Product Description
CPP Reman Cummins 4BT Premium Long Block Crate Engine
The CPP Reman Cummins 4BT Premium Long Block Crate Engine is professionally remanufactured for customers who demand exceptional reliability, long service life, and proven diesel performance. Whether you're replacing a worn-out industrial engine or building a custom 4BT conversion, every engine is built to order using premium components and over 16 years of Cummins engine building experience.
Our premium 3.9L Cummins 4BT long blocks are built using carefully inspected engine blocks, precision-machined components, and trusted parts from manufacturers including Mahle, Interstate McBee, King Bearings, ARP, and optional Hamilton Cams. Every engine is assembled by experienced builders who understand what it takes to produce dependable diesel power.
Why Choose a CPP Premium 4BT Long Block?
- Built to order by experienced Cummins engine builders
- Premium Mahle pistons and internal engine components
- Interstate McBee premium replacement components
- King performance bearings
- ARP fasteners and head studs available
- Optional Hamilton performance camshaft upgrades
- Professionally machined and assembled
- Excellent for diesel conversions and industrial applications
- Over 16 years of Cummins engine building experience
- Layaway plans available
Built for Diesel Conversions
The Cummins 4BT remains one of the most popular diesel conversion engines ever produced. Its compact size, mechanical simplicity, exceptional torque, and legendary reliability make it an outstanding choice for custom vehicle projects and commercial equipment alike.
- Jeep Wrangler conversions
- Toyota pickup conversions
- Land Cruiser conversions
- Ford truck conversions
- Chevrolet truck conversions
- Dodge truck conversions
- Rock crawlers
- Off-road vehicles
- Bread truck replacements
- Agricultural equipment
- Generators
- Industrial equipment
- Marine applications
Premium Components Matter
Every CPP Premium Long Block is built with quality as the priority. We carefully select premium engine components from trusted manufacturers to provide outstanding durability and dependable performance. Depending on your engine configuration, available upgrades include Mahle pistons, Interstate McBee internal components, King Bearings, ARP fasteners, professionally rebuilt cylinder heads with oversized valve seats, and optional Hamilton camshaft upgrades.
Our goal isn't simply to rebuild another engine—it's to build an engine we'd confidently install in our own trucks and equipment.
Built to Order
Every CPP Reman Cummins 4BT Premium Long Block Crate Engine is built to order. Because every build is customized for the customer's application, availability may vary throughout the year.
Please contact CPP Diesel before ordering to discuss current lead times, available options, and your specific project requirements.
Layaway plans are available on qualifying engine builds.
Complete Your 4BT Project
CPP Diesel also offers turbochargers, fuel system upgrades, injection pumps, conversion components, cooling system parts, engine accessories, and performance upgrades to help complete your 4BT build.
Learn More About 4BT Cummins Engines
Looking for more information before starting your project? Visit our CPP Diesel Tech Center for technical articles covering Cummins engine builds, diesel conversions, fuel systems, turbochargers, and performance upgrades.
