ISO 20019:2025

Agricultural vehicles — Mechanical connections on towed vehicles — Dimensions for hitch rings

This document specifies dimensional requirements for the attachment of agricultural, non-balanced trailers and implements by means of hitch rings to the rear of towing vehicles equipped with a hook specified in ISO 6489-1. It ensures the interchangeability of the mechanical connections on agricultural towed vehicles. This document is applicable to rings whose coupling point is below the centre-line of the rear axle and the power take-off (PTO) of the tractor.

Véhicules agricoles — Liaisons mécaniques sur véhicules remorqués — Dimensions des anneaux d'attelage

La présente Norme internationale spécifie les dimensions de l'attelage des remorques agricoles semi-portées et des instruments agricoles attelés au moyen d'anneaux d'attelage à l'arrière du véhicule tracteur équipé d'un crochet d'attelage tel que spécifié dans l'ISO 6489-1. Elle a pour objet d'assurer l'interchangeabilité des liaisons mécaniques entre véhicules agricoles remorqués. La présente Norme internationale s'applique aux anneaux dont le point d'attelage est situé au-dessous de la ligne médiane de l'essieu arrière et au-dessous de la prise de force (p.d.f.) du tracteur. NOTE D'autres Normes internationales sont en cours d'élaboration pour les anneaux attelés au-dessus de la p.d.f.

General Information

• Status: Published
• Publication Date: 01-Oct-2025
• ICS: 65.060.10 - Agricultural tractors and trailed vehicles
• Technical Committee: ISO/TC 23/SC 4 - Tractors
• Drafting Committee: ISO/TC 23/SC 4/WG 8 - Power take-off (PTO) and drawbar
• Current Stage: 6060 - International Standard published
• Start Date: 02-Oct-2025
• Due Date: 20-Mar-2026
• Completion Date: 02-Oct-2025

Relations

• Revises: ISO 20019:2001 - Agricultural vehicles — Mechanical connections on towed vehicles — Dimensions for hitch rings
• Effective Date: 21-Sep-2024

Standards Content (Sample)

International
Standard
ISO 20019
Second edition
Agricultural vehicles — Mechanical
2025-10
connections on towed vehicles —
Dimensions for hitch rings
Véhicules agricoles — Liaisons mécaniques sur véhicules
remorqués — Dimensions des anneaux d'attelage
Reference number
© ISO 2025
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Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Interchangeability dimensions . 1
4.1 General .1
4.2 Trailer shank travel angles .1
5 Construction . 2
Bibliography . 4

iii
Foreword
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