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The HOLLAND Cruciform Kingpins are for OEM installation and aftermarket replacement, and are offered in American Association of Railroads (AAR) and non-AAR models.
AISI 4320H and 4718H
AISI 8630H Alloy Steel
100% inspected for internal and external integrity
The HOLLAND Cruciform Kingpins when properly installed, meet or exceed the performance requirements of the AAR standard M-931, Truck and Trailer Manufacturers Association (TTMA) and the Society of Automotive Engineers (SAE). Non-AAR models when properly installed, meet or exceed the performance requirements of the TTMA and SAE.