{"product_id":"catalytic-converter-for-mazda-b4000-1998-2000-4-0l-rear","title":"Catalytic Converter for Mazda B4000 (1998-2000) 4.0L Rear","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Rear Catalytic Converter for 1998-2000 Mazda B4000 (PN96)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The rear catalytic converter treats secondary exhaust gases on the 1998-2000 Mazda B4000 to eliminate P0420\/P0430 diagnostic trouble codes, restore factory backpressure, and ensure clean exhaust emissions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Mazda B4000 Catalyst Degradation\u003c\/h3\u003e\n\u003cp\u003eWith age and extended duty cycles, the original rear catalytic converter on the \u003cstrong\u003ePN96\u003c\/strong\u003e platform suffers from thermal fatigue, washcoat breakdown, and structural sintering of the internal brick. Unburned hydrocarbons and oil vapor from the pushrod \u003cstrong\u003eCologne 4.0L OHV\u003c\/strong\u003e V6 coat the precious metal washcoat, leading to thermal shock, substrate fracture, or heavy carbon fouling. This failure results in elevated tailpipe emissions, increased exhaust backpressure, downstream flow choking, and persistent catalyst efficiency check engine lights.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-fit replacement rear converter is engineered with a heavy-duty stainless steel outer shell designed to withstand underbody moisture, road salt, and harsh thermal cycling. Internally, a high-porosity ceramic honeycomb substrate loaded with an engineered formulation of platinum, palladium, and rhodium maximizes surface contact area to efficiently convert NOx, CO, and HC. Computer-controlled mandrel-formed inlets and precision OE-style flanged connections match original mounting locations, preventing common exhaust leaks, restoring clean scavenging, and directly replacing OE references \u003cstrong\u003eFE53316\u003c\/strong\u003e, \u003cstrong\u003e23541\u003c\/strong\u003e, and \u003cstrong\u003e53316\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 direct-fit rear catalytic converter\u003c\/li\u003e\n  \u003cli\u003eInstallation accessories supplied with the converter\u003c\/li\u003e\n\u003c\/ul\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: solid font-size: min-width:\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;\"\u003e1998-2000 Mazda B4000\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;\"\u003e4.0L Cologne OHV V6 \/ PN96\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;\"\u003e160 hp \/ 225 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;\"\u003eFE53316, 23541, 53316\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\u003e1998 Mazda B4000 4.0L V6 (Rear Position)\u003c\/li\u003e\n  \u003cli\u003e1999 Mazda B4000 4.0L V6 (Rear Position)\u003c\/li\u003e\n  \u003cli\u003e2000 Mazda B4000 4.0L V6 (Rear Position)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the PN96 B4000?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1998-2000 Mazda B4000 equipped with the \u003cstrong\u003eCologne 4.0L OHV\u003c\/strong\u003e engine in the rear exhaust position. \u003cstrong\u003eNote: This unit is 46-state legal and is NOT certified or legal for sale or use in California, New York, Colorado, or Maine emissions applications.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eIs professional welding required to install this rear converter?\u003c\/h4\u003e\n\u003cp\u003eNo, this unit features a direct-fit bolt-on design matching original flange patterns, though professional installation is recommended to guarantee a leak-free seal.\u003c\/p\u003e\n\n\u003ch3\u003eThe Mazda Truck Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered for workhorse reliability, this converter withstands high-exhaust-temperature towing demands and rough underbody trail abuse, preserving working torque delivery and keeping your utility truck fully compliant.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67563020714232,"sku":"DS-ESM74B4FU","price":137.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-mazda-b4000-1998-2000-4-0l-rear-1.jpg?v=1790999342","url":"https:\/\/performancechiptuning.com\/de\/products\/catalytic-converter-for-mazda-b4000-1998-2000-4-0l-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}