{
"lazyNodes": false,
"abFitnotesFlag": false,
"abCrawlReviews": false,
"productOptionsCookie": false,
"orderDelayFlag": false,
"skipSessionCookie": false,
"covidMessage": false,
"fullTitleCookie": false,
"nrLoggerCookie": false,
"checkoutReviewCookie": false,
"productOptionSeqCookie": false,
"maintenanceFlag": false,
"bufferETACookie": false,
"multiShippingDiscountFlag": false,
"newFitmentFlag": false,
"surveyOptInFlag": false,
"crossSellFlag": false,
"skuMappingFlag": false,
"paySplitCookie": false,
"callDisableFlag": false,
"zipPaymentFlag": "u",
"hassleFreeReturn": false,
"lifetimeReplacement": false,
"cpn_off": false
}Need Help? Call Us1-866-529-0412
1991 Ford Explorer
1991 Ford Explorer Oxygen Sensors
Refine by:
Shop Catalog
Showing 1 - 15 of 24 results
Display item:
15
30
45
Sort by:
Part Number: REPF960908
Guaranteed to Fit
$18.99
Vehicle Fitment
- 1991 Ford Explorer Sport 6 Cyl 4.0L
- 1991 Ford Explorer XL 6 Cyl 4.0L
- 1991 Ford Explorer XLT 6 Cyl 4.0L
- 1991 Ford Explorer Eddie Bauer 6 Cyl 4.0L
Product Details
Location : Before Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 18.82 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25024127Connector Gender : Male ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :
WARNING: 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.
Part Number: WKP35034089
Guaranteed to Fit
$32.99
Vehicle Fitment
- 1991 Ford Explorer Sport 6 Cyl 4.0L Eng. VIN: X, FI, Naturally Aspirated, GAS
- 1991 Ford Explorer XL 6 Cyl 4.0L Eng. VIN: X, FI, Naturally Aspirated, GAS
- 1991 Ford Explorer XLT 6 Cyl 4.0L Eng. VIN: X, FI, Naturally Aspirated, GAS
- 1991 Ford Explorer Eddie Bauer 6 Cyl 4.0L Eng. VIN: X, FI, Naturally Aspirated, GAS
Product Details
Location : Before Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 19.69 in. Wire LengthWarranty : 90-day Walker Products limited warrantyProp 65 Warning :
WARNING: 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.
Part Number: 25024127
Guaranteed to Fit
$29.88
Vehicle Fitment
- 1991 Ford Explorer Sport 6 Cyl 4.0L
- 1991 Ford Explorer XL 6 Cyl 4.0L
- 1991 Ford Explorer XLT 6 Cyl 4.0L
- 1991 Ford Explorer Eddie Bauer 6 Cyl 4.0L
Product Details
Location : Before Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 19.69 in. Wire LengthInterchange Part Number : ARBM960908, 15718Warranty : 90-day Walker Products limited warrantyProp 65 Warning :
WARNING: 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.
Part Number: NP2344611
Guaranteed to Fit
$37.99
Vehicle Fitment
- 1991 Ford Explorer Sport 6 Cyl 4.0L O.E. Quality Replacement Sensor
- 1991 Ford Explorer XL 6 Cyl 4.0L O.E. Quality Replacement Sensor
- 1991 Ford Explorer Eddie Bauer 6 Cyl 4.0L O.E. Quality Replacement Sensor
- 1991 Ford Explorer XLT 6 Cyl 4.0L O.E. Quality Replacement Sensor
Product Details
Location : Before Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitInterchange Part Number : 15718Warranty : 1-year Denso limited WarrantyProp 65 Warning :
WARNING: 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.
Part Number: NG22503
Guaranteed to Fit
$38.49
Vehicle Fitment
- 1991 Ford Explorer Sport 6 Cyl 4.0L
- 1991 Ford Explorer XL 6 Cyl 4.0L
- 1991 Ford Explorer XLT 6 Cyl 4.0L
- 1991 Ford Explorer Eddie Bauer 6 Cyl 4.0L
Product Details
Location : Before Catalytic ConverterNotes : Heated Sensor TypeType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 22 in. Wire LengthThread Size : 18 mm Thread SizeMounting Style : Threaded-in Mounting StyleInterchange Part Number : 15718Warranty : NGK limited warrantyProp 65 Warning :
WARNING: 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.
Part Number: BS15719
Guaranteed to Fit
$37.49
Vehicle Fitment
- 1991 Ford Explorer Sport 6 Cyl 4.0L OE Manufactured Part; Alternative Fit 1; For Part Number F09F9F472Ca; F1Uf9F472Ca; F07F9F472Ca; F07F9F472Da; F0Uf9F472Ca
- 1991 Ford Explorer XL 6 Cyl 4.0L OE Manufactured Part; Alternative Fit 1; For Part Number F09F9F472Ca; F1Uf9F472Ca; F07F9F472Ca; F07F9F472Da; F0Uf9F472Ca
- 1991 Ford Explorer XLT 6 Cyl 4.0L OE Manufactured Part; Alternative Fit 1; For Part Number F09F9F472Ca; F1Uf9F472Ca; F07F9F472Ca; F07F9F472Da; F0Uf9F472Ca
- 1991 Ford Explorer Eddie Bauer 6 Cyl 4.0L OE Manufactured Part; Alternative Fit 1; For Part Number F09F9F472Ca; F1Uf9F472Ca; F07F9F472Ca; F07F9F472Da; F0Uf9F472Ca
Product Details
Location : UpstreamType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 25.2 in. Wire LengthInterchange Part Number : 15718Warranty : 1-year Bosch limited warrantyProp 65 Warning :
WARNING: 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.
Part Number: DELES20064
Guaranteed to Fit
$41.49
Vehicle Fitment
- 1991 Ford Explorer Sport 6 Cyl 4.0L With 500mm Overall Length; With 4 Pin Connector
- 1991 Ford Explorer XL 6 Cyl 4.0L With 500mm Overall Length; With 4 Pin Connector
- 1991 Ford Explorer XLT 6 Cyl 4.0L With 500mm Overall Length; With 4 Pin Connector
- 1991 Ford Explorer Eddie Bauer 6 Cyl 4.0L With 500mm Overall Length; With 4 Pin Connector
Product Details
Type : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 19.69 in. Wire LengthThread Size : 18 x 1.5 mm Thread SizeInterchange Part Number : 15718Warranty : 1-year or 12,000-mile Delphi limited warrantyProp 65 Warning :
WARNING: 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.
Part Number: BS15729
Guaranteed to Fit
$38.49
Vehicle Fitment
- 1991 Ford Explorer XL 6 Cyl 4.0L OE Manufactured Part; For Part Number F07F9F472Ca; F07F9F472Da; F09F9F472Ca; F0Uf9F472Ca; F1Uf9F472Ca
- 1991 Ford Explorer Eddie Bauer 6 Cyl 4.0L OE Manufactured Part; For Part Number F07F9F472Ca; F07F9F472Da; F09F9F472Ca; F0Uf9F472Ca; F1Uf9F472Ca
- 1991 Ford Explorer Sport 6 Cyl 4.0L OE Manufactured Part; For Part Number F07F9F472Ca; F07F9F472Da; F09F9F472Ca; F0Uf9F472Ca; F1Uf9F472Ca
- 1991 Ford Explorer XLT 6 Cyl 4.0L OE Manufactured Part; For Part Number F07F9F472Ca; F07F9F472Da; F09F9F472Ca; F0Uf9F472Ca; F1Uf9F472Ca
Product Details
Location : UpstreamType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 29.7 in. Wire LengthInterchange Part Number : 15510Warranty : 1-year Bosch limited warrantyProp 65 Warning :
WARNING: 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.
Part Number: NP2344210
Guaranteed to Fit
$46.99
Vehicle Fitment
- 1991 Ford Explorer XL 6 Cyl 4.0L O.E. Quality Universal Replacement Sensor
- 1991 Ford Explorer Eddie Bauer 6 Cyl 4.0L O.E. Quality Universal Replacement Sensor
- 1991 Ford Explorer Sport 6 Cyl 4.0L O.E. Quality Universal Replacement Sensor
- 1991 Ford Explorer XLT 6 Cyl 4.0L O.E. Quality Universal Replacement Sensor
Product Details
Location : Before Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitReplaces OE Number : 5L8Z9F472BA, 5L8Z9G444F, 5L8Z9G444K, 5M6Z9G444A, 5W6Z9G444BA, 8F9Z9F472B, 9E5Z9F472E, ZZC418861, ZZD118860, ZZD118861, ZZDA18861, ZZDM18861Warranty : 1-year Denso limited WarrantyProp 65 Warning :
WARNING: 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.
Part Number: BS15718
Guaranteed to Fit
$40.49
Vehicle Fitment
- 1991 Ford Explorer XL 6 Cyl 4.0L OE Manufactured Part; For Part Number F09F9F472Ca; F1Uf9F472Ca
- 1991 Ford Explorer Eddie Bauer 6 Cyl 4.0L OE Manufactured Part; For Part Number F09F9F472Ca; F1Uf9F472Ca
- 1991 Ford Explorer Sport 6 Cyl 4.0L OE Manufactured Part; For Part Number F09F9F472Ca; F1Uf9F472Ca
- 1991 Ford Explorer XLT 6 Cyl 4.0L OE Manufactured Part; For Part Number F09F9F472Ca; F1Uf9F472Ca
Product Details
Location : Before Catalytic ConverterNotes : 18.9 in. Wire Length; 22mm Hex Size; Male Connector Gender; Threaded Mounting Type; SteelType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitInterchange Part Number : 15716Warranty : 1-year Bosch limited warrantyProp 65 Warning :
WARNING: 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.
Part Number: JF960908
Guaranteed to Fit
$22.74
Vehicle Fitment
- 1991 Ford Explorer Sport 6 Cyl 4.0L
- 1991 Ford Explorer XL 6 Cyl 4.0L
- 1991 Ford Explorer XLT 6 Cyl 4.0L
- 1991 Ford Explorer Eddie Bauer 6 Cyl 4.0L
Product Details
Location : Before Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 18.82 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25024127Connector Gender : Male ConnectorWarranty : 1-year JC Whitney unlimited-mileage warrantyProp 65 Warning :
WARNING: 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.
Part Number: M46A2930
Universal Fit
$145.95
Product Details
Quantity Sold : Sold individuallyProduct Fit : UniversalWarranty : 1-year MSD limited warrantyProp 65 Warning :
WARNING: 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.
Part Number: WKP250-23200
Universal Fit
$57.99
Product Details
Notes : 20.0 Wire Gauge Measurement; 18mm. Thread DiameterQuantity Sold : Sold individuallyProduct Fit : UniversalWarranty : 90-day Walker Products limited warrantyProp 65 Warning :
WARNING: This product can expose you to chemicals including Nickel (Metallic), 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.
Part Number: BS15741
Universal Fit
$48.99
Product Details
Notes : Heated Type; Metal Housing Material; Steel Color/FinishType : 4-wireQuantity Sold : Sold individuallyProduct Fit : UniversalWire Length : 27 in. Wire LengthMounting Style : Threaded-in Mounting StyleHex Size : 22 mm Hex SizeConnector Gender : Female ConnectorWarranty : 1-year Bosch limited warrantyPromotions : CarParts EuroSeries : OE Replacement Series
Part Number: WKP350-34200
Universal Fit
$36.49
Product Details
Notes : 9.37 in. Overall Length; Heated Sensor Type; 20 Wire Gauge MeasurementType : 4-wireQuantity Sold : Sold individuallyProduct Fit : UniversalWire Length : 5.83 in. Wire LengthThread Size : 18 mm Thread SizeMounting Style : Threaded-in Mounting StyleWarranty : 90-day Walker Products limited warrantyProp 65 Warning :
WARNING: 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.
Page 1 of 2 | Showing 1 - 15 of 24 results
Top Rated Products
Popular Products
Walker ProductsBefore Catalytic Converter Oxygen Sensor, Eng. VIN: X, FI, Naturally Aspirated, GAS, Sold individually, 4-wire, 6 Cyl 4.0L, Walker Products Aftermarket Base Sensor - Before Catalytic ConverterManufacturer #350-34089
( Reviews) Questions, Answers
WALKER PRODUCTS AFTERMARKET OXYGEN SENSORS
Restore your ride to optimum, OE-standard performance with the high-quality, fuel-efficient and ultra-durable design of Walker Products’ aftermarket oxygen sensors. They’re just the ticket if you&rs...
BoschUpstream Oxygen Sensor, OE Manufactured Part; Alternative Fit 1; For Part Number F09F9F472Ca; F1Uf9F472Ca; F07F9F472Ca; F07F9F472Da; F0Uf9F472Ca, Sold individually, 4-wire, 6 Cyl 4.0L, OE Replacement Series - UpstreamManufacturer #15719
( Reviews) Questions, Answers
Bosch invented the automotive oxygen sensor and is the number one choice of vehicle manufacturers around the world. Properly functioning oxygen sensors are important when it comes to your vehicles fuel efficiency and reducing harmful exhaust emissions.
Specifications:<...
Specifications:<...
HolleyOxygen Sensor, Sold individuallyManufacturer #554-101
( Reviews) Questions, Answers
HOLLEY OXYGEN SENSOR
Expertly crafted and tested to top-grade, OE-specific standards, Holley Oxygen Sensor provides high quality performance without the high level price. Its OE-standard design provides the right fit and the right solution to your vehicle need...
AEMUniversal, Bosch LSU 4.2 Wideband UEGO "Replacement" SensorManufacturer #30-2001
( Reviews) Questions, Answers
AEM BOSCH WIDEBAND UEGO REPLACEMENT SENSOR
AEM's Oxygen Sensor uses the Bosch LSU 4.2 sensor that is accurate and durable, along with an advanced control unit that is encased entirely within the gauge head. Works with the AEM digital and analog wideband gauges, EMS's with the buil...
AEM's Oxygen Sensor uses the Bosch LSU 4.2 sensor that is accurate and durable, along with an advanced control unit that is encased entirely within the gauge head. Works with the AEM digital and analog wideband gauges, EMS's with the buil...
DensoBefore Catalytic Converter Oxygen Sensor, O.E. Quality Replacement Sensor, Sold individually, 4-wire, 6 Cyl 4.0L - Before Catalytic ConverterManufacturer #234-4611
( Reviews) Questions, Answers
DENSO (4-WIRE) OE REPLACEMENT OXYGEN SENSORS
Meticulously engineered and evaluated to exceptional standards, Denso's 4-wire OE replacement oxygen sensors will restore your ride to fresh-from-the-factory quality with their perfect fit an...
Product Questions & Answers
Q:Is this upstream or downstream?
Nef79
A:BEST ANSWERHi Neftaly, I'm glad to assist you. This is a wideband and heated type of universal oxygen sensor. This is commonly used for the front or rear location and you will need to reuse your original connector after some splicing and cutting. Please provide your complete vehicle application and engine size (year, make, model, submodel and engine size.) so we could identify the correct direct fit oxygen sensor for your car. Take advantage of our clearance sale for this part while supply lasts. I hope this helps. Happy shopping.
https://www.carparts.com/oxygen-sensor/walker-products/wkp350-34200?can=CPJE1043 Show less
Jeonino E.
5 Questions, 1 AnswerView all Q&As >
Q:Will this part replace a Nox sensor 1 for a 2018 Chevrolet Equinox LT Diesel Turbo engine? Show Less
Jen
A:BEST ANSWERHi Jennifer, thank you for reaching out. This universal product may require some modifications to replace the oxygen sensor of the 2018 Chevrolet Equinox LT with a 1.6-liter diesel engine. This part isn't specific to any vehicle. Should you decide to order this part, you can use this link to order this part at a discounted price today while supplies last: https://www.carparts.com/oxygen-sensor/bosch/bs15741?can=CPAP3648_CSQA_20241013
I hope this helps. Enjoy shopping. Show less
Aldrin P.
5 Questions, 1 AnswerView all Q&As >
Q:Will this fit down stream nissin 1982 280zx?
Ron S.
A:BEST ANSWERHi Ron, thank you for reaching out. No, this will not. Per checking, we don't have a direct-fit downstream oxygen sensor for a 1982 Nissan 280ZX. Thank you for inquiring. Have a nice day. Show less
Aldrin P.
5 Questions, 1 AnswerView all Q&As >
Helpful Automotive Resources
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)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)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 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)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)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.