On a Buick Enclave, replacing a catalytic converter generally costs between $1,000 and $3,000 for one converter, and $2,000 to $4,000 if both converters are needed.
Replacing catalytic converters on the Buick Enclave involves more than just the part itself. The Enclave’s exhaust system can use two catalytic converters (one near the engine and another further back), and prices are shaped by the part choice (aftermarket versus OEM), labor rates, and the vehicle’s year and condition. This article outlines the main cost drivers, typical price ranges, and practical tips for getting accurate quotes.
What affects the price
Prices for catalytic converter replacement vary widely. The following factors commonly influence the final bill:
- Number of converters that must be replaced (one vs. both).
- Part quality and source (aftermarket/direct-fit vs. OEM/GM parts; high-flow or specialty catalysts cost more).
- Labor time and regional labor rates (urban shops and dealerships typically charge more).
- Vehicle year, condition, and accessibility (rusty fasteners or difficult access can extend labor time).
- Additional work that may be required (oxygen sensors, gaskets, clamps, or wiring issues).
- Shop type and warranty options (dealerships often charge more but may offer longer parts/labor warranties).
In practice, getting a written, itemized estimate from several shops is the best way to understand the exact driver costs for your Buick Enclave.
Estimated price ranges
The following ranges reflect common market prices in the United States as of 2026. They assume standard direct-fit converters and typical labor conditions. Your actual price may vary.
- Single catalytic converter replacement (aftermarket parts): $600–$1,200 total
- Single catalytic converter replacement (OEM/GM parts): $1,000–$2,000 total
- Two catalytic converters replacement (both, aftermarket parts): $1,200–$2,800 total
- Two catalytic converters replacement (both, OEM/GM parts): $2,000–$4,000 total
Concluding: While part and labor costs can vary, these ranges provide a realistic sense of what Buick Enclave owners typically encounter. OEM parts and dealership service tend to be toward the higher end, while aftermarket parts paired with independent shops can reduce the total cost.
What to do to get a fair price
Before committing to a repair, take these practical steps to ensure you’re getting a fair price and a reliable fix:
- Obtain multiple written quotes from localIndependent shops and at least one dealership.
- Ask for a breakdown that separates parts, labor, and any sensor or miscellaneous fees.
- Clarify whether the quote uses OEM GM parts or aftermarket equivalents, and whether a warranty covers parts and labor.
- Consider the long-term value: a higher upfront cost with a reputable OEM part and solid warranty may save money later.
Note: Avoid unusually low bids, as they can indicate counterfeit parts or insufficient warranties. Ensure the shop performs an emissions-related inspection if required by your state.
Summary
The Buick Enclave’s catalytic converter replacement cost depends on how many converters need to be replaced, the choice between OEM and aftermarket parts, and local labor rates. Typical ranges are roughly $600–$1,200 for a single aftermarket converter, $1,000–$2,000 for a single OEM converter, and higher totals if both converters must be replaced. Always obtain multiple, detailed quotes and verify warranties to protect your investment. If you’re facing a check engine light or exhaust performance issues, schedule a diagnostic before authorizing any replacement to confirm the exact need.