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Description
Holley Sniper EFI System Replacement LSU4.9 Bosch Wideband O2 Sensor # HO554-155Holley Sniper EFI System Replacement LSU4. 9 Bosch Wideband O2 Sensor # HO554 155 Oxygen Sensors, Holley EFI, Replacement, O2 Sensor, Bosch LSU Style, 3 wire, Thread in, Wire Harness, for Sniper EFI or Terminator X Systems, Each Number of Wires: 3 Mounting Style: Thread in Oxygen Sensor Bung Included: No Wiring Harness Included: Yes Quantity: Sold individually. Notes: Sensor is a replacement Bosch LSU 4. 9 oxygen sensor for the Sniper EFI or
Holley Sniper EFI System Replacement LSU4.9 Bosch Wideband O2 Sensor # HO554-155Oxygen Sensors, Holley EFI, Replacement, O2 Sensor, Bosch LSU Style, 3-wire, Thread-in, Wire Harness, for Sniper EFI or Terminator X Systems, Each
Number of Wires:
3
Mounting Style:
Thread-in
Oxygen Sensor Bung Included:
No
Wiring Harness Included:
Yes
Quantity:
Sold individually.
Notes:
Sensor is a replacement Bosch LSU 4.9 oxygen sensor for the Sniper EFI or Terminator X systems.
Holley Sniper EFI Oxygen Sensors
Holley Sniper EFI oxygen sensors are the best replacements for your system. When you need to service your Sniper EFI throttle body, Holley's list of parts include these O2 sensors to maintain a proper reading of oxygen levels in the exhaust. These replacement Bosch wideband sensors feature anti-seize pre-applied to sensor threads.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.8 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Can’t go wrong with k&n
Size: One Size, Style: Select
Easy to install, works as it should.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 8, 2025
★★★★★ 5
Fits a 3.6 v6 Ram 1500 classic
Size: One Size, Style: Select
Good for my truck
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Reviewed in the United States on February 16, 2026
★★★★★ 4
Excellent filter. I recommend it
Size: One Size, Style: Select
Arrived on time as promised. I was able to install it easily on my Jeep Cherokee with 3.2L engine. Good instructions and the part seems to be of good quality. Four Stars only as I have just installed it. Filters are passive components, usually can't tell of their long term quality or reliability unless they leak or cause immediate problems. I recommend this part.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Perfect fit
Size: One Size, Style: Select
Been using these for years and always hold up well.
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Reviewed in the United States on March 9, 2026
★★★★★ 5
2016 Acura Air Filter
Air filter for my 2016 Acura RDX fit great, installed it myself in one minute. Arrived at my house on time and in good condition, driver very courteous and respectful. Thank you very much Rick F.
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Reviewed in the United States on February 22, 2026