Aftermarket, Field Service & Service Parts worked example

Aftermarket Program ROI Payback with aftermarket program investment of 92,500 $: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop aftermarket program investment to 92,500 $, then walk the calculation through step by step. Estimate payback for an aftermarket initiative from program investment, annual savings or margin lift, and annual support cost.

The inputs for this scenario

  • Aftermarket program investment: 92,500 $ (the input this scenario stresses; the baseline uses 185,000)
  • Annual savings or margin lift: 92,000 $ / yr (held at the documented default)
  • Annual program support cost: 18,000 $ / yr (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Net annual aftermarket benefit = annual savings or margin lift - annual program support cost.
  • Aftermarket ROI payback works out to 1.25 yr payback at these inputs, and this is the headline figure for the scenario.
  • Net annual aftermarket benefit works out to 74,000 $ / yr at these inputs.
  • Aftermarket program investment works out to 92,500 $ at these inputs.
  • Five-year aftermarket net value works out to 277,500 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where aftermarket program investment sits at 185,000 $ and the headline result is 2.5 yr payback, this scenario comes in 50% below the baseline at 1.25 yr payback.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to aftermarket program investment, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. Simple payback ignores the time value of money, so a 2.5-year result is not the same as a discounted NPV or IRR; use it as a screening gate, not the final investment decision.

Results at a glance

  • Aftermarket ROI payback: 1.25 yr payback (headline result)
  • Net annual aftermarket benefit: 74,000 $ / yr
  • Aftermarket program investment: 92,500 $
  • Five-year aftermarket net value: 277,500 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Aftermarket Program ROI Payback calculator, set aftermarket program investment to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.