Front Rear Upstream Downstream Oxygen Sensor 99-02 Silverado Sierra 4.3L W 4pc

This item is a brand new Walker Brand Oxygen Sensor. It will fit the following makes and models:

• 1999-2002 Chevrolet Silverado 1500 4.3L Vin Code W
• 1999-2002 GMC Sierra 4.3L Vin Code W
• The 8th Digit of your Vin Must be W

Kit Includes 4pc

• 2x Part# 350-34128 250-24012 Upstream Oxygen Sensor
• 2x Part# 350-34525 250-24018 Downstream Oxygen Sensor

Condition: New

• Brand: Mac Auto Parts
• Manufacturer Part Number: 142187
• Interchange Part Number: 250-24012, 250-24018
• Other Part Number: 234-4018, 13474, 21539, SG272, 213-1331, AP4-129
• Surface Finish: new
• Warranty: Y
• Placement on Vehicle: Left, Right, Front, Rear