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  1. Home
  2. GM Duramax
  3. 2004.5-2005 GM Duramax 6.6L LLY
  4. Fuel Upgrades
  5. Injectors

2004.5-2005 GM Duramax 6.6L LLY Fuel Injectors

Replace your worn fuel injectors with any of these premium aftermarket upgrades we offer for your 2004.5-2005 GM 6.6L Duramax LLY here at Alligator Performance! When your Sierra or Silverado's fuel injectors start to drag you down, choose from any of our premium stock replacements or completely upgraded injectors to start adventuring like a pro again. GM Duramax Fitments: 2004, 2005 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2004.5-2005 6.6L LLY

Products [64]

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Item In Cart 04.5-05 GM 2500/3500HD 6.6L Duramax LLY BD Stock Reman Fuel Injector
04.5-05 GM 2500/3500HD 6.6L Duramax LLY BD Stock Reman Fuel Injector
In Stock. Ships in 1 Business Day!
$315.95 $284.36 Sale
View Details
Item In Cart Dynomite Diesel Oil System Cleaner / Decarbonizer
Dynomite Diesel Oil System Cleaner / Decarbonizer
- Ships from Manufacturer in 7-10 Business Days
$87.00
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Item In Cart Dynomite Diesel Duramax 04.5-05  Injector SET - 100HP
Dynomite Diesel Duramax 04.5-05 Injector SET - 100HP
- Ships from Manufacturer in 7-10 Business Days
$3,795.00
View Details
Item In Cart Dynomite Diesel Duramax 04.5-05 LLY Injector SET - 75HP
Dynomite Diesel Duramax 04.5-05 LLY Injector SET - 75HP
- Ships from Manufacturer in 7-10 Business Days
$3,795.00
View Details
Item In Cart Dynomite Diesel Duramax 04.5-05 LLY Stock Injector (Single Injector)
Dynomite Diesel Duramax 04.5-05 LLY Stock Injector (Single Injector)
In Stock. Ships in 1 Business Day!
$350.00
View Details
Item In Cart PPE 113076000 High Performance Fuel Rail | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
PPE 113076000 High Performance Fuel Rail | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
In Stock. Ships in 1 Business Day!
$638.99
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Item In Cart Industrial 0986435504 R6 100 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Industrial 0986435504 R6 100 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$536.98
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Item In Cart Industrial 0986435504 R3 40 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Industrial 0986435504 R3 40 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$499.95
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Item In Cart Industrial 0986435504 R4 50 Injector | 04.5-05 6.6L Duramax 2500HD / 3500HD  Lly
Industrial 0986435504 R4 50 Injector | 04.5-05 6.6L Duramax 2500HD / 3500HD Lly
- Ships in 3-5 Business Days
$499.95
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Item In Cart Industrial 0986435504 R5 80 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Industrial 0986435504 R5 80 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$499.95
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Item In Cart Industrial 0986435504 R2 30 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  Lly
Industrial 0986435504 R2 30 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD Lly
- Ships in 3-5 Business Days
$448.09
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Item In Cart Industrial Injection 0986435504-IIS OEM Stock Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Industrial Injection 0986435504-IIS OEM Stock Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$319.04
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Item In Cart Industrial 0986435504 R1 20 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Industrial 0986435504 R1 20 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$448.09
View Details
Item In Cart Industrial 0986435504Se R4 Reman 50 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Industrial 0986435504Se R4 Reman 50 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$379.93
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Item In Cart 04.5-05 GM 6.6L Duramax 2500HD / 3500HD Industrial Injection Reman Stock Injector
04.5-05 GM 6.6L Duramax 2500HD / 3500HD Industrial Injection Reman Stock Injector
In Stock. Ships in 1 Business Day!
$282.92
View Details
Item In Cart Industrial 0986435504Dfly New 15 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Industrial 0986435504Dfly New 15 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$448.09
View Details
Item In Cart 04.5-05 GM 6.6L Duramax 2500HD / 3500HD Industrial Injection Reman Stock Injector
04.5-05 GM 6.6L Duramax 2500HD / 3500HD Industrial Injection Reman Stock Injector
In Stock. Ships in 1 Business Day!
$282.92
View Details
Item In Cart Industrial 0986435504Se R3 Reman 40 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Industrial 0986435504Se R3 Reman 40 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$379.93
View Details
Item In Cart Industrial 0986435504Se R1 Reman 20 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Industrial 0986435504Se R1 Reman 20 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$356.48
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Item In Cart Industrial 0986435504Se R5 Reman 80 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Industrial 0986435504Se R5 Reman 80 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$379.93
View Details
Item In Cart Industrial 0986435504Sedfly Reman Dragon Fly 15 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Industrial 0986435504Sedfly Reman Dragon Fly 15 Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
In Stock. Ships in 1 Business Day!
$356.48
View Details
Item In Cart 04.5-05 GM 6.6L Duramax 2500HD / 3500HD Industrial Injection R6 Reman 100% Over Injector
04.5-05 GM 6.6L Duramax 2500HD / 3500HD Industrial Injection R6 Reman 100% Over Injector
- Ships in 3-5 Business Days
$379.93
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Item In Cart Industrial Injection 504COBRA5154 Competition Injector (Max Output 630cc) | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Industrial Injection 504COBRA5154 Competition Injector (Max Output 630cc) | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$683.66
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Item In Cart Merchant 10299 Injector Body Seal Kit | 04.5-07 GM 6.6L Duramax 2500HD / 3500HD
Merchant 10299 Injector Body Seal Kit | 04.5-07 GM 6.6L Duramax 2500HD / 3500HD
In Stock. Ships in 1 Business Day!
$21.96
View Details
Item In Cart Merchant 10298 Injector Copper | 04.5-10 GM 6.6L Duramax 2500HD / 3500HD
Merchant 10298 Injector Copper | 04.5-10 GM 6.6L Duramax 2500HD / 3500HD
In Stock. Ships in 1 Business Day!
$31.60
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Item In Cart Exergy E01-10207 60% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E01-10207 60% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$514.00
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Item In Cart Exergy E01-10205 30% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E01-10205 30% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$490.00
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Item In Cart 04.5-05 GM 6.6L Duramax 2500HD / 3500HD Exergy Sportsman Reman Injector
04.5-05 GM 6.6L Duramax 2500HD / 3500HD Exergy Sportsman Reman Injector
- Ships in 3-5 Business Days
$397.00
View Details
Item In Cart Exergy E01-10206 45% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E01-10206 45% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$502.00
View Details
Item In Cart Exergy E01-10208 100% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E01-10208 100% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$551.00
View Details
Item In Cart Exergy E01-10256 300% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E01-10256 300% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$877.00
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Item In Cart Exergy E01-10250 150% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E01-10250 150% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$595.00
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Item In Cart Exergy E01-10252 200% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E01-10252 200% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$605.00
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Item In Cart Exergy E01-10254 250% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E01-10254 250% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$628.00
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Item In Cart Exergy E01-10260 400% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E01-10260 400% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$895.00
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Item In Cart Exergy E01-10264 500% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E01-10264 500% Over Reman Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$916.00
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Item In Cart 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  Exergy 100% Over Injector
04.5-05 GM 6.6L Duramax 2500HD / 3500HD Exergy 100% Over Injector
- Ships in 3-5 Business Days
$614.00
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Item In Cart Exergy E02-10206 45% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E02-10206 45% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$565.00
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Item In Cart Exergy E02-10205 30% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E02-10205 30% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$552.00
View Details
Item In Cart Exergy E02-10207 60% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E02-10207 60% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$577.00
View Details
Item In Cart Exergy E02-10250 150% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E02-10250 150% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$669.00
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Item In Cart Exergy E02-10252 200% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E02-10252 200% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$682.00
View Details
Item In Cart Exergy E02-10254 250% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E02-10254 250% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$695.00
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Item In Cart Exergy E02-10256 300% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E02-10256 300% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$927.00
View Details
Item In Cart Exergy E02-10260 400% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E02-10260 400% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$946.00
View Details
Item In Cart Exergy E02-10264 500% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E02-10264 500% Over Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$976.00
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Item In Cart Exergy E05-10010 Leak Rail Assembly | 04.5-10 GM 6.6L Duramax 2500HD / 3500HD
Exergy E05-10010 Leak Rail Assembly | 04.5-10 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$60.00
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Item In Cart 04.5-10 GM 6.6L Duramax 2500HD / 3500HD  Exergy Seal Kit
04.5-10 GM 6.6L Duramax 2500HD / 3500HD Exergy Seal Kit
- Ships in 3-5 Business Days
$7.50
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Item In Cart 04.5-10 GM 6.6L Duramax 2500HD / 3500HD Exergy Leak Rail Retaining Clip
04.5-10 GM 6.6L Duramax 2500HD / 3500HD Exergy Leak Rail Retaining Clip
- Ships in 3-5 Business Days
$7.00
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Item In Cart 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  Exergy Inlet Metering Valve
04.5-05 GM 6.6L Duramax 2500HD / 3500HD Exergy Inlet Metering Valve
- Ships in 3-5 Business Days
$177.00
View Details
Item In Cart Exergy E05-10221 Rail Pressure Sensor | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E05-10221 Rail Pressure Sensor | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$235.00
View Details
Item In Cart Exergy E06-10251 Replacement Fuel Rail | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E06-10251 Replacement Fuel Rail | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$320.00
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Item In Cart Exergy E06-10250 Replacement Fuel Rail | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E06-10250 Replacement Fuel Rail | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$280.00
View Details
Item In Cart Exergy E07-00010 High-Pressure Relief Valve | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD  LLY
Exergy E07-00010 High-Pressure Relief Valve | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY
- Ships in 3-5 Business Days
$240.00
View Details
Item In Cart Dynomite NLLY-50 Brand New Injector Set 20 Percent Over 50hp | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Dynomite NLLY-50 Brand New Injector Set 20 Percent Over 50hp | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships from Manufacturer in 7-10 Business Days
$4,295.00
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Item In Cart Dynomite LLY-150 Reman Injector Set 60 Percent Over | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Dynomite LLY-150 Reman Injector Set 60 Percent Over | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships from Manufacturer in 7-10 Business Days
$3,995.00
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Item In Cart Dynomite NLLYNEW Individual Stock Brand New Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Dynomite NLLYNEW Individual Stock Brand New Injector | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships from Manufacturer in 7-10 Business Days
$465.00
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Item In Cart Dynomite LLY-ECO Economy Series Reman Injector Set | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Dynomite LLY-ECO Economy Series Reman Injector Set | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships from Manufacturer in 7-10 Business Days
$3,795.00
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Item In Cart Dynomite NLLY-200 Brand New 100 Percent Over SAC Injector Set | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Dynomite NLLY-200 Brand New 100 Percent Over SAC Injector Set | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships from Manufacturer in 7-10 Business Days
$4,695.00
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Item In Cart Dynomite NLLY-150 Brand New Injector Set 60 Percent Over | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Dynomite NLLY-150 Brand New Injector Set 60 Percent Over | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships from Manufacturer in 7-10 Business Days
$4,495.00
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Item In Cart Dynomite NLLY-75 Brand New Injector Set 30 Percent Over 75hp | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Dynomite NLLY-75 Brand New Injector Set 30 Percent Over 75hp | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships from Manufacturer in 7-10 Business Days
$4,295.00
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Item In Cart Dynomite NLLY-300 Brand New 150 Percent Over SAC Injector Set | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Dynomite NLLY-300 Brand New 150 Percent Over SAC Injector Set | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships from Manufacturer in 7-10 Business Days
$4,695.00
View Details
Item In Cart Dynomite NLLY-100 Brand New Injector Set 45 Percent Over 100hp | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
Dynomite NLLY-100 Brand New Injector Set 45 Percent Over 100hp | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD
- Ships from Manufacturer in 7-10 Business Days
$4,295.00
View Details
Item In Cart Wehrli WCF100229 High Flow Rail Fitting (Short) | 01-05 & 11-16 GM 6.6L Duramax 2500HD / 3500HD
Wehrli WCF100229 High Flow Rail Fitting (Short) | 01-05 & 11-16 GM 6.6L Duramax 2500HD / 3500HD
- In Stock. Ships in 3-5 business days.
$37.83
View Details
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