TSB 18-243-26 — Subaru Service bulletin
18-243-26 is a service bulletin on file with NHTSA for 4 Subaru models, 2026 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This bulletin announces the elimination of oil spacers from both left- and right side camshaft carriers on FB2.5 engines.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 18-243-26 names
| Vehicle | Model years |
|---|---|
| Subaru Crosstrek | 2026 |
| Subaru Forester | 2026 |
| Subaru Impreza | 2026 |
| Subaru Outback | 2026 |
Every document filed under 18-243-26
| Document ID | Filed | Type |
|---|---|---|
| 18-243-26 | June 11, 2026 | Service bulletin |
What 18-243-26 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 18-243-26?
18-243-26 is a service bulletin filed with NHTSA by Subaru, covering 4 Subaru models across the 2026 model years. NHTSA's summary reads: This bulletin announces the elimination of oil spacers from both left- and right side camshaft carriers on FB2.5 engines.
Which vehicles does 18-243-26 cover?
NHTSA's file names Subaru Crosstrek (2026); Subaru Forester (2026); Subaru Impreza (2026); Subaru Outback (2026). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB 18-243-26 a recall, and is the repair free?
No. 18-243-26 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of 18-243-26?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 18-243-26, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 18-243-26. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.