Total Complaints
4 filings
KENWORTH T800 · model year
1999 KENWORTH T800
4 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1999KENWORTHT800 carries 4 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 1999 T800 is suspension:front with 1 filings, followed by power train:driveline:universal joint (1) and suspension:front:springs:air suspension system (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 3 investigation files overlapping the 1999 T800. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page, a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
4
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| SUSPENSION:FRONT | 1 |
| POWER TRAIN:DRIVELINE:UNIVERSAL JOINT | 1 |
| SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM | 1 |
| ENGINE AND ENGINE COOLING:ENGINE:DIESEL | 1 |
Recent Complaints
20040223ENGINE AND ENGINE COOLING:ENGINE:DIESEL
RECENTLY ONE OF MY TRACTORS EQUIPPED WITH A CATEPILLAR ENGINE HAD A MAJOR ENGINE FAILURE WHICH CAUSED MY DRIVER TO MAKE AN EMERGENCY STOP ALONG A FREEWAY IN COLORADO. I WAS INFORMED THE CRANKSHAFT HAD BROKEN. BY MISTAKE A NOTICE SENT BY CATERPILLAR NAMED "CONFIDENTIAL" WAS LEFT ON A COUNTER WHICH I HAPPENED TO PICK UP AND READ. IT STATED TRUCKS WITH THIS PARTICULAR ENGINE STARTING WITH A CERTAIN SERIAL NO. AND ENDING WITH ANOTHER SERIAL NO. HAD THIS TYPE OF ENGINE FAILURE, BROKEN CRANKSHAFT, WOULD BE HANDLED ACCORDING TO THE MILEAGE ON THAT TRUCK. IT ALSO STATED NO REPAIR WAS TO BE ADMINISTERED UNTIL THE CRANKSHAFT FAILED. THE NUMBER OF ENGINES INVOLVED ACCORDING TO THE SERIAL NO. WAS APPROXIMATELY 20,000. AFTER READING THEIR BULLETIN IT WAS APPARENT TO ME CATERPILLAR KNEW THEY HAD A FLAW IN THESE CRANK SHAFTS AND INSTEAD OF RECALLING AND REPLACING THESE CRANKSHAFTS THEY WOULD PREFER TO TAKE A CHANCE AND REPLACE, ACCORDING TO THE MILEAGE AT FAILURE, THE FAILED COMPONET. AT ISSUE HE
Mileage: 628,000
20011109SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM
WHEEL BEARINGS KEEP FAILING, STEERING TIRES KEEP GETTING EATEN UP, WHICH CAUSES VEHICLE TO PULL TO RIGHT, WHEN THIS HAPPENS BRAKES WOULD CHATTER DUE TO A LACK OF WHEEL BEARINGS. DRUM DROPPED ON BRAKE PADS AND SHOES. BRAKE SHOES WOULD BREAK OFF.*AK *YD
20000411POWER TRAIN:DRIVELINE:UNIVERSAL JOINT
RECALL 99V303/ ALUMINUM DRIVELINE. PARTS THAT WERE NEEDED TO PERFORM RECALL REPAIRS WERE NOT AVAILABLE. *AK
20000120SUSPENSION:FRONT
VEHICLE EXPERIENCING ONGOING PROBLEM WITH VEHICLE CONTINUALLY PULLING TO THE RIGHT WHILE DRIVING AT HIGHWAY SPEED. DEALER NOTIFIED. *AK
Compare 1999KENWORTHT800 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 1999 KENWORTH T800 have?▼
The 1999 KENWORTH T800 has 4 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1999 KENWORTH T800?▼
The most-complained component for the 1999 KENWORTH T800 is SUSPENSION:FRONT with 1 complaints. Other frequently reported areas include POWER TRAIN:DRIVELINE:UNIVERSAL JOINT and SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM.
Is the 1999 KENWORTH T800 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology - how this data is sourced, computed, and verified.