Expect roughly $1,000 to $2,500 for a single catalytic converter replacement using aftermarket parts, and $2,000 to $5,000 if OEM parts are required or if you need to replace both converters. Actual quotes depend on your Yukon’s year and engine, your location, and whether any sensors or other exhaust components need replacement.
In practice, the Yukon’s cost varies with the engine configuration (for example, 5.3L or 6.2L V8), how many catalytic converters are involved, and whether the work involves CARB-compliant parts in states that require them. Access to the exhaust and rust conditions can also influence labor time and price.
Cost factors that influence price
Several key factors determine the final bill for replacing catalytic converters on a Yukon. The list below outlines the main drivers you’ll encounter when getting a quote.
- Number of catalytic converters: Some Yukons have one converter per bank or more; replacing multiple units significantly increases parts and labor costs.
- Parts choice: Direct-fit aftermarket catalysts are typically cheaper than OEM (dealer) parts. In regions requiring CARB-compliant parts, prices for compliant OEM or certain aftermarket parts can be higher.
- Engine and model year: Different engines (e.g., 5.3L vs. 6.2L) require different part numbers and may affect installation difficulty and time.
- Labor rate and time: Shop hourly rates vary by location, and installation time depends on access to the exhaust, rust, and whether sensors must be replaced.
- Additional components: O2 sensors, gaskets, hangers, and potential exhaust pipe work can add to the total if replacements are needed.
- Regulatory requirements: In some states, CARB compliance or other emissions standards can influence the available parts and pricing.
Concluding: The price swing is driven by how many converters you replace, which parts you choose, and the local labor market, plus any required regulatory compliance.
What to expect during replacement
A typical replacement workflow, done at a shop, follows these general steps:
- Diagnosis and quote: Technician confirms which converters are faulty and provides a parts-and-labor estimate.
- Removal and preparation: Accessing the converter(s) may involve removing nearby components and dealing with any rusted fasteners.
- Installation: New catalytic converter(s) are installed with fresh gaskets and, if needed, new sensors.
- Sensor handling and testing: O2 sensors may be replaced or reused, and the exhaust system is checked for leaks before clearing codes and test-driving if needed.
Concluding: Plan for a several-hour job, with longer times possible if the exhaust is corroded or difficult to access; this can affect labor costs.
Cost ranges by scenario
The ranges below are broad guidelines intended to help you benchmark quotes. They assume a Yukon with one or two catalytic converters and standard installation practices.
- Aftermarket parts, labor included (single converter): $800–$2,500
- OEM parts, labor included (single converter): $1,500–$3,800
- Aftermarket parts, labor included (two converters): $1,400–$4,000
- OEM parts, labor included (two converters): $3,000–$7,000
Concluding: These figures provide a framework, but the exact price will come from a local shop after they inspect the vehicle and confirm the number of converters and the required parts.
DIY considerations and saving money
Replacing a catalytic converter is usually best left to a professional shop, especially on a full-size SUV like the Yukon. If you’re weighing options, consider these points:
- Warranty and compliance: CARB-compliant parts may be required in some states; check local regulations and warranties.
- Safety and tools: Working under a vehicle requires proper jacking, stands, and safety gear; improper work can cause injuries or leaks.
- Quality and longevity: Cheaper parts may save money upfront but could fail sooner or cause emissions issues; reputable brands and proper installation are important.
- Cost-saving approaches: Get multiple written quotes, ask about labor estimates, and inquire whether sensors or accessories are included in the price.
Concluding: For most Yukon owners, a professional replacement with a reputable shop offers better reliability and coverage under warranty; DIY is generally not recommended unless you have advanced automotive skills and equipment.
How to get an accurate quote
To obtain a precise estimate, contact several shops and provide your Yukon’s year, engine type, and whether one or both converters are involved. Request a detailed breakdown of parts, labor, emissions-related work, and any sensor replacements. If you live in a CARB-regulated state, confirm CARB-compliant parts are used.
Summary: Replacing a catalytic converter on a GMC Yukon typically costs between about $1,000 and $2,500 for a single converter with aftermarket parts, and higher if OEM parts are chosen or if two converters must be replaced. Costs vary by engine, number of converters, labor rates, and compliance requirements; obtaining multiple quotes helps ensure a fair price. Plan for the possibility of additional related repairs and always prioritize quality and regulatory compliance.
Can I still drive with a bad catalytic converter?
While your vehicle may still run with a failing catalytic converter, driving with one for an extended period is not recommended.
Is it worth fixing a catalytic converter?
Repairing or replacing a catalytic converter restores your vehicle's emissions control system to optimal functionality. This not only helps your vehicle run efficiently but also reduces harmful emissions, contributing to a cleaner environment.
Is $200 good for a catalytic converter?
Catalytic converter prices range from $200 to $2,500, with labor costs from $70 to $130 per hour. Symptoms of a failing catalytic converter include engine power loss, unusual smells, and failing emissions tests. Timely replacement is essential to reduce air pollution and prevent serious engine issues.
How much does it cost to replace a catalytic converter on a GMC Yukon?
The average cost for a GMC Yukon Catalytic Converter Replacement is between $2,764 and $2,872. Labor costs are estimated between $209 and $307 while parts are priced between $2,555 and $2,564.


