BDL, repl. primary belt. 1-1/2", 132T- (minus), 8mm pitch

This is the so-called '-' belt. For the '+' belt see fmc-970-974.

Note: The difference in belts between 65-78 and 78-83 FL, FX models is due to a minor difference in primary housing length. Available belts are therefore designated as a - (minus, slightly shorter / MCS 506915) or + (plus, slightly longer / MCS 970974) belt, although the number of teeth is identical.