Fuel pump driven gear shaft assembly for Cummins K19, NT855, M11 diesel engines, aftermarket replacement PT fuel pump transmission parts. All part numbers are cross-referenced against OEM specs for direct matching.

Part numbers: 3019613, 3019616, 3019617
Fits: Cummins K19, NT855, M11 diesel engine
Position: PT fuel pump gear transmission set

What you are ordering
Price is per driven gear shaft assembly. All part numbers are separate variants, please select the correct PN from variant options. These gear shaft assemblies are not interchangeable. Different part numbers have different gear tooth counts, shaft diameter and mounting dimensions. Wrong selection will cause transmission jam, gear wear, loss of fuel supply pressure and fuel pump failure.

Specifications
Material: high strength alloy steel
Structure: integrated gear and shaft assembly
Gear tooth & shaft dimension: calibrated to OEM standard
Finish: quenched and ground, wear-resistant & anti-corrosion treatment, runout tested before packing
Packing: individual protective box, marked with part number

When to replace
Driven gear shaft suffers tooth wear, shaft scoring and fatigue damage after long running hours and contaminated lubrication. Common failure signs: abnormal grinding noise inside PT pump, fluctuating fuel pressure, insufficient fuel supply, pump lock-up. Replace the matched gear shaft assembly together when wear is detected, and inspect the mating drive gear and bearings at the same time.

Fitting notes
Strictly confirm gear parameters and shaft size before assembly. Do not mix gear shafts of different part numbers. Follow Cummins service manual for gear meshing clearance and torque requirement. If you are not sure which PN matches your engine CPL, send us engine serial number for confirmation.

Warranty and shipping
Covered by a 12-month warranty against manufacturing defects. Orders are dispatched within 3–7 business days; DHL / FedEx delivery takes 5–10 business days. Tracking number is sent as soon as the parcel leaves our warehouse.

Note: manufacturer names and part numbers are used for identification and cross-referencing only. We are an independent aftermarket supplier and are not affiliated with, or authorised by, the original manufacturer. Please verify the part number against your engine's parts catalogue before ordering — our team is happy to help if you send us your engine model or serial number.