How many recalls does the 2004 Peterbilt 378 have?

The 2004 Peterbilt 378 has 3 NHTSA safety recall campaigns on record.

How do I check if my 2004 Peterbilt 378 has an open recall?

Enter your 17-character VIN at NHTSA's official recall lookup (nhtsa.gov/recalls) to see open, unrepaired recalls for your specific vehicle. Recall repairs are free.

What do owners complain about most on the 2004 Peterbilt 378?

Of 1 NHTSA complaints on file, the most-reported component is engine and engine cooling.

2004 Peterbilt 378 Recalls

Recalls on record Updated July 2026

The 2004 Peterbilt 378 has 3 NHTSA recall campaigns affecting an estimated 31,574 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 1 complaint with NHTSA, most often about the engine and engine cooling. Last updated July 5, 2026.

Recall campaigns

EQUIPMENT 13V593000 2013-11-25 561 affected

Defect

Paccar Incorporated (Paccar) is recalling certain 2004-2013 Peterbilt 379, 357, 378, 367, 388, 365, 389, 385 and 386 trucks manufactured from April 3, 2003, through October 25, 2013 and equipped with tri-drive rear axles and a tag or pusher axle. The affected vehicles may be missing required information from the…

Consequence

As a result, the axles may be overloaded or the wrong tires could be installed or the tires could be improperly inflated. All of these issues increase the risk of a crash.

Remedy

Peterbilt will notify owners and dealers will inspect and replace the certification labels missing the necessary information. The recall is expected to begin in January 2014. Customers can contact Peterbilt at 1-940-591-4000. Peterbilt's number for this campaign is 1113-F.

SERVICE BRAKES, AIR 07V044000 2007-02-12 18 affected

Defect

ON CERTAIN NON-ABS EQUIPPED TRUCKS, AN AIR HOSE BETWEEN THE TRACTOR PROTECTION VALVE AND THE BACK OF THE CAB BULKHEAD WAS OMITTED.

Consequence

THE ABSENCE OF THIS AIR HOSE COULD ADVERSELY AFFECT THE DRIVE AXLE BRAKE PERFORMANCE WHILE A TRAILER IS BEING PULLED, RESULTING IN LONGER STOPPING DISTANCES, INCREASING THE RISK OF A CRASH.

Remedy

PETERBILT WILL INSPECT THE AIR HOSE PLUMBING OF THE DRIVE AXLE BRAKE SYSTEM AND MAKE THE NECESSARY REPAIRS. THE RECALL BEGAN ON FEBRUARY 22, 2007. OWNERS MAY CONTACT PETERBILT AT 1-940-591-4196.

ENGINE AND ENGINE COOLING 05V570000 2005-12-22 30,995 affected

Defect

ON CERTAIN TRACTORS EQUIPPED WITH CATERPILLAR DIESEL ENGINES, THE VARIABLE VALVE ACTUATION OIL LINE MAY WEAR AGAINST THE SHARP EDGE OF THE CYLINDER HEAD IF NOT POSITIONED CORRECTLY.

Consequence

THE OIL LINE MAY BE CUT ON THE CYLINDER HEAD CAUSING AN OIL LEAK AND A POSSIBLE FIRE.

Remedy

CATERPILLAR, IN CONJUNCTION WITH PACCAR, WILL BE CONDUCTING THE OWNER NOTIFICATION AND REMEDY FOR THIS CAMPAIGN FREE OF CHARGE. OWNERS MAY CALL CATERPILLAR AT 309-675-6496, KENWORTH AT 425-828-5440, OR PETERBILT AT 940-591-4201.

Complaints by component

ENGINE AND ENGINE COOLING:COOLING SYSTEM

Total complaints1

What owners report

Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.

“Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6) low engine heat and coolant leaking from oil cooler, started on cold day back december 14th 2009, took truck to dealership. Wanted oil cooler resealed and two thermostats replaced. Vehicle has third party…”

ENGINE AND ENGINE COOLING:COOLING SYSTEM · reported 2009-12-14

Sources & methodology

Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2004 Peterbilt 378 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.