Category SAE Standards

The SAE J1978 (revised May 2022) standard defines the minimum capabilities for an OBD-II scan tool intended to communicate with OBD-compliant vehicles for emission-related diagnostics. Technically equivalent to ISO 15031-4, this recommended practice is essential for engineers designing generic test…

SAE J1962-2016 establishes the physical and electrical requirements for the on-board diagnostic (OBD) connector used in passenger cars and light to medium duty trucks. Originally developed to meet U.S. OBD regulations and later aligned with ISO 15031-3, this standard ensures…

SAE J1965 specifies test methods and performance requirements for wheel fixing nuts used in commercial vehicles and multipurpose passenger vehicles. This recommended practice covers one- and two-piece flange nuts, single and inner/outer ball seat nuts, and rim clamp nuts. By…

SAE J1949-2015 specifies dimensional requirements for high-pressure fuel injection pipe connections used in diesel engines. This standard covers 60° female cones with external threaded connectors (Types 1 and 2) and the associated tube nut and male cone assembly. While the…

This SAE Recommended Practice establishes design guidelines for mechanical and electrical brake adjustment limit stroke indicators used on cam or disc air-brake actuators. The standard specifies how these indicators must function to alert drivers and technicians when the foundation brakes…

1. Scope and Applicability The SAE J1957-2011 standard establishes test procedures, performance requirements, and guidelines for center high mounted stop lamps (CHMSL) intended for use on vehicles with an overall width less than 2032 mm. The CHMSL is an additional…

The SAE J1946 standard defines the nominal dimensions and tolerances for companion flanges used in commercial vehicle and bus drivetrains. It covers two distinct types: Type A (external pilot) and Type S (internal pilot), which are equivalent to ISO 7646…

Thin resinous coatings applied to the metallic outer diameter (O.D.) of radial lip-type shaft seals are a proven solution for achieving a reliable seal even when the mating bore finish is too rough (typically exceeding 2.54 μm Ra) or in…

Overview of the Standard SAE J1948-2021 is a recommended practice that provides a standardized test procedure for evaluating occupant restraint systems in heavy-duty truck sleeper berths. The primary purpose is to determine whether the restraint system can sustain the required…

Selecting the right nonmetallic flexible hose assembly for a marine piping system is critical for safety and regulatory compliance. SAE J1942-1 provides a convenient listing of hose assemblies that have been qualified in accordance with SAE J1942 and 46 CFR…