2004 Workhorse W20
Only 7 complaints on file — too few for a fair verdict.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
Only 7 complaints on file — too few for a fair verdict. The data below is complete but unranked.
COMPLAINTS PER YEAR
View as data table
| Year | Complaints |
|---|---|
| 2000 | 1 |
| 2001 | 2 |
| 2002 | 6 |
| 2003 | 11 |
| 2004 | 7 |
| 2005 | 3 |
| 2006 | 3 |
| 2007 | 0 |
| 2008 | 0 |
KNOWN PROBLEM AREAS
Only 7 complaints on file for this model year -- too few to rank by share. Raw counts only, below.
3 of 7 total reports mention: service brakes, hydraulic.
1 of 7 total reports mentions: wheels.
1 of 7 total reports mentions: visibility.
1 of 7 total reports mentions: service brakes, hydraulic.
Show complaint excerpts
THIS IS A BRAKE FAILURE ON ,MY 2004 ALLEGRO MOTORHOME BUILT ON A W-20 CHASSIS MANUFACTURED BY WORKJORSE CUSTOM CHASSIS. ON THE DATE IN QUESTION, THE RIGHT REAR BRAKE LOCKED UP AND OVERHEATED. THE LEFT REAR BRAKE OVERHEATED.
NHTSA ODI report, 20070913
1 of 7 total reports mentions: service brakes, hydraulic.
Show complaint excerpts
DRIVING RV NORMALLY ABOUT 40 MPH WHEN REQUIRED TO STOP. BRAKE PEDAL WENT TO THE FLOOR. PUMPED VIGOROUSLY AND GOT A SMALL AMOUNT OF PEDAL. WHEN UNIT COOLED, WAS ABLE TO DRIVE SLOWLY FOR REPAIR.
NHTSA ODI report, 20070904
SAFETY TIMELINE
ON CERTAIN MOTOR HOME AND TRUCK CHASSIS EQUIPPED WITH GENERAL MOTORS 8.1L V8 ENGINES, IMPROPER HARDENING DURING THE HEAT TREATMENT PROCESS CAN CAUSE THE FUEL RAIL PULSE DAMPER RETAINER CLIP TO FRACTUR
Remedy: DEALERS WILL REPLACE THE FUEL RAIL PULSE DAMPER RETAINER CLIPS ON THESE ENGINES FREE OF CHARGE. THE RECALL BEGAN ON SEPTEMBER 1, 2006. OWNERS MAY CONTACT WORKHORSE AT 877-294-6773.
Campaign 06V225000 — check if this car was fixed
OVERHEATED BRAKE CALIPERS
OVERHEATING DISC BRAKE CALIPER
NAVISTAR IS RECALLING CERTAIN MODEL YEAR MY 2001-2008 WORKHORSE W20, W21 AND W22 CHASSIS AND CERTAIN MODEL YEAR 2009 THROUGH 2011 MONACO RV ADMIRAL, ARISTA, MONARCH, AND RIPTIDE RECREATIONAL VEHICLES
Remedy: WORKHORSE DEALERS WILL REPLACE ALL FOUR BOSCH BRAKE CALIPER ASSEMBLIES FREE OF CHARGE. THE SAFETY RECALL BEGAN ON SEPTEMBER 16, 2010. OWNERS MAY CONTACT WORKHORSE AT 1-877-246-7731.
Campaign 09V110000 — check if this car was fixed
BUY-SMART CHECKLIST
2004 Workhorse W20 — pre-purchase inspection
- Test/inspect for service brakes, hydraulic issues (3 reports on file for this year).
- Test/inspect for wheels issues (1 reports on file for this year).
- Test/inspect for visibility issues (1 reports on file for this year).
- Verify recall 06V225000 (engine and engine cooling) has been completed.
- Verify recall 09V110000 (service brakes, hydraulic) has been completed.
FAQ
Is the 2004 Workhorse W20 reliable?
There isn't enough NHTSA complaint data on file yet to give this model year a verdict.
What are the most common problems with the 2004 Workhorse W20?
The most-reported component is service brakes, hydraulic, accounting for 43% of complaints on file.
How many recalls does the 2004 Workhorse W20 have?
2 recalls on file for this model year.
Data updated 2026-07-11 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.