For heavy-duty diesel repair shops, parts aren’t just a cost - they’re a profit engine. But too often, they’re also a liability: either sitting idle on shelves or causing costly delays when not in stock. In an industry where every day of downtime costs a fleet $800 to $1,000, and excess inventory burns 20% to 30% of its value annually, it’s time to stop guessing and start using data.
In this blog, we’ll break down how independent and mid-sized diesel shops can use their own repair history to stock smarter, reduce waste, and drive real ROI - with the help of tools like ShopView.
Every hour a truck waits on parts is money lost - for you and the customer. According to TruckingInfo, fleets lose up to $1,000 per truck, per day of downtime. And those shelves full of untouched filters, brake pads, or sensors? They quietly bleed 20% to 30% of their value per year through storage, aging, and obsolescence.
Missed tech hours stack up fast, too. One shop found that just 15 minutes of unbilled time per tech, per day added up to $8,000 in lost revenue per year. And all too often, the culprit was parts not being ready when the wrench is.
The fix isn’t magic. It’s management - with better data.
Instead of running inventory off a whiteboard or spreadsheet, let your actual work orders do the heavy lifting. Shops using ShopView track every part used on every job. Over time, this builds a goldmine of data.
Here’s what to look for:
ShopView users can pull reports in one click to show the most-used parts by job type, bay, technician, or time period. That means no more guesswork. If 80% of your Kenworth brake jobs use the same seals, you’ll know - and stock up before trucks show up.
Once you have the right data, put it to work with these inventory best practices:
One ShopView user slashed thousands in dead stock by identifying slow movers and tightening reorders. Another added $2,000/week in billable labor by always having the right parts in reach.
Inventory isn’t just about what’s on the shelf - it’s about what’s about to break. Modern shops plug in data from DVIRs, telematics, and fault codes to predict repair needs.
With ShopView:
This gives you a heads-up on what parts you’ll need before the truck hits the bay. That means faster turnaround, fewer emergency orders, and higher customer trust.
Dealers may have access to OEM parts, but they can’t beat independent shops on speed, flexibility, or cost. Your parts room is your battlefield.
By using repair history and cloud tools like ShopView:
One ShopView client noted their dead-stock cleanup alone saved "tens of thousands" annually. Another reported a 20% productivity bump just from techs not waiting on parts.
The numbers don’t lie:
And it’s not just efficiency - it’s peace of mind. No more lost filters, handwritten orders, or guessing what’s on hand.
Your parts data is talking. Are you listening?
Use ShopView to:
Start a free trial or book a demo today and see what smarter stocking can do for your bottom line.