PACCAR recalls 2021 Kenworth T880 trucks with improperly torqued flywheel capscrews that may detach, causing loss of power and crash risk. Owners must have engine inspected and repaired free of charge.
A detached flywheel can cause loss of drive power, increasing the risk of a crash. Additionally, driveline pieces may be ejected from the engine compartment, increasing the risk of injury.
PACCAR is recalling 2021 Kenworth T880 trucks because flywheel capscrews may be improperly torqued, causing the flywheel to detach. This can lead to loss of drive power and increase crash risk. Affected vehicles also risk injury from ejected driveline parts. Read more at govinfonow.com/recall/80527-kenworth-t880-2021-engine-recall-detached-flywheel-risk.
“Kenworth T880 (2021) Engine Recall: Detached Flywheel Risk.” GovInfoNow, updated August 18, 2026. https://govinfonow.com/recall/80527-kenworth-t880-2021-engine-recall-detached-flywheel-risk. Based on NHTSA recall #21V080000 (https://www.nhtsa.gov/recalls?nhtsaId=21V080000).
PACCAR Incorporated is recalling certain 2021-2022 Kenworth and Peterbilt trucks with Cummins X15 engines because improperly torqued flywheel capscrews can cause the flywheel to detach, according to the National Highway Traffic Safety Administration (NHTSA). The agency announced the recall on February 17, 2021.
How to tell if you have it
Kenworth T680, 2021-2022
Kenworth T800, 2021-2022
Kenworth T880, 2021-2022
Kenworth W900, 2021-2022
Kenworth W990, 2021
Peterbilt 367, 2021-2022
Peterbilt 389, 2021-2022
Peterbilt 567, 2021-2022
Peterbilt 579, 2021-2022
What to do
PACCAR will notify owners, and dealers will properly torque the capscrews and inspect the engine for damage, repairing it if necessary, free of charge. The recall began on March 29, 2021. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt).
The hazard
A detached flywheel can cause loss of drive power, increasing the risk of a crash. Additionally, driveline pieces may be ejected from the engine compartment, increasing the risk of injury.
Context
GovInfoNow's records show PACCAR Incorporated has 148 other recalls on record since 2009-03-09. Other recent recalls of similar products include Kenworth 2027 T680 Recall: Bunk Restraint Webbing Hazard (2026-10-14), Peterbilt 548 (2027) Trucks: Delayed Brakes Risk Crash (2026-09-01), and 2027 Kenworth T680 Recall: Seat Harness Fire Risk (2026-08-21). Manufacturers have sent NHTSA 82 technical service bulletins or other communications covering the 2021 KENWORTH T680, with the latest received on 2026-10-01.
How to tell if you have this one
Check if your 2021 Kenworth T880 has a Cummins X15 engine. The recall covers vehicles with PACCAR recall numbers 21KWA or 21PBB.
Brand
Kenworth
Category
Vehicle
Based on the official NHTSA remedy
What to do — step by step
Contact PACCAR
Call 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt) to confirm your vehicle is affected and schedule an inspection.
Have engine inspected
Dealers will inspect the engine for damage and repair the flywheel if necessary at no cost.
Official remedy
What NHTSA says to do
PACCAR will notify owners, and dealers will properly torque the capscrews and the engine will also be inspected for damage and, if necessary, repaired, free of charge. The recall began on March 29, 2021. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWA and 21PBB.
How this recall unfolded
Recall timeline
2 dated steps over 40 days.
1NHTSA received the defect report
2Recall began
Dates from the agency record only; steps without a date are left out.
Take action
Contact Kenworth
We’ve drafted a message you can send Kenworth to request your refund or repair — edit it as you like.
Subject: Recall 21V080000 — Kenworth T880 (2021) Engine Recall: Detached Flywheel Risk
Hello,
I own a Kenworth T880 (2021) Engine Recall: Detached Flywheel Risk that is covered by recall 21V080000 from Kenworth.
The official recall notice states: PACCAR will notify owners, and dealers will properly torque the capscrews and the engine will also be inspected for damage and, if necessary, repaired, free of charge. The recall began on March 29, 2021. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWA and 21PBB.
I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this?
Thank you.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Plain-language summary written by qwen3:4b on August 18, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.