Wallace Forge has been manufacturing quality King Pins for tractor trailers since 1980. All our King Pins are 100% American made and individually checked to insure the highest quality. Forged out of an AISI 8630 or 4320 material, depending on the model, Wallace Forge’s Kin Pins conform to all SAE and AAR standards. Every one of our King Pins is 100% Brinell hardness checked, magnetic particle inspected and weldable.
These King Pins are also known as Mushroom King Pins. Minimum order for 4320H Steel 100 King Pins.
All of the below King Pins have eight 0.53 inch drilled holes spaced on a 6.75 inch diameter. If you require different sized drilled holes, please specify on purchase order. Minimum order for 4320H Steel 100 King Pins.
These King Pins are also known as Double Spool King Pins. Minimum order for 4320H Steel 100 King Pins.
These King Pins are are for off the road equipment and heavy duty trucks.Drilled models feature four 1.25 inch holes on a diameter of 8.5 inch.
The King Pin Lock comes with 2 keys, please specify key number. Lunette Lock does not come with lock and key.
These King Pins meet all the requirements of the Association of the American Railroads, AAR, Standard M-931 when installed properly.