Financial research concept

Aerospace Components Commercial Aftermarket Sales Mix

measures the share of TransDigm net sales generated by commercial and non-aerospace aftermarket customers.

By Lee BaileyPublished Oct 2, 2026

Research context

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Research date: Oct 2, 2026Use the dated article and cited sources for the definition, examples, and stated limitations.
Operating-model context: 10 connected conceptsPart of the reviewed Aerospace Components Aftermarket & OEM Economics; issuer definitions remain distinct where disclosed.
Company examples: 1 reviewed companyRelationships reflect supported examples, not a normalized cross-company KPI ranking.

Aftermarket economics differ from OEM economics
Mix can affect margin conversion
Part of the Aerospace Components Aftermarket & OEM Economics
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Aerospace components commercial aftermarket sales mix measures commercial and non-aerospace aftermarket sales as a percentage of TransDigm net sales.

TransDigm reported $908M of commercial and non-aerospace aftermarket sales in the fiscal third quarter of 2026, equal to about 33.1% of total net sales.

Aftermarket economics differ from OEM economics

Aftermarket demand is tied more directly to the installed aircraft base, utilization, maintenance activity, and replacement cycles.

Commercial OEM sales are more closely tied to aircraft production rates and deliveries.

Mix can affect margin conversion

TransDigm said a higher commercial aftermarket sales mix helped lower cost of sales as a percentage of net sales, excluding acquisition dilution.

Read it with commercial OEM sales mix and total EBITDA As Defined margin.

Primary source: TransDigm fiscal Q3 2026 Form 10-Q.

Part of the Aerospace Components Aftermarket & OEM Economics

Connects TransDigm organic versus acquisition growth, commercial aftermarket/OEM/defense channel mix, segment growth, and issuer-defined EBITDA As Defined margin conversion.

Browse the full operating model in Company Analysis →

Where this concept fits

Commercial and defense channel mixCurrent relationship
Commercial aftermarket, commercial OEM, and defense sales mix separate installed-base utilization demand, aircraft-production demand, and military procurement exposure.
Commercial Aftermarket MixCurrent conceptCommercial OEM Mix Defense Sales Mix
Organic and acquisition growth bridge
Organic sales growth isolates existing-business expansion while acquisition sales contribution explains the incremental reported growth from acquired businesses.
Acquisition Sales Contribution Organic Sales Growth
Segment growth and EBITDA conversion
Power & Control and Airframe sales growth show segment-level expansion, while segment and total EBITDA As Defined margins show how that mix converts into issuer-defined non-GAAP profitability.
Airframe EBITDA Margin Airframe Growth Power & Control EBITDA Margin Power & Control Growth Total EBITDA As Defined Margin

Acquisition Sales Contribution
Airframe EBITDA Margin
Airframe Growth
Commercial Aftermarket MixCurrent concept
Commercial OEM Mix
Defense Sales Mix
Organic Sales Growth
Power & Control EBITDA Margin
Power & Control Growth
Total EBITDA As Defined Margin

See It in Company Research

These companies are examples of how the concept is reported or discussed in public filings. Definitions can differ by issuer; these links open company research rather than a normalized metric comparison.

TDGOpen operating-model research →10 of 10 reviewed concepts in Aerospace Components Aftermarket & OEM EconomicsCommercial and defense channel mix3 of 3 bridge concepts supportedContinue through this bridge:Commercial OEM Mix Defense Sales Mix

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Compare aerospace component economics

Compare installed-base aftermarket exposure separately from OEM production and defense demand.

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