Recall 10V453 covers 384 2011 Kenworth and Peterbilt trucks for EGR valve oil leaks onto exhaust components. Repair is free at franchised dealers.
Kenworth is recalling 384 2011 T700, T800, W900, T660 and related 367, 387, 388, 365, 386 and 384 vehicles under recall 10V453 because an EGR valve actuator seal can delaminate and leak engine oil onto exhaust components. Oil on hot exhaust parts under significant engine load raises the risk of fire, and the dealer repair will be free once available.
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What's wrong?
The EGR valve on these 2011 Kenworth trucks controls exhaust gas recirculation, which sends a measured amount of exhaust back through the engine system. An actuator moves that valve open and closed. The seal on the actuator output shaft keeps engine oil inside the EGR valve assembly instead of letting it escape onto nearby parts.
In recall 10V453, the problem is a manufacturing defect in that shaft seal. The seal can delaminate, which means its layers separate and stop sealing the shaft correctly. Once that happens, engine oil can leak from the EGR valve and reach the exhaust components.
There is no warning sign before failure. The recall filing does not identify a dash light, sound, or drivability change that reliably appears before the seal breaks down.
Who's affected?
Covers 10 truck models from the 2011 model year, all tied to the EGR valve.
| 2011 Kenworth T700 | Gas recirculation valve (egr valve) |
|---|---|
| 2011 Peterbilt 367 | Gas recirculation valve (egr valve) |
| 2011 Peterbilt 387 | Gas recirculation valve (egr valve) |
| 2011 Peterbilt 388 | Gas recirculation valve (egr valve) |
| 2011 Peterbilt 365 | Gas recirculation valve (egr valve) |
| 2011 Peterbilt 386 | Gas recirculation valve (egr valve) |
| 2011 Peterbilt 384 | Gas recirculation valve (egr valve) |
| 2011 Kenworth T800 | Gas recirculation valve (egr valve) |
| 2011 Kenworth W900 | Gas recirculation valve (egr valve) |
| 2011 Kenworth T660 | Gas recirculation valve (egr valve) |
| Units affected | 384 |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
Engine oil leaking onto hot exhaust components creates a fire risk, especially when the engine is under significant load. If your VIN is included, contact a Kenworth dealer and ask for current recall instructions before heavy operation. Repair will be free at any franchised Kenworth dealer once available.
What should I do?
- Check your VIN to confirm your 2011 Kenworth T700, 367, 387, 388, 365, 386, 384, T800, W900, or T660 is included in this recall.
- Wait for Kenworth's owner notice if your VIN is included and no notice has reached you.
- Contact a franchised Kenworth dealer to ask about the free EGR valve assembly replacement that stops engine oil from leaking onto hot exhaust components.
- Bring the recall notice if Kenworth has mailed one. If not, reference recall number 10V453 when you call.
- Avoid heavy engine loads until the EGR valve repair is complete.
What happens at the repair
At the dealer, a Kenworth technician replaces the EGR valve assembly on affected 2011 trucks equipped with the PACCAR MX engine. The source remedy says the safety recall service began on October 29, 2010, and the work is performed free of charge. The repair focuses on the EGR valve actuator seal issue described in campaign 10V453, where engine oil can leak from the EGR valve onto exhaust components. Kenworth lists owner support at 425-828-5440 for this recall.
Timeline
| October 1, 2010 | NHTSA published the recall |
|---|---|
| October 29, 2010 | Owner notification mailed |
Frequently asked questions
What is recall 10V453?
Recall 10V453 covers 384 2011 Kenworth vehicles with PACCAR MX engines and an EGR valve actuator seal defect. The seal can delaminate, letting engine oil leak from the EGR valve onto hot exhaust parts and creating fire risk. Dealers replace the EGR valve assembly for free.
What should I do if my 2011 Kenworth T700, T800, W900, or T660 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 10V453. If it is, call a franchised Kenworth dealer and ask for the EGR valve assembly replacement. Reference recall number 10V453 when you schedule service. The dealer repair is free.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost, and the recall remedy states that dealers replace the EGR valve assembly free of charge on subject vehicles equipped with the PACCAR MX engine.
What is the safety risk?
The safety risk is fire. Recall 10V453 says the EGR valve actuator seal can delaminate and allow engine oil to leak onto hot exhaust components, especially when the engine is under significant load. If your VIN is included, arrange the free dealer repair.
When did the recall repair start?
The safety recall began on October 29, 2010. Because that date has passed, affected owners can contact a franchised Kenworth dealer now to ask about the EGR valve assembly replacement and reference recall number 10V453 when scheduling service.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/10V453000 |
|---|---|
| Kenworth customer service | 425-828-5440 |
| NHTSA recall # | 10V453 |
| NHTSA recall # (full) | 10V453000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Owner Notification Letter (PDF)
- Download Defect / Noncompliance Notice (PDF) (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on June 3, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →