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Find versatile Cummins 5.9L QSB/ISB Diesel Engines in Long Block or Complete Drop-In configurations. Ideal for walk-in vans, buses, yard tractors, conventional cabs, and QSB for construction/industrial uses,...

Find robust Cummins M11 10.8L Diesel Engines in Basic Long Block configuration. These inline-6 engines (1994-end of production, including CELECT Plus and ISM variants) deliver 280-500hp for heavy-duty...

Find powerful Cummins X15 15.0L Diesel Engines (2017-2020, 400-605 HP) in Inline-6 Long Block, Long Block Premium, or Special builds. Ideal for long-haul, vocational trucks, buses, and heavy...

Find reliable Cummins ISM 10.8L Inline-6 Diesel Engines in Basic Long Block configuration. Ideal for vocational trucks, transit buses, RVs, and industrial equipment, these engines are proudly assembled...

Find robust Caterpillar 3126 / C7 7.2L Diesel Engines in Long Block, Long Block Plus, Drop-In, or Electronic Complete configurations. Ideal for 1996+ class 6-8 trucks, buses, vocational,...

Find versatile Caterpillar 3208 10.4L Diesel Engines in Long Block, Drop-In, or Marine Long Block configurations. Ideal for delivery, dump, garbage trucks, school buses, agricultural, industrial, and marine...

Need a Caterpillar 3176C Diesel Engine? Find reliable 10.3L inline-6 options in Basic Long Block or Complete Drop-In configurations. These electronically controlled engines are perfect for heavy-duty trucks...