Benson/parker hannifin/telescopic cylinder
Defect Summary
On certain large framed and frameless end dump trailers, the 8-inch five stage telescopic cylinder commonly referred to as a "super dump", with use the packing nut on the fourth stage retaining the plunger can loosen, backing off the fourth stage. this condition, if not remedied, can continue until the packing nut backs completely off the stage. if this occurs, there is nothing to retain the fifth stage (plunger) in the assembly.
Safety Consequence
When the cylinder is extended to its maximum stroke, the fifth stage can separate from the cylinder assembly causing loss of control over the trailer, allowing the trailer to free fall, possibly causing serious injury or death.
Corrective Action
Parker hannifin will provide a field modification kit #375 1805 206 to secure the packing nut in position free of charge. owners who do not receive the free remedy within a reasonable time should contact parker hannifin at 1-888-231-7461 or benson at 1-877-489-9020.
Similar Recalls
Other recalls from Benson International, Inc. or involving Equipment.
FAQ: Recall 04V146000
Your rights, the repair process, and what each field on this page means.
What is recall 04V146000?
NHTSA recall 04V146000 was issued by Benson International, Inc. on March 24, 2004. It addresses: Benson/parker hannifin/telescopic cylinder. The recall affects approximately 1 vehicles, with the defect involving the Equipment component.
How do I get this recall repaired?
Contact any authorized Benson International, Inc. dealer and reference NHTSA recall ID 04V146000 or the manufacturer campaign number 2004 PHC. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.