Brand New Cummins QSB 4.5 L Long Block Engine - This engine is a 2025 Surplus Component Build Unit built with original castings and moslty new parts. Component Builds contain roughly 90% OEM Parts, 10% Aftermarket and limited reman parts when available. This engine is not considered full reman/used but rather a component build with new surplus castings. Why risk an unknown used QSB 4.5 L engine when a new long block will get you up and running again? NOTE: 4.5 L Units were a limited production run from Cummins and are not the same configuration as a 3.9 (4BT). We match up your ESN to ensure proper fit but don't make the mistake of thinking a 4.5 L and 3.9 L are the same engine.They can be tricky to match up perfectly especially with the fuel pump gear housings as well as front vs. rear gear train applications. Long Block Includes: - Engine Block - Cylinder Head - Camshaft and Lifters - Rocker Assemblies - Connecting Rods - Pistons (170 HP @2500 RPM) - Gear Housing and Front Cover - Liners, Rings, Gaskets - Rear Sump Oil Pan - 3/4 Engine Does not include ECM, Fuel Pump, Injectors, Turbo, Manifolds etc... - Engine is Rear Gear Train Application - Fuel System Configuration is step up for a VP-30 Bosch High Pressure Common Rail (HPCR) Fuel Pump - Outright Pricing: No Core Charge - Standard 12 Months Parts Replacement Warranty - Optional 1 and 2 Year Parts/Labor Extended Warranties Available
Specs: Weight - 705 lbs Configuration - Inline 4 Cylinder (4.5 L) Displacement - 4.5 Liters, 275 cu in Horsepower - 170 HP @2500 RPM Torque - 305 ft/lb @1500 RPM You’ve come to the right place for all of your heavy duty diesel engine needs. We here at Big Bear Engine Company are machine shop guys that know the value of your time whether it be out in the field for an industrial job or at play with an off-road engine swap. We are machine shop guys and guarantee the workmanship of all of our parts including: Cummins QSB 4.5 L Long Block Diesel Engines.