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Kingpin 50 MM Bolt-on Type

The York 50 mm Bolt-On Kingpin is a precision-engineered fifth-wheel coupling component designed for reliable and repeatable tractor-trailer connection. Its bolt-on design enables straightforward field replacement without cutting or welding, significantly reducing trailer downtime during maintenance. It is a versatile solution for a wide range of semi-trailer applications.

Category:
  • Field-replaceable bolt-on design: The bolt-on fitment method allows kingpin replacement in the field using standard tools, without requiring cutting, welding, or specialist equipment.
  • International coupling standard compliance: Manufactured to meet international M-rated and D-value coupling standards, ensuring safe and compatible coupling with fifth-wheel assemblies across diverse tractor-trailer combinations.
  • Multiple rubbing plate thickness options: Available for thin, medium, and thick trailer rubbing plate specifications, providing the flexibility to fit a wide range of existing trailer plate configurations.
  • Dual 50 mm and 90 mm size availability: Offered in both standard and large kingpin diameter options to accommodate different fifth-wheel coupling systems and tractor configurations.

Tipper Trailer

Box Trailer

Low Bed Trailer

Flatbed Trailer

Stake Trailer

Refrigerated Trailer

Kingpin Size

50 mm (2-inch) & 90 mm (3.5-inch)

Type

Bolt-On

Rubbing Plate Thickness Options

10 mm, 12 mm, 16 mm

M-Rated Value

105 KN
[YKZ50M10, YKZA5012M, KITYKZP-M14-16]

D-Value (10 mm & 12 mm plate)

162 KN
[YKZA5010D, YKZA5012D]

Bearing:

TM / TP & TQ Bearing tapered/parallel spindle (TM = 65/90; TP = 90/90: TQ = 90/100)

Additional information

Kingpin Size

50 mm (2-inch) & 90 mm (3.5-inch)

Type

Bolt-On

Rubbing Plate Thickness Options

10 mm, 12 mm, 16 mm

M-Rated Value

105 KN
[YKZ50M10, YKZA5012M, KITYKZP-M14-16]

D-Value (10 mm & 12 mm plate)

162 KN
[YKZA5010D, YKZA5012D]

Bearing:

TM / TP & TQ Bearing tapered/parallel spindle (TM = 65/90; TP = 90/90: TQ = 90/100)

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