{"product_id":"catalytic-converter-for-jeep-liberty-2002-2003-3-7l-front-left-right","title":"Catalytic Converter for Jeep Liberty (2002-2003) 3.7L Front Left \u0026 Right","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Front Left \u0026amp; Right Catalytic Converter Set for 2002-2003 Jeep Liberty (KJ)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Front Left \u0026amp; Right Catalytic Converter Set replaces deteriorated factory pre-cats on the 2002-2003 Liberty to restore factory exhaust velocity, eliminate catalyst efficiency trouble codes, and ensure reliable emissions compliance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Jeep Liberty Catalyst Degradation \u0026amp; Restriction\u003c\/h3\u003e\n\u003cp\u003eOn early \u003cstrong\u003eKJ\u003c\/strong\u003e platform models powered by the \u003cstrong\u003ePowerTech 3.7L V6\u003c\/strong\u003e, the factory close-coupled front catalytic converters operate under extreme thermal cycling and intense vibrational stress. Over time, continuous exposure to unburned hydrocarbons and thermal fatigue leads to internal ceramic honeycomb degradation, washcoat sintering, and substrate fracturing. This deterioration triggers persistent P0420 and P0430 diagnostic trouble codes, elevates exhaust backpressure, chokes cylinder scavenging, and causes sluggish acceleration under heavy load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis front left and right catalytic converter pair is manufactured to factory direct-fit geometry, dropping directly into the OEM exhaust runner locations without requiring cutting or custom welding. Constructed with high-grade, corrosion-resistant stainless steel housings and thick, precision-machined connection flanges, this assembly prevents thermal warpage and exhaust leaks. Internally, high-porosity ceramic substrates coated with balanced precious-metal washcoats ensure optimal catalytic conversion efficiency, lower backpressure, and smooth exhaust gas throughput. Precision-welded bung locations accept factory upstream and downstream oxygen sensors to maintain precise closed-loop fueling control.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2002-2003 Jeep Liberty\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003ePowerTech 3.7L V6 \/ KJ\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e210 hp \/ 235 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e16118, 16119\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2002 Jeep Liberty Sport 3.7L V6 (KJ Chassis)\u003c\/li\u003e\n  \u003cli\u003e2002 Jeep Liberty Limited 3.7L V6 (KJ Chassis)\u003c\/li\u003e\n  \u003cli\u003e2003 Jeep Liberty Sport 3.7L V6 (KJ Chassis)\u003c\/li\u003e\n  \u003cli\u003e2003 Jeep Liberty Limited 3.7L V6 (KJ Chassis)\u003c\/li\u003e\n  \u003cli\u003e2003 Jeep Liberty Renegade 3.7L V6 (KJ Chassis)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the KJ Liberty?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2002-2003 Jeep Liberty equipped with the PowerTech 3.7L V6 engine.\u003c\/p\u003e\n\n\u003ch4\u003eIs this catalytic converter assembly legal in all 50 states?\u003c\/h4\u003e\n\u003cp\u003eThis direct-fit assembly is 46-state EPA compliant and cannot be sold, shipped, or operated in California, New York, Colorado, or Maine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Jeep Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle severe trail washboards, sustained rocky climbs, and heavy utility towing, this stainless steel catalytic converter assembly delivers dependable structural integrity and leak-free performance under tough off-road conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67537795645688,"sku":"DS-ELN4PLIQM","price":116.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-jeep-liberty-2002-2003-3-7l-front-left-right-1.jpg?v=1790617576","url":"https:\/\/performancechiptuning.com\/es\/products\/catalytic-converter-for-jeep-liberty-2002-2003-3-7l-front-left-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}