HomeEmission Control > SensorsWalker 350-33092 Oxygen Sensor - Upstream
Part #: 350-33092

Walker 350-33092 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
7 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$69.01Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Upstream
Fitment: Porsche, 928 and 911
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-33092 Oxygen Sensor for Porsche 911 and 928

The Walker 350-33092 oxygen sensor is designed specifically for Porsche 911 and 928 models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon connector for secure installation.

  • Heated oxygen sensor for accurate emissions monitoring
  • Specific fit for Porsche 911 and 928 models
  • Threaded mounting with 18.0 mm thread diameter
  • 19.21-inch wiring harness length with 3 wires of 20 gauge
  • Radiused polygon connector with male and female ends
  • Overall length of 22.76 inches for proper placement

Detailed Product Description

This Walker oxygen sensor (part number 350-33092) is engineered to meet the exact specifications required by Porsche 911 and 928 vehicles. The sensor type is heated, which allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The wiring harness length of 19.21 inches and 20 gauge wire size provide reliable electrical connectivity, while the three-wire configuration supports accurate signal transmission. The radiused polygon connector with both male and female ends ensures a secure and precise fit, minimizing the risk of connection issues. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the designated exhaust port. Overall, the sensor’s 22.76-inch length accommodates proper positioning within the exhaust system.

Walker Products Aftermarket Brand Line

Walker Products Aftermarket offers a comprehensive range of emission control components designed to meet or exceed OEM standards. This product line focuses on delivering reliable, vehicle-specific parts such as oxygen sensors that maintain emission system integrity and engine performance. The 350-33092 oxygen sensor is part of this line, providing a direct replacement solution tailored for Porsche 911 and 928 models.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for engine control units
  • Helps resolve rough idling and poor fuel economy
  • Reduces emissions-related check engine light triggers
  • Improves catalytic converter efficiency
  • Prevents drivability problems caused by faulty sensors

Installation Notes and Tips

  • Ensure the vehicle is cool before sensor removal to avoid burns
  • Use appropriate tools for the 18.0 mm threaded sensor
  • Verify connector orientation matches the radiused polygon shape
  • Inspect wiring harness for damage before installation
  • Follow vehicle-specific torque specifications for mounting

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet emission control standards and ensure durability. The 350-33092 sensor is manufactured to provide consistent performance and fitment for Porsche 911 and 928 models. Warranty coverage details are available through authorized distributors and typically include protection against defects in materials and workmanship.

BrandWalker
Part Number350-33092
PositionWalker Products Aftermarket, Upstream
Connector GenderFemale
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length22.76
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity3
Wiring Harness Length19.21

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1987Porsche9285.0LV8GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1986Porsche9285.0LV8GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1985Porsche9113.2LH6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1985Porsche9285.0LV8GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1984Porsche9113.2LH6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1984Porsche9284.7LV8GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1983Porsche9284.7LV8GASUpstreamInstall upstream oxygen sensor for optimal performance.; 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.