Kenworth T400 — Electrical
High risk
Nov 7, 2014
Model years: 2015
On certain vehicles, an undersized wire in the trailer stop lamp circuit of the instrument panel harness is susceptible to thermal cycling which may cause damage to the wiring. Thi
Also affects: Kenworth C500, Kenworth T660, Kenworth T800, Kenworth W900
Kenworth T400 — Electrical
High risk
Jul 23, 2013
Model years: 2010, 2011, 2012
On certain trucks, the alternator wiring may come into contact with the exhaust manifold, which could result in a fire causing injury and/or damage to property. Correction: Dealers
Also affects: Kenworth T440, Kenworth T450, Kenworth T470
Kenworth T400 — Powertrain
High risk
Aug 21, 2012
Model years: 2013
On certain trucks, the driveshaft attachment bolts may not have received adequate tightening torque during vehicle assembly. Should the fasteners loosen and fall out, a driveshaft
Also affects: Kenworth T600, Kenworth T700, Kenworth T800, Kenworth W900
Kenworth T400 — Suspension
High risk
Aug 19, 1997
Model years: 1995, 1996, 1997
NOTE: VEHICLES EQUIPPED WITH AIRGLIDE 200 REAR SUSPENSION. DUE TO THE MATERIALS USED IN THE SWAY BAR ARMS AND THE STUDS AS WELL AS THE STUD PLATING, A COMBINATION OF STRESS CORROSI
Also affects: Kenworth T2000, Kenworth T600, Kenworth T800, Kenworth W900
Kenworth T400 — Lights And Instruments
High risk
Apr 10, 1996
Model years: 1996
NOTE: VEHICLES EQUIPPED WITH FEDERAL MOGUL SIGNAL-STAT TURN SIGNAL SWITCHES. THE WIRES THAT CORRESPOND TO THE VEHICLE'S REAR TURN SIGNALS MAY HAVE BEEN REVERSED WHEN INSTALLED IN T
Also affects: Kenworth C500, Kenworth K100, Kenworth T600, Kenworth T800, Kenworth W900
Kenworth T400 — Visual System
High risk
Jun 11, 1991
Model years: 1989, 1990, 1991
THE SPRAGUE WIPER ASSEMBLY PIVOT CAN SEIZE DUE TO GALVANIC CORROSION BETWEEN THE ZINC-PLATED STEEL SHAFT AND THE BRONZE BUSHING CAUSING THE WIPER ARM/BLADE ASSEMBLY TO STOP WIPING
Also affects: Kenworth C500, Kenworth T450, Kenworth T600a, Kenworth T800, Kenworth W900b
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