Holley Tax Return Season Sale Going On Now--Ends February 29th!
No coupon code required--all discounts are already applied.
10% off on many items, including Sniper and Terminator X EFI Systems,
many HyperSpark distributors, MSD Superconductor Spark Plug Wires,
as well as Holley EFI and Terminator X Fuel Injectors!
-19% Wideband O2 Sensor, NTK

Replacement NTK Wideband Oxygen Sensor for 2nd Gen C950 or Holley. Replaces Part # 534-194

This Video Shows Ideal O2 Sensor Placement!

Fitting18mm x 1.5mm
Harness Pigtail IncludedNo
TypeAir-Fuel Ratio
ApplicationPlug-And-Play Compatible with All Holley ECU's and Holley Wideband O2 Gauge Kit
Emission Code3
OEM ReplacementNo
Unit of SaleEach

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Wideband O2 Sensor, NTK

  • Views: 20411
  • Brand: Holley EFI
  • Product Code: 554-100
  • Availability: In Stock
  • $377.00
  • $305.06