What to Do With Obsolete Parts Inventory (Before It Eats Your Cash)

Jul 10

Obsolete parts inventory is any part sitting on your shelf that hasn't moved in twelve months. It isn't inventory anymore. It's a decision somebody made a while back, and it's still charging you rent.

Parts are cash. That's the sentence to hold onto. Every part on your shelf is money you already spent, sitting in a form you can't spend again.

Which makes the parts that don't move something worse than useless. It's like having cash in a bin you can't access. You can walk past it. You can count it at year-end. You cannot make payroll with it.

How obsolescence happens to good parts managers

Nobody orders dead inventory on purpose. It arrives one reasonable decision at a time.

A customer asked for something unusual and you didn't have it, so you ordered two. One sold. A manufacturer ran a stocking program with good terms, so you took the package. A model got popular, you stocked deep, and then the model changed. Somebody ordered a part last year because they ordered it the year before, and nobody ever asked why.

Every one of those was defensible on the day it happened. Twelve months later, they're all the same thing.

That's what makes this hard, and it isn't about arithmetic. Pulling your obsolescence percentage means looking at a list of your own past confident decisions. You have to put your ego aside for that one, and I'm not going to pretend it's fun.

The two numbers that tell you the truth

Your obsolescence percentage. What portion of your inventory hasn't moved in twelve months?

Your inventory turns. How many times a year does your whole inventory sell through and get replaced? Depending on the space you're in, three turns a year is a good place to be.

Read them together. A parts department with beautiful margins and one turn a year isn't profitable. It's a warehouse with a cash register attached.

And here's the piece that catches people. Obsolescence and fill rate pull against each other, which is why you can't manage either one alone. Stock deeper and your fill rate climbs while your turns collapse. Stock leaner and your turns look great while customers walk out empty-handed and go down the road.

The job isn't to win one of those. It's to hold both.

What to actually do with the dead stuff

Work the list in this order, because it goes from most money back to least.

Send it back. Flag every part with no movement in the last twelve months and find out whether your manufacturer will take it on an OEM return. Most dealers never ask. Some manufacturers have annual return windows you're quietly letting expire. Ask before you do anything else, because this is the only option that gives you real dollars back.

Move it inside the dealership. If you rebuild used equipment, some of that dead stock has a home in your own shop at your internal parts rate.

Sell it to somebody who needs it. The shop nearby that services all brands. Another dealer in your manufacturer's network who's currently telling a customer they'll have to order it. Your wholesale rate exists for exactly this.

Discount it and move it out. Less than you paid, more than nothing. A part sold at a loss is cash you can use. A part on the shelf is a loss you haven't admitted yet.

Scrap it. Somebody has to say it out loud. If a part hasn't moved in five years and nobody will take it, the shelf space is worth more than the part. That space is where the fast movers go.

But Sara, what if somebody asks for it next month

I know. It's the whole reason those parts are still there.

"Sara, the day after I send it back, a customer's going to walk in and need that exact part, and I'll look like an idiot."

Maybe. It happens. But those thoughts are doing a lot of heavy lifting to keep you from admitting that you're paying to store a part for a customer who hasn't asked for it in a year, in the hope that someone might, someday.

And you already know what to do when that customer walks in. You order it, you tell them exactly when it'll be here, and you write the part number down. If three different customers ask for it inside a year, you start stocking it again. That's not a failure. That's the system working.

Stock what sells. Track what you miss. Neither one of those says keep everything forever, just in case.

Where to start

Don't clear the whole back room this month. 30% easier, sustained, beats 100% better, abandoned.

Pull one report: every part with no movement in the last twelve months. Then make one phone call to your largest manufacturer and ask what their return policy is and when the window closes.

That's the whole assignment. One report, one phone call, this week. The report tells you the size of the problem. The phone call tells you how much of it somebody else will take off your hands.

If you want to see what else in your parts department is quietly costing you time and margin, our parts self-assessment walks you through it in about 15 minutes.

Obsolescence, turns, and the inventory KPIs are covered in our Parts Manager Certification, where we work through the reports, the return process, and the stocking rules that keep dead inventory from building up in the first place.

Every part in that back room was once a good idea. Go find out which ones still are.

Frequently Asked Questions

What counts as obsolete parts inventory?
Generally, any part that hasn't moved in twelve months. Some dealerships use a longer window, but twelve months of no movement is the standard trigger for reviewing whether a part should be returned, relocated, discounted, or written off.

What should I do with obsolete parts?
Work through the options in order of return: request an OEM return from your manufacturer, use the parts internally if your dealership rebuilds equipment, sell them at wholesale to shops or other dealers, discount them to move them out, and scrap what nobody will take. Manufacturer returns recover the most money and are the most frequently overlooked.

How many inventory turns should a parts department have?
About three turns a year is a solid target for most equipment dealerships, though it varies by segment. Turns should be read alongside gross profit margin and fill rate, since a department can post good margins while turning inventory far too slowly.

Why does obsolete inventory hurt my dealership?
Parts are cash. Inventory that doesn't move is money already spent, sitting in a form you can't spend again. It ties up capital, reduces the department's ability to contribute to dealership overhead, and takes shelf space away from parts that would actually sell.

How do fill rate and obsolescence relate?
They pull against each other. Stocking more deeply raises fill rate while slowing inventory turns and increasing obsolescence risk. Stocking leaner improves turns but sends customers elsewhere when parts aren't available. Managing both simultaneously is the actual job.

How do I prevent obsolete inventory from building up?
Tie stocking decisions to demand rather than habit. A common rule is to begin stocking a part after three unique customer requests in a year and stop when demand drops below two. Reviewing no-movement reports regularly, rather than once at year-end, keeps small problems from compounding.

Sara Hey