key takeaways
If you only read 30 seconds of this article:
- The biggest MRO cost lever is not price negotiation; it is releasing the 50 to 60% of inventory that industry studies suggest is excess, obsolete, or slow-moving.
- Duplicate parts across systems inflate both inventory and spend, and resolving them cuts cost without touching a supplier contract.
- Cost reduction is only safe when it follows criticality; cutting the wrong stock trades a small saving for a large downtime bill.
- The scale is real: a Fortune 500 CPG manufacturer identified $63M and verified $60M across 41 sites, based on Verusen customer results.
MRO cost reduction
Short answer: MRO cost reduction delivers most when it targets inventory and data rather than supplier prices. The largest, safest savings come from releasing excess and obsolete stock, resolving duplicate parts that inflate both inventory and spend, and right-sizing stock by criticality, none of which requires a painful negotiation. Price negotiation and process efficiency help at the margin, but the step change comes from making the inventory legible and cutting the excess while protecting the critical few.
MRO cost reduction: Lowering the total cost of maintenance materials, purchase price, carrying cost, and downtime, primarily by removing excess and duplicate inventory rather than by squeezing unit prices.
Why the usual targets underdeliver
The instinct in MRO cost reduction is to attack unit price, renegotiate suppliers, consolidate spend, chase rebates. Those help, but they are small levers, because purchase price is a fraction of the total cost of an MRO program once you count carrying cost and downtime. The money is trapped in the inventory itself: parts bought and never used, the same part bought three ways, and critical parts under-stocked so a failure becomes an outage. Fixing that requires seeing the inventory clearly, which is what MRO inventory optimization does.
Reframing cost reduction from "pay less per part" to "own less waste and lose less uptime" is where the real numbers appear.
MRO cost reduction levers
Where the real savings are
Three inventory-side levers dwarf price negotiation, and none of them requires a supplier to say yes.
| Lever | Where the cost hides | Why it's large |
|---|---|---|
| Release excess & obsolete | 50-60% of MRO stock is excess/slow (industry studies) | Cash out immediately, no contract |
| Resolve duplicate parts | Same part bought under many numbers | Cuts inventory and spend at once |
| Right-size by criticality | Overstock on rare parts, understock on critical | Frees cash and prevents downtime |
| Rationalize the supplier tail | ~80% of suppliers carry ~20% of spend | Cuts transaction cost, not just price |
For the reduction mechanics, this guide to reducing excess and obsolete inventory and this MRO spares optimization guide are useful; the safe-cut discipline is in spare parts inventory reduction: safe vs risk.
Cutting cost without cutting uptime
The danger in any cost-reduction push is that a blunt cut removes the critical part whose absence stops the line, turning a small saving into a large loss. The safeguard is to reduce by criticality: release non-moving and duplicate stock freely, trim low-consequence overstock against real consumption, and hold or increase the critical and long-lead buffers. Because a single missing critical spare can cost as much as $260,000 per hour of downtime (Aberdeen Strategy & Research), protecting the critical few is itself a cost-reduction move.
The recovery is real and verified. A Fortune 500 CPG manufacturer identified $63M and verified $60M across 41 sites; a paper and packaging manufacturer identified $42M and verified $11M across six ERP instances, based on Verusen customer results, in both cases by cutting waste and duplication, not by squeezing suppliers.
| MRO inventory that is excess, obsolete, or slow-moving (industry studies) | 50-60% |
| CPG manufacturer: identified / verified, 41 sites | $63M / $60M |
MRO cost reduction results
How to run MRO cost reduction that lasts
Target the inventory and data levers first, protect the critical few, and make it continuous.
- Unify and de-duplicate materials across every ERP so excess and true spend are visible.
- Release non-moving and obsolete stock first, the fastest cash with no contract.
- Right-size the rest by criticality; hold the line-stop and long-lead parts.
- Rationalize the supplier tail to cut transaction cost, then negotiate price where it matters.
- Re-score on a cycle so savings do not drift back into excess.
Most customers reach a working solution in under 45 days, with no data cleanse required first, based on Verusen customer results. Then talk to an MRO expert to size your own MRO cost reduction.
Further reading: reducing excess and obsolete inventory, MRO spares inventory optimization guide, and spare parts inventory management guide.
Frequently asked questions
Releasing excess and obsolete inventory, not negotiating unit prices. Industry studies suggest 50 to 60% of MRO inventory is excess, obsolete, or slow-moving, so freeing that cash dwarfs the savings from a supplier negotiation and requires no contract.
Because purchase price is only a fraction of an MRO program's total cost once you count carrying cost and downtime. The money is trapped in the inventory, unused parts, duplicates, and under-stocked critical items, not in the unit price.
Reduce by criticality: release non-moving and duplicate stock freely, trim low-consequence overstock against consumption, and hold or increase critical and long-lead buffers. Because downtime can cost $260,000 per hour (Aberdeen), protecting the critical few is itself a cost move.
The same part bought under several item numbers inflates both inventory (you hold it many times) and spend (you buy it many ways). Resolving duplicates cuts cost on both fronts without touching a supplier contract.
It varies with waste and fragmentation, but the scale is real: a CPG manufacturer verified $60M across 41 sites and customers unlock significant working capital, based on Verusen customer results, primarily by cutting waste and duplication.
PN
- Jeremiah Woodford
- CRO, Verusen
Chief Revenue Officer (CRO) at Verusen AI – AI Built for Industry. Designed to Solve What Legacy Systems Can’t.
