sensor - Before or After Catalytic Converter
Part Number: NP2344209
Guaranteed to Fit
$46.99
Vehicle Fitment
  • 2004 Saturn Ion 1 4 Cyl 2.2L O.E. Quality Universal Replacement Sensor
  • 2004 Saturn Ion 3 4 Cyl 2.2L O.E. Quality Universal Replacement Sensor
  • 2004 Saturn Ion Red Line 4 Cyl 2.0L O.E. Quality Universal Replacement Sensor
  • 2004 Saturn Ion 2 4 Cyl 2.2L O.E. Quality Universal Replacement Sensor
Product Details
Location : Before or After Catalytic ConverterNotes : 0.71 in. Thread Diameter; Heated Sensor; Universal FitType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 11.77 in. Wire LengthMounting Style : Threaded-in Mounting StyleReplaces OE Number : 12559850, 12570149, 88975496, 8946502110, 8946502190, 8946513030, 8946548170, 8946548180, 8946706070, 8946706110, 8946712010, 8946748050, MD183145, MD184939, MD185334, MR985103Interchange Part Number : 2344065Warranty : 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.

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Product Questions & Answers

Q:Is the upstream co2 sensor actually a air fuel sensor?
David P.
A:BEST ANSWERI need 2 sensors the bank 1 sensor 2 and the bank 2 sensor 2 for toyota RAV4 2001 and the front ABS sensors which would be the code of these products to order them without mistake, thank you. Show less
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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.