When clutch slippage or erratic shift behavior points to a worn friction module in an AT540-series unit, replacing that single component with the correct part stops the damage before it spreads to adjacent components. This listing is for one friction module, matched specifically to the AT540, AT542, AT543, and AT545 automatic transmission families, covering applications from 1970 forward.
Because this is a single-piece listing rather than a rebuild kit, it suits situations where the technician has already diagnosed the exact component at fault and does not need a full overhaul set. The article weighs 3 lb and is packaged individually. At the REMCO facility, every piece is checked against its part listing before the box is sealed, so what you receive matches what is described here.
REMCO has worked exclusively in automatic transmission parts since 1991, and the AT540 series is a well-documented application in that catalog. The friction module stocked under SKU corresponds to the AT540 model reference and covers the AT542, AT543, and AT545 variants as well.
This item does not include steel reaction plates, seals, gaskets, Automatic Transmission Filter, bands, or any other rebuild components. If your repair calls for those parts, they must be sourced separately. Before placing your order, locate the transmission identification tag on the unit and confirm the exact model code and year of the application. Ordering the wrong variant for a closely related unit can result in a fitment mismatch that delays the repair. Confirm the code matches AT540, AT542, AT543, or AT545 and that the year falls within the 1970-and-up range covered by this part.
- Restores clutch engagement in AT540, AT542, AT543, and AT545 units, addressing slipping or delayed shifts caused by a worn friction module.
- This listing covers one friction module only. It does not include steel plates, seals, gaskets, Automatic Transmission Filter, bands, or any other rebuild components. Review your parts list before ordering.
- Designed specifically for the AT540 series, this friction module matches the dimensional and material requirements of these units, avoiding fitment issues from mismatched parts.
- Contents: 1 friction module. Article weight: 3 lb. Packaged and verified individually against its part listing at the REMCO facility.
- Before purchasing, confirm the exact transmission model code on your unit (AT540, AT542, AT543, or AT545) and the year of application. This part covers [70-UP].
What's in the box
- 1 x Friction Clutch Pack, AT540 ALLISON A543 A545 Module
Compatible vehicles
- Fits B50 2 Ton School Bus [71-72], C3500 1 Ton - Pickup [88-00], C3500HD 1 Ton Truck [91-02], C40 1 1/2 Ton Truck [71-79], C80 2 1/2 Ton Truck [71-79], F80 2 1/2 Ton Tilt Cab [71-79], K3500 1 Ton 4WD - Pickup [88-00], P4T042 Stripped Chassis [80-84], P6S042 Stripped Chassis [91-96], P6T042 Stripped Chassis [83-90], R3500 1 Ton - Pickup [88-91], S50 1 1/2 Ton School Bus [73-79].
| at540 a543 a545 allison friction module Automatic transmission |
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