LSU 4.9 WideBand O2 Sensor for AEM UEGO Controller

Gledewen ★ 3.6/5 · ItemOracle Score Budget

$40 USD
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LSU 4.9 Lambda WideBand O2 Oxygen Sensor | for AEM 30-4110 30-0300 30-0310 - X Series AFR Inline Controller - UEGO A/F Ratio Wideband 02 Gauge | Replace# 17025, 0258017025

Wideband oxygen sensor with durable stainless steel body for accurate A/F monitoring. Provides signals proportional to exhaust oxygen for engine efficiency and performance; mixed feedback on longevity and accuracy from customers

Highlights

  • wideband O2 with proportional signal
  • rugged stainless steel body
  • controller compatibility

Pros

  • high temperature resistant material
  • double laser-welded stainless steel body
  • compatible with multiple AEM wideband controllers
  • 12-month warranty
  • easy fitment and replacement value

Cons

  • mixed feedback on accuracy
  • varying lifespan reported by customers
  • some units may have installation or plug-length issues

Best For

  • engine tuning with AEM wideband controllers
  • in-vehicle AFR monitoring
  • custom exhaust setups
  • maintenance-friendly sensor replacement
  • performance diagnostics

Features

  • Wideband O2 sensor provides a signal proportional to exhaust oxygen levels for continuous monitoring and efficient operation
  • Built with high temperature resistant materials for quicker sensor response and durability
  • Compatible with controllers matching 4.9 LSU units and OE numbers 17025, 0258017025, 304110, 300300, 300310
  • Includes guidance to verify plug type and sensor length before purchase to reduce mismatch
  • 12-month warranty offered for sensor failures or related issues

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