TH400 Reaction Shell, used and ready to install. Fits the TH400. Ships fast from the USA.
This TH400 reaction shell is ready to install, so when the unit in your transmission is worn out you install a known-good part instead of chasing the failure piece by piece. In the TH400 the reaction shell is a direct-fit service part, and a tired one shows up as common wear failures.
It fits the TH400 and ships from the USA. Confirm your year and application against your own vehicle before installing — the TH400 ran across several updates, and matching the correct revision is what keeps the shift quality right.
| Fits | TH400 |
| Part type | Reaction Shell |
| Condition | Used |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
