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The HOLLAND Mushroom Kingpins are the traditional style weld-in SAE kingpins for OEM installations and aftermarket replacement.
AISI 8630H Alloy Steel
100% inspected for internal and external integrity
The HOLLAND Mushroom Kingpin models are for traditional weld-in applications and available in both 2” and 3.5” models. These models, when properly installed, meet or exceed the performance requirements of the Truck and Trailer Manufacturers Association (TTMA) and the Society of Automotive Engineers (SAE).