Maintenance & Reliability worked example

Asset Replacement Payback with replacement project cost of 1,625,000 $: a worked example in maintenance & reliability

This scenario runs the asset replacement payback calculation on the strong side: replacement project cost of 1,625,000 $, with every other input held at its documented default. Use it when an old asset is consuming too much maintenance spend and downtime, and replacement needs a simple capital-screening case.

The inputs for this scenario

  • Replacement project cost: 1,625,000 $ (raised for this scenario; the documented default is 650,000)
  • Annual avoided maintenance and downtime cost: 240,000 $ / yr (unchanged)
  • Annual support cost for new asset: 40,000 $ / yr (unchanged)

Working through the calculation

  • Applying the documented formula (Net annual savings = annual avoided maintenance and downtime cost - annual support cost for new asset) to the inputs above produces each figure below.
  • At this operating point the engine returns 8.13 yr for replacement payback period, the number this scenario is built around.
  • At this operating point the engine returns 200,000 $ / yr for net annual savings.
  • At this operating point the engine returns 1,625,000 $ for replacement investment.
  • At this operating point the engine returns -625,000 $ for five-year net benefit.

How this compares with the baseline

  • Against the tool's baseline example, where replacement project cost sits at 650,000 $ and the headline result is 3.25 yr, this scenario comes in 150% above the baseline at 8.13 yr.
  • Use it when an aging machine's maintenance and downtime costs are climbing and you need to justify a replacement against continued repair. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Replacement Payback Period: 8.13 yr (headline result)
  • Net Annual Savings: 200,000 $ / yr
  • Replacement Investment: 1,625,000 $
  • Five-Year Net Benefit: -625,000 $

Run it with your numbers

  • Every input above is editable in the live Asset Replacement Payback calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.