Yokomo SD-414CA Aluminum Kingpin Collar for DP-series Front Knuckles  [SD-414CA]

Details on the DP-series Kingpin Collar

The SD-414CA collar is crafted from anodized aluminum for use in RC front knuckle assemblies, intended to sit above and below the knuckle on the kingpin to provide reliable seating and consistent spacing during operation.

To install, slide one collar onto the kingpin above the knuckle and a second one below. Confirm there is adequate clearance so the knuckle turns smoothly, then secure the retaining hardware per your chassis instructions. If you notice any binding, tweak the mounting hardware or shims until steering motion is restored.

Tuning benefit: collars serve as hardened interfaces that minimise slack at the kingpin, helping to keep steering geometry stable under load and improving the repeatability of steering feel when you adjust toe and caster settings.