Fraser Engine Rebuilders, Inc.
Revving Up Excellence Since 1961 – Your Journey, Our Power!

CHEVY 6.6L Engine

CHEVY 6.6 Liter Engine 2001-2020

(Kodiak, Topkick, C-4500, C-5500, GMC Sierra, Silverado-2500, Silverada-3500)

Remanufactured Zero Mile Gas Engines


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Fraser Engine Rebuilders, Inc.

Warranty Labor Upgrades Available from Fraser Engines

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  • Standard Option
  • Fraser Advantage



Part No. FEC66D-HD


Remanufactured, High Durability Crate Engine.

Fraser’s Strongest Available Engine!

All OEM Updates & Upgrades Included. Zero Miles.


Warranty: 1 Year / Unlimited Miles, Parts & Labor

Shipping: To Be Determined / Call for Rates

Core Deposit: Call for Details


UNIT COST: $4885.00

Part Type:  Remanufactured Engine Assembly (Factory Spec)

This remanufactured CHEVROLET 6.6L diesel engine includes the following enhancements from Fraser Engines:

  • Bore and hone all cylinders to OEM clearances (We check all clearances within .0001 of inch),
  • Decking cylinder head(s) and block for straightness,
  • Cutting valve seats and valves to proper degree,
  • Line boring/honing crankshaft/camshaft tunnels,
  • Ground & polish crankshaft, new or remanufactured camshaft(s),
  • New main bearings, rod bearings, pistons, piston rings, lifters, pushrods (if equipped), timing components, oil pump, head bolts,
  • All new internal gaskets and seals.
  • All finishing gaskets are included (MAY VARY PER APPLICATION).

CHEVROLET 6.6L Diesel Engines

The Chevrolet 6.6L diesel engine, also known as the Duramax, is a V8 engine designed specifically for heavy-duty trucks, produced by General Motors.

The base engine consists of:

An aluminum engine block and cylinder heads
Dual Overhead Camshafts (DOHC)
Variable Valve Timing (VVT)
Direct Injection

The engine specifications include:

  • A displacement of 403.5 cubic inches (6,599 cubic centimeters)
  • 4.05 in x 3.90 in (103 mm x 99 mm) cylinder bore and piston stroke
  • 16.0:1 compression ratio
  • 250 to 445 horsepower (186 to 332 kW) at 2,800 to 5,600 rpm
  • 460 to 910 lb-ft (624 to 1,234 Nm) of torque at 1,600 to 4,200 rpm

The Chevrolet Duramax debuted in 2001 and has since become a powerhouse in the heavy-duty truck market. Known for its reliability, power, and efficiency, the Duramax has been continuously improved and refined over the years to meet ever-changing regulations and customer demands. It is the choice for many drivers who tow heavy loads, and the engine has been instrumental in the success of the Chevrolet Silverado and GMC Sierra trucks.

The Chevrolet Duramax is used in various Chevrolet and GMC applications, including the Silverado HD, Sierra HD, Express, and Savana. It is also used in the Chevrolet Kodiak, GMC TopKick, and some Navistar International trucks.


The 6.6L Chevrolet diesel engine has been used in various models and years, including:

  • Chevrolet Silverado HD (2001-2020)
  • GMC Sierra HD (2001-2020)
  • Chevrolet Express and GMC Savana vans (2006-2020)
  • Chevrolet Kodiak and GMC Topkick trucks (2003-2009)
  • Chevrolet Suburban and GMC Yukon XL (2011-2014)
  • Chevrolet Colorado and GMC Canyon (2016-2020)


It should be noted that the engine underwent some changes through the years, with some models featuring more powerful versions or different emission control systems.

A core deposit is a charge added to the purchase of most engines or transmissions. We use the term "deposit" because once your new part is installed, we'll graciously pick-up your old engine or transmission free of charge and then refund the core deposit you paid.