2005 Kenworth T800 problems, complaints & recalls
Most-reported problem areas: Suspension (1) · Structure:frame And Members (1) · Electrical System (1)
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (23)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-10-13 · 42-070 · Service Bulletin/Repair Instructions
due to supplier constraints, an authorized aftermarket surge tank has been made available.
Engine 2026-09-11 · P001 · Service Bulletin/Repair Instructions
"kenworth: dealers should check the chassis list and sir weekly for vin changes. 2 chassis added to the chassis list. peterbilt: dealers should check the chassis list and sir weekly for vin changes. 10 chassis added to the chassis list."
Visibility:windshield Wiper/Washer 2021-02-10 · 02-160 · Service Bulletin/Repair Instructions
information only â windshield washer pumps have a high no trouble found rate. washer pumps may fail to spray due to a clogged filter.
Equipment:appliance:air Conditioner 2020-12-20 · DOR-W5T2V-01 · Service Bulletin/Repair Instructions
this sku is a climate control module. the customer communication requested return of unsold inventory to inspect alignment pins and knobs. the alignment pins may be weak which cause them to break and knob material may be weak which could cause them to break. breaking of the alignment pins or knob
Electrical System 2020-06-08 · 32-015 · Service Bulletin/Repair Instructions
information only: this bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
Equipment 2020-03-17 · 32-016 · Service Bulletin/Repair Instructions
information only: proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
Showing the 6 most recent of 23 bulletins. Search all of them free at nhtsa.gov.
What owners report
2018-10-22 · Suspension · 25 mi“takara recall- operating dump truck on a local road at approximately 25 mph. decelerating to a stop at a red light. as the vehicle slowed down, the light changed and as i attempted to accelerate the rear of the truck came up off the ground. when i got out to inspect what happened, the entire rear axel disconnected from the truck and was on the g…”
2008-08-29 · Electrical System · 250,000 mi · 🔥 fire“tl*the contact owns a 2005 kenworth t800. the contact stated that the clamps that hold the battery cables, which lead from the battery to the starter, were not adjusted properly. as a result, the cables were chaffing. a fire ignited and spread throughout the engine and cab of the vehicle. the fire department extinguished the fire. the insuranc…”
2005-08-24 · Structure:frame And Members“2004 and 2005 t800 kenworth trucks developed a problem when backing up there is a twisting of the engine and frame.***no answer required***. *mr the twisting also caused the cooling fan to strike the fan shroud causing deterioration of the fan and later, failure along with the radiator. repeated failure of the a/c condensers. there were several…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.