WenmarOpen by Wenmar Pro

Service bulletin 9004412

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10218451
Published by NHTSA2022-08-22
Manufacturer's number9004412
Manufacturer's date2021-08-25
NHTSA componentPOWER TRAIN:CLUTCH ASSEMBLY:MASTER CYLINDER; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER

NHTSA's summary

MASTER CYLINDER, Brake A new master cylinder reservoir has been made available that is backward compatible but not interchangeable with old parts as follows: 68144489AA MASTER CYLINDER (OLD) or 68144492AA RESERVOIR (OLD) should be replaced with 68285796AA MASTER CYLINDER AND 68285797AA RESERVOIR (NEW) in pairs and not individually.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes, Transmission and driveline, Brake master cylinder, Clutch

Vehicles listed
DODGE RAM 25002012 (the catalog's model; the bulletin names a series or trim of it)
RAM 25002013, 2014, 2015

Listing a model year does not mean every vehicle of it is concerned: the document says which.