Keep your trailer's leaf spring suspension properly pinned and lubricated with this OEM-spec replacement wet shoulder shackle bolt from Lippert. Designed specifically for Lippert axle assemblies, this bolt features a precision-ground shoulder, correct 7/16-20 thread, and comes with a Zerk grease fitting so you can maintain the joint without disassembly -- a critical detail that cheap generic bolts often skip.
Shackle bolts are a wear item. Every mile your trailer travels, the shackle bolt pivots under load as the leaf springs flex. A worn or improperly sized bolt creates slop in the suspension, accelerates bushing wear, and can eventually lead to shackle failure on the road. Replacing with the correct Lippert-spec bolt -- not a hardware-store approximation -- ensures the shoulder seats flush in the shackle eyes and that the thread engages the nut correctly.
The "wet" designation means this bolt is engineered to be greased through its integrated Zerk fitting. Regular greasing through the Zerk extends bushing and bolt life significantly compared to dry-pin designs. If your current bolt lacks a Zerk, upgrading to this wet-shoulder design is a meaningful maintenance improvement.
Grease the pivot point without removing the bolt. Prolongs bushing and shackle life on any terrain.
2.325" shoulder length and 9/16" body diameter match OEM Lippert axle shackle clearances exactly.
7/16-20 fine thread engages the Lippert shackle nut securely and resists vibration loosening.
Listed as a direct replacement by Forest River, Grand Design, and Keystone -- not just a generic fit claim.
A standard shackle bolt is a smooth-shouldered pin with no provision for lubrication. Once installed, the bolt relies on whatever grease was applied at assembly and gradually runs dry as bushings wear. A wet shoulder bolt adds a Zerk fitting (also called a grease nipple or grease zerk) that channels lubricant through the bolt body to the bearing surface. This allows you to regrease the joint at every service interval without pulling the bolt -- a significant time and longevity advantage for a part that sees continuous load cycling.
This Lippert bolt is sold under multiple OEM part numbers by the major RV manufacturers whose coaches use Lippert axle systems. If you're ordering a replacement through your dealer's parts department or sourcing from a manufacturer's parts list, any of the following numbers cross to Lippert 126238:
Inspect shackle bolts at every seasonal inspection or any time you notice handling changes, unusual tire wear, or clunking from the suspension. Replace when you find: