Parts by vehicle class, labor, theft extras, and the insurance math
| Part Source | Part Cost | Labor (direct-fit) | Notes |
|---|---|---|---|
| Universal weld-in | $100–$450 | 2.5–4 hrs (cut + weld) | Cheapest part; needs a welder; illegal in CA/NY |
| Direct-fit aftermarket | $300–$2,500 | 1–2 hrs (bolts in) | The standard choice; price swings with precious-metal loading |
| CARB-compliant direct-fit | +30–60% vs federal | 1–2 hrs | Required in California and New York; verified by executive order number |
| OEM / dealer | $700–$3,500+ | 1–2 hrs | Often required on theft claims and hybrids; best longevity |
Published 2025–26 national ranges (AutoZone, ConsumerAffairs, MarketWatch). Installed averages nationally land near $945 on the low end and $2,177–$2,506 at the middle once dealer parts, trucks, and multi-converter exhausts are included. Precious-metal prices (platinum, palladium, rhodium) move aftermarket part costs month to month, which is the same metal content that makes the parts a theft target.
| Vehicle Class | Aftermarket Part (federal) | CARB Version | Typical Installed Total* |
|---|---|---|---|
| Compact / subcompact | $350–$800 | $490–$1,120 | $470–$1,040 |
| Sedan / small crossover | $450–$1,100 | $630–$1,540 | $570–$1,340 |
| Midsize SUV / minivan | $500–$1,300 | $700–$1,820 | $620–$1,540 |
| Full-size truck / SUV | $600–$1,800 | $840–$2,520 | $720–$2,040 |
| Hybrid (Prius-style) | $700–$2,000 | $980–$2,800 | $820–$2,240 |
| Luxury / performance | $1,200–$3,000 | $1,680–$4,200 | $1,320–$3,240 |
*Aftermarket part + 1–2 hrs labor at $120/hr. Hybrids carry more precious metal (that's why they're the top theft target) and often need OEM-specific units. Luxury and diesel applications can run two converters in series; the calculator prices one.
A converter quote is mostly a parts quote with labor bolted on. The range between vehicles is enormous because converters are precious-metal reactors: a compact car's unit might carry $150 of platinum-group metal while a truck's carries $800, and the part price tracks the metal. This calculator prices the part by vehicle class and source, applies the CARB premium where relevant, and adds labor at your shop's rate.
Total = part + labor + sensors + hardware. Part comes from the class band ($350–$800 compact up to $1,200–$3,000 luxury), multiplied by 1.5–2.0 for OEM, or swapped to the universal band ($100–$450) with longer labor (2.5–4 hours of cutting and welding). CARB compliance multiplies the part by 1.4. Labor = hours × your rate; direct-fit jobs run 1 to 2 hours. Sensors add $100–$250 each and hardware $30–$120 — on a theft repair, assume both.
Set your vehicle class and pick the part type you'd actually buy: direct-fit aftermarket for most people, OEM if your insurer or your hybrid demands it, universal only if you have a trusted welder and live outside California and New York. Enter your local shop rate ($100–$150 independent, $150–$200+ dealer in most metros). For a theft, switch the scenario and the calculator shows what insurance pays after your comprehensive deductible.
A 2018 sedan with a failing converter (that P0420 code from the OBD2 lookup), at an independent shop charging $120 an hour. Direct-fit aftermarket part: $450 to $1,100. Labor at 1 to 2 hours: $120 to $240. Total for the planned replacement: $570 to $1,340. Now the theft version: the thief's saw took both O2 sensor bungs with it, so add $230 to $620 in sensors and hardware, bringing the repair to $800 to $1,960. With a $500 comprehensive deductible, insurance pays $300 to $1,460 and the claim is clearly worth filing at the top of that range — and borderline at the bottom, where a not-at-fault claim's future premium effect can eat the difference. Upgrading the same sedan to CARB-compliant parts pushes the part to $630–$1,540 and the total to $750–$1,780.
Theft context worth knowing: reported converter thefts went from roughly 1,300 in 2018 to a peak above 150,000 in 2022 per NICB data, declining since as metal prices eased and states tightened scrap-sale rules. If you're replacing because of theft, layer in prevention: VIN etching runs $20–$100, steel shields $150–$700 installed. And if the check-engine light came first, price the whole diagnosis path with the car repair cost calculator before assuming the converter itself is dead.
Nationally, installed replacement runs from about $945 to $2,500 on mainstream cars, with published average installs around $2,177 to $2,506 once dealer parts and trucks are mixed in. The parts are most of the bill: a direct-fit aftermarket converter runs $300 to $2,500 by model, OEM dealer units run roughly 1.5 to 2 times aftermarket, and labor adds $100 to $300 at typical shop rates for a direct-fit bolt-in job.
Thieves cut the converter out with a saw, so a theft replacement is not a clean bolt-in. The pipes are shortened or damaged, O2 sensors and wiring get destroyed ($100 to $250 per sensor), flanges and gaskets need replacing ($30 to $120), and some insurers require OEM or new-only parts on theft claims, which pushes the parts bill toward dealer pricing. Expect a theft repair to run several hundred dollars above a planned replacement on the same car.
Only comprehensive coverage pays for theft, and liability-only policies pay nothing. With comprehensive, you pay your deductible ($250 to $1,000, $500 most common) and the insurer pays the rest. On a $1,700 theft repair with a $500 deductible, insurance pays about $1,200. Because a theft claim is not your fault, the premium impact is usually smaller than an at-fault accident, but weigh a claim against a repair bill that is only a few hundred over the deductible.
Yes. California requires converters certified by the California Air Resources Board for the specific engine family, and New York adopted the same requirement. CARB-compliant direct-fit units typically cost 30% to 60% more than 49-state federal converters, and installing a non-CARB unit on a California-registered car is illegal even if you buy it out of state. The database of approved converters is on the CARB website; your shop can verify the executive order number.
Mechanically, usually yes: a degraded converter (the classic P0420 code) mostly costs you some fuel economy and an emissions-test failure. Removing or gutting it is a federal offense on any vehicle driven on public roads, with four-figure fines per tampering event for shops. A clogged converter is different — it chokes the engine, overheats, and can start a fire, so that one gets fixed promptly.
Layer the cheap stuff first: park in garages or well-lit areas near cameras, and etch the VIN or license number on the shell ($20 to $100, and many insurers give a discount for it). Hardware adds more: steel shields for common theft-target models run $150 to $700 installed, cable cages less, and an aftermarket alarm with tilt or vibration sensing $100 to $300. Targets of choice remain late-model Toyota hybrids, trucks, and SUVs with high ground clearance.