The short answer
Catalytic converter replacement costs $2,164–$2,483 on average, according to RepairPal, with parts running $1,950–$2,169 and labor $214–$314. The wide vehicle-to-vehicle spread — from about $1,655 on a Ford F-150 to over $3,241 on a Chevy Silverado — reflects how much precious metal content and the number of converters per vehicle affect the parts price.
What is the average cost to replace a catalytic converter?
RepairPal puts the national average at $2,164–$2,483 total: parts $1,950–$2,169 and labor $214–$314. Labor is a small fraction of the total because the parts — coated with platinum, palladium, and rhodium — account for nearly all the cost. A failing converter triggers a P0420 or P0430 OBD-II code and causes a failed emissions test.
| Component | Typical cost |
|---|---|
| Parts (converter + hardware) | $1,950–$2,169 |
| Labor | $214–$314 |
| Total (national average) | $2,164–$2,483 |
The estimate above draws on RepairPal. Because the converter is one of the most expensive non-engine repairs a car can need, it's worth viewing against the annual cost of owning a car and other big-ticket repairs like a failing transmission.
Is OEM or aftermarket the better choice for a catalytic converter?
OEM direct-fit converters from a dealer cost $1,500–$4,000 installed, roughly 40–70% more than aftermarket EPA-compliant units ($300–$1,400 installed). In California and six other CARB states, you must use a CARB-compliant converter — check your state's emissions rules before ordering. For all other states, an EPA-compliant aftermarket unit is legal and performs identically.
- OEM direct-fit: $1,500–$4,000 installed; exact factory match, longest warranty, highest precious metal loading.
- EPA-compliant aftermarket: $300–$1,400 installed; legal in 43 states and performs identically for most vehicles.
- CARB-compliant aftermarket: required in California and the CARB-aligned states; costs more than a standard EPA unit but less than OEM.
The U.S. EPA sets the federal aftermarket-converter rules, while the California Air Resources Board (CARB) sets the stricter standard followed by California and several other states. Installing a non-compliant converter can cause a failed inspection and a fine.
Why does catalytic converter cost vary so much by vehicle?
Vehicle type drives the cost. Hybrids (like the Toyota Prius) and trucks with V6/V8 engines run hotter and carry two or three converters per vehicle — repair costs can exceed $4,000–$6,000 on a Prius. A four-cylinder sedan like a Honda Civic typically lands at $2,500–$3,337. The precious metal content of each unit is the primary variable.
| Vehicle | Typical replacement cost |
|---|---|
| Ford F-150 | ~$1,655 |
| Honda Civic | $2,500–$3,337 |
| Chevy Silverado | $3,241+ |
| Toyota Prius (hybrid) | $4,000–$6,000 |
Vehicles with multiple converters, larger engines, or higher precious-metal loading sit at the top of the range. Diagnosing which converter has failed is part of the job — a code reader points to the bank, but the same logic that drives AC repair cost applies here: parts, not labor, decide the bill.
Why are catalytic converters stolen, and what does it cost to replace a stolen one?
Platinum, palladium, and rhodium in a catalytic converter are worth $50–$300+ at scrap prices. The NICB reported 14,000 catalytic converter thefts in 2024 — down 68% from the 2022 peak of ~64,700, but a 2025 rebound is emerging in some states. Toyota Prius is the most-targeted vehicle due to its high precious metal content. Replacement cost after theft is the same as a normal repair unless your comprehensive insurance covers it.
- Why it happens: a converter can be cut off in under two minutes and sold to a scrapyard for the metal inside.
- Most-targeted vehicles: the Toyota Prius and other hybrids, plus high-clearance trucks and SUVs that are easy to slide under.
- Insurance: theft is covered under comprehensive coverage, subject to your deductible — but normal wear is not.
- Prevention: an anti-theft shield ($150–$300 installed), well-lit parking, and an audible alarm all raise the effort required.
Theft figures come from the National Insurance Crime Bureau (NICB). If your converter is stolen, file a police report first — your insurer will require it before paying a comprehensive claim.
Can a failing catalytic converter be repaired instead of replaced?
Rarely. Once the ceramic substrate inside the converter cracks or melts, the unit must be replaced — there is no effective repair. A diagnostic code (P0420/P0430), rattling from the undercarriage, sulfur smell from the exhaust, and a failed emissions test together indicate replacement rather than repair is needed.
- P0420 / P0430 code: catalyst efficiency below threshold — the most common indicator of a failing converter.
- Rattling underneath: the broken ceramic honeycomb loose inside the housing.
- Rotten-egg (sulfur) smell: unburned hydrocarbons passing through a converter that's no longer working.
- Failed emissions test: the legal trigger that forces the repair in most states.
Cleaning products and fuel additives are marketed as fixes, but they only help when a mildly fouled converter hasn't yet failed physically — they can't rebuild a cracked or melted substrate. When the code is set and the substrate is damaged, replacement is the only durable repair. For the warning lights involved, see what the check engine light means.
Frequently asked questions
How long does a catalytic converter last?
Most original-equipment catalytic converters last 100,000–150,000 miles or more on a well-maintained vehicle. Premature failure is usually caused by oil or coolant contamination entering the exhaust from a separate engine problem.
Can I drive with a bad catalytic converter?
You can drive short distances, but a failing converter reduces engine performance, increases fuel consumption, and will cause an emissions test failure. A glowing-hot or rattling converter is a fire risk and should be inspected immediately.
Does insurance cover catalytic converter replacement?
Comprehensive auto insurance covers theft and some non-collision damage. If the converter failed from normal wear, it is not covered by insurance but may be covered under a powertrain warranty or extended service contract if you have one.
How do I protect my catalytic converter from theft?
Anti-theft shields ($150–$300 installed) bolt over the converter and significantly increase the time and effort required to steal it. Parking in well-lit areas and using an audible car alarm also reduce theft risk.
Sources
CarsLens is editorial guidance, not individualized advice. This page draws on RepairPal, the U.S. EPA, the California Air Resources Board, and the National Insurance Crime Bureau.