Severity
Critical
CriticalActive
NHTSA recall · Reported November 30, 2006
KENWORTH 2006: TRAILER HITCHES:FIFTH WHEEL ASSEMBLY
ON CERTAIN TRUCKS, AN RA529 KING PIN RELEASE AIR VALVE WAS MANUFACTURED WITH THE INTERNAL SPOOL INSTALLED BACKWARDS. THIS RESULTS IN THE AIR OPTION OF THE KING PIN RELEASE SYSTEM…
Compiled from official public sources by the editorial team.
Verify with NHTSA →
Kenworth recalled ON CERTAIN TRUCKS, AN RA529 KING PIN RELEASE AIR VALVE WAS MANUFACTURED WITH THE INTERNAL… - a critical-severity action.
KENWORTH 2006: TRAILER HITCHES:FIFTH WHEEL ASSEMBLY was recalled by Kenworth in November 30, 2006. Reason: ON CERTAIN TRUCKS, AN RA529 KING PIN RELEASE AIR VALVE WAS MANUFACTURED WITH THE INTERNAL SPOOL INSTALLED BAC…. Remedy: KENWORTH WILL INSPECT THE KING PIN RELEASE SYSTEM AND SUSPECT VALVE. IF ANY VEHICLES HAV…. Verify recall #06V461000 with the NHTSA before acting.
The recall
Kenworth issued this critical-severity NHTSA recall-ON CERTAIN TRUCKS, AN RA529 KING PIN RELEASE AIR VALVE WAS MANUFACTURED WITH THE INTERNAL SPOOL INSTALLED BAC….
- Critical
- severity level
- November 30, 2006
- reported
Sourced from official NHTSA enforcement records. Verify recall #06V461000 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.
Recall Insight
This NHTSA action (record #06V461000) was formally reported on November 30, 2006. It is classified under Critical severity, with a current status of Active. Kenworth is listed as the recalling firm. The number of affected units is not disclosed in the agency filing, which is common for drug and food recalls where lot-level tracking supersedes unit counts.
The documented reason for this recall is: ON CERTAIN TRUCKS, AN RA529 KING PIN RELEASE AIR VALVE WAS MANUFACTURED WITH THE INTERNAL SPOOL INSTALLED BACKWARDS. THIS RESULTS IN THE AIR OPTION OF THE KING PIN RELEASE SYSTEM BEING INOPERABLE. TO CORRECT THIS SITU… The specific hazard cited in the filing is: WITH THE LINES REVERSED, THE KING PIN CAN BE RELEASED WITHOUT THE DRIVER'S KNOWLEDGE. WHEN THIS OCCURS, THE DRIVER COULD DRIVE AWAY AND THE TRAILER COULD BECOME DISENGAGED, INCREASING THE RISK OF A …. Distribution data in the federal record shows the product reached: United States. Distribution scope directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory. The remedy documented by the agency is: KENWORTH WILL INSPECT THE KING PIN RELEASE SYSTEM AND SUSPECT VALVE. IF ANY VEHICLES HAVE A NONCONFORMING VALVE OR INCORRECT PLUMBING, IT WILL BE REPLACED AND RE-PLUMBED. THE RECALL BEGAN ON NOVEMB… - consumers holding this product should act on that instruction rather than relying on general guidance.
Within the same product category the archive holds 6 closely related recalls - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.
Vehicles recalls over time
Where this recall sits in its category - 7,642 vehicles recalls on record
Of 101,704 recalls in the database, 24,878 are high severity, 72,426 moderate, and 4,400 low. This recall is classified high severity.
Counts reflect market size and reporting activity, not inherent danger, we do not rank products by risk from raw recall volume.
Affected scope
Unknown
Related Recalls
6
0 from same agency
Product description
ON CERTAIN TRUCKS, AN RA529 KING PIN RELEASE AIR VALVE WAS MANUFACTURED WITH THE INTERNAL SPOOL INSTALLED BACKWARDS. THIS RESULTS IN THE AIR OPTION OF THE KING PIN RELEASE SYSTEM BEING INOPERABLE. TO CORRECT THIS SITUATION, THE VEHICLE'S AIR LINES WERE REVERSED RATHER THAN REPLACING THE VALVE.
Reason for recall
ON CERTAIN TRUCKS, AN RA529 KING PIN RELEASE AIR VALVE WAS MANUFACTURED WITH THE INTERNAL SPOOL INSTALLED BACKWARDS. THIS RESULTS IN THE AIR OPTION OF THE KING PIN RELEASE SYSTEM BEING INOPERABLE. TO CORRECT THIS SITUATION, THE VEHICLE'S AIR LINES WERE REVERSED RATHER THAN REPLACING THE VALVE.
Hazard
WITH THE LINES REVERSED, THE KING PIN CAN BE RELEASED WITHOUT THE DRIVER'S KNOWLEDGE. WHEN THIS OCCURS, THE DRIVER COULD DRIVE AWAY AND THE TRAILER COULD BECOME DISENGAGED, INCREASING THE RISK OF A CRASH.
Remedy, what to do
KENWORTH WILL INSPECT THE KING PIN RELEASE SYSTEM AND SUSPECT VALVE. IF ANY VEHICLES HAVE A NONCONFORMING VALVE OR INCORRECT PLUMBING, IT WILL BE REPLACED AND RE-PLUMBED. THE RECALL BEGAN ON NOVEMBER 29, 2006. OWNERS MAY CONTACT KENWORTH AT 1-425-828-5440.
Recall Profile
| Attribute | Value |
|---|---|
| Agency | National Highway Traffic Safety Administration |
| Severity class | Critical |
| Status | Active |
| Recall number | 06V461000 |
| Date reported | November 30, 2006 |
| Date initiated | November 30, 2006 |
| Recalling firm | Kenworth |
| Affected scope | Not disclosed |
| Distribution | United States |
| Official source | NHTSA notice → |
Profile values are sourced directly from the official NHTSA enforcement record. Source: National Highway Traffic Safety Administration.
What to do with this recall
KENWORTH WILL INSPECT THE KING PIN RELEASE SYSTEM AND SUSPECT VALVE. IF ANY VEHICLES HAVE A NONCONFORMING VALVE OR INCORRECT PLU…
- Check the recall number (06V461000) and product description against the item you own. Search the archive
- Confirm the current status and remedy on the official NHTSA notice before acting. NHTSA notice
- This is a Class I (high-risk) recall, stop using the product immediately and follow the disposal or return instructions. What to do next
This page summarizes the official NHTSA record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.
Frequently Asked Questions
What product was recalled? ▼
ON CERTAIN TRUCKS, AN RA529 KING PIN RELEASE AIR VALVE WAS MANUFACTURED WITH THE INTERNAL SPOOL INSTALLED BACKWARDS. THIS RESULTS IN THE AIR OPTION OF THE KING PIN RELEASE SYSTEM BEING INOPERABLE. TO CORRECT THIS SITUATION, THE VEHICLE'S AIR LINES WERE REVERSED RATHER THAN REPLACING THE VALVE.. Recalled by Kenworth.
Why was this product recalled? ▼
ON CERTAIN TRUCKS, AN RA529 KING PIN RELEASE AIR VALVE WAS MANUFACTURED WITH THE INTERNAL SPOOL INSTALLED BACKWARDS. THIS RESULTS IN THE AIR OPTION OF THE KING PIN RELEASE SYSTEM BEING INOPERABLE. TO CORRECT THIS SITUATION, THE VEHICLE'S AIR LINES WERE REVERSED RATHER THAN REPLACING THE VALVE.
What should consumers do? ▼
KENWORTH WILL INSPECT THE KING PIN RELEASE SYSTEM AND SUSPECT VALVE. IF ANY VEHICLES HAVE A NONCONFORMING VALVE OR INCORRECT PLUMBING, IT WILL BE REPLACED AND RE-PLUMBED. THE RECALL BEGAN ON NOVEMBER 29, 2006. OWNERS MAY CONTACT KENWORTH AT 1-425-828-5440.
Which agency issued this recall? ▼
This recall was issued by the NHTSA on November 30, 2006. Severity: Critical. Recall number: 06V461000.
Where was the recalled product distributed? ▼
Distribution: United States.
How do I check if my product is affected by a recall? ▼
Check the product description and recall number (06V461000) against your product. Visit the official NHTSA website for the most current information. You can also use our Recall Checker tool to search by product name or brand.
How do I report an injury from a recalled product? ▼
Report injuries to the issuing agency: CPSC at SaferProducts.gov, NHTSA at nhtsa.gov/report-a-safety-problem, or FDA via MedWatch. Document the product (photos, model/serial numbers, purchase receipts) and seek medical attention. Injury reports help agencies track hazard patterns and may strengthen enforcement actions.
Nearby Recalls in This Category
Other recalls in the same product category, useful for spotting patterns across the same defect class or manufacturer.
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Every figure on PlainRecalls is rendered directly from official FDA, CPSC and NHTSA recall records, no number is typed in by an editor. This recall: NHTSA, reported November 30, 2006. Severity classes follow each agency's own taxonomy (FDA Class I/II/III; CPSC and NHTSA by hazard type), and related-recall context is computed across the full archive. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.