How much it costs to replace a catalytic converter in a car

In the United States, replacing a catalytic converter typically costs $900–$3,500 total (parts and labor), but the bill can range from about $700 on the low end to more than $6,000 for certain vehicles, especially luxury models, trucks with multiple converters, hybrids like the Toyota Prius, or in states that require California (CARB)–approved parts. Prices hinge on the converter type (OEM vs. aftermarket), vehicle design, local labor rates, and whether theft damage or rust complicates the job.

What drivers are paying in 2025

Nationwide estimates reflect both volatile precious‑metal prices (rhodium, palladium, platinum) and stricter emissions rules in some states. Here’s the current picture for most gasoline vehicles.

• Parts: $600–$3,000 each for most catalytic converters; OEM parts tend to fall on the higher end, while compliant aftermarket units (especially outside CARB states) are lower.
• Labor: $150–$600, usually 1–3 hours at $100–$200 per hour at independent shops and $160–$250 per hour at dealerships. Severe rust or theft damage can add hours.
• Common total: $900–$3,500. Dual-converter systems, high-performance or luxury models, and CARB-compliant parts can push totals into the $3,500–$6,500+ range.

These figures assume no major collateral damage. If thieves cut wiring or exhaust sections, expect additional line items for pipes, O2 sensors, and hardware.

Price by vehicle type and scenario

Typical gasoline vehicles

Costs vary by vehicle class and whether you choose OEM or aftermarket parts. The ranges below reflect recent shop quotes and parts pricing in 2024–2025.

• Compact/economy sedans: $700–$1,600 (aftermarket), $1,200–$2,700 (OEM).
• Midsize sedans/crossovers: $900–$2,400 (aftermarket), $1,500–$3,500 (OEM).
• Pickup trucks and large SUVs (V6/V8, often with two converters): $1,400–$4,000 (aftermarket), $2,500–$6,500+ (OEM).
• Performance models with integrated exhaust assemblies: $2,200–$5,000+ (mostly OEM).

Choosing an aftermarket unit can significantly reduce the bill where allowed, but ensure compatibility and emissions compliance for your state.

Special cases that run higher

Certain vehicles and regulations drive costs above average because of parts complexity, emissions standards, or theft risk.

• Hybrids (e.g., Toyota Prius): $1,800–$4,000+, thanks to high theft rates and pricey CARB-compliant units where required.
• Luxury European models (BMW, Mercedes, Audi, Porsche): $3,000–$7,500+, often due to integrated assemblies and OEM-only parts.
• CARB states (CA, NY, CO, ME): CARB-approved converters typically add $300–$1,000+ versus non-CARB equivalents.
• Diesel vehicles: Systems may combine diesel oxidation catalysts with DPF/SCR components; replacements can run $2,500–$8,000+.
• Severe rust/corrosion regions: Extra fabrication or pipe replacement can add $200–$800 in labor and materials.

If your vehicle uses multiple converters or integrated exhaust modules, always ask whether individual components can be replaced separately to control costs.

What drives the price

Beyond make and model, several factors influence your final bill. Understanding these drivers helps explain why quotes can differ widely even within the same city.

• OEM vs. aftermarket: OEM parts cost more but may fit better or last longer; quality aftermarket units can be cost-effective when compliant.
• Emissions rules: CARB-compliant converters are mandatory in several states and are pricier than federal-only parts.
• Precious metal markets: Rhodium and palladium price swings ripple into converter pricing.
• Number of converters: V6/V8 engines and some AWD platforms use two or more units.
• Collateral damage: Theft often damages O2 sensor wiring and exhaust tubing, adding parts and labor.
• Labor rates and rust: Coastal/snow-belt vehicles may need additional cutting and fabrication time.
• Related parts: Oxygen sensors ($90–$250 each), gaskets and hardware ($20–$100) often get replaced concurrently.

When comparing estimates, ask shops to itemize parts, labor hours, emissions compliance, and any recommended add-ons like sensors or shields.

Ways to lower the bill

There are practical steps to keep costs in check without compromising emissions compliance or reliability.

• Check warranty coverage: The federal emissions warranty covers catalytic converters for 8 years/80,000 miles on most vehicles; some brands offer longer on specific models.
• Use insurance for theft: Comprehensive insurance typically covers converter theft, minus your deductible; ask about OEM vs. aftermarket allowances.
• Consider compliant aftermarket: In non-CARB states, reputable aftermarket units can save hundreds; in CARB states, use CARB-approved parts only.
• Get multiple quotes: Compare an independent exhaust/muffler shop, a general repair shop, and the dealer.
• Replace related wear items wisely: Bundling O2 sensors and gaskets during the job can prevent future labor repeat.
• Install a theft deterrent: Shields or cages ($150–$500 installed) reduce repeat-theft risk, especially for high-target models.

Always balance upfront savings with long-term durability and legal compliance; cheap, non-compliant parts can fail inspections and cost more later.

Repair timeline and what’s included

Shops generally follow a consistent scope for catalytic converter replacement, with timing affected by rust and damage.

• Time in shop: 1–3 hours typical; 3–5 hours if welding/fabrication is needed after theft or corrosion.
• What’s usually included: Converter, gaskets, clamps/hardware, and applicable shop supplies; O2 sensors if requested or required.
• Post-repair: Clearing diagnostic trouble codes, verifying no exhaust leaks, and ensuring monitors are ready for emissions testing.

Ask for a written estimate and confirm whether taxes, hazmat/disposal fees, and sensor replacements are included to avoid surprises.

When replacement is necessary

Not every check-engine light means a bad converter, but certain symptoms and test results point to the need for replacement.

• Diagnostic codes: P0420/P0430 (catalyst efficiency below threshold) with confirmed sensor function and no exhaust leaks.
• Failed emissions test: Poor catalyst performance under load/monitor conditions.
• Physical damage or theft: Missing or internally rattling converter, visible cuts in exhaust piping.
• Persistent sulfur/rotten-egg smell and loss of power after ruling out fuel and ignition issues.

“Catalytic converter cleaning” additives rarely fix a truly failing substrate; a proper diagnosis prevents unnecessary parts replacement.

Legal and warranty notes

Because converters directly affect emissions, there are rules that shops and owners must follow.

• Federal law prohibits removing or installing non-compliant converters; CARB states require CARB-certified units.
• Keep documentation: Part numbers, certification labels, and invoices may be checked during inspections.
• Warranty basics: Federal emissions warranty is 8 years/80,000 miles for converters; many vehicles have shorter coverage for related components.
• Core returns: Some converters carry a core charge that’s refunded when the old part is returned for recycling.
• Inspection readiness: After replacement, drive cycles may be needed for monitors to set before an emissions test.

Following the rules ensures you pass inspections and avoid fines, while preserving coverage should future issues arise.

Bottom line

Expect $900–$3,500 for most catalytic converter replacements, with costs climbing past $6,000 for premium models, multi-converter systems, hybrids, and in CARB states. Verify warranty or insurance options first, request itemized quotes, and choose compliant parts that balance cost with longevity.

Summary

Catalytic converter replacement costs vary widely by vehicle, parts choice, emissions rules, and labor complexity. In 2025, most U.S. drivers pay $900–$3,500, though luxury, hybrid, diesel, and CARB-compliant jobs can exceed $4,000–$6,500. Check for 8-year/80,000-mile emissions warranty coverage, consider insurance claims for theft, and use compliant aftermarket parts where appropriate to manage the bill without risking inspection failures.