2021 Kenworth W900 Problems, Complaints & Recalls
- Compared with other W900 years
- Not enough data 8th of 31 for complaints
- Safety recalls
- 3 recalls: check your VIN
- NHTSA crash rating
- Not rated
Owners have filed 1 complaint with NHTSA about the 2021 Kenworth W900. That ranks 8th out of 31 W900 model years for complaints. The most reported problem area is unknown or other (1 complaints, 100%). There are 3 safety recalls covering this model year.
- 1owner complaints
- 3safety recalls
- 0NHTSA investigations
- 0complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2021 Kenworth W900 problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Unknown or Other | 1 | 100% | — | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
2021 Kenworth W900 recalls (3)
Tap a recall to see the problem, the risk and the fix.
Seat belts
Problem: PACCAR Incorporated (PACCAR) is recalling certain 2020 Kenworth T660, 2018-2024 Kenworth T800 and W900 vehicles. An additional spacer may have been added to the joint that connects the seat to the seat belt tether and buckle, causing an unsecured connection.
Risk: An unsecured seat belt connection may not properly restrain an occupant during a crash, increasing their risk of injury.
Fix: Dealers will inspect and remove the additional spacer and replace the bolt, as necessary, free of charge. Owner letters were mailed March 20, 2024. Owners may contact PACCAR's customer service at 1-425-828-5888. PACCAR's number for this recall is 23KWK.
Engine
Problem: PACCAR Incorporated (PACCAR) is recalling certain 2021-2022 Kenworth T680, T880, W990, T800, W900 and Peterbilt 579, 567, 389, 367 vehicles equipped with a Cummins X15 engine. The capscrews that attach the flywheel to the crankshaft may have been improperly torqued, allowing the flywheel to detach.
Risk: 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.
Fix: 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.
Power train:axle assembly
Problem: PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 348, 365, 367, 389, 520, 567 and Kenworth T800, T880, W900, W990 vehicles equipped with Watson and Chalin steerable lift axle suspension systems (model SL2065). The axles may have lower rear pivot bolts that are not long enough to sufficiently engage the locking feature of the corresponding nuts.
Risk: The short screws can cause the hardware to separate from the suspension system and become road hazards, increasing the risk of a crash and/or injury.
Fix: PACCAR will notify owners, and dealers will inspect suspect chassis and replace the pivot bolts, as necessary, free of charge. The recall began September 29, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall is 20PBE and 20KWC.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
Transmission issues
Other Kenworth W900 years
| Year | Complaints | Recalls |
|---|---|---|
| 2025 W900 | 0 | 2 |
| 2024 W900 | 1 | 2 |
| 2023 W900 | 0 | 4 |
| 2022 W900 | 2 | 4 |
| 2021 | 1 | 3 |
| 2020 W900 | 0 | 6 |
| 2019 W900 | 0 | 7 |
| 2018 W900 | 0 | 9 |
| 2017 W900 | 0 | 6 |
| 2016 W900 | 0 | 11 |
| 2015 W900 | 0 | 9 |
| 2014 W900 | 0 | 9 |
| 2013 W900 | 0 | 7 |
| 2012 W900 | 0 | 8 |
| 2011 W900 | 0 | 10 |
| 2010 W900 | 0 | 9 |
| 2009 W900 | 0 | 17 |
| 2008 W900 | 1 | 20 |
| 2007 W900 | 2 | 16 |
| 2006 W900 | 1 | 11 |
| 2005 W900 | 2 | 9 |
| 2004 W900 | 2 | 12 |
| 2003 W900 | 1 | 6 |
| 2002 W900 | 1 | 4 |
| 2001 W900 | 1 | 9 |
| 2000 W900 | 7 | 9 |
| 1999 W900 | 3 | 10 |
| 1998 W900 | 3 | 6 |
| 1997 W900 | 1 | 5 |
| 1996 W900 | 0 | 6 |
| 1995 W900 | 1 | 2 |
See all Kenworth W900 problems by year, every Kenworth model, or the VIN decoder.
Similar Kenworth models
Embed this 2021 Kenworth W900 badge on your site
Copy this code into your blog or forum post. It shows live complaint and recall counts and links back here.
Frequently asked questions
What are the most common problems with the 2021 Kenworth W900?
Owners most often report unknown or other problems. The top one, unknown or other, accounts for 1 complaint.
Was there a recall on the 2021 Kenworth W900?
Yes, 3 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2021 Kenworth W900 a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other W900 model years, the 2021 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.