Category price index
Cylinders
Starts at 100 in March 2026
Index level
111.7
+11.7%
since March 2026
as of October 2026
- 1 month
- +0.9%
- 3 months
- +14.4%
- 12 months
- —
Price barometer
High price
Now · 111.7
Low 97.6
High 111.7
Where the index sits between its lowest and highest level so far.
What this index is built from
- Parts tracked
- 54
- Parts with price history
- 52
- Parts moving the index
- 47
- Monthly price points
- 565
- Asking prices seen
- 1152
How to read this index
The level starts at 100. 110 means the parts in this index cost about 10% more than at the start; 95 means about 5% less.
It follows price changes, not price levels: each month it moves by the typical change of the parts that were priced both that month and the month before, so a few very expensive parts never dominate it, and parts coming and going don't move it on their own.
1, 3 and 12 months show the change over that period. The barometer shows where today's level sits between the index's lowest and highest point.
Month by month
| Month | Index level | Change | Parts priced |
|---|---|---|---|
| October 2026 | 111.7 | +0.9% | 11 |
| September 2026 | 110.7 | 0.0% | 5 (too few) |
| August 2026 | 110.7 | +13.4% | 25 |
| July 2026 | 97.6 | -8.2% | 55 |
| June 2026 | 106.4 | +6.4% | 42 |
| May 2026 | 100.0 | -0.4% | 43 |
| April 2026 | 100.4 | +0.4% | 53 |
| March 2026 | 100.0 | Start (100) | — |