A converter replacement runs $945–$2,500 installed on a mainstream car, and the part is 70% of the bill. Here's the price map — aftermarket vs OEM vs universal, CARB pricing, labor hours, and the theft scenario that adds sensors and insurance math on top.
A catalytic converter is a ceramic honeycomb coated with platinum, palladium, and rhodium. The metal content, not the steel shell, sets the part price — which is why the same shape of part costs $350 on a compact and $1,800 on a truck, why prices drift with commodity markets, and why thieves with reciprocating saws target them at all. Rhodium has traded above gold for most of the past five years.
| Source | Part Cost | Labor | Notes |
|---|---|---|---|
| Universal weld-in | $100–$450 | 2.5–4 hrs | Cheapest part, welding labor eats the savings; not legal in CA/NY |
| Direct-fit aftermarket | $300–$2,500 | 1–2 hrs | The standard choice; quality varies by brand |
| CARB-compliant | +30–60% | 1–2 hrs | Required in California and New York, matched to engine family |
| OEM / dealer | $700–$3,500+ | 1–2 hrs | Often required on hybrids and theft claims; best longevity |
| Vehicle | Aftermarket Part | Installed Total* |
|---|---|---|
| Compact / subcompact | $350–$800 | $470–$1,040 |
| Sedan / small crossover | $450–$1,100 | $570–$1,340 |
| Midsize SUV / minivan | $500–$1,300 | $620–$1,540 |
| Full-size truck / SUV | $600–$1,800 | $720–$2,040 |
| Hybrid (Prius-style) | $700–$2,000 | $820–$2,240 |
| Luxury / performance | $1,200–$3,000 | $1,320–$3,240 |
*Direct-fit aftermarket part plus 1–2 hours at $120/hr. National installed averages land at $2,177–$2,506 once dealer parts and trucks mix in. Luxury and diesel applications often run two converters in series — double everything.
Vehicle class, part source, CARB toggle, your shop's labor rate — with theft extras and the insurance deductible built in.
Catalytic Converter Cost Calculator →A thief with a saw takes the converter in ninety seconds and leaves a crime scene, not a repair job. Pipes are cut short, O2 sensors and their wiring are destroyed ($100–$250 per sensor), flanges and gaskets are gone ($30–$120), and insurers frequently require OEM or new-only parts on theft claims, pushing the parts bill toward dealer pricing. On the sedan example: $570–$1,340 planned becomes $800–$1,960 after a theft.
The insurance math: comprehensive coverage pays for theft, liability-only does not. With a $500 deductible — the most common — a $1,700 theft repair nets about $1,200 from the insurer. If the repair quote barely clears the deductible, paying cash keeps a claim off your record; if it doubles it, file. Theft claims are not-at-fault, so the premium hit is usually mild.
Many converter replacements happen because of P0420, catalyst efficiency below threshold. But the code says the computer measured poor efficiency; it doesn't say which part is at fault. A lazy downstream O2 sensor ($150–$400) triggers the same code. So does an exhaust leak upstream of the sensor, or a long-ignored misfire that actually damaged the converter. Fix any misfire or lean code first, verify the sensor readings, and only then buy metal. The OBD2 code lookup decodes the code; the repair cost calculator prices the alternatives.
Prevention is cheap relative to the deductible alone. VIN or license etching on the shell runs $20–$100 and some insurers discount for it. Steel shields made for the top theft-target models run $150–$700 installed; cable cages cost less and deter less. Parking inside matters more than any product — most thefts happen on driveways and street parking overnight. If you drive a late-model hybrid or a high-riding truck in a metro area, the shield pays for itself the first time someone crawls under and finds one.
Plan on $945 to $2,500 installed on a mainstream car, with published national average installs of $2,177 to $2,506. A direct-fit aftermarket part runs $300 to $2,500 by model, OEM dealer parts run 1.5 to 2 times aftermarket, and labor adds $100 to $300 at typical independent-shop rates for a bolt-in job.
By comprehensive coverage, yes; liability-only policies pay nothing. You pay your deductible ($250 to $1,000, with $500 the most common) and the insurer pays the rest. On a $1,700 theft repair with a $500 deductible, insurance pays about $1,200. Theft is a not-at-fault comp claim, so the premium impact is usually smaller than an at-fault accident.
Both states require CARB-certified converters matched to your specific engine family, and CARB-compliant direct-fit units cost roughly 30% to 60% more than 49-state federal converters. Installing a federal converter on a California-registered vehicle is illegal, even if purchased out of state, and both states inspect for it.
A direct-fit unit on a healthy, un-rusted exhaust is a driveway job with basic tools: unbolt the old one, bolt in the new one, swap the sensors. Universal weld-in units are not, unless you own a welder and a lift. The catch is seized hardware and 15-year-old exhaust bolts, which is how simple Saturday jobs become shop visits.
Late-model Toyota hybrids (Prius especially), Honda, and Ford trucks and SUVs with high ground clearance. Hybrid converters carry more precious metal and convert efficiently from a cold start, which makes them the richest targets. Reported thefts nationally went from roughly 1,300 in 2018 to more than 150,000 in 2022 per NICB, declining since but still tens of thousands a year.