Part number 3911564, which replaces 3289023 and 3807370, is an 8PK1920 V ribbed belt that fits Cummins 4B3.9 and 6B5.9 engines. With 8 ribs and a 1920mm effective length, it runs smoothly under load. OEM quality for accurate fit and lasting performance.
Condition:New / OEM Quality
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