HomeEmission Control > SensorsWalker 350-34624 Oxygen Sensor - Upstream
Part #: 350-34624

Walker 350-34624 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
4 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Upstream
Fitment: BMW, 525i and 525iT
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-34624 Oxygen Sensor for BMW 525i and 525iT

The Walker 350-34624 oxygen sensor is designed specifically for BMW 525i and 525iT models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated sensor type for faster response times
  • Specific fit for BMW 525i and 525iT models
  • Threaded mounting type with 18.0 mm thread diameter
  • 53.66 inches wiring harness length with 4 wires of 20 gauge
  • Female connector with radiused polygon shape for secure connection
  • Overall length of 57.2 inches for proper installation

Detailed Features and Specifications

This Walker oxygen sensor (part number 350-34624) features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor is designed with a 4-wire configuration using 20 gauge wires, providing reliable signal transmission. Its 53.66-inch wiring harness length and 57.2-inch overall length accommodate the specific routing requirements of BMW 525i and 525iT exhaust systems. The threaded mounting type with an 18.0 mm diameter ensures a secure fit, while the female connector with a radiused polygon shape guarantees proper electrical connection.

Walker Products Aftermarket Line

The Walker Products Aftermarket line offers a range of emission control components engineered to meet or exceed OEM specifications. This oxygen sensor is part of that line, providing a direct replacement solution tailored for specific vehicle applications like the BMW 525i and 525iT. The focus on precise fitment and durable construction supports consistent engine management and emissions compliance.

Common Applications and Problem Resolution

  • Restores accurate oxygen sensing for proper air-fuel mixture control
  • Helps resolve check engine light issues related to oxygen sensor faults
  • Improves fuel economy by ensuring efficient combustion
  • Reduces harmful emissions by maintaining proper sensor function
  • Prevents engine performance problems caused by faulty sensors

Installation Notes and Tips

When installing the Walker 350-34624 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer. Verify the wiring harness length and connector type match the original sensor to avoid electrical issues. Proper torque specifications should be followed to prevent damage to the sensor or exhaust components.

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet emission control standards and durability requirements. The 350-34624 part number is manufactured to provide consistent performance in BMW 525i and 525iT vehicles. Warranty coverage details are available through Walker Products Aftermarket and typically include protection against defects in materials and workmanship.

BrandWalker
Part Number350-34624
PositionWalker Products Aftermarket, Upstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length57.2
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length53.66

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1995BMW525i2.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1994BMW525i2.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1993BMW525i2.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1993BMW525iT2.5LL6GASUpstreamInstall 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.