Quality used gear housing for a Cummins 5.9, backed by our standard warranty.

Comapitable with ISB CM550, QSB5.9 44 CM550

OEM # 3976697, 3943379, 3941532

Please Note: The part sent may not exactly match the one pictured. Appearance may vary. For specific part requests, please call 888-315-2575. Additional core charge may apply.

30OC-3976697-STK

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