Photo 1
Photo 2
Photo 3
Photo 4
Photo 5
Photo 6

Holley Oxygen Sensor 554-155; Direct Fit Thread In Wideband O2

$169.95

Part #: 554-155

Brand: Holley

UPC: 090127006016

Estimated Ship Date: Today

Specifications Videos Recommended

This item ships free with qualifying orders of $150 or more.
See our shipping policy for more details.

Details

  • Oxygen Sensor

Product Description

Replacement Bosch wideband oxygen (O2) sensor for Sniper EFI and Terminator X systems.

Specifications

Universal or Direct-Fit:
Direct Fit
Wideband or Narrowband:
Wideband
Sensor Type:
O2
Number of Wires:
6 Wire
Mounting Style:
Thread In
Includes Sensor Bung:
No
Connector Style:
6 Pin Rectangle
Includes Mounting Bracket:
No
Notes:
Replacement for Sniper EFI or Terminator X systems
Quantity:
Sold As Each

Videos

Recommended

Sniper Fuel Injection System 550-511; 650 HP Self Tuning 650 HP Throttle Body 800 CFM Black Ceramic Aluminum
Sniper Fuel Injection System 550-511; 650 HP Self Tuning 650 HP Throttle Body 800 CFM Black Ceramic Aluminum

Sniper Fuel Injection System 550-511; 650 HP Self Tuning 650 HP Throttle Body 800 CFM Black Ceramic Aluminum

SNI550-511

$1,239.22

Estimated Ship Date: Discontinued

Sniper Fuel Injection System 550-516; 650 HP Self Tuning Throttle Body 800 CFM Classic Gold Aluminum
Sniper Fuel Injection System 550-516; 650 HP Self Tuning Throttle Body 800 CFM Classic Gold Aluminum

Sniper Fuel Injection System 550-516; 650 HP Self Tuning Throttle Body 800 CFM Classic Gold Aluminum

SNI550-516

$914.36

Estimated Ship Date: Discontinued

Sniper Fuel Injection System 550-510; 650 HP Self Tuning 650 HP Throttle Body 800 CFM Shiny Aluminum
Sniper Fuel Injection System 550-510; 650 HP Self Tuning 650 HP Throttle Body 800 CFM Shiny Aluminum

Sniper Fuel Injection System 550-510; 650 HP Self Tuning 650 HP Throttle Body 800 CFM Shiny Aluminum

SNI550-510

$1,239.22

Estimated Ship Date: Discontinued

Sniper Fuel Injection System 550-849; Sniper EFI 2300 350 HP Throttle Body 580 CFM Shiny Aluminum
Sniper Fuel Injection System 550-849; Sniper EFI 2300 350 HP Throttle Body 580 CFM Shiny Aluminum

Sniper Fuel Injection System 550-849; Sniper EFI 2300 350 HP Throttle Body 580 CFM Shiny Aluminum

SNI550-849

$1,309.95

Estimated Ship Date: 8/2/2026 (From manufacturer)

Sniper Fuel Injection System 550-850; Sniper EFI 2300 Self Tuning 350 HP Throttle Body 580 CFM Black Ceramic Aluminum
Sniper Fuel Injection System 550-850; Sniper EFI 2300 Self Tuning 350 HP Throttle Body 580 CFM Black Ceramic Aluminum

Sniper Fuel Injection System 550-850; Sniper EFI 2300 Self Tuning 350 HP Throttle Body 580 CFM Black Ceramic Aluminum

SNI550-850

$1,359.95

Estimated Ship Date: 8/2/2026 (From manufacturer)