Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 1 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Engine And Engine Cooling. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
1 reports
65,000 miles · Apr 11, 2007
Engine And Engine Cooling
TL*THE CONTACT OWNS A 1999 TIFFIN ALLEGRO BUS. THE CONTACT NOTICED A LOSS OF COOLANT IN THE CUMMINS ISB 275 ENGINE. THE DEALER STATED THAT THERE WAS A CRACKED ENGINE BLOCK, BUT DID NOT MAKE THE REPAIR. THE CONTACT SPOKE WITH THE MANUFACTURER OF THE ENGINE ,WHO STATED THAT THEY WOULD SUPPLY A BARE BLOCK TO REPAIR THE CRACK. T…
Read full complaint
TL*THE CONTACT OWNS A 1999 TIFFIN ALLEGRO BUS. THE CONTACT NOTICED A LOSS OF COOLANT IN THE CUMMINS ISB 275 ENGINE. THE DEALER STATED THAT THERE WAS A CRACKED ENGINE BLOCK, BUT DID NOT MAKE THE REPAIR. THE CONTACT SPOKE WITH THE MANUFACTURER OF THE ENGINE ,WHO STATED THAT THEY WOULD SUPPLY A BARE BLOCK TO REPAIR THE CRACK. THE VEHICLE WAS BROUGHT TO AN AUTHORIZED SERVICE CENTER FOR THE BARE BLOCK INSTALLATION. THERE HAVE BEEN NO OTHER FAILURES SINCE THE REPAIR. THE CURRENT AND FAILURE MILEAGES WERE 65,000.*AK
VEHICLE DESCRIPTION: MOTOR HOMES EQUIPPED WITH NORCOLD REFRIGERATOR COOLING UNITS MODEL NUMBERS N841, N821, N641, AND N621. THESE REFRIGERATORS CAN EXPERIENCE A COOLING SYSTEM LEAK CAUSED BY OPERATION IN THE AC ELECTRIC MODE. IF A LEAK OCCURS, THE COOLING PERFORMANCE OF THE REFRIGERATOR WILL DETERIORATE, REQUIRING IMMEDIATE REPLACEMENT OF THE COOLING UNIT.
Consequence & remedy
Consequence: EXTENDED OPERATION OF A LEAKING COOLING UNIT IN THE AC ELECTRIC MODE CAN RESULT IN A FIRE.
Remedy: NORCOLD WILL INSPECT AND REPLACE THE REFRIGERATOR COOLING UNITS. NORCOLD WILL CONDUCT THE OWNER NOTIFICATION. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT NORCOLD SERVICE CENTER AT 1-800-767-9101 OR TIFFIN AT 1-256-356-8661.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
1999 Tiffin Travel Trailer Problems, Complaints & Recalls | Skip That Year
Illustration