Alternator Scrap Price Today: Whole, Stripped or Sold as a Core

Most alternators are worth more sold whole than stripped. At today’s rates a 12 to 15 pound unit brings roughly $10 to $12 as-is, about $15 to $20 stripped for copper after 25 minutes of work, and $18 to $45 as a rebuildable core with no extra work at all. The core route wins on almost every unit that still turns.

Three ways out for one alternator

You have a box of them from parted-out cars, and each one has the same three doors. Sell it whole at the yard’s motor rate. Break it open and sell the copper separately. Or sell it to a rebuilder as a core.

Most advice online points at door two. The reasoning sounds right: alternators hold copper, copper pays well, so get the copper out.

The reasoning is right and the conclusion is usually wrong. Here is why.

Today’s whole-unit rate

Two things about that table are worth pausing on.

The copper row is only a few dollars above the whole-unit row. That gap, not the copper total, is what your stripping time actually buys.

And the core row beats both without you touching a screwdriver.

Door two: stripping, timed honestly

How much copper in an alternator is the question everyone starts with. The alternator copper weight in a typical car unit is 2.5 to 3.5 pounds recoverable, and copper makes up less than 25 percent of the unit’s total weight. The rest is steel laminations, an aluminium case and a pulley.

At $5.81 per pound that copper is worth roughly $15 to $20. Selling the same unit whole brings about $10 to $12. So the stripping premium is around $5 to $8 per alternator, for about 25 minutes of work.

That is roughly $12 to $19 an hour, before you count the blade wear, the mess and the aluminium case you now have to sell separately. Published alternator teardown copper yield figures vary by unit size, so weigh your own before assuming the range above applies to a heavy-duty or truck alternator.

Two independent sources reach the same conclusion:

• A scrapper who ran 50 alternators and starters a month and tried every method reported that the yard paid more for whole units called in as electric motors than for the separated metals.
• ScrapMonster’s own alternator guidance notes that copper pre-extraction suits only very high volume operations, and that many buyers will pay more for intact alternators.

Stripping is not never worth it. It is worth it when you have hundreds of units, a stripping setup already paid for, and a buyer who does not pay a premium for intact ones. For a box of twenty in a garage, it is not.

Door three: the core market

This is the route most people skip, and it is usually the best one.

Rebuilders buy used alternators to remanufacture, and they pay well above metal value because they are buying a housing and a shaft, not a lump of copper. A rebuildable core is commonly worth $18 to $45 against $10 to $12 as scrap.

What makes a core acceptable is simple and checkable in ten seconds:

• The case is unbroken, with no cracks through the mounting ears.
• The shaft turns freely by hand.
• The pulley is still attached.
• The unit has not been opened, drilled or partially stripped.

That last point matters. Once you have started stripping, the core value is gone permanently, so door two closes door three. Check for core value first, always.

The break-even table

Three doors, one unit, side by side. The last column is the one that decides it, because it prices your time rather than the metal.

• Sell whole: about $10 to $12, zero extra minutes, so the hourly rate is effectively infinite.
• Strip for copper: about $15 to $20, minus the $10 to $12 you would have had anyway, leaves $5 to $8 for 25 minutes. That is $12 to $19 an hour.
• Sell as a core: $18 to $45, zero extra minutes, and it beats both other doors on any unit that still turns.

The break-even point for stripping arrives when copper climbs far enough that the gap covers your time, or when volume lets you strip in a fraction of 25 minutes per unit. Neither applies to a box of twenty in a garage.

Where you sell beats what you do

Here is the finding that outweighs the entire whole-versus-stripped debate.

Reported US yard prices for alternator scrap in 2026 range from $0.20 to $3.50 per pound, with an average near $0.92. Other published averages land at $0.48 and as low as $0.15 to $0.20.

That is a spread of more than fifteen times on the identical item. Stripping might add 50 percent. Choosing the right buyer can multiply the number.

So before deciding which door, make two calls. Ask whether the yard grades alternators separately or lumps them into electric motors, and ask whether they pay a premium for intact units. Not every yard even accepts them.

Not every alternator is the same unit

Two things separate one alternator from another before any of the three doors apply, and both are checkable in seconds.

Amperage tracks copper. Standard units run roughly 65 to 140 amps; high-output alternators fitted to trucks, vans and performance vehicles start around 150 amps and run to 400. Recyclers state the relationship plainly: higher amperage generally correlates with greater copper content, and high-output units carry denser windings and larger housings, which makes them more valuable both as scrap and as rebuildable cores.

The rating is usually printed on the case or encoded in the part number, so it costs nothing to look. A related design note: high-output units often use a six-phase hairpin stator rather than a conventional three-phase slot winding, which packs a larger conductor cross-section into the same space. That is the same construction the EV drive unit page describes, and it means more copper and a harder strip.

The thirty-second core test

Before you quote anything as a core, four checks. Any one of them failing usually means scrap rather than core.

• Hold a magnet near the shaft end. Weak or absent attraction suggests a demagnetised rotor, which reduces remanufacturing potential and lowers core value directly.
• Look at the windings. Discoloured copper means overheating.
• Spin the pulley. Wobble means bearing failure.
• Look inside the housing. Rust means water damage.

Severely damaged units still hold scrap value but lose core eligibility, which is the difference between the top and bottom rows of the table above.

Which door for which alternator

• Turns freely, case intact, pulley on: sell as a core. Highest return, zero extra work.
• Seized, cracked case, or already opened: sell whole at the motor rate.
• Hundreds of units and a stripping setup: stripping starts to make sense, but price intact units first.
• High-output or hybrid vehicle units: ask specifically. Specialty and green-vehicle alternators are reported to fetch a premium over standard car units.
• Common applications from major suppliers: worth pricing as cores individually. Denso alternator core value, for instance, tracks how readily a rebuilder can resell that exact unit rather than the badge itself.

For how the alternator ranks against everything else on a scrap car by return per hour, see the most valuable parts ranking. The muffler page covers the exhaust side, and the catalytic converter hub covers the one part that genuinely outpays everything here.

Alternator prices around the world

Copper settles in US dollars, so the metal inside an alternator is worth the same everywhere. Currency and local buyer depth are what change.

Treat these as the metal-value anchor rather than a local quote. Core markets are regional and do not convert this way, so ask locally whether rebuilders buy in your market at all.

If you are buying a replacement rather than selling the old one, the alternator buying guide prices reman, new and core exchange side by side.

Questions people actually ask

“I have twenty of these in a bin, what do I do?”

Spin each shaft. The ones that turn go in a core pile, the seized ones go in a scrap pile. Sell the core pile to a rebuilder and the scrap pile whole. Do not open any of them.

“The yard offered me electric motor rate, is that a rip-off?”

No, that is normal. Alternators and electric motors are graded together at many yards because the construction is similar, so the electric motor scrap price per pound is often the number you are quoted. Whether it is a good rate depends on the yard, which is why the second call matters.

“Is the copper inside really worth that much?”

The copper is real, but it is under a quarter of the weight and it takes 25 minutes to reach. The number that matters is the difference between stripped and whole, not the copper total.

Common mistakes

• Opening an alternator before checking whether it has core value, which closes the highest-paying door permanently.
• Comparing the copper value against zero rather than against the whole-unit price you would have received anyway.
• Taking the first yard quote when reported rates on the same item range from $0.20 to $3.50 per pound.
• Throwing the aluminium case in with steel after stripping, giving away the second metal you worked for.
• Selling copper armature scrap loose with the windings, when the two grade differently and are worth separating once the unit is already open.
• Assuming every yard takes alternators. Many do not, and a wasted trip costs more than the unit is worth.
• Mixing hydraulic pumps or other heavy castings into an electric motor bin, which gets the whole load downgraded.

Figures on this page are indicative buyer ranges, not offers to buy. Metal rows are computed from the site’s tracked daily benchmarks; core values are market references and are not futures-linked. Confirm locally before selling.

Frequently asked questions