How Much Is a Catalytic Converter Worth?

A used catalytic converter is worth roughly $50 to over $1,200, and the figure is set by a stamped serial number rather than by the converter's size. Factory units typically contain 10 to 20 grams of precious metal and quote between $100 and $800. Aftermarket replacements can be worth a tenth of that. If the converter is still attached to a car you are thinking of scrapping, compare the whole-vehicle figure from a car scrap value calculator against the converter price on its own, because removing it usually costs more than it returns.

Here is what determines the number, what the metals market is doing right now, and how to sell one legally.

Why a converter is worth anything

The value sits in a few grams of platinum, palladium and rhodium coating a ceramic honeycomb inside the shell.

Those three platinum-group metals catalyze the reaction that converts carbon monoxide and unburned hydrocarbons into less harmful gases. They are priced by the troy ounce, so a component containing 10 to 20 grams of them carries real money in a part most owners never think about.

Nothing else in the unit matters much. The steel shell is worth its weight as scrap, which is negligible by comparison.

The serial number sets the price

This is the single most important thing to understand.

Buyers price converters from a database keyed to the stamped serial or part number on the shell or heat shield. That code identifies the exact unit and its precious metal loading, which is the only reliable way to know what is inside without destroying it.

A missing, damaged or ground-off serial number almost always produces a lower offer, because the buyer is now guessing and will guess conservatively.

To get a quote, find the stamped code and give it to a licensed buyer, or send clear photographs of the unit. Reputable converter recyclers quote against the number rather than against a general description.

Loading matters, not size

Two converters of identical dimensions can differ tenfold in value.

The variable is how richly the honeycomb is coated, which depends on what the manufacturer needed to meet emissions standards for that specific engine. A large converter from a low-emission-requirement application can be worth less than a compact one from a vehicle needing aggressive treatment.

This is why size-based guesses are worthless and why the serial number is the only reliable input.

Value by type

Broad categories, using typical 2026 US quotes for intact, uncut units with readable serial numbers.

Factory OEM units generally run $100 to $800, containing 10 to 20 grams of precious metal.

Aftermarket replacements are the trap. They contain minimal precious metal and can quote as low as $15. A converter replaced years ago is worth far less than its owner assumes, and the buyer will discover this even if the seller never knew.

European and Japanese units generally carry richer coatings than domestic equivalents and quote higher.

Hybrid converters sit at the top. Toyota Prius units have quoted between $300 and $700, and some hybrid and European converters have exceeded $1,000. The loading reflects the difficulty of controlling emissions on an engine that starts and stops repeatedly rather than running continuously.

Common domestic examples land lower. Ford F-150 converters have quoted around $150 to $250.

Treat all of these as starting points. Your exact unit and the day's metals prices set the real number.

What the metals market is doing

Converter values track platinum, palladium and rhodium daily, and both have moved substantially in recent years.

Palladium traded at $1,348 per ounce on August 17, 2026, up roughly 22% year over year and near a seven-week high. That is well below its 2022 peak near $2,800, but materially above where it sat earlier in the cycle.

Rhodium has fallen much further, from roughly $14,000 per ounce at its peak to around $4,800. Since rhodium is the most expensive metal in a converter, that decline pulled scrap values down across the board from their theft-wave highs.

Two forces now pull in opposite directions. US buyers have favored hybrids over battery-electric models through the first half of 2026, which supports demand for autocatalyst palladium. Against that, the longer-term shift toward battery-electric vehicles removes converters from the road entirely, and analysts remain cautious about a potential global palladium surplus.

The practical implication: quotes carry short expiry. Some buyers offer a price lock, commonly around ten days, which is worth asking about.

What the buyer does with it

Understanding the downstream process explains most of the pricing rules above.

A converter recycler decans the unit, separating the ceramic substrate from the steel shell. The substrate is crushed and sampled, and an assay determines the actual platinum, palladium and rhodium content. The refiner then pays against that assay, minus processing costs and a margin.

Two consequences follow directly. Because payment tracks assayed content, anything reducing recovery rate reduces your price, which is why gutting a converter yourself is penalized so heavily. And because assay takes time while metals prices move daily, buyers build a margin against that risk, which is why a price lock has value to you and a cost to them.

Volume also explains the gap between buyer types. A specialist processing thousands of units negotiates better refining terms than a general yard shipping occasional pieces, and part of that advantage reaches the seller.

Who pays the most

Not all buyers are equivalent, and the gap is large.

General scrap yards typically pay 30% to 50% less than dedicated converter recyclers. A general yard treats the unit as an unfamiliar commodity and prices defensively; a specialist has refining relationships and a database, and prices against your serial number.

Contact at least three buyers. Prices vary because overhead and refining arrangements differ. Also confirm what the quote covers, since some price the complete converter and others price only the de-canned material inside.

Four mistakes that destroy value

Cutting it open. Removing the honeycomb yourself lowers the recovery rate during refining, and buyers price accordingly. Sell it whole.

Damaging the serial. Grinding, heavy corrosion or cutting through the stamped area removes the buyer's ability to identify the unit.

Trimming the wrong pipes. Excess pipe can be trimmed for shipping, but cutting into the converter body itself is different, and buyers distinguish sharply between the two.

Pulling it off a car you are scrapping anyway. This is the expensive one, covered below.

Usually worth more left on the car

For most owners, this is the decision that actually matters.

A complete vehicle sold to a buyer who prices parts as well as metal brings roughly $50 to $400 more than the same car weighed in as bare tonnage. The converter is a large part of that premium. Removing it reduces the whole-car offer by more than the unit typically fetches on its own, so the seller ends up with two smaller payments instead of one larger one.

The exception is a genuinely high-value unit, such as a hybrid converter quoting several hundred dollars against a car whose total scrap value is modest. Even then, get the converter quote by serial number first and compare it against the reduction the vehicle buyer will apply. Decide on two real numbers, not on the assumption that separating parts always pays.

Selling one legally

Theft during the 2020 to 2023 spike prompted most states to regulate these transactions, and the requirements are now strict.

As of 2026, proof of ownership is required in California, Texas, Florida, New York, Illinois and more than thirty other states. Expect to present government-issued photo identification, documentation connecting the converter to a vehicle you own, and to have the transaction recorded. Many states restrict or prohibit cash payment, using checks or electronic transfer to create a traceable record instead.

Sell only to a licensed buyer and keep your receipt. A buyer willing to skip the paperwork is a buyer creating a problem for you as well as for themselves.

Frequently asked questions

How do I find my converter's serial number? Look for a stamped code on the converter body or the heat shield. Formats vary by manufacturer. If it is hard to read, photograph it clearly and send the image to a buyer, since experienced recyclers identify units visually.

Why is my converter worth less than a similar one? Precious metal loading differs by application, and the metals market moves daily. Two units of the same size from different vehicles can quote tenfold apart, and the same unit can be worth less this week than last.

Is an aftermarket converter worth anything? Little. Aftermarket units contain minimal precious metal and can quote as low as $15. Factory stamps and serial numbers usually distinguish them from OEM parts.

Can I sell a damaged converter? Generally yes, provided the internal material is still inside. Value drops sharply if the honeycomb has been removed or the unit has been cut open.

Should I sell my converter before scrapping the car? Usually not. The reduction applied to the whole-car offer typically exceeds what the converter brings separately, and most states require ownership documentation for a standalone sale.

Are converter prices going up or down? Both metals sit well below their peaks, with palladium down from around $2,800 per ounce in 2022 and rhodium down from roughly $14,000. Palladium has recovered somewhat, rising about 22% over the past year, but the long-term shift toward battery-electric vehicles weighs on demand.

Do diesel converters differ? Yes. Diesel oxidation catalysts and particulate filters use different formulations and are graded separately, so quotes for diesel units follow their own scale.

Does theft risk affect what mine is worth? Not directly, but it shapes how you must sell. The 2020 to 2023 theft wave produced the documentation rules now in force, and it is why a legitimate buyer will ask for identification and proof the unit came from your own vehicle.

How long is a quote good for? Often only days, since palladium and rhodium move daily. Some recyclers offer a lock of around ten days once they have your serial number, which removes the risk of the market moving while the unit is in transit.

Getting an accurate number

Find the stamped serial, photograph it, and send it to three licensed converter recyclers rather than a general scrap yard. If the unit is still attached to a car you plan to scrap, get the whole-vehicle quote at the same time and compare the two figures directly. That comparison, not a published average, is what tells you whether removal is worth doing.