Part number 3288746, which replaces 3921753, is an 8PK1440 V ribbed belt that fits Cummins 4B3.9, 6B5.9, B4.5, G5.9, ISC, and ISL engines. With 8 ribs and a 1440mm effective length, it transfers power efficiently. Manufactured to OEM specs for precise fit and durability.

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