What car parts have the most scrap value?

The catalytic converter usually leads, because it contains small amounts of precious metals such as platinum, palladium and rhodium. After that come reusable engines and transmissions, aluminum wheels, and parts with copper or lead in them, like alternators, starters and batteries.

Is it better to sell a car for parts or scrap it?

Parting a car out yourself can bring in more money if you have the tools, the space, the time and buyers lined up for each part. Most people selling a junk car are better served selling it whole, since one sale and one pickup beat months of listings and a stripped shell nobody wants.

My catalytic converter was stolen. Can I still sell the car?

Yes. Tell us it's missing when you ask for an offer, and we'll price the car without it. An accurate description keeps the number from changing when the truck arrives.

What Makes a Junk Car Worth More Than Its Weight

Every junk car has a floor: the metal it's made of. What lifts an offer above that floor is the parts that still have a use, either as working parts or as valuable material. This guide covers which ones matter, which don't, and how they shape what we pay for junk cars around Gary.

By Cash for Junk Cars Gary. Published September 30, 2026.

Which parts make a junk car worth more?

These parts lift a junk car’s value above its bare weight:

Catalytic converter: holds platinum, palladium and rhodium.
Engine and transmission: worth more when they can be reused.
Aluminum wheels: aluminum beats steel.
Battery, alternator and starter: lead and copper.
Doors, lights and panels on common models.
Everything together: a complete, unstripped car.

The last item on that list is the one people miss. A car’s parts are worth the most while they’re still on the car, because a buyer can decide what to reuse and what to recycle. Every piece that disappears before pickup is value that left with it.

The catalytic converter

Your converter sits in the exhaust under the car, and inside it is a ceramic honeycomb coated with small amounts of precious metals, mainly platinum, palladium and rhodium. Those metals are why converters get recycled with care, and also why thieves cut them off parked cars.

How much a converter adds depends heavily on the vehicle: different models use different converters with different amounts of metal inside. That’s one reason we ask for the exact year, make and model rather than just “a sedan.”

If yours has been stolen, you can still sell the car. Just say so up front.

Engine and transmission

A running engine or a working transmission from a model that’s still common on the road can be pulled and reused. That makes it worth more than its weight in metal. A seized engine or a transmission that’s already failed is mostly metal.

This is where “does it run?” earns its place on the phone call. On a popular model, a good drivetrain can be the difference between an offer based on weight and an offer based on parts.

Wheels

Aluminum alloy wheels are worth more than plain steel ones, simply because aluminum is the more valuable metal. Tires don’t add much. A car sitting on four alloys is a better sale than the same car on its rotors after somebody took the wheels.

Battery, alternator and starter

Car batteries are mostly lead, and lead is recycled. Alternators and starters have copper windings inside them. None of these is a big-ticket item by itself, but they add up, and a car that still has them is simply more complete. The same goes for the radiator, which contains aluminum and sometimes copper.

Body parts and lights on common models

Doors, hoods, tailgates, headlights, taillights and mirrors from popular models get resold as used parts. They matter most on vehicles that are still common, which is why the same parts on a rare car add less. Trucks and pickups tend to do well here: their beds, tailgates and doors stay in demand for years.

Parts that add little

Some things just don’t move the number. Carpet, headliners, interior trim, most plastic panels, damaged seats, broken glass and worn tires take more work to recover than they’re worth. Don’t worry about cleaning out the interior for our sake; just take your own belongings and the plates.

Should you pull parts before selling?

Our advice is no, unless you’re set up to do it well. Pulling a converter or a set of wheels to sell separately means tools, a safe place to work, and your own buyers. And once those parts are off, the rest of the car is worth less than it was.

If parts are already gone, that’s fine. Tell us what’s missing when you ask for an offer. The full list of factors that change the offer covers the rest, and the quote form takes about a minute.

Quick answers

What car parts have the most scrap value?: The catalytic converter usually leads, because it contains small amounts of precious metals such as platinum, palladium and rhodium. After that come reusable engines and transmissions, aluminum wheels, and parts with copper or lead in them, like alternators, starters and batteries.
Is it better to sell a car for parts or scrap it?: Parting a car out yourself can bring in more money if you have the tools, the space, the time and buyers lined up for each part. Most people selling a junk car are better served selling it whole, since one sale and one pickup beat months of listings and a stripped shell nobody wants.
My catalytic converter was stolen. Can I still sell the car?: Yes. Tell us it's missing when you ask for an offer, and we'll price the car without it. An accurate description keeps the number from changing when the truck arrives.