A small part with a big job. Lippert's 118103 hairpin pin is an OEM-spec retaining pin used throughout Lippert slide-out mechanisms, leveling jack linkages, and other RV hardware assemblies. If yours is bent, lost, or corroded, this is the correct factory replacement to restore safe, reliable operation.
Hairpin cotter pins are the unsung fasteners of RV mechanical systems. They lock pivot pins, clevis pins, and axle shafts in place, preventing accidental disengagement during travel or deployment. Lippert part number 118103 is dimensioned at 0.13 inches in wire diameter and 1.91 inches in overall length, matching the OEM specification for a wide range of Lippert-built components.
Because these pins see repeated stress -- flexing open and snapping shut every time a slide or jack is cycled -- they are among the most commonly worn or lost hardware items in Lippert systems. Keeping a spare on hand is simple preventive maintenance.
Wire diameter 0.13 in., overall length 1.91 in. -- matches Lippert factory spec exactly so no trimming or bending is needed.
Used across multiple Lippert product families including slide-out actuator linkages, leveling jack pivot points, and associated RV chassis hardware.
Hairpin pins install and remove by hand or with basic pliers -- no special tools needed. A two-minute job that can prevent costly system damage.
Sourced directly from Lippert Components, ensuring correct material temper and geometry. Aftermarket pins of the wrong spring tension can slip out under vibration.
Lippert builds a large share of the slide-out systems, electric leveling jacks, and suspension hardware found in travel trailers, fifth wheels, and motorhomes. The 118103 hairpin pin appears in several of these assemblies as a secondary retainer, typically locking a clevis or shoulder bolt so the primary fastener cannot walk out:
Inspect hairpin pins at each seasonal check or any time you hear unusual clicking or feel looseness in a slide-out or leveling system. Signs of a failed hairpin pin include: