Actually, they don't. They have trap oxidizers which have the same effect of a catalytic converter but is an entirely different part.
Yes, diesel engines are required to have catalytic converters, specifically diesel oxidation catalysts (DOCs), to reduce harmful emissions. These converters help to minimize pollutants such as carbon monoxide, hydrocarbons, and particulate matter. In many regions, regulations mandate the use of advanced emission control technologies, including selective catalytic reduction (SCR) systems, to meet stringent environmental standards. As a result, modern diesel engines are equipped with various emission control systems, including catalytic converters, to comply with these regulations.
No they do not.
From 1994 onwards, they were required to have a Diesel Oxidation Catalyst. From 2008 onwards (in the US), a set of emissions standards requiring highway diesel engines to have a Diesel Particulate Filter went into effect. From 2012 onwards, engines over a certain displacement required a complete aftertreatment system, with a DOC, DPF, and Selective Catalytic Reduction, which uses Diesel Exhaust Fluid (DEF).
Diesel vehicles do not have catalytic converters. Diesels sometimes have a part called a resonator or a diesel particulate filter. Since it doesn't exist, there is no legality issue.
4 cylinder engines have one, v-6 engines have 2.
Diesels as a rule don't have catalytic converters. THey might have particle filters though.
No, planes don't have catalytic converters.
Old ones. Pre 1972's, before catalytic converters.
are catalytic converters covered by a warrenty
A Ford Escape has three catalytic converters. It is known that the top two catalytic converters and their coils are costly.
None. A Diesel Oxidation Catalyst and a catalytic converter (as used on gas engines) are extremely different, as is their construction.
Only if the exhuast is vented outside.