GMC 20200915-1-C121 Diesel Engine Motor 6.6L V8 124K LOT2680

( Manufacturer Part Number: 20200915-1-C121 ), ( Part Type: Engine Motor ), ( Oe/oem Part Number: Oem )

Review GMC 0915-1-c121 6.6l V8 Complete Diesel Engine Motor 124k Oem Lot2680 fits SIERRA 2500HD 2017–2024

Introducing the GMC 2020 1500 Series 2500HD 6.6L V8 Diesel Engine Motor, a powerful and efficient powertrain option for your heavy-duty truck. This motor, identified by the part number 17-246121-C121, is a 6.6-liter diesel engine specifically designed to meet the demands of commercial and high-performance use.

The V8 configuration of this engine provides a robust foundation for delivering exceptional torque and horsepower. With 124,000 miles on the odometer (lot number 2680), this motor has seen some use but still retains its impressive capabilities.

1. Duramax Turbo Diesel Engine: This engine is part of the Duramax family, which is renowned for its durability, reliability, and impressive fuel efficiency. The engine utilizes a sequential turbo system, which improves engine performance across the entire RPM range.

2. Balanced Design: The engine block is cast from compacted graphite iron, a material that provides superior strength and durability. The crankshaft and connecting rods are also made from forged steel, ensuring long-lasting performance.

3. Advanced Emission System: This engine meets stringent emissions requirements through the use of a Selective Catalytic Reduction (SCR) system. The SCR system utilizes diesel exhaust fluid (DEF) to reduce harmful emissions, ensuring compliance with current emissions standards.

4. Electric Heater: The engine comes equipped with an electric heater, which helps improve cold-weather performance by keeping the engine oil and coolant warm, allowing for quicker starts in cold weather.

5. Heavy-Duty Cooling System: The engine features a robust cooling system, which includes a large radiator, heavy-duty water pump, and a supplemental cooling system. This system helps maintain optimal operating temperatures, even in the most demanding conditions.

6. MDS Technology: Multi-Displacement System (MDS) technology helps improve fuel efficiency by deactivating cylinders under light load conditions. This feature helps reduce fuel consumption and improve overall vehicle efficiency.

7. Durability: The engine is built to withstand heavy-duty use, featuring durable components such as cast iron cylinder liners, forged steel crankshaft and connecting rods, and a reinforced block structure.

8. Power: The 6.6L V8 Diesel Engine Motor delivers impressive power and torque, making it an excellent choice for towing heavy loads or hauling heavy cargo.

In conclusion, the GMC 2020 1500 Series 2500HD 6.6L V8 Diesel Engine Motor is a powerful, efficient, and durable powertrain option for heavy-duty use. With its impressive torque, horsepower, and advanced emission system, this motor is an excellent choice for those who demand the best from their truck. Whether you're towing heavy loads, hauling cargo, or simply looking for a reliable and efficient powertrain, the 6.6L V8 Diesel Engine Motor is an excellent choice.

The GMC 2020 1500 series 2500HD 6.6L V8 Diesel Engine with the motor number 17-24 and Lot number 124k (Lot2680) is a heavy-duty pickup truck engine. Here are some potential pros and cons based on general information about this engine model:

1. High towing capacity: The 6.6L V8 Diesel engine is known for its impressive towing capacity, making it a popular choice for those who need to haul heavy loads.

2. Durability: Diesel engines are generally more durable than gasoline engines, and the 6.6L V8 Diesel engine is no exception. It has a robust design and can last for a long time with proper maintenance.

3. Fuel efficiency: Diesel engines are more fuel-efficient than gasoline engines, which can save money on fuel costs in the long run.

4. Power: The 6.6L V8 Diesel engine offers plenty of power, making it capable of tackling tough jobs with ease.

5. Torque: Diesel engines produce more torque than gasoline engines, which helps with towing and hauling heavy loads.

1. Cost: Diesel engines can be more expensive to purchase and maintain than gasoline engines due to their complexity and the cost of diesel fuel.

2. Emissions: Diesel engines produce more pollutants than gasoline engines, which can contribute to air pollution and may require additional emissions equipment.

3. Noise: Diesel engines are generally louder than gasoline engines, which can be a downside for those who value a quiet ride.

4. Maintenance: Diesel engines require more frequent maintenance than gasoline engines, including regular oil changes and fuel filter replacements.

5. Complexity: Diesel engines are more complex than gasoline engines, which can make them more difficult to diagnose and repair if something goes wrong.

The GMC 2020 2500HD 6.6L V8 Diesel Engine (17-24, Lot124k) has its strengths and weaknesses. Its impressive towing capacity, durability, fuel efficiency, power, and torque make it a popular choice for heavy-duty applications. However, its higher cost, emissions, noise, maintenance requirements, and complexity are important considerations. Ultimately, the decision to buy this engine depends on your specific needs, budget, and preferences. If you frequently need to tow heavy loads and have the budget for the additional costs, then the 6.6L V8 Diesel engine may be the right choice for you. However, if you prioritize a quieter, less complex engine with lower maintenance requirements and lower fuel costs, then you may want to consider a gasoline engine instead.

Details:

Model: Sierra 2500HD. Body Style: Truck. Trim: Denali.

Engine Specs: 6.6L V8 Dramas. This Is An OEM 6.6L 4X4 V8 Dramas Turbo Diesel Engine Motor Block For A 2017 2023 GMC Sierra 2500HD 3500HD Denali, item is in GREAT working used condition. Transmission: Automatic. Interior Color: Brown / Black.

Exterior Color: Black. NOT INCLUDED: Alternator, Power Steering Pump, Starter, A/C Compressor, Turbocharger.

part #: 202009151c121 price

• $5998.00

specifications grokengines:

• for models: 2500hd, Sierra
• for makes: Gmc
• for years: 2017-2024
• mpn: 20200915-1-c121
• part type: Engine Motor
• oe/oem part number: Oem

returns grokengines:

• policy: Returns Accepted
• time: 30 Days
• paid by: Buyer

offer grokengines:

• best offers: True
• quantity: 1
• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: January 2, 2026

payments grokengines:

• other
• credit card: Diners-club
• wallet: Apple-pay

seller grokengines:

• rating: 99.4%
• city: Inman, South Carolina
• # reviews: 9920

general grokengines:

• Car Truck Parts Accessories > Engines Engine Parts > Engines
• condition: Used

shipping grokengines:

• type: Fixed
• cost: $400.00
• class: Freight
• service: Flat Rate Freight

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