Fitments: Most 4.9 LSU Wideband Controller Gauge AEM 30-4110 Wideband UEGO Gauge AEM 30-0300 Wideband UEGO AFR Gauge AEM 30-0310 Wideband UEGO AFR Controller Replaces OE#: 17025, 0258017025, 304110, 300300, 300310 O2 Sensor Installation Steps ①Disconnect the battery Prevent accidental short circuits. ②Locate the old sensor Usually found on the exhaust manifold or pipe. ③Unplug the sensor connector Carefully disconnect the wiring harness. ④Remove the old sensor Use an O2 sensor socket or wrench to unscrew. ⑤Clean the sensor port Remove any rust or debris from the threaded hole. ⑥Apply anti-seize compound (if not pre-applied) On the threads only, avoid the sensor tip. ⑦Install the new sensor Thread it in by hand, then tighten with a wrench (do not overtighten). ⑧Reconnect the sensor wiring Plug the harness back in securely. ⑨Reconnect the battery Restore power to the system. ⑩Start the engine and check for codes Quality Guarantee: 12-Month Warranty At Gledewen, we take pride in the quality of our products and in your satisfaction. If you have any problems, do not hesitate to contact us.

• 【REPLACE OE NUMBER】17025, 0258017025, 304110, 300300, 300310. A lot of buyers brought the wrong A/F gauge sensor because they don't pay attention to the plug and the length of the sensor. Please check these 2 features before purchase
• 【12-MONTH WARRANTY】If the wide band lambda sensor fails, stops working or any other problems, you can contact us through amazon message to apply the service of carefree REPLACEMENT or REFUND

Specifications

Common questions