HomeEmission Control > SensorsWalker 350-31026 Oxygen Sensor - Upstream
Part #: 350-31026

Walker 350-31026 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
104 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Upstream
Fitment: Hyundai, Mitsubishi, Dodge, Eagle, and Plymouth, Excel, Scoupe, Precis, Colt, Summit, Sonata, Eclipse, Van, Laser, Mirage, and Galant
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Overview of Walker 350-31026 Oxygen Sensor

The Walker 350-31026 oxygen sensor is designed for specific vehicle applications including Dodge, Hyundai, Mitsubishi, and Plymouth models. This non-heated sensor provides accurate emissions control by monitoring oxygen levels in the exhaust system, helping maintain optimal engine performance and fuel efficiency.

  • Wiring harness length: 28.07 inches
  • Wire gauge measurement: 20 gauge
  • Sensor type: Non heated
  • Specific fit for select vehicle models
  • Single wire configuration
  • Radiused polygon female connector
  • Thread diameter: 18.0 mm
  • Overall length: 31.61 inches
  • Threaded mounting type

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to exact vehicle specifications. The product line emphasizes precise fitment and quality construction to meet or exceed OEM standards, ensuring compatibility and durability for vehicles such as the Dodge Colt, Hyundai Sonata, and Mitsubishi Eclipse.

Product Description and Specifications

The Walker 350-31026 oxygen sensor features a non-heated design with a single 20-gauge wire, making it suitable for vehicles that do not require heated sensors. Its 28.07-inch wiring harness and 31.61-inch overall length provide adequate reach for installation in the exhaust system. The sensor’s radiused polygon female connector and 18.0 mm threaded mounting ensure a secure and proper fit. This sensor is engineered specifically for models including the Dodge Colt, Hyundai Sonata, Mitsubishi Eclipse, Plymouth Laser, and others, ensuring precise compatibility and performance.

Common Applications and Issues Addressed

  • Replacement for faulty or damaged oxygen sensors in Dodge, Hyundai, Mitsubishi, and Plymouth vehicles
  • Helps resolve engine performance issues related to incorrect air-fuel mixture
  • Assists in reducing emissions by providing accurate oxygen level readings
  • Prevents check engine light triggers caused by sensor failure
  • Supports fuel efficiency by maintaining proper combustion control

Installation Notes and Tips

Installation requires removal of the old oxygen sensor and threading the Walker 350-31026 sensor into the exhaust manifold or pipe. Ensure the connector matches the vehicle’s wiring harness with its radiused polygon female design. Use appropriate tools to avoid damaging the 18.0 mm threaded mounting. Verify wiring harness length and routing to prevent strain or interference. It is recommended to follow vehicle-specific service manuals for torque specifications and sensor location.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet industry standards for emission control components. The 350-31026 part number undergoes quality checks to ensure durability and reliable performance. While specific warranty details are not provided here, Walker typically offers coverage against manufacturing defects. Consult product documentation or authorized sources for warranty terms.

BrandWalker
Part Number350-31026
PositionWalker Products Aftermarket, Upstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length31.61
Sensor TypeNon Heated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity1
Wiring Harness Length28.07

This part fits 104 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersFuel TypePositionNotes
1993HyundaiExcel1.5LL4GASUpstreamNon Calif-ESV , To 07/16/93; B1S1; No Calif-ESV, al 07/16/93; Upstream; Walker Products Aftermarket
1993HyundaiExcel1.5LL4GASUpstreamNon Calif-ESV , To 07/16/93; No Calif-ESV, al 07/16/93; Upstream; B1S1; Walker Products Aftermarket
1993HyundaiExcel1.5LL4GASUpstreamNon Calif-ESV , To 07/16/93; B1S1; Upstream; Walker Products Aftermarket
1993HyundaiScoupe1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1993HyundaiScoupe1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1993HyundaiScoupe1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1993MitsubishiPrecis1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1993MitsubishiPrecis1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1993MitsubishiPrecis1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1992HyundaiExcel1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1992HyundaiExcel1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1992HyundaiExcel1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1992HyundaiScoupe1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1992HyundaiScoupe1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1992HyundaiScoupe1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1992MitsubishiPrecis1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1992MitsubishiPrecis1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1992MitsubishiPrecis1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1991HyundaiExcel1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1991HyundaiExcel1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1991HyundaiExcel1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1991HyundaiScoupe1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1991HyundaiScoupe1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1991HyundaiScoupe1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1991MitsubishiPrecis1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1991MitsubishiPrecis1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1991MitsubishiPrecis1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1990DodgeColt1.8LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1990DodgeColt1.6LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1990DodgeColtAutomatic1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1990DodgeColt1.8LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1990DodgeColt1.6LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1990DodgeColtAutomatic1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1990DodgeColt1.6LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1990DodgeColtAutomatic1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1990HyundaiExcel1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1990HyundaiExcel1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1990HyundaiExcel1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1990HyundaiSonata2.4LL4GASUpstreamNon Calif-ESV , To 7/1/90; B1S1; No Calif-ESV, al 07/01/90; Upstream; Walker Products Aftermarket
1990HyundaiSonata2.4LL4GASUpstreamNon Calif-ESV , To 7/1/90; No Calif-ESV, al 07/01/90; Upstream; B1S1; Walker Products Aftermarket
1990HyundaiSonata2.4LL4GASUpstreamNon Calif-ESV , To 7/1/90; B1S1; Upstream; Walker Products Aftermarket
1990MitsubishiEclipse1.8LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1990MitsubishiEclipse1.8LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1990MitsubishiEclipse1.8LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1990MitsubishiPrecis1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1990MitsubishiPrecis1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1990MitsubishiPrecis1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1990MitsubishiVan2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1990MitsubishiVan2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1990PlymouthLaser1.8LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1990PlymouthLaser1.8LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1990PlymouthLaser1.8LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1989DodgeColt1.8LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1989DodgeColt1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1989DodgeColt1.8LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1989DodgeColt1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1989DodgeColt1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1989HyundaiSonata2.4LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1989HyundaiSonata2.4LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1989HyundaiSonata2.4LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1989MitsubishiMirage1.5LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
1989MitsubishiMirage1.5LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
1989MitsubishiMirage1.5LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
1989MitsubishiVan2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1989MitsubishiVan2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1988DodgeColt2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1988DodgeColt1.6LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1988DodgeColt1.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1988DodgeColt2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1988DodgeColt1.6LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1988DodgeColt1.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1988MitsubishiMirage1.6LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1988MitsubishiMirage1.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1988MitsubishiMirage1.6LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1988MitsubishiMirage1.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1988MitsubishiVan2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1988MitsubishiVan2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1987DodgeColt2.0LL4GASUpstreamFrom 10/86; B1S1; Del 10/86; Upstream; Walker Products Aftermarket
1987DodgeColt1.6LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1987DodgeColt1.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1987DodgeColt2.0LL4GASUpstreamFrom 10/86; Del 10/86; Upstream; B1S1; Walker Products Aftermarket
1987DodgeColt1.6LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1987DodgeColt1.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1987DodgeColt2.0LL4GASUpstreamFrom 10/86; B1S1; Upstream; Walker Products Aftermarket
1987HyundaiExcelManual1.5LL4GASUpstreamTo 5/87; B1S1; Al 5/87; Upstream; Walker Products Aftermarket
1987HyundaiExcelManual1.5LL4GASUpstreamTo 5/87; Al 5/87; Upstream; B1S1; Walker Products Aftermarket
1987HyundaiExcelManual1.5LL4GASUpstreamTo 5/87; B1S1; Upstream; Walker Products Aftermarket
1987MitsubishiGalant2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1987MitsubishiGalant2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1987MitsubishiMirage1.6LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1987MitsubishiMirage1.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1987MitsubishiMirage1.6LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1987MitsubishiMirage1.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1987MitsubishiPrecis1.5LL4GASUpstreamTo 5/87; B1S1; Al 5/87; Upstream; Walker Products Aftermarket
1987MitsubishiPrecis1.5LL4GASUpstreamTo 5/87; Al 5/87; Upstream; B1S1; Walker Products Aftermarket
1987MitsubishiPrecis1.5LL4GASUpstreamTo 5/87; B1S1; Upstream; Walker Products Aftermarket
1987MitsubishiVan2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1987MitsubishiVan2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1986HyundaiExcel1.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1986HyundaiExcel1.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1986MitsubishiGalant2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1986MitsubishiGalant2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1985MitsubishiGalant2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1985MitsubishiGalant2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.