Aftermarket, Field Service & Service Parts calculator

Aftermarket Revenue per Installed Unit Calculator

Aftermarket revenue per installed unit helps OEMs and distributors understand how much parts, service, consumables, and contract revenue the fielded population is generating. It is useful for comparing product families, regions, dealers, or lifecycle stages.

What this calculator does

  • Estimate aftermarket revenue from installed units, revenue per unit, attach or capture share, and fixed revenue adjustment.
  • an aftermarket sales manager needs to estimate revenue potential from the active installed base
  • Returns estimated aftermarket revenue from an installed-unit population.

Formula used

  • Captured aftermarket revenue = active installed units × revenue per unit × revenue capture share
  • Aftermarket revenue estimate = captured revenue + fixed revenue adjustment

Inputs explained

  • Active installed units: undefined
  • Aftermarket revenue per unit: undefined
  • Revenue capture share: undefined
  • Fixed aftermarket revenue adjustment: undefined

How to use the result

  • Use it for parts revenue planning, service program targeting, dealer performance, and lifecycle revenue reviews.
  • It depends on installed-base accuracy, customer usage, competitive parts leakage, warranty status, and service contract penetration.

Common questions

  • What information do I need for aftermarket revenue per installed unit? You need installed unit count, revenue per unit, revenue capture share, and any fixed adjustment.
  • Which units or time period should I use for aftermarket revenue per installed unit? Use the units shown next to each input and keep all counts, costs, service calls, installed-base records, and labor hours in the same planning period. Convert mixed periods such as weeks, months, quarters, or years before entering the values.
  • What does the aftermarket revenue per installed unit result tell me? It estimates revenue available or captured from the installed base.
  • When is this aftermarket revenue per installed unit estimate only approximate? Use it to target accounts, adjust parts pricing, expand contracts, or compare dealer and regional aftermarket performance.

Last reviewed 2026-05-12.