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ISO 4086:2001

Current Date published:

Road vehicles — 90 semi-trailer fifth wheel kingpin — Interchangeability

This International Standard specifies the characteristics of the 90 [89 mm (3,5") diameter] semi-trailer fifth wheel

kingpin used for coupling extra-heavy-duty vehicles exceeding the limitations of weight generally laid down by

official requirements.

It is applicable to fifth wheel kingpins intended for engaging 90 fifth wheels as defined in ISO 3842 [1].

This International Standard also specifies the dimensional characteristics required for mounting and

interchangeability.

NOTE The dimensions of the 50 semi-trailer fifth wheel kingpin, normally used to couple semi-trailers to tractors in

compliance with mass limitations usually set by compulsory regulations, are given in ISO 337[2].

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Related Information

Similar Standards

  • AS/NZS 4968.1:2003

    Heavy-road vehicles - Mechanical coupling between articulated vehicle combinations - Design criteria and selection requirements for fifth wheel, kingpin and associated equipment

  • AS/NZS 4968.2:2003

    Heavy-road vehicles - Mechanical coupling between articulated vehicle combinations - Testing and installation of fifth wheel and associated equipment

  • AS/NZS 4968.3:2011


    Heavy road vehicles - Mechanical coupling between articulated vehicle combinations - Part 3: Kingpins and associated equipment

  • BS 7961:2004

    Specification for a device for measuring the static vertical mass (noseweight)at the coupling point of the towed vehicle.

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