The 6LT8.9 fuel injection pump is a precision-engineered diesel fuel system component developed for compatible Cummins 6LTAA8.9-G2 engine applications. Its accurately manufactured internal components help provide consistent fuel delivery and controlled injection performance supporting efficient combustion and stable engine output.
This fuel injection pump is associated with 5258154 4944057 and 10404716046. Designed for the Cummins 6LT8.9 diesel engine, it provides a practical replacement solution for fuel system repair engine overhaul and routine maintenance.
A properly operating fuel injection pump is essential for maintaining correct fuel delivery engine starting acceleration and power output. When the original pump becomes worn or develops insufficient fuel supply leakage unstable engine speed or poor injection performance, replacing it with a correctly matched unit can help restore normal engine operation.
The 6LTAA8.9-G2 diesel pump is suitable for compatible generator sets construction machinery industrial equipment agricultural machinery and other heavy-duty diesel applications. Its durable construction is designed to withstand vibration temperature changes and extended operating periods.
Before shipment each pump can be checked for fuel delivery pressure performance leakage dimensional accuracy and overall operating condition. These inspection procedures help ensure dependable replacement quality and consistent fuel system performance.
For generator service providers equipment owners repair workshops machinery dealers and diesel engine parts distributors, the 5258154 4944057 fuel injection pump provides a reliable replacement option for maintaining compatible Cummins 6LT8.9 engines.


















Q1: Which engines is this fuel injection pump suitable for?
A: It is designed for compatible Cummins 6LTAA8.9-G2 and 6LT8.9 diesel engines.
Q2: What are the reference numbers for this pump?
A: The listed reference numbers are 5258154 4944057 and 10404716046.
Q3: What equipment can use this Cummins fuel pump?
A: It is suitable for compatible generator sets construction machinery industrial equipment agricultural machinery and other diesel-powered applications.
Q4: What symptoms may indicate a fuel injection pump problem?
A: Possible symptoms include difficult starting unstable engine operation reduced power poor acceleration excessive smoke abnormal fuel consumption or inconsistent fuel delivery.
Q5: What other Cummins 6LT8.9 engine parts do you supply?
A: We supply fuel injection pumps common rail components fuel injectors injector nozzles turbochargers complete engine assemblies cylinder heads cylinder blocks crankshafts camshafts overhaul kits starter motors alternators ECUs and other diesel engine spare parts.