Will Raceseng billet cam (block-off) plate with O-ring seal fit a Toyota 86 / Subaru BRZ / Scion FR-S (ZN6/ZC6, 2013-2020)?
Added · Updated
Short answer: Yes, reportedly Limited
Verdict:Fits Limited confidence (1 of 3) · 2 sources
Yes, reportedly: Owners with the common rear cam-plate oil seep report the Raceseng billet plate, which seals with an O-ring, as a lasting fix.
| Part | Raceseng billet cam (block-off) plate with O-ring seal |
|---|---|
| Vehicle | Toyota 86 / Subaru BRZ / Scion FR-S (ZN6/ZC6, 2013-2020) |
| Years | 2013-2020 |
| Trim / condition | manual-transmission cars |
| Verdict | Fits Reported to fit |
| Confidence | Limited 1 of 3 — Forum, Reddit or anecdotal report, or ambiguous/partial detail. Treat as a lead to research. |
| Last verified | 2026-10-26 (date the cited sources were last read) |
Details
Owners with the common rear cam-plate oil seep report the Raceseng billet plate, which seals with an O-ring, as a lasting fix. Others simply reseal the factory plate or have the dealer do it under warranty. Subaru's bulletin puts this block-off plate on manual cars only; automatics have a vacuum pump there.
Specs
- applies to: manual-transmission cars (automatics have a vacuum pump in that spot per Subaru)
Related known issues
Related build entries
More for this car
- All Toyota 86 / Subaru BRZ / Scion FR-S (ZN6/ZC6, 2013-2020) fitment answers · ZN6/ZC6 common problems
- Newsletter archive: past issues with every new and corrected entry
Sources
- Cam Plate Leak Repair — FT86CLUB (forum) (forum thread; read 2026-10-26; full page read)
- Subaru service bulletin 02-136-12R: Oil Seepage Diagnosis and Repair Procedures (2013-20MY BRZ; rev. 06/29/23) — Subaru of America (bulletin hosted by NHTSA) (mfr spec; read 2026-10-26; full page read)Bulletin lists the block-off plate (M/T) or vacuum pump (A/T) sealing surface as a seepage point.
Summaries are in our own words. Fitment is not guaranteed — disclaimer.
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