How many catalytic converters does a Toyota Highlander have?
Most Toyota Highlander models have two catalytic converters.
In practical terms, this means the exhaust system typically includes a primary catalytic converter near the engine and a secondary converter downstream along the exhaust path. The dual-cat design is standard across current gas-powered and Hybrid Highlanders in many markets, though exact configuration can vary by engine option and regional specifications.
Exhaust layout and converter count
The following describes the typical dual-cat layout and where to find each converter in a Highlander.
- Primary catalytic converter: located close to the engine, typically connected to the exhaust manifold.
- Secondary catalytic converter: located downstream, farther back under the vehicle along the exhaust path.
Bottom line: the standard Highlander configuration is two catalytic converters. Variations by year, engine option, or market are possible, but two catalysts remain the typical setup.
Engine options and regional differences
In the United States and many other markets, both gasoline-powered and Hybrid Highlanders commonly employ a dual-cat exhaust system. Some regional or older model variations could differ, but the two-converter arrangement is the prevailing standard for modern Highlanders.
What this means for owners and buyers
Knowing there are two catalytic converters has implications for maintenance, replacement costs, and emissions compliance. If a warning light or diagnostic trouble code points to catalyst efficiency or related components, expect to inspect both converters as part of a thorough check.
Summary
Two catalytic converters are typical for Toyota Highlander models across current gasoline and Hybrid configurations in most markets. While there can be regional or year-to-year variations, the dual-cat design is the standard arrangement.
Are Toyota Highlanders targets for catalytic converter theft?
Protect your Toyota Highlander Hybrid (2020-2026) from catalytic converter theft with our Cat Shield. With its popularity and accessible undercarriage, the Highlander Hybrid can be a target for thieves.
Where is the catalytic converter located on a Toyota Highlander?
The location of the catalytic converter on a Toyota Highlander depends on the model year. Older models have a converter located underneath the vehicle in the exhaust system between the engine and the muffler. However, newer models, especially hybrids, have catalytic converters mounted up in the engine bay (Bank 1) close to the engine, making them much harder to steal, say Reddit users.
This video shows the catalytic converter location on a Toyota Highlander: 29sThe Random DaveYouTube · Sep 11, 2020
Older models
- Location: Underneath the vehicle in the exhaust pipe.
- Appearance: A metal canister with heat shields, located between the exhaust manifold and the muffler.
Newer models (including hybrids)
- Location: Up in the engine bay, closer to the firewall, as part of the exhaust manifold.
- Appearance: Integrated into the pipe that connects to the engine's exhaust manifold.
How much does it cost to replace a catalytic converter on a Toyota Highlander?
The average cost for a Toyota Highlander Catalytic Converter Replacement is between $1,809 and $2,127. Labor costs are estimated between $474 and $696 while parts are priced between $1,335 and $1,431.
How many catalytic converters does a Highlander have?
One each side built into the exhaust manifolds and another one underneath.
