【Exact OE Replacement 234-4079】 Direct replacement for OE 234-4079, 13280, and SG1815. Precision-calibrated to match factory specifications for Jeep, Dodge, and Chrysler 4.0L I6 and 5.2L/5.9L Magnum V8 engines. 【Solve CEL & P0420 Codes】 Clears Check Engine Light (CEL) and resolves common downstream fault codes like P0420 (Catalyst Efficiency) and P0141 (Heater Circuit). Replacing your 2344079 sensor ensures your vehicle passes emissions and smog tests. 【Durable 4-Wire Heated Design】 Features a premium 4-wire heated sensor to reach operating temperature rapidly for precise monitoring. Essential for high-mileage Ram 1500, Dakota, and Cherokee XJ models to maintain optimal fuel trim. 【100% Tested for Heavy-Duty Use】 Each 234-4079 equivalent is rigorously factory-tested to withstand extreme exhaust heat and vibration. Built with corrosion-resistant stainless steel for long-lasting durability in 5.9L Cummins and 8.0L V10 truck platforms. 【1-Year Warranty & Easy DIY Install】 Includes a 1-year warranty. Designed for a plug-and-play Downstream (Post-Catalytic) swap on 2.5L, 3.9L, and 5.2L models. Please verify your original 234-4079 connector matches before purchase to ensure a first-time fit. Fitment:

Compatible with Dodge
Compatible with Viper 8.0L V10 1999 2000 2001 2002(Downstream)
Compatible with Ram 1500 5.9L V8 1997 - 2001(Downstream)
Compatible with Ram 1500 3.9L V6/5.2L V8 1997 1998 1999 2000(Downstream)
Compatible with Ram 1500 Van 3.9L V6/5.2L V8/5.9L V8 1999 2000(Downstream)
Compatible with Ram 2500 5.9L V8/8.0L V10 1997 - 2001(Downstream)
Compatible with Ram 2500 Van 5.2L V8/5.9L V8 1999 2000(Downstream)
Compatible with Ram 3500 5.9L V8/8.0L V10 1997 - 2001(Downstream)
Compatible with Ram 3500 Van 5.2L V8/5.9L V8 1999 2000(Downstream)
Compatible with Dakota 2.5L l4/3.9L V6 1997 1998 1999 2000(Downstream)
Compatible with Dakota 5.9L V8 1998 and 2000(Downstream)
Compatible with Dakota 5.2L V8 1997 1998 1999(Downstream)
Compatible with Durango 5.2L V8/5.9L V8 1998 1999 2000(Downstream)
Compatible with Durango 3.9L V6 1998 1999(Downstream)
Compatible with B1500 3.9L V6/5.2L V8 1997 1998(Downstream)
Compatible with B1500 5.9L V8 1998(Downstream)
Compatible with B2500 5.2L V8/5.9L V8 1997 1998(Downstream)
Compatible with B2500 3.9L V6 1997(Downstream)
Compatible with B3500 5.2L V8/5.9L V8 1997 1998(Downstream)

Compatible with Jeep
Compatible with Cherokee 4.0L l6 1997 - 2001(Downstream)
Compatible with Cherokee 2.5L l4 1997 1998 1999 2000(Downstream)
Compatible with Grand Cherokee 4.0L l6 1999 2000(Downstream)
Compatible with TJ 2.5L l4/4.0L l6 1997 1998 1999 2000(Downstream)
Compatible with Wrangler 2.5L l4/4.0L l6 1997 1998 1999 2000(Downstream)