TH125 [80-UP] Automatic Transmission Ring Kit

A worn sealing ring leaks only while the shaft turns, which is why the leak never shows on the bench.

TH125 ring kit. The rings are sized to the groove and bore they run in, which keeps leakage inside the design limit.

Groove width sets whether the ring can seat against its side. Shipping weight is 1 lb.

The parts list below is exactly what ships. Compare it against your teardown before ordering.

REMCO has supplied automatic transmission parts since 1991, and every order ships with its part listing so the receiving technician can check what arrived against what was ordered.

• Replacing worn sealing rings stops internal leaks that cause pressure loss and delayed shifts in 3T40 and TH125 units.
• This listing covers sealing rings only. It does not include clutch discs, steels, Automatic Transmission Filters, gaskets, or bands. Check your parts list before ordering.
• Sealing rings are the exact pieces that maintain hydraulic pressure across circuits inside the unit. A bad ring cannot be patched, only replaced.
• Contents: sealing ring set for 3T40 / TH125 applications. Packaged and verified against the included parts list. Weight: 1 lb.
• Before ordering, confirm your unit code is 3T40 or TH125 and that your build year falls within 1980 to 1993. Year and unit code both must match.

What's in the box

• 1 x Ring Kit, TH125

Compatible vehicles

• Fits Century [82-84], Skylark [80-84], Cimarron [82-84], Cavalier [82-84], Celebrity [82-84], Cutlass Ciera [82-84], Firenza [82-84], 6000 [82-84], Fiero [84], Phoenix [80-84], Sunbird / 2000 [80-84], Skyhawk [82-89].