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  • Used 6.6L Duramax Diesel Engine for Sale – Tested Complete Long Block with Turbo & Harness, Low Mileage OEM Replacement

Used 6.6L Duramax Diesel Engine for Sale – Tested Complete Long Block with Turbo & Harness, Low Mileage OEM Replacement

Used 6.6L Duramax Diesel Engine for Sale – Tested Complete Long Block with Turbo & Harness, Low Mileage OEM Replacement

Product Overview

The Used 6.6L Duramax Diesel Engine is a high-performance V8 turbocharged diesel powerplant designed for heavy-duty pickup trucks and commercial applications. Known for its strong torque output, durability, and towing capability, this engine is a preferred OEM replacement solution for workshop rebuilders, fleet operators, exporters, and vehicle owners seeking a cost-effective alternative to a brand-new engine.

Each engine is compression tested, visually inspected, and verified for major component integrity prior to dispatch. Available as a complete long block or dressed engine package depending on customer requirements.


Key Features & Benefits

  • 6.6L V8 Turbocharged Diesel Configuration
  • Strong low-end torque for towing and hauling
  • OEM factory engine (not remanufactured unless specified)
  • Cost-effective replacement solution
  • Suitable for fleet maintenance & export markets
  • Compression tested before shipment
  • Optional accessories available
  • Secure palletized export packaging

Compatible Applications

This 6.6L Duramax engine is commonly used in heavy-duty pickup trucks such as:

  • Chevrolet Silverado 2500HD
  • Chevrolet Silverado 3500HD
  • GMC Sierra 2500HD
  • GMC Sierra 3500HD

(Model compatibility depends on engine code/year — please confirm VIN before purchase.)


Technical Specifications

SpecificationDetails
Engine Type6.6L V8 Turbocharged Diesel
Configuration90° V8
Displacement6.6 Liters (403 CID)
Fuel SystemHigh-Pressure Common Rail Direct Injection
AspirationTurbocharged (Variable Geometry Turbo depending on model)
Cooling SystemLiquid Cooled
Block MaterialCast Iron
Cylinder HeadsAluminum
ValvetrainOHV, 4 Valves per Cylinder
Compression RatioApprox. 16.0:1 (varies by generation)
Horsepower Range300 – 445 HP (depending on year/model)
Torque Range520 – 910 lb-ft (depending on year/model)
Emission SystemEGR / DPF / SCR (varies by model year)
Fuel TypeUltra Low Sulfur Diesel
Engine ConditionUsed – Tested & Inspected
Mileage RangeLow to Moderate (varies by stock availability)
Warranty30–90 Days Limited Warranty (optional extended coverage available)
PackagingHeat-treated export pallet, shrink-wrapped

Available Package Options

We offer flexible supply formats depending on your needs:

1️⃣ Long Block

  • Engine block
  • Cylinder heads
  • Internal rotating assembly

2️⃣ Complete Engine Assembly

  • Long block
  • Turbocharger
  • Fuel injectors
  • High-pressure fuel pump
  • Intake & exhaust manifolds
  • Wiring harness (uncut, optional)
  • ECU (optional)
  • Starter & alternator (optional)

Inspection & Quality Control

Before shipment, each engine undergoes:

  • Compression testing
  • Visual inspection
  • Oil contamination check
  • External damage inspection
  • ID verification
  • Leak check (where applicable)

Startup video available upon request (if engine is in running condition before removal).


Why Choose Our Used Duramax Engines?

✔ OEM factory original engine
✔ Export-ready packaging
✔ Competitive wholesale pricing
✔ Fast global shipping
✔ Suitable for mechanics, rebuilders & exporters
✔ Bulk order discounts available


Shipping & Logistics

  • Worldwide shipping available
  • Air freight or sea freight options
  • Proper documentation provided for export
  • HS Code documentation available upon request

Ideal For

  • Engine replacement projects
  • Fleet repair & maintenance
  • Auto workshops
  • Export traders
  • Performance rebuild base platform

Ordering Information

To receive an accurate quotation, please provide:

  • Vehicle VIN number
  • Model year
  • Required engine code
  • Delivery address
  • Contact name, email & phone number

Our team will confirm compatibility and provide pricing, availability, and shipping cost promptly.


Important Notice

This is a used OEM engine. Normal cosmetic wear may be present. Availability varies depending on stock. Specifications may differ slightly depending on engine generation (LB7, LLY, LBZ, LMM, LML, L5P). Please confirm exact model before purchase.


If you are looking for a reliable, tested 6.6L Duramax diesel engine for your heavy-duty truck, contact us today for stock availability and best wholesale pricing.

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ABOUT AUTHOR

Car Service City is a nationwide, award-winning network of over 80 servicing and repairs workshops for all makes of cars and bakkies.

We don’t compete on hype,  we lead on standards, Full inspections., Startup verification. Secure palletized dispatch. Extended Warranty-backed confidence.

If it carries our name, it meets the benchmark, you need an Engine Upgrade you are at the right.  Check Out our Business ID on California Secretary of state, we are 100% legitimate. 

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