This SAE Recommended Practice provides instructions and test procedures for air braked trailers and dollies used in single and multiple trailer combinations on highway. This document is not intended for off-highway application.
SAE J2378_201411 History
More Standards PDF
SAE J549_201303
$28.00 $56.00
SAE AS5955B
$31.00 $63.00
SAE J1803_201301
$35.00 $70.00
SAE AS6029A
$68.00 $136.00








