Aftermarket ROI calculator
Enter the figures you can read off your ERP. It takes about two minutes, and every estimate names where it comes from.
Pre-filled with a machine builder of about $300 million revenue. Replace with yours.
Parts margins average about 50% (BCG 2025); dealers earn 25–30%.
Your bought-in parts ({spend}) are more than your parts' cost of goods at this margin ({cogs}). Check the spend or the margin.
{inquiries} inquiries on {revenue} of parts revenue is {perMillion} per million. No published ratio exists; check one of the two.
Estimated one-year potential
Your result appears here.
Replace the example figures with yours, or keep them, and press Show my potential.
Most of it comes from {lever}.
The profit comes from {value} more parts revenue a year.
Extra profit plus savings in the first year, estimated from published figures and your inputs.
Example budget a year, replace it with yours. The multiple is this estimate against your own figure, not a Partium price.
They identify the part in your portal instead of calling the parts hotline.
Part questions your customers answer themselves
saving a year
Estimated. Aquant 2025: a third of service queries can be self-served; catalog vendors report half or more. At ENGEL, Partium Find in the parts portal brought fewer part-search hotline calls and more self-served transactions in the shop.
Wrong-part orders avoided
saving a year
not counted
Estimated. Catalog vendors report 20–50% fewer wrong-part orders once customers identify the part before ordering. The cost of a wrong order is your estimate.
A part they can identify becomes an order with you, not with someone else.
Orders placed in your own shop instead of elsewhere
profit a year
Estimated. McKinsey: a redesigned parts portal lifted revenue from existing customers 3% in year one and 10% in year two; catalog vendors report 3–5% more parts revenue. Counted at your parts margin.
See what competitors charge for the same spare part, and price every part you sell against the market.
Parts priced below the market
profit a year
Estimated. About one part in five sells below the market price; raised towards it with a cap per part, that is more parts revenue at today's volume. McKinsey: tracking price leakage lifted sales 3–5%; across ten industries, OEMs improve EBIT margins 3–10% by raising prices.
Parts nobody else lists a price for
profit a year
Estimated. About half of a machine builder's parts have no market price to compare against. BCG 2025: AI-supported value-based pricing lifted EBIT 3–4 points on spare-parts sales; McKinsey 2025: AI pricing adds 2–6% of sales to margin.
Buying the parts you resell at the market price
saving a year
Estimated. Partium platform claim: up to 37% lower procurement costs on the parts re-sourced, applied to the parts you buy in and resell. Ardent Partners 2024: best-in-class procurement saves 9.2% of all spend.
Parts priced above the market
Bringing them to the market price gives up price on those parts at today's volume. The orders it wins back show once the new prices run: BCG 2025 finds top performers sell 16 points more spare parts.
Where your lead time beats the market
Where you deliver faster than the shops that list the part, the price can follow. Where every shop has it in stock, it cannot. No published figure puts a number on it.
Each lever is your figure times a rate. The rates sit at the upper end of what has been published, and you can move every one. No figure is counted twice, and no figure on this page is a customer result.
Figures from Partium are published platform claims. Figures from analysts and studies are quoted at the upper end of their published range and marked estimated. Industry benchmarks are the ranges tools in this market use.
| Assumption | In use | Lever |
|---|---|---|
| Share of inquiries customers answer themselves | Part questions your customers answer themselves | |
| Share of wrong-part orders avoided | Wrong-part orders avoided | |
| Cost of a wrong order, share of its value | Wrong-part orders avoided | |
| More parts revenue in year one | Orders placed in your own shop instead of elsewhere | |
| More parts revenue from parts below market | Parts priced below the market | |
| More parts revenue from parts with no market price | Parts nobody else lists a price for | |
| Share of bought-in parts re-sourced at 37% less | Buying the parts you resell at the market price |
Try it out for yourself
See what Partium finds in the parts you sell: which prices sit below or above the market, which parts nobody else lists, and how your customers find a part in your portal.
Bring this page to a 30-minute call and we go through it lever by lever, or explore the application in a demo.
Do you buy and stock spare parts? Estimate it with the procurement and inventory ROI calculator.
Solution: Aftermarket & Service
Read more: Self-service spare parts ordering