Producer Price Index for aircraft engines and engine parts.
Paste straight into Excel, Google Sheets or an email. Spreadsheet format lands as two columns.
| Month | Value | Change m/m |
|---|---|---|
| Sep 2026 | +0.0% | |
| Aug 2026 | −0.4% | |
| Jul 2026 | −0.0% | |
| Jun 2026 | +0.5% | |
| May 2026 | +0.1% | |
| Apr 2026 | +0.1% | |
| Mar 2026 | +0.2% | |
| Feb 2026 | +0.0% | |
| Jan 2026 | +0.1% | |
| Dec 2025 | +0.3% | |
| Nov 2025 | +0.2% | |
| Oct 2025 | +0.0% | |
| Sep 2025 | +0.5% |
Same numbers as the chart, straight from BLS. Dates are the first of each period, the way BLS reports them.
Aircraft engines rose 1.2% over the last 12 months, but all of its main inputs rose faster: steel mill products +27.6%, nickel and nickel-base alloy mill shapes +10.6%. That cost pressure may still pass through to prices.
Transportation equipment mfgAerospace product and parts mfg
A starting point citing this series by name and code. Replace the bracketed terms with your contract's actual scope before use.
The [affected portion] of the Contract Price shall be adjusted using US PPI — Aircraft Engine and Engine Parts Manufacturing (BLS series PCU336412336412), published by BLS. Base Period: the index value published for September 2026 (or the month of contract signing, if different) is the Base Value. Adjustment: at each Adjustment Date, the Current Value is the most recently published three-month average of the index (the Averaging Window). The Escalation Factor equals Current Value divided by Base Value. Cap: the Escalation Factor applied under this clause shall not exceed 1.10 or fall below 0.90 (a 10% cap and floor) in any single Adjustment Date, regardless of the index's actual movement. [Replace bracketed terms with your contract's actual affected-portion definition and adjustment-date schedule before use. This is a drafting starting point, not legal advice.]
The largest single weight in most aircraft equipment and spare-parts escalation composites, engine overhaul is where aftermarket spend concentrates.
New aircraft are escalated with a labor and inflation formula, not a manufacturing PPI: 65% Employment Cost Index (manufacturing, CIU2013000000000I) plus 35% CPI-U (CUUR0000SA0), measured against base-year values and applied at delivery. Spare parts have no series built for them, so price them from a weighted input composite instead.
Escalake tracks US PPI — Aircraft Engine and Engine Parts Manufacturing, applies your formula, and gives both sides a number they can confirm, no spreadsheet required.