The 3911588 V Ribbed Belt is designed for Cummins Engine 4B3.9 and 6B5.9 models, compatible with part numbers 3288757, 5690176, and 3908037. Available in sizes 8PK1411, 8PK1417, 8PK1418, 8PK1420, and 8PK1425 for reliable engine performance.
Supersedes:3288757 5690176 3908037
