SKU #: DJ-DJPLB100015 MPN #: DJPLB100015

D&J Heavy Hauler Common Rail Long Block Engine 04.5-07 Ram 5.9L Cummins

Name: D&J Heavy Hauler Common Rail Long Block Engine 04.5-07 Ram 5.9L Cummins
Brand: D&J Precision Machine
Price: 13112.99 USD
Availability: InStock

$13,112.99

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D&J Heavy Hauler Common Rail Long Block Engine 04.5-07 Ram 5.9L Cummins

Technical specifications of a 'Heavy Hauler' engine with 700 HP on a white background.

Description

Do you want to rebuild your Cummins with something that can handle serious power and be reliable? This Long Block from D&J Precision Machine is designed for people who are pushing their trucks harder than stock is meant to handle. This isn’t your typical reman engine; it’s a fully upgraded long block built to handle higher horsepower, heavier loads, and the kind of stress that comes with towing, tuning, and real-world diesel use. From the moment it’s installed, this setup delivers a stronger, more stable foundation with improved airflow, better valvetrain control, and the durability to withstand boost. It’s built for trucks that work, tow, and have added power, giving you confidence that your engine can take what you throw at it. If you’re tired of worrying about weak links, this is the kind of engine that lets you actually use your truck the way it was meant to be used. Each HP Reman Extreme long block starts as a fully disassembled core that’s crack-checked, cleaned, and precision-machined using CNC blueprinting processes to restore and optimize all critical tolerances. The block is bored, honed, and decked, while rotating assembly components are measured and corrected to ensure proper clearances and long-term durability. What sets this package apart is the performance-focused build strategy. These engines are fully assembled from the oil pan up and include upgraded internal components and airflow improvements designed to handle increased cylinder pressure and boost. Assembly is completed using high-quality components and strict quality control standards, pre-lubed and checked before delivery, ensuring readiness out of the box. The result is a long block that delivers improved strength, better airflow, and the reliability needed for high-demand diesel applications, making it a serious step up from a standard reman engine.

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Do you want to rebuild your Cummins with something that can handle serious power and be reliable? This Long Block from D&J Precision Machine is designed for people who are pushing their trucks harder than stock is meant to handle. This isn’t your typical reman engine; it’s a fully upgraded long block built to handle higher horsepower, heavier loads, and the kind of stress that comes with towing, tuning, and real-world diesel use.

From the moment it’s installed, this setup delivers a stronger, more stable foundation with improved airflow, better valvetrain control, and the durability to withstand boost. It’s built for trucks that work, tow, and have added power, giving you confidence that your engine can take what you throw at it. If you’re tired of worrying about weak links, this is the kind of engine that lets you actually use your truck the way it was meant to be used.

Each HP Reman Extreme long block starts as a fully disassembled core that’s crack-checked, cleaned, and precision-machined using CNC blueprinting processes to restore and optimize all critical tolerances. The block is bored, honed, and decked, while rotating assembly components are measured and corrected to ensure proper clearances and long-term durability.

What sets this package apart is the performance-focused build strategy. These engines are fully assembled from the oil pan up and include upgraded internal components and airflow improvements designed to handle increased cylinder pressure and boost.

Assembly is completed using high-quality components and strict quality control standards, pre-lubed and checked before delivery, ensuring readiness out of the box. The result is a long block that delivers improved strength, better airflow, and the reliability needed for high-demand diesel applications, making it a serious step up from a standard reman engine.

NOT LEGAL FOR SALE OR USE IN CALIFORNIA

Vehicle Fitment

2004.5-2007 Ram 5.9L Cummins

WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

FEATURES & BENEFITS:

Comprehensive Inspection: Disassembled, crack-checked, blasted, and cleaned before machining.
Precision Machining: CNC bored, line bored, surfaced as needed, and torque plate honed to exact specifications.
Custom ARP Head Studs: 9/16" head studs provide the best head-to-block seal possible.
High-Performance Cylinder Head: D&J Stage 1 Performance Cylinder Heads are disassembled, crack-checked, fitted with extra-large heavy-duty seats, machined for thread-in soft plugs, and 5-axis CNC ported. Each head undergoes a CNC high-performance valve job and is pressure-checked before assembly and painting.
Blueprinted and Balanced: All engines are blueprinted, balanced, oil clearance measured, and rings file fit.
Pre-lubed and Painted: Engines are painted black and shipped pre-lubed with break-in oil and filter included.
Machined Rocker Box and Pedestals: Ensures a precise fit and optimal performance.
High Power Rating: Rated for up to 700 hp, suitable for high-demand applications.

KIT CONTENTS:

New Pistons
12mm ARP main studs
D&J ARP 9/16" Head Studs torqued to 175 ft/lbs
D&J HD 7/16" Pushrods
D&J 200 CFM Stage 1 High-Performance Cylinder Head
D&J tow performance cast cam
New Tappets
New Oil Cooler
New Oil Pump
New Crankshaft Seals
Billet soft plugs (front, rear, and side)
Reconditioned stock connecting rods
Front cover installed
Machined rocker box
Machined rocker pedestals
Pre-lubed with break-in oil and filter included
Pressure-checked cooling system and crankcase to ensure no leaks on installation

High-Performance Cylinder Head Includes:

All new HD bronze valve guides installed
Heavy-duty extra-large intake and exhaust seats installed
Industry-leading 5-axis CNC port job
Thread-in soft plugs under the valve cover
High-performance CNC valve job performed
New valve seals and soft plugs installed
New 105# springs installed

About D&J Precision Machine

D&J Precision Machine is the name serious diesel enthusiasts trust for premium engine components engineered to handle extreme power, boost, and stress. From street-driven trucks to record-setting race builds, D&J provides the parts and expertise to push diesel performance to its absolute limits. Founded on a commitment to excellence and innovation, D&J has established itself as a leader in the high-performance diesel engine world. Whether you're building a reliable workhorse or a full competition drag or sled pull setup, D&J components are precision-built to deliver maximum power and unmatched durability. Known for race-winning cylinder heads, intake manifolds, short blocks, long blocks, and complete custom engines, D&J brings cutting-edge engineering and craftsmanship to every component. Every product is developed, machined, and assembled in the USA at D&J’s advanced facility. With in-house CNC machining, rigorous quality control, and a team of diesel performance experts, D&J ensures every component meets the strictest standards for performance and longevity. Whether it’s a forged long block built to handle over 2,000 horsepower or a flow-optimized head for better airflow and cooling, D&J’s diesel solutions are crafted with precision and built to win. D&J PRECISION MACHINE: DIESEL PERFORMANCE WITHOUT COMPROMISE D&J Precision Machine isn’t just about horsepower, it’s about building confidence. Builders and racers around the world rely on D&J because they know each product is designed for real-world abuse and engineered to last.When it’s time to go beyond stock and into elite performance territory, D&J Precision Machine delivers the diesel power, strength, and reliability you need to dominate the street, trail, or track. FREQUENTLY ASKED QUESTIONS We get a lot of calls and e-mails each day with various product, vehicle, and installation questions. Some are completely off the wall and can even catch us off guard at times, but many others are fairly routine, so we thought we'd post some of the most popular questions regarding D&J Precision Machine that can hopefully be a good resource for you. Q: What makes D&J Precision Machine products superior to OEM components? A: D&J Precision Machine components are built for unmatched strength, precision, and performance. These parts exceed OEM standards by utilizing advanced engineering and premium-grade materials, offering superior durability and power output for high-performance and racing applications. Q: What types of products does D&J Precision Machine manufacture? A: D&J offers a comprehensive lineup of performance diesel engine components, including billet cylinder heads, intake manifolds, short blocks, long blocks, race engines, and valvetrain upgrades. Their products are designed for everything from daily-driven trucks to full-blown competition builds. Q: Are D&J Precision Machine products suitable for performance applications? A: Absolutely. D&J is known for building race-winning engines and components that handle extreme horsepower, high boost levels, and demanding conditions. Their products are trusted by top-tier racers and serious diesel enthusiasts alike. Q: Are D&J Precision Machine parts compatible with any diesel engine? A: D&J specializes in high-performance diesel platforms, particularly Cummins engines, offering solutions for 5.9L, 6.7L, and competition-only variants. Each product is engineered for a precise fit and optimal integration with performance builds. Q: Why is upgrading to D&J Precision Machine components beneficial? A: Upgrading improves engine reliability, airflow, and power potential. These components are crafted for high-stress environments and are ideal for builds where OEM parts would fail under heavy loads or prolonged abuse. The result is a more capable and longer-lasting performance engine. Q: Where are D&J Precision Machine products made? A: All products are proudly designed and manufactured in the USA, with a focus on precision machining, top-tier materials, and rigorous quality control to ensure race-ready results. Q: Can D&J Precision Machine components be installed without professional help? A: While some components may be installed by experienced enthusiasts, most products, especially complete engines and head assemblies are best installed by professionals to guarantee proper setup, fitment, and performance. Q: Do D&J Precision Machine parts come with a warranty? A: Yes, warranty coverage is available and varies by product type. Specific warranty terms are provided with each item and should be reviewed before installation. Q: What is the history of D&J Precision Machine? A: Founded by passionate diesel performance specialists, D&J Precision Machine has built a reputation for engineering excellence and racing dominance. With years of engine-building experience and a commitment to innovation, D&J remains a trusted leader in the world of high-performance diesel.

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