Whether you’re looking for a crate engine, are performing a diesel conversion, or need a fresh engine rebuild, our remanufactured Cummins 4BT (3.9 L) options can get you up and running—and keep you running—for the long-haul. We offer two types of Cummins 4BT Engines: Long Blocks and Extended Long Block Engines.

Get the CPP Diesel Cummins 3.9L 4BT Long Block Crate Engine for unbeatable reliability and performance. Fresh, core charge-free, with one-year warranty. Ideal for diverse applications.

Revive the performance of Cummins 4BT and 6BT engines with cylinder blocks from Diesel Parts Direct. Extreme overheating can cause cracks in the cylinder block, resulting in blue or blackish-gray smoke and poor performance of your engine. Bring your B Series engine back to life with 3.9 and 5.9 Cummins engine blocks from our online store.

Get a durable and precise 4BT Cummins block with tight tolerance slots for strength and accuracy. Built to match the Cummins 3.9L 4BT engine for reliable performance.

Master the roads, conquer the trails, and seize a world of power with our CPP Diesel Cummins 4BT Long Block Crate Engine. Designed for the 1989-1998 Cummins 3.9L 4BT, this compact powerhouse promises unparalleled efficiency and reliability, delivering...

Our Cummins 4BT long blocks come in three different styles based upon the most popular fuel pump options: Bosch A Inline Pump, Bosch P-7100 or P-3000 Inline Pump or the Delphi/Lucas Cav/Bosch VE, VP15 Rotary Fuel Pump. Each 4B long block is configured with different gear housings and front covers to accommodate the appropriate fuel pump.

2025年2月19日 · Here At North American Diesel Parts We Strive To Bring You The Parts You Need For Your Diesel Engine, We Sell: Crankshafts - Camshafts - Cylinder Heads - Complete …

Engine: Cummins 3.9 4BT. Our patent-pending tab-and-slot version of the mock up block provides accurate mounting positions of engine accessories and bolt-ons. Durable steel construction resists heat from welding, so unlike foam blocks, custom …

Master the roads, conquer the trails, and seize a world of power with our CPP Diesel Cummins 4BT Long Block Crate Engine. Designed for the 1989-1998 Cummins 3.9L 4BT, this compact powerhouse promises unparalleled efficiency and reliability, delivering unbeatable performance with every turn of the key.

Big Bear Engine Company has all of your Cummins and Cat diesel engine parts including the Cummins 4BT - 140HP Extended Long Block Diesel Engine