HomeEmission Control > SensorsWalker 250-24382 Oxygen Sensor - Upstream
Part #: 250-24382

Walker 250-24382 Oxygen Sensor - Upstream

Walker Products OE, Upstream
22 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$87.33Free 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 OE, Upstream
Fitment: BMW, 535i, M5, 735i, 735iL, 635CSi, and 535is
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 250-24382 Oxygen Sensor

The Walker 250-24382 oxygen sensor is designed specifically for select BMW models, including the 535i, 535is, 635CSi, 735i, 735iL, and M5. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.

  • Heated oxygen sensor with 4-wire configuration
  • Specific fit for BMW 535i, 535is, 635CSi, 735i, 735iL, and M5 models
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon female connector for secure electrical connection
  • Wiring harness length of 56.42 inches and overall length of 59.96 inches
  • Wire gauge measurement of 20 for reliable signal transmission

Walker Products OE Brand Line Details

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. The 250-24382 oxygen sensor is part of this line, ensuring compatibility and performance consistent with the original sensor installed on BMW vehicles. This product line emphasizes precise fitment and durability, making it suitable for emission control system repairs.

Product Features and Specifications

This oxygen sensor features a heated sensor type that allows for faster warm-up times and improved sensor responsiveness. The 4-wire design supports both the sensor signal and heater circuit, enhancing accuracy and reliability. The radiused polygon female connector ensures a secure and corrosion-resistant connection, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system. The wiring harness length of 56.42 inches and overall length of 59.96 inches provide adequate reach for proper placement within the vehicle.

Applications and Common Issues Addressed

  • Restores accurate air-fuel ratio readings for BMW 535i, 535is, 635CSi, 735i, 735iL, and M5 models
  • Helps resolve engine performance problems related to faulty oxygen sensors
  • Reduces emissions by ensuring proper sensor operation
  • Prevents check engine light triggers caused by sensor failure
  • Improves fuel efficiency by maintaining correct combustion parameters

Installation Notes and Tips

When installing the Walker 250-24382 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Confirm the connector type matches the vehicle harness before installation. Properly route the wiring harness to prevent contact with hot exhaust components or moving parts. Torque the sensor to manufacturer specifications to ensure a secure fit and prevent exhaust leaks.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This part number 250-24382 undergoes rigorous testing to comply with OEM specifications for BMW vehicles. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term use in emission control applications.

BrandWalker
Part Number250-24382
PositionWalker Products OE, Upstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length59.96
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length56.42

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1993BMW535i3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1993BMWM53.6LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1992BMW535i3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1992BMW735i3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1992BMW735iL3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1992BMWM53.6LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1991BMW535i3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1991BMW735i3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1991BMW735iL3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1991BMWM53.6LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1990BMW535i3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1990BMW735i3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1990BMW735iL3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1989BMW535i3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1989BMW635CSi3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1989BMW735i3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1989BMW735iL3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1988BMW535i3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1988BMW535is3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1988BMW635CSi3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1988BMW735i3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1988BMW735iL3.5LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE

* 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.