Genuine Cummins 3928143 Mechanical Fuel Transfer Lift Pump for 4B/6B Series – New Old Stock (NOS)

Genuine Cummins fuel transfer (lift) pump, part number 3928143 — Carter-built mechanical, lever-actuated diaphragm pump supplied under the Cummins SmartPower / Genuine Cummins Parts label. Application: Cummins mechanical fuel systems — commonly associated with the B-series engine family (marine, industrial, and vehicular). Exact engine model and CPL for this unit have not been verified; sold by photographs, identifiers, and dimensions. Condition: New / NOS shelf stock with the original Cummins parts label. Bright plating, clean diaphragm housing crimp, no fuel staining or gasket residue. Light storage marks on the actuating lever. Not bench-tested; no flow or pressure test claims are made. Mounting gasket not included unless pictured. Quote is subject to final fitment confirmation by engine/transmission serial number, part number, photos, and supplier availability. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase.