Caterpillar 3406e
Owners filed 2 complaints across 2 model years of the Caterpillar 3406e. The 1999 drew the most (2); the 1999 the fewest (2).
Model years2
Complaints2
Recalls2
Fires0
Deaths0
Which Caterpillar 3406e years should you avoid?
On raw complaint volume the 1999 is the weakest year on record, with 2 complaints concentrated in the engine and engine cooling › engine › diesel. It carries 1 recall.
Read these numbers with sales volume in mind. A model year that sold in huge numbers naturally accumulates more reports than a rare one, and older cars have had more years to fail. The stronger signal is the severity columns and whether the same component keeps coming up year after year.
Data: NHTSA complaint and recall files, September 2026. Complaints are unverified owner reports.