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GMC 6.6L DURAMAX Engine Parts For Sale

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Truck Parts (62)
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Engine Parts (62)
   Camshafts (3)    Crankshafts (4)    EGR Coolers (5)    Engine Blocks / Cylinder Blocks (5)    Engine Brackets (2)    Engine Control Modules (ECM) (13)    Engine Harmonic Balancers (7)    Engine Mounts (3)    Engine Oil Coolers (3)    Engine Oil Pans (2)    Engine Oil Pumps (4)    Engine Valve Trains (2)    Front Engine Covers (6)    Valve Covers (3)
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GMC (62)
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6.6L DURAMAX (62)
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For Sale (62)

Showing 1 - 25 of 62 Engine Part Listings

1 - 25 of 62 listings
1 - 25 of 62 listings
GMC 6.6L DURAMAX Engine Block / Cylinder Block for a Chevrolet C4500

2007 GMC 6.6L DURAMAX Engine Block / Cylinder Block for a Chevrolet C4500

Recently Updated
Contact for price
Engine Short Block, Duramax 6.6 Good Condition. Call DTI Trucks for more information and a shipping quote.
ConditionUsed
Fits To Make(s)CHEVROLET
Fits To Model(s)C4500
Stock Number75761
MLS Number13766701
CategoryEngine Blocks / Cylinder Blocks
Last Updated1/6/2026
Location
Wheat Ridge, CO, US
Sold By
DTI Truck Parts
(833) 614-___  SHOW
NUMBERCall Seller
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DTI Truck Parts
GMC 6.6L DURAMAX Engine Block / Cylinder Block for a GMC C5500

2005 GMC 6.6L DURAMAX Engine Block / Cylinder Block for a GMC C5500

Recently Updated
Contact for price
Engine Short Block, 6.6 Duramax Good Condition. Call DTI Trucks for more information and a shipping quote.
ConditionUsed
Fits To Make(s)GMC
Fits To Model(s)C5500
Stock Number72099
MLS Number13487182
CategoryEngine Blocks / Cylinder Blocks
Last Updated1/6/2026
Location
Wheat Ridge, CO, US
Sold By
DTI Truck Parts
(833) 614-___  SHOW
NUMBERCall Seller
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DTI Truck Parts
GMC 6.6L DURAMAX Engine Block / Cylinder Block for a Chevrolet C4500

2005 GMC 6.6L DURAMAX Engine Block / Cylinder Block for a Chevrolet C4500

Recently Updated
Contact for price
Engine Short Block, 6.6D Duramaxx Good Condition. Call DTI Trucks for more information and a shipping quote.
ConditionUsed
Fits To Make(s)CHEVROLET
Fits To Model(s)C4500
Stock Number71888
MLS Number13459961
CategoryEngine Blocks / Cylinder Blocks
Last Updated1/6/2026
Location
Wheat Ridge, CO, US
Sold By
DTI Truck Parts
(833) 614-___  SHOW
NUMBERCall Seller
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DTI Truck Parts
GMC 6.6L DURAMAX Engine Block / Cylinder Block for a GMC C5500

2008 GMC 6.6L DURAMAX Engine Block / Cylinder Block for a GMC C5500

Recently Updated
Contact for price
Engine Short Block, 6.6L Duramaxx Good Condition. Call DTI Trucks for more information and a shipping quote.
ConditionUsed
Fits To Make(s)GMC
Fits To Model(s)C5500
Stock Number70885
MLS Number13396079
CategoryEngine Blocks / Cylinder Blocks
Last Updated1/6/2026
Location
Wheat Ridge, CO, US
Sold By
DTI Truck Parts
(833) 614-___  SHOW
NUMBERCall Seller
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DTI Truck Parts
GMC 6.6L DURAMAX Engine Control Module (ECM) for a GM 6.6 DURAMAX

GMC 6.6L DURAMAX Engine Control Module (ECM) for a GM 6.6 DURAMAX

Price Drop $50 USD
Good used, cleaned and inspected GM 6.6 Duramax LGH glow plug module. Part number: 12642260.
ConditionUsed
Fits To Make(s)GM
Fits To Model(s)6.6 DURAMAX
Part Number12642260
Stock Number1059689
MLS Number13545480
CategoryEngine Control Modules (ECM)
Last Updated1/3/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___  SHOW
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Rydemore Heavy Duty Truck Parts
GMC 6.6L DURAMAX Engine Control Module (ECM) for a GM 6.6 DURAMAX

GMC 6.6L DURAMAX Engine Control Module (ECM) for a GM 6.6 DURAMAX

$200 USD
Good used, cleaned and inspected GM 6.6 Duramax ECM. Part Number: 12646248 30 Day Guarantee for swap or refund if not programmable. ECM's need to be programmed for your application.
ConditionUsed
Fits To Make(s)GM
Fits To Model(s)6.6 DURAMAX
Part Number12646248
Stock NumberRyd 12646248
MLS Number12064263
CategoryEngine Control Modules (ECM)
Last Updated1/1/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___  SHOW
NUMBERCall Seller
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Rydemore Heavy Duty Truck Parts
GMC 6.6L DURAMAX Engine Harmonic Balancer for a GM 6.6 DURAMAX

GMC 6.6L DURAMAX Engine Harmonic Balancer for a GM 6.6 DURAMAX

$75 USD
Good used, cleaned and inspected GM Duramax 6.6 Harmonic Balancer. Part Number: SPN009629
Quantity2
ConditionUsed
Fits To Make(s)GM
Fits To Model(s)6.6 DURAMAX
Part NumberSPN009629
Stock NumberRyd SPN009629
MLS Number10263772
CategoryEngine Harmonic Balancers
Last Updated1/1/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___  SHOW
NUMBERCall Seller
Email Seller
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Rydemore Heavy Duty Truck Parts
GMC 6.6L DURAMAX Engine Harmonic Balancer for a GM 6.6 DURAMAX

GMC 6.6L DURAMAX Engine Harmonic Balancer for a GM 6.6 DURAMAX

$75 USD
Good used, cleaned and inspected GM Duramax 6.6 Harmonic Balancer. Part Number: SPN019298
Quantity8
ConditionUsed
Fits To Make(s)GM
Fits To Model(s)6.6 DURAMAX
Part NumberSPN019298
Stock NumberRyd SPN019298
MLS Number10263773
CategoryEngine Harmonic Balancers
Last Updated1/1/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___  SHOW
NUMBERCall Seller
Email Seller
Save
Rydemore Heavy Duty Truck Parts
GMC 6.6L DURAMAX Engine Harmonic Balancer for a GM 6.6 DURAMAX

GMC 6.6L DURAMAX Engine Harmonic Balancer for a GM 6.6 DURAMAX

$75 USD
Good used, cleaned and inspected GM Duramax 6.6 Harmonic Balancer. Part Number: 70030955371
ConditionUsed
Fits To Make(s)GM
Fits To Model(s)6.6 DURAMAX
Part Number70030955371
Stock NumberRyd 70030955371
MLS Number10265672
CategoryEngine Harmonic Balancers
Last Updated1/1/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___  SHOW
NUMBERCall Seller
Email Seller
Save
Rydemore Heavy Duty Truck Parts
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