TH125 [80-UP] Automatic Transmission Washer Kit

Getting the thrust washers right in a 3T40 unit is not a detail to overlook: worn or incorrect washers throw off end-play specs and accelerate wear on every rotating component downstream. This washer kit is built specifically for the 3T40, also cataloged as TH125, covering units from 1980 forward.

At REMCO, kits like this one are. Every washer kit is assembled at the REMCO facility, part by part, and verified against its own itemized parts list before it ships. That list travels inside the box so the technician at the bench knows exactly what arrived and can check it against what the job calls for.

This is a washer kit, not a full overhaul kit. It does not include clutch friction discs, steel reaction plates, seals, gaskets, Automatic Transmission Filter, or band. If your automatic transmission job requires those components, they need to be sourced separately. Ordering the right combination starts with knowing exactly what you already have on the bench and what the unit still needs.

The 3T40 ran in a long production window starting in 1980, and unit configuration can vary across that span. Before placing the order, confirm that the code stamped on the transmission case reads 3T40, and cross it against your build date. REMCO has worked in automatic transmission parts since 1991, and the most common reason a part does not fit is a unit code that was not verified before the order was placed. Shipped weight is 1 lb.

• Restoring proper end-play control in a worn 3T40 helps avoid premature bearing failure and keeps the geartrain from walking under load.
• This listing covers the washer kit only. It does not include clutch discs, steel plates, seals, gaskets, Automatic Transmission Filter, or bands. Check your full parts list before ordering.
• Each washer kit is assembled here at REMCO by hand, piece by piece, and checked against its own parts list before the box is sealed. Nothing is pre-packaged off a shelf.
• Contents: thrust washer set for the 3T40 TH125 unit. Shipped at 1 lb. Count and part numbers are listed on the included sheet inside the box.
• Before ordering, confirm your transmission code is 3T40 and that your build date falls within the 1980-and-up range. Wrong unit code means wrong fit.

What's in the box

• 1 x Thrust Washer Kit, TH125 Kit

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].