Cummins Serpentine Belt for QSB 5.9 Engine CPN 5466980 (ORANGE)
** New Number 5466980 Replaces 3975127 **
|Shipping Dimensions||8 × 6 × 1 in|
Which serpentine belt do I need on my Cummins Marine QSB 5.9 engine?
Engines with 19SI alternators use the ORANGE BELT.
Engines with 21/22SI or 24SI alternators use the BROWN BELT.
Identifying the Alternator on the QSB 5.9
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