5 Laws That Anyone Working In Buy Dodge Ram Truck Engine Should Be Aware Of

· 5 min read
5 Laws That Anyone Working In Buy Dodge Ram Truck Engine Should Be Aware Of

The Ultimate Guide to Buying a Dodge Ram Truck Engine: Everything You Need to Know

For years, the Ram truck-- previously the Dodge Ram-- has stood as a titan of American engineering. Known for its rugged capability, hauling power, and distinct styling, a Ram truck is typically a long-lasting buddy for its owner. However, even the most resilient devices reach a point where the heart of the lorry-- the engine-- starts to fail. Whether  Dodge Ram Engine Part  is due to high mileage, disastrous mechanical failure, or a desire for an efficiency upgrade, purchasing a replacement engine is a substantial investment.

This guide supplies a comprehensive summary for those looking to purchase a Dodge Ram truck engine, covering the kinds of engines available, the differences between grabbing new versus used, and the technical requirements needed to make a notified decision.


Comprehending the Ram Engine Lineup

Before proceeding with a purchase, it is important to understand which engine belongs in which generation of the Ram truck. For many years, Chrysler (and subsequently Stellantis) has fine-tuned its lineup to include high-displacement V8s, fuel-efficient V6s, and world-renowned diesel powerhouses.

1. The Legendary 5.7 L HEMI ® V8

The HEMI is maybe the most iconic engine related to the Ram 1500. Given that its reintroduction in 2003, it has ended up being synonymous with "Mopar" power. It features a hemispherical combustion chamber that permits better airflow and higher pressure, resulting in impressive horse power and torque.

2. The 6.7 L Cummins ® Turbo Diesel

For those who own a Ram 2500 or 3500 Heavy Duty, the Cummins engine is the gold standard. Understood for its severe longevity and massive torque output, it is the preferred option for heavy towing and commercial work.

3. The 3.6 L Pentastar ™ V6

Presented as a more fuel-efficient alternative for the light-duty Ram 1500, the Pentastar V6 uses variable valve timing (VVT) to stabilize power and economy. It is an outstanding choice for motorists who use their trucks as day-to-day commuters rather than heavy-duty workhorses.

4. The 4.7 L Magnum V8

Found regularly in older 2000s models, the 4.7 L Magnum was a precursor to the widespread usage of the 5.7 L HEMI. While less powerful, much of these trucks remain on the road, creating a steady demand for replacement Magnum engines.


Technical Specifications Comparison

When buying a replacement engine, matching the specifications to your truck's requirements is non-negotiable. Below is a contrast of the most common engines found in Ram trucks over the last 20 years.

Engine TypeDisplacementFuel TypeCommon HorsepowerCommon TorqueFinest Use Case
Pentastar V63.6 LGasoline305 hp269 lb-ftLight duty, fuel economy
Magnum V84.7 LGas235 - 310 hp295 - 330 lb-ftMid-range older models
HEMI V85.7 LFuel345 - 395 hp375 - 410 lb-ftGeneral towing, performance
HEMI V86.4 LGasoline410 hp429 lb-ftSturdy work (Gas)
Cummins I66.7 LDiesel370 - 420 hp850 - 1,075 lb-ftExtreme towing, longevity

New, Remanufactured, or Used: Which is Right for You?

Among the most vital choices in the buying process is the "condition" classification of the engine. Each includes its own set of benefits and drawbacks regarding expense and reliability.

New Engines (Crate Engines)

Buying a new "dog crate" engine straight from Mopar or authorized dealers guarantees that every component is fresh from the factory.

  • Pros: Maximum life expectancy, absolutely no miles, thorough factory guarantee.
  • Cons: The most pricey alternative; may exceed the overall market price of an older truck.

Remanufactured Engines

A remanufactured engine is a used engine that has been entirely disassembled, cleaned up, and inspected. Any worn parts are changed with brand-new components, and the engine is machined to fulfill initial equipment maker (OEM) specifications.

  • Pros: Often equivalent from new performance-wise, typically consists of a multi-year warranty, more economical than brand-new.
  • Cons: Quality depends heavily on the company doing the remanufacturing.

Used Engines (Recycled)

These are pulled straight from donor lorries-- normally trucks that were associated with mishaps however had operating engines.

  • Pros: The least pricey method to get a truck back on the road.
  • Cons: Unknown history, restricted warranty (typically 30-- 90 days), risk of undiagnosed internal wear.

Vital Checklist Before You Buy

To guarantee a smooth deal and avoid the purchase of an incompatible motor, follow this important list.

  1. Verify the VIN (Vehicle Identification Number): The 8th digit of your VIN is the engine code. Constantly provide this to the seller to ensure the displacement and setup match your truck's computer system.
  2. Examine for "Long Block" vs. "Short Block":
  • A Short Block includes the block, crankshaft, pistons, and connecting rods.
  • A Long Block consists of whatever in the short block plus the cylinder heads, camshaft, and valvetrain. Many purchasers prefer a Long Block for a simpler installation.
  1. Verify the "Core Charge": Most sellers require you to return your old, broken engine (the "core"). If you do not, you will likely be charged a core fee varying from ₤ 500 to ₤ 2,000.
  2. Examine the Warranty Terms: Does the warranty cover labor costs if the replacement engine fails, or just the parts? This is a crucial difference for those paying a mechanic for installation.
  3. Review Maintenance Records: If buying a used engine, request for the CARFAX of the donor automobile or proof of oil changes.

Indication That You Need a New Engine

Before devoting to a multi-thousand-dollar purchase, ensure your current engine can not be conserved by simpler repair work. Typical signs that a Ram engine is beyond repair work include:

  • The "HEMI Tick": While sometimes just a manifold bolt problem, a loud, consistent metallic ticking can symbolize lifter failure and camshaft damage.
  • Extreme Oil Consumption: If the engine is burning through quarts of oil without a noticeable leakage, the piston rings or valve seals are likely stopping working.
  • Metal Shavings in Oil: Finding "shine" or metal flakes during an oil change suggests that internal bearings are breaking down.
  • Coolant in the Oil: A milky "chocolate milk" appearance on the dipstick suggests a split block or a blown head gasket.

Frequently Asked Questions (FAQ)

How much does it cost to change a Dodge Ram engine?

Depending on the year and engine type, expenses generally range from ₤ 4,000 to ₤ 12,000. A pre-owned 4.7 L engine may be on the lower end, while a remanufactured 6.7 L Cummins diesel can quickly go beyond ₤ 10,000 for the system alone. Labor costs generally include another ₤ 1,500 to ₤ 3,000.

Can I swap a V6 for a V8 HEMI?

While a "HEMI swap" is physically possible, it is technically complicated. It requires not only the engine however likewise a new transmission, wiring harness, engine control module (ECM), and cooling system elements. It is nearly always more cost-efficient to sell the V6 truck and purchase a V8-equipped design.

For how long do Cummins engines generally last?

With correct upkeep, a 6.7 L Cummins engine can last 300,000 to 500,000 miles. On the other hand, a gas 5.7 L HEMI normally lasts between 200,000 and 250,000 miles before needing considerable overhaul.

Is the 5.7 L HEMI a dependable engine?

Yes, it is considered among the most trusted V8s on the marketplace. However, it is sensitive to oil change intervals. Utilizing the wrong viscosity or neglecting oil modifications can lead to early wear of the Multi-Displacement System (MDS) lifters.


Purchasing a replacement engine for a Dodge Ram is a significant undertaking, however it is often the most rational course to extending the life of a trusted car. By understanding the requirements of your particular model, weighing the advantages of remanufactured units versus utilized ones, and carrying out due diligence on guarantees and VIN compatibility, you can ensure your Ram truck remains on the roadway for years to come. Whether you are seeking the raw power of the HEMI or the legendary endurance of a Cummins, the best engine is out there to help you complete the task.