HomeEmission Control > SensorsWalker 350-34295 Oxygen Sensor - Downstream
Part #: 350-34295

Walker 350-34295 Oxygen Sensor - Downstream

Walker Products Aftermarket, Downstream
9 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Downstream
Fitment: BMW, Z3
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Oxygen Sensor for BMW Z3

The Walker 350-34295 oxygen sensor is designed specifically for the BMW Z3, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

  • Wiring harness length: 22.76 inches
  • Wire gauge measurement: 20 gauge
  • Heated sensor type for faster response
  • Specific fit for BMW Z3 models
  • Four-wire configuration
  • Radiused polygon male connector shape
  • Thread diameter: 18.0 mm
  • Overall length: 26.3 inches
  • Threaded mounting type for reliable attachment

Detailed Product Description

This Walker oxygen sensor (part number 350-34295) is engineered to meet the exact specifications required by the BMW Z3. The heated sensor design allows for quicker activation and more accurate readings of the exhaust gases, which helps maintain efficient fuel combustion and reduces harmful emissions. The four-wire setup includes both the sensor signal and heater circuit, ensuring consistent operation under various driving conditions. The radiused polygon male connector provides a secure and precise electrical connection, minimizing the risk of disconnection or signal loss. With a wiring harness length of 22.76 inches and an overall length of 26.3 inches, this sensor fits seamlessly into the designated mounting location using its 18.0 mm threaded interface.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on delivering reliable emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, offering a direct replacement solution tailored for specific vehicle applications like the BMW Z3. The product line emphasizes durability and precise fitment to support emission compliance and engine efficiency.

Common Applications and Issues Addressed

  • Restores accurate oxygen sensing for proper air-fuel mixture control
  • Helps resolve rough idling and engine hesitation
  • Reduces increased emissions and failed emissions tests
  • Prevents check engine light triggers related to oxygen sensor faults
  • Improves fuel economy by ensuring correct sensor feedback

Installation Notes and Tips

Installation of the Walker 350-34295 oxygen sensor requires removal of the old sensor from the threaded mounting point on the exhaust system. Ensure the connector matches the radiused polygon male shape for proper electrical connection. Use appropriate tools to avoid damaging the 18.0 mm thread diameter. Verify wiring harness length and routing to prevent strain or interference with other components. It is recommended to check for any exhaust leaks after installation to maintain sensor accuracy.

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet emission control standards and provide reliable performance. The 350-34295 sensor is manufactured to precise specifications for the BMW Z3 application. While specific warranty details are not provided here, Walker Products Aftermarket parts typically come with a limited warranty covering defects in materials and workmanship.

BrandWalker
Part Number350-34295
PositionWalker Products Aftermarket, Downstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length26.3
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length22.76

This part fits 9 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2000BMWZ33.2LL6GASDownstreamDownstream oxygen sensor compatible with cylinders 4-6.; Walker Products Aftermarket
2000BMWZ33.2LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products Aftermarket
2000BMWZ33.2LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; Walker Products Aftermarket
1999BMWZ33.2LL6GASDownstreamDownstream oxygen sensor compatible with cylinders 4-6.; Walker Products Aftermarket
1999BMWZ33.2LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products Aftermarket
1999BMWZ33.2LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; Walker Products Aftermarket
1998BMWZ33.2LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products Aftermarket
1998BMWZ33.2LL6GASDownstreamDownstream oxygen sensor compatible with cylinders 4-6.; Walker Products Aftermarket
1998BMWZ33.2LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; 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.