2004 Monaco Diplomat problems & recalls
NHTSA recalls and owner complaints for the 2004 Monaco Diplomat.
Body type
- Incomplete - Motor Home Chassis · Not Applicable: 3 of 3 decoded VINs
Decoded with NHTSA vPIC from the partial VINs owners included in complaints.
Recalls filed by Monaco
Engine And Engine Cooling #04V441000 · 2004 · 1,189 units
Problem: On certain motorhomes equipped with cummins engines, oil can leak into the engine compartment from a crack in the cup plug.
Risk: Oil leakage on a hot engine can result in an engine compartment fire, possibly resulting in injuries.
Fix: Cummins is conducting the owner notification and remedy for this campaign. Cummins will install a steel cup plug boss cap to all affected engines. Owners should contact cummins customer assistance center at 1-800-343-7357 or Monaco at 1-800-685-6545.
Recalls can cover only some VINs. Check yours at nhtsa.gov/recalls.
Check a VIN: vehicle history report
Shopping for a used 2004 Monaco Diplomat? Run the 17-character VIN to see title records, salvage and junk history, odometer readings and past sales before you buy.
The VIN is on the driver-side dashboard (seen through the windshield), the door jamb sticker, or the title and registration. Reports are provided by VinAudit, which opens in a new tab. Heads up: we may earn a commission if you buy a report, at no extra cost to you. Disclosure
What owners complain about
Components named in 4 NHTSA owner complaints. Complaints are unverified.
Fix it, equip it, or try one first
Replacement parts for the systems owners report most: water, LP gas, slide-outs, electrical.
RV makers post owner manuals free; chassis service manuals (Ford, Freightliner) are sold separately.
Rent one from an owner to test it on a real trip.
Heads up: we may earn a commission if you buy through these links, at no extra cost to you. Disclosure
Specs
Specs coming soon. We only publish specs taken from the manufacturer's own brochures and spec sheets.
Other years
FAQ
Does the 2004 Monaco Diplomat have recalls?
NHTSA lists 1 recall filed by Monaco for the 2004 Diplomat. Check your VIN at nhtsa.gov/recalls to see if a fix is still open.
What are the most common 2004 Monaco Diplomat problems?
In 4 owner complaints filed with NHTSA, the most-named area is visibility.