2004 Toyota Tundra Catalytic Converter Replacement! A catalytic converter is a device that absorbs harmful exhaust gases from your engine. It contains precious metals like platinum, palladium and rhodium which help reduce vehicle emissions.
2004 Toyota Tundras have become a prime target for catalytic converter thieves due to their easy access and high ground clearance.
First Generation
The 2004 Toyota Tundra is one of the most sought-after trucks on the market. It’s known for its dependability and impressive off-road abilities.
From 2000 to 2006, Toyota Tundra models were offered with either a 3.4 L V6 or 4.7 L V8 engine option.
Catalytic converters are essential elements of your car’s exhaust system, helping reduce harmful emissions and keeping both you and the environment protected.
Unfortunately, the cost of these converters has gone up in recent years due to increases in palladium and rhodium prices.

Rhodium is used in catalytic converters to increase their durability and corrosion resistance. Unfortunately, due to rising prices for rhodium, it’s no longer cost-effective to use it on 2004 Toyota Tundra catalytic converters.
Second Generation
A high-quality 2004 Toyota tundra catalytic converter is designed to boost your pickup’s horsepower and torque while decreasing harmful emissions. When purchasing a replacement catalytic converter for your Tundra, make sure it meets your state’s emissions regulations in order to avoid getting hit with an engine light warning.
The second-generation Toyota Tundra (model years 2007-2021) features four catalytic converters – two on each passenger side and two on the driver’s side. These converters are separated by a short pipe run which has been welded together as one part; Toyota refers to this arrangement as a monolithic catalytic converter.
Unfortunately, second-generation catalytic converters are highly valuable and can be stolen, costing you a fortune to replace. This is because they contain valuable precious metals with high resale values on the black market, making them prime targets for criminals.
Third Generation
A catalytic converter is an integral component of Toyota Tundra’s exhaust system. It plays a significant role in cleaning the air by converting harmful gases like carbon monoxide and hydrocarbons into less hazardous by-products.
Thus, a malfunctioning catalytic converter will clog the exhaust system and cause serious environmental harm. That is why it is so important to replace your catalytic converter when necessary and as soon as you detect any indications of malfunction.
Replacement catalytic converters from your dealership can be expensive. On the other hand, aftermarket options offer much better value and come as direct-fit bolt-on units or weld-ons. No matter which option you select, make sure it is an OEM grade part made by the same manufacturer as your vehicle’s original equipment part.

Toyota Tundra catalytic converters are often targeted for theft, often without the owners knowing. Therefore, taking steps to safeguard these important components should be a top priority.
Fourth Generation
In 2004, Toyota released the Tundra. This work truck can haul heavy loads and be useful for construction workers; however, its catalytic converter theft has made it a prime target for criminals.
The truck features four catalytic converters, two on the front side near the engine manifold and another in the tailpipe and muffler. Each converter is made with precious metals like platinum, rhodium, and palladium to reduce exhaust emissions.
Catalytic converters can be costly to replace, with prices ranging anywhere from $4000-$7000 for an OEM conversion at your dealership.
Tundra/Sequoia owners looking to protect their catalytic converters from theft have several commercially available solutions. Most of these take the form of cages or covers which make it harder for potential thieves to take them. Some even feature tamper proof security bolts which prevent the device from being removed.