HolleyEFI Header View CartHolleyTVYouTubeTwitterFacebook
What item is right for you?
Ask our experts:


Suggested Retail: $172.95
Your Price: $154.95
FREE Shipping on orders over $100*
Buy Now

Commander 950 Wide Band O2 Upgrade Kit

Commander 950 Wideband O2 gauge

PART #: 534-200

UPC #:

Want to closely monitor Air/Fuel ratios with your Commander 950? The Holley Commander 950 Wide Band O2 gauge features a 3–digit numeric display along with a 40 segment bar graph. With the ultra–high intensity light emitting diodes you will be able to see your Air/Fuel ratio even under direct sunlight. The P/N 534–200 is designed to operate in street or race environments and will withstand heat, dirt, and vibration all while Fitting in a standard 2–1/16” gauge pod.
Commander 950 Wide Band O2 gauge

Installation Notes
3rd Generation Controllers started being produced in mid-2006. It has a 3 wire weather pack connector for the C950 connection, a black 2 wire connector for the gauge, an orange 2 wire connector for a communications connection (not used at this time), and the 8 pin connector for the O2 sensor. Previous versions do NOT have the 2 wire orange connector.

  • Features a 3-digit numeric display and 40 segment multicolor bar graph for a quick read
  • Ultra-high intensity light emitting diodes for easy viewing even in direct sunlight
  • Standard 2-1/16” diameter for ease of mounting in a standard gauge pod
  • Designed to operate over a temperature range of -4 to 185° F
  • Built for race environments to withstand heat, dirt, and vibration
  • Connects to vehicle light switch to dim the gauge during night time viewing
  • Will only work with 3rd generation wide band controllers - part numbers 534-188 and 534-197

Technical Information

Shipping Dimensions
L 6.750 in. x W 4.250 in. x H 3.250 in.
Weight 1.500 lb.
*Free Shipping & Handling only offered to the continental US on orders over $100.

Holley | Hooker Headers | Earl's | Weiand | NOS | Flowtech
Copyright Holley Performance Products, Inc.
NASCAR© and NASCAR Performance© are registered trademarks of the National Association for Stock Car Auto Racing, Inc.
Web Index | Terms Of Use | Vendor | Corporate | Search