Embrace Your Tameless

2004.5-2005 6.6L LLY DURAMAX

Heads, valve train, fasteners

engine parts & accessories

Turbos, clamps, & replacement parts

TURBOS & ACCESSORIES

Intakes, Air Filters, Intake Manifolds

AIR INTAKE SYSTEMs & FILTERS

Fuel pumps, injectors, & accessories

FUEL SYSTEM UPGRADES

Cooler Lines, oil Pans, Electronics

Transmissions & accessories

axle shafts, steering boxes, Brakes

drivetrain & chassis

Lift Kits, Body Mounts, Shocks

Suspension & Steering

manifold, head studs, main studs

HEAD STUDS & FASTENERS

2020-2024 6.6L L5P Duramax2017-2019 6.6L L5P Duramax2011-2016 6.6L LML Duramax2007.5-2010 6.6L LMM Duramax2006-2007 6.6L LLY/LBZ Duramax2001-2004 6.6L LB7 Duramax

2004.5-2005 6.6L LLY Duramax

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224 products
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29% off
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2001-24 Chevy/GMC 6.6L Duramax Gator Heavy Duty Harmonic Damper Bolt HDB66
$29.99 $41.99 Sale
2001-2016 GM Fuel Primer Bulb Sealing Kit 2001-2016 GM 2500/3500 Fleece Performance view 1
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2001-2016 GM Fuel Primer Bulb Sealing Kit 2001-2016 GM 2500/3500 Fleece Performance
$37.95
2001-2016 Duramax Oil Cap Red Fleece Performance view 1
2001-2016 Duramax Oil Cap Red Fleece Performance
$33.99
2001-2016 Duramax Oil Cap Blue Fleece Performance view 1
2001-2016 Duramax Oil Cap Blue Fleece Performance
$33.99
2001-2016 Duramax Oil Cap Black Fleece Performance view 1
2001-2016 Duramax Oil Cap Black Fleece Performance
$33.99
2001-2016 AlliLocker Allison Torque Converter Controller Fleece Performance view 1
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2001-2016 AlliLocker Allison Torque Converter Controller Fleece Performance
$179.00
13% off
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2001-16 Chevy/GMC 6.6L Duramax Gator Heavy Duty Head Stud Kit HSK66
$524.95 $603.74 Sale
Gator Fasteners Competition Series Head Stud Kit, Chevy/GMC (2001-16) 6.6L Duramax Diesel
8% off
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2001-16 Chevy/GMC 6.6L Duramax Gator Competition Series Head Stud Kit HSK66-CS
$1,419.99 $1,543.49 Sale
2001-10 Chevy/GMC 6.6L Duramax Gator Heavy Duty Rod Bolt Kit RBK66
20% off
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2001-10 Chevy/GMC 6.6L Duramax Gator Heavy Duty Rod Bolt Kit RBK66
$209.99 $262.49 Sale
20 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance view 1
20 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance
$71.40
2 Setrab To -10AN Fittings Purchased W/Allison Transmission Cooler Lines Fleece Performance view 1
2 Setrab To -10AN Fittings Purchased W/Allison Transmission Cooler Lines Fleece Performance
$19.90
19 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance view 1
19 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance
$69.30
18 Inch Rail Pressure Sensor Extension Harness Fleece Performance view 1
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18 Inch Rail Pressure Sensor Extension Harness Fleece Performance
$43.04
18 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance view 1
18 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance
$67.20
17 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance view 1
17 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance
$65.10
16 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance view 1
16 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance
$63.00
15 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance view 1
15 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance
$60.90
14 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance view 1
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14 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance
$58.80
13 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance view 1
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13 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance
$56.70
12mm Quick Connect to 3/4 Inch-16 O-ring (-8 AN) Fleece Performance view 1
12mm Quick Connect to 3/4 Inch-16 O-ring (-8 AN) Fleece Performance
$15.99
12 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance view 1
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12 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance
$54.60
11 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance view 1
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11 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance
$52.50
10 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance view 1
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10 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts Fleece Performance
$50.40
1/8 Inch NPT Hex Socket Plug Black Fleece Performance view 1
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1/8 Inch NPT Hex Socket Plug Black Fleece Performance
$2.99
1/4 Inch NPT Hex Socket Plug Black Fleece Performance view 1
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1/4 Inch NPT Hex Socket Plug Black Fleece Performance
$2.99
1/2 Inch Quick Connect to 3/4 Inch-16 O-ring (-8 AN) Fleece Performance view 1
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1/2 Inch Quick Connect to 3/4 Inch-16 O-ring (-8 AN) Fleece Performance
$16.99
1/2 Inch NPT to -10AN Male Fleece Performance view 1
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1/2 Inch NPT to -10AN Male Fleece Performance
$10.95
1/2 Inch NPT Hex Socket Plug Black Fleece Performance view 1
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1/2 Inch NPT Hex Socket Plug Black Fleece Performance
$4.49
1/2 Inch Hose Barb to 3/4 Inch-16 O-ring (-8 AN) Fleece Performance view 1
1/2 Inch Hose Barb to 3/4 Inch-16 O-ring (-8 AN) Fleece Performance
$10.99
1/2 Inch CP3 Feed Fitting Fleece Performance view 1
1/2 Inch CP3 Feed Fitting Fleece Performance
$15.95
1/2 Inch Black Anodized Aluminum Y Barbed Fitting (For -8 Pushlock Hose) Fleece Performance view 1
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1/2 Inch Black Anodized Aluminum Y Barbed Fitting (For -8 Pushlock Hose) Fleece Performance
$24.99
1/2 Inch Billet Aluminum Universal Block Off Plug Fleece Performance view 1
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1/2 Inch Billet Aluminum Universal Block Off Plug Fleece Performance
$7.42
1.5 inch T4 Pedestal Spacer Fleece Performance view 1
1.5 inch T4 Pedestal Spacer Fleece Performance
$125.73
1.0 inch T4 Pedestal Spacer Fleece Performance view 1
1.0 inch T4 Pedestal Spacer Fleece Performance
$99.74
'-8AN Aluminum Male Weld Bung 1/2 inch Register 3/4 inch OD Fleece Performance view 1
'-8AN Aluminum Male Weld Bung 1/2 inch Register 3/4 inch OD Fleece Performance
$7.30
'-8 Straight to Hose Barb Black Fleece Performance view 1
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'-8 Straight to Hose Barb Black Fleece Performance
$7.99
'-8 90 Degree to Hose Barb Black Fleece Performance view 1
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'-8 90 Degree to Hose Barb Black Fleece Performance
$13.99
'-8 45 Degree to Hose Barb Black Fleece Performance view 1
'-8 45 Degree to Hose Barb Black Fleece Performance
$12.99
'-6 to 9/16 inch-18 Straight Male Black Fleece Performance w/ O-Ring Fleece Performance view 1
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'-6 to 9/16 inch-18 Straight Male Black Fleece Performance w/ O-Ring Fleece Performance
$10.99
'-6 AN Straight to Hose Barb Fleece Performance view 1
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'-6 AN Straight to Hose Barb Fleece Performance
$6.99
'-6 90 Deg to Hose Barb Black Fleece Performance view 1
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'-6 90 Deg to Hose Barb Black Fleece Performance
$12.99
'-6 45 Deg to Hose Barb Black Fleece Performance view 1
'-6 45 Deg to Hose Barb Black Fleece Performance
$12.99
'-10AN Aluminum Male Weld Bung 5/8 inch Register 7/8 inch OD Fleece Performance view 1
'-10AN Aluminum Male Weld Bung 5/8 inch Register 7/8 inch OD Fleece Performance
$8.35
'-10 to 7/8 Inch -14 Straight Male Black w/ O-Ring Fleece Performance view 1
'-10 to 7/8 Inch -14 Straight Male Black w/ O-Ring Fleece Performance
$14.96
'-10 to 3/4 Inch-16 Straight Male Black w/ O-Ring Fleece Performance view 1
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'-10 to 3/4 Inch-16 Straight Male Black w/ O-Ring Fleece Performance
$14.96
'-10 90 Deg to Hose Barb Black Fleece Performance view 1
'-10 90 Deg to Hose Barb Black Fleece Performance
$14.99
Duramax CP3K Fleece Performance view 1
Duramax CP3K Fleece Performance
$1,363.95
Cold Air Intake For 04-05 Chevrolet Silverado GMC Sierra V8-6.6L LLY Duramax Dry Extendable White S and B view 1
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Cold Air Intake For 04-05 Chevrolet Silverado GMC Sierra V8-6.6L LLY Duramax Dry Extendable White S and B
$349.00
Cold Air Intake For 04-05 Chevrolet Silverado GMC Sierra V8-6.6L LLY Duramax Cotton Cleanable Red S and B view 1
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Cold Air Intake For 04-05 Chevrolet Silverado GMC Sierra V8-6.6L LLY Duramax Cotton Cleanable Red S and B
$349.00
Allison Transmission Cooler Lines For 2001-2005 LB7-LLY Fleece Performance view 1
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Allison Transmission Cooler Lines For 2001-2005 LB7-LLY Fleece Performance
$269.00

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