U.S. Toll-Free Call Center   Hours
Espanol: 866-401-3393

Highest Ratings

Quality: We've got the awards to prove it!

We've won the Bizrate Circle of Excellence award,
7 years in a row. Rated outstanding for quality, satisfaction, service, and on time delivery. 1A Auto selects the highest quality parts from the best manufacturers. Check our excellent ratings.
Fastest Shipping
No-Hassle Returns
USA Support Techs
Best Value
Our Guarantee

Customer Feedback

You played a big part in the r...
Chevrolet Chevelle
Gary, Natchez, MS

Click here to try out our new site!
Home > BMW > 328iS > Oxygen Sensors > 1996-1999 BMW 328iS Upstream & Downstream O2 Oxygen Sensor for L6 2.8L Pair (Walker Products)

  Send to a friend    
  Product views

1996 - 1999 BMW 328iS Upstream & Downstream O2 Oxygen Sensor for L6 2.8L Pair (Walker Products)


In Stock (Ships same day for orders placed by 3 PM ET)

List Price:$259.20
Our Price: $159.95
 (You Save $99.25)

Free Ground Shipping
Part Number: WKEEK00002

Welcome Message from 1A Auto

Walker Products Oxygen Sensor Pair: 250-24810

Walker Products, an ISO 9001-2008 / TS16949 certified company, specializes in the manufacturing and distribution of Fuel System Components and Automotive Engine Management products. Walker is committed to meeting or exceeding OEM or equivalent standards and specifications. This effort is backed by Walker's own manufacturing, product management and engineering expertise.


  • Comes as a PAIR
    • Includes both Uptream & Downstream sensors
  • Brand New Walker Oxygen Sensors
  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (39.0 Inches)
  • 4 wire configuration
  • Replaces dealer part numbers: 11781427884, 11 78 1 427 884, 11781437943, 11 78 1 437 943
  • Built and tested to strict quality control standards

Note: For clarification purposes:

  • Upstream location is between the catalytic converter and the engine
  • Downstream location is between the catalytic converter and the tailpipe

If you have bad O2 sensors causing your vehicle to run poorly or fail an emission test then these are the parts for you.

1 Year Warranty

This item is backed by a 1 Year Manufacturers Warranty. In the event this item should fail during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

Part Brand: Walker Products # 250-24810

See 1A Auto on Facebook Watch our auto parts installation videos on Youtube Nutts and Bolts Blog Google Plus
Free Shipping