How many catalytic converters does a 4Runner have?
The typical answer is that most Toyota 4Runner models with a V6 engine have two catalytic converters, arranged in series along the exhaust path. While two is the standard in most North American models, the exact count can vary by engine type, generation, and market.
What determines the count
Engine design, emissions regulations, and model year influence how many catalytic converters a 4Runner uses. In the common V6 configurations, manufacturers deploy two catalysts to meet standards and to optimize exhaust flow and warm-up. Some older four-cylinder variants or non-U.S. market versions have used a single catalytic converter, but that is less common in today’s lineup.
To confirm for a specific vehicle, refer to the factory service manual or inspect the exhaust system for the number of catalytic housing units and their placement.
The following outlines typical patterns you’ll see across major 4Runner generations and engine types. It’s a quick reference rather than a guarantee for every unit.
- Two catalytic converters: a close-coupled/pre-cat near the engine and a downstream/main catalytic converter further back along the exhaust path.
- Single catalytic converter in some older four-cylinder models or certain non-U.S. market configurations; these are uncommon among contemporary North American 4Runners.
- Occasional variations in aftermarket or specialty emissions packages may alter the count, but the standard factory setup for most U.S.-market V6 models is two.
In practice, owners of standard US-market, V6-equipped 4Runners should expect two catalytic converters in the factory exhaust system.
How to verify on your vehicle
Lay underneath the vehicle or refer to your VIN-specific parts diagram to identify the number and placement of catalytic converters. Look for two distinct cat housings in the exhaust line and note sensor placements—the presence of multiple upstream/downstream O2 sensors often corresponds to a dual-cat layout.
Summary
The typical 4Runner has two catalytic converters, arranged in series on the exhaust path. There are exceptions based on engine, generation, and market, but two-cat configurations are standard for most U.S.-market models.
How much is a catalytic converter for a Toyota 4Runner?
between $2,597 and $2,654
The average cost for a Toyota 4Runner Catalytic Converter Replacement is between $2,597 and $2,654.
Are 4runners targeted for catalytic converter theft?
Unfortunately the Tacoma and 4Runner have become highly targeted vehicles for Catalytic Converter theft, so we've got some solid shields that include anti theft hardware and make it such a nightmare to get to your cats they're gonna move on to the next easy target!
How much are Toyota catalytic converters worth scrap per?
The actual value you get for your Toyota catalytic converter depends on your car model and the size and weight of the catalytic converter, and the price can range from $75 to $700 when sold as scrap.
How many catalytic converters are on a Toyota 4Runner?
Generally, most cars have one to two catalytic converters. However, larger vehicles or those with dual exhaust systems might have more. Understanding this can help you better maintain your vehicle's performance and ensure compliance with emission standards.
