First-Generation FR-S, BRZ and 86 Six-Speed Automatic Transmission Assembly Identification

Supported badge-specific service chains are Toyota/Scion SU003-03654 -> 35010-03654-84 and Subaru 30098AA050 -> 31009JB000. The shared TX6A8GD90A catalog marking is useful identification evidence but is not, by itself, authorization to substitute a Subaru, Scion, Toyota, JDM or second-generation donor. Torque converters SU003-03651 and 30098AA020 and TCM chains are separate components, not transmission-assembly supersessions.

Begin with the 17-character VIN, US badge/model year and confirmation that the car was built with the factory six-speed automatic. Photograph the installed case tag/service number, Toyota's transmission serial marking at the left rear of the case where documented for 2013-2014 FR-S A960E units, all external connectors, cooler ports, bellhousing, mount and output flange; require the same evidence from a donor. Toyota's catalog supports SU003-03654 for the checked Scion/Toyota span, while Subaru separately supports 30098AA050/31009JB000 for BRZ. Do not turn broad recycler interchange or the shared TX6A identity into an unsupported cross-badge or US/JDM claim. A transmission-only listing does not prove inclusion of the separately cataloged torque converter, TCM, shifter, external harness, cooler lines, mount, flexplate, propeller shaft, fluid or fasteners. Record donor VIN, mileage, test method, fluid/pan condition, case/port damage, warranty, freight/core terms and every included item. Installation requires secure vehicle support and a transmission-rated lifting method; follow current factory removal, converter seating, cooler/line contamination, specified fluid, fill-level and relearn procedures. Do not work under a vehicle supported only by a jack.

Checked replacement paths include Toyota reman service assembly 35010-03654-84, Subaru service assembly 31009JB000 and used/imported TX6A assemblies. No generic A960E from a Lexus or another Toyota application is accepted: bellhousing, case, calibration, connector, output and service identities must match the subject car. Recycler phrases such as 'fits FR-S/BRZ/86' or a bare 31009JB000 title are search leads only. Prefer a donor with readable tags, VIN and mileage, run-and-drive or dynamometer evidence, fluid/pan photos, written included-component list and usable freight/warranty terms.

US first-generation factory six-speed automatic cars only. Match VIN/badge, installed and donor service numbers, TX6A case tag/serial, connectors, cooler ports, bellhousing, mount and output before purchase. Toyota/Scion SU003-03654 -> 35010-03654-84 and Subaru 30098AA050 -> 31009JB000 are separate catalog service paths; their shared TX6A8GD90A identity does not prove every cross-badge or JDM donor. The torque converter, TCM, shifter, external harness, lines, mount, flexplate, propeller shaft, fluid and hardware are separate unless the seller documents inclusion. Require donor VIN/mileage/test evidence, inspect fluid and damage, confirm freight/core/warranty, and use trained help plus factory procedures for safe support, converter seating, cooler contamination, fill level and relearn.

Supersede reviewed 15 unique research sources for this guide. 5 also appear above as a seller or official action and are not repeated here; 10 additional citations follow.

Research last verified 2026-07-27.

1. Pressroom toyota — 2013 scion fr s brings sport back to carOpen source
2. NHTSA — MC 10109418 9999Open source
3. Toyotapartsdeal — transaxle or transmission assy gasket kit atmOpen source
4. Toyotapartsdeal — transaxle or transmission assy gasket kit atmOpen source
5. Subaru Parts Deal — automatic transmission assemblyOpen source
6. PartSouq — diagramOpen source
7. Toyotapartsdeal — torque converter front oil pump chain atmOpen source
8. Subaru Parts Deal — oem 2013 subaru brz torque converterOpen source
9. Toyotapartsdeal — switch relay computerOpen source
10. Toyotacertified — 2017 86 ebrochureOpen source