LBZ Duramax Gaskets & Seals

Protect your 2006–2007 LBZ Duramax with premium gaskets and seals designed for precision fit and maximum durability. From head gaskets and valve cover gaskets to oil seals and complete gasket kits, these components are built to handle high combustion pressures, extreme temperatures, and daily driving demands. Whether you're doing routine maintenance or a full engine rebuild, our high-quality gaskets and seals ensure a leak-free, long-lasting seal you can trust.

55 Items

LLY|LBZ Duramax Head Set Mahle HS54580A — LLY|LBZ Duramax Head Set Mahle HS54580A $325.89
Fits: LLY|LBZ Duramax 2004.5-2007

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Duramax Exhaust Manifold Gaskets Mahle MS19398 — Duramax Exhaust Manifold Gaskets Mahle MS19398 $39.60
Fits: Duramax 2001-2016

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Duramax 2001-2010 Engine Oil Pan Gasket Mahle OS32284 — Duramax 2001-2010 Engine Oil Pan Gasket Mahle OS32284 $22.80
Fits: Duramax 2001-2010

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Duramax Rear Main Engine Crankshaft Seal Mahle 67777 — Duramax Rear Main Engine Crankshaft Seal Mahle 67777 $57.86
Fits: Duramax 2001-2016

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LBZ|LMM Duramax Intake Manifold Gasket Set Mahle MS19403 — LBZ|LMM Duramax Intake Manifold Gasket Set Mahle MS19403 $17.01
Fits: LBZ|LMM Duramax 2006-2010

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LLY|LBZ|LMM Duramax Lower Rocker Cover Gasket Set Mahle VS50434 — LLY|LBZ|LMM Duramax Lower Rocker Cover Gasket Set Mahle VS50434 $65.80
Fits: LLY|LBZ|LMM Duramax 2004.5-2010

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LB7|LLY|LBZ Duramax Lower Engine Gasket Set Mahle CS54580 — LB7|LLY|LBZ Duramax Lower Engine Gasket Set Mahle CS54580 $157.71
Fits: LB7|LLY|LBZ Duramax 2001-2007

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Duramax 01-16 Thermostat Housing Gasket Mahle C31900 — Duramax 01-16 Thermostat Housing Gasket Mahle C31900 $7.26
Fits: Duramax 2001-2016

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Duramax 2001-2010 Water Pump Gasket Kit Mahle GS33752 — Duramax 2001-2010 Water Pump Gasket Kit Mahle GS33752 $24.83
Fits: Duramax 2001-2010

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Duramax 01-16 Water Pump Seal Mahle K31904 — Duramax 01-16 Water Pump Seal Mahle K31904 $2.03
Fits: Duramax 2001-2016

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Duramax 01-16 Exhaust Manifold To Up-Pipe Gasket Mahle F31903 — Duramax 01-16 Exhaust Manifold To Up-Pipe Gasket Mahle F31903 $9.14
Fits: Duramax 2001-2016

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LLY|LBZ|LMM Duramax Valve Cover Gasket Set Mahle VS50439 — LLY|LBZ|LMM Duramax Valve Cover Gasket Set Mahle VS50439 $84.35
Fits: LLY|LBZ|LMM Duramax 2004.5-2010

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Duramax 01-16 Engine Timing Cover Seal Mahle 67775 — Duramax 01-16 Engine Timing Cover Seal Mahle 67775 $40.48
Fits: Duramax 2001-2016

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Duramax 2001-2010 Valve Stem Seal Kit Mahle SS45974 — Duramax 2001-2010 Valve Stem Seal Kit Mahle SS45974 $23.71
Fits: Duramax 2001-2010

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LLY|LBZ Duramax Engine Gasket Set Without Head Gaskets Mahle 95-3727 — LLY|LBZ Duramax Engine Gasket Set Without Head Gaskets Mahle 95-3727 $460.34
Fits: LLY|LBZ Duramax 2004.5-2007

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Duramax 01-16 Exhaust Up-Pipe To Turbo Gasket Mahle F32918 — Duramax 01-16 Exhaust Up-Pipe To Turbo Gasket Mahle F32918 $14.47
Fits: Duramax 2001-2016

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LBZ Duramax Intake Manifold Gasket Set Mahle MIS19403 — LBZ Duramax Intake Manifold Gasket Set Mahle MIS19403 $59.06
Fits: LBZ Duramax 2006-2007

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Duramax 2001-2010 Fuel Filter Base & Hand Primer Seal Kit Alliant AP0029 — Duramax 2001-2010 Fuel Filter Base & Hand Primer Seal Kit Alliant AP0029 $44.56
Fits: Duramax 2001-2010

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Duramax 01-16 Head Gasket Grade C Right Alliant AP0052 — Duramax 01-16 Head Gasket Grade C Right Alliant AP0052 $41.21
Fits: Duramax 2001-2016

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Duramax 01-16 Head Gasket Grade C 1.05mm Left Alliant AP0049 — Duramax 01-16 Head Gasket Grade C 1.05mm Left Alliant AP0049 $41.21
Fits: Duramax 2001-2016

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Duramax 2001-2010 Head Gasket 0.95mm Grade A Right Alliant AP0050 — Duramax 2001-2010 Head Gasket 0.95mm Grade A Right Alliant AP0050 $41.21
Fits: Duramax 2001-2010

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Duramax 2001-2010 Head Gasket 0.95mm Grade A Left Alliant AP0047 — Duramax 2001-2010 Head Gasket 0.95mm Grade A Left Alliant AP0047 $41.21
Fits: Duramax 2001-2010

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Duramax Rear Main Seal GM 97209342 — Duramax Rear Main Seal GM 97209342 $67.49
Fits: Duramax 2001-2026

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Duramax Front Main Seal GM 97209341 — Duramax Front Main Seal GM 97209341 $63.26
Fits: Duramax 2001-2026

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Duramax Water Pump Pipe To Oil Cooler Seal GM 94011702 — Duramax Water Pump Pipe To Oil Cooler Seal GM 94011702 $32.03
Fits: Duramax 2001-2025

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Duramax Oil Cooler Outlet Gasket - Drivers Side GM 12640849 — Duramax Oil Cooler Outlet Gasket - Drivers Side GM 12640849 $11.67
Fits: Duramax 2011-2022

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Duramax Oil Cooler Outlet Gasket - Passenger Side GM 12640850 — Duramax Oil Cooler Outlet Gasket - Passenger Side GM 12640850 $11.75
Fits: Duramax 2010-2020

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Duramax 01-16 Water Pump Coolant Bypass Tube Upper O-Ring Seal GM 94011602 — Duramax 01-16 Water Pump Coolant Bypass Tube Upper O-Ring Seal GM 94011602 $4.20
Fits: Duramax 2001-2016

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Duramax 01-16 Coolant Bypass Tube Lower Pipe Seal GM 94011603 — Duramax 01-16 Coolant Bypass Tube Lower Pipe Seal GM 94011603 $3.87
Fits: Duramax 2001-2016

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Duramax 01-16 Exhaust Manifold To Up-Pipe Gasket GM 97188685 — Duramax 01-16 Exhaust Manifold To Up-Pipe Gasket GM 97188685 $16.97
Fits: Duramax 2001-2016

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Duramax 01-16 Exhaust Up-Pipe To Turbo Gasket GM 97192618 — Duramax 01-16 Exhaust Up-Pipe To Turbo Gasket GM 97192618 $18.08
Fits: Duramax 2001-2016

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Duramax 01-16 Oil Cooler O-Ring Seal GM 94399279 — Duramax 01-16 Oil Cooler O-Ring Seal GM 94399279 $6.56
Fits: Duramax 2001-2016

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Duramax 01-16 Oil Cooler To Rear Cover Gasket GM 12709792 — Duramax 01-16 Oil Cooler To Rear Cover Gasket GM 12709792 $6.56
Fits: Duramax 2001-2016

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Duramax 01-16 Oil Cooler To Block O-Ring Seal GM 97216175 — Duramax 01-16 Oil Cooler To Block O-Ring Seal GM 97216175 $8.24
Fits: Duramax 2001-2016

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Duramax Engine Oil Cooler Seal GM 97358847 — Duramax Engine Oil Cooler Seal GM 97358847 $24.70
Fits: Duramax 2001-2016

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LBZ & LMM Duramax Engine Intake Manifold Gasket GM 97363723 — LBZ & LMM Duramax Engine Intake Manifold Gasket GM 97363723 $44.75
Fits: LBZ & LMM Duramax 2006-2010

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Duramax 06-16 Fuel Injection Throttle Body Mounting Gasket GM 97375503 — Duramax 06-16 Fuel Injection Throttle Body Mounting Gasket GM 97375503 $16.17
Fits: Duramax 2006-2016

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Duramax 2007-2009 EGR Valve Gasket Mahle F32393 — Duramax 2007-2009 EGR Valve Gasket Mahle F32393 $12.34
Fits: Duramax 2007-2009

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Duramax Rear Adapter Water Housing Cover Gasket GM 97229043 — Duramax Rear Adapter Water Housing Cover Gasket GM 97229043 $8.99
Fits: Duramax 2001-2025

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Duramax Front Main Seal AcDelco 97209341 — Duramax Front Main Seal AcDelco 97209341 $51.80
Fits: 2500/3500HD Silverado | Sierra 2001-2026

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Duramax 01-19 Allison 1000 Power Take Off Cover Gasket AcDelco 29531325 — Duramax 01-19 Allison 1000 Power Take Off Cover Gasket AcDelco 29531325 $10.05
Fits: 2500HD/3500 Silverado | Sierra 2001-2019

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Duramax 01-16 Head Gasket Grade C Right GM 12637788 — Duramax 01-16 Head Gasket Grade C Right GM 12637788 $130.37
Fits: Duramax 2001-2016

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Duramax 01-16 Head Gasket Grade C Left GM 12637785 — Duramax 01-16 Head Gasket Grade C Left GM 12637785 $123.46
Fits: Duramax 2001-2016

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Duramax 2001-2010 Head Gasket Grade B Alliant AP0048 — Duramax 2001-2010 Head Gasket Grade B Alliant AP0048 $41.21
Fits: Duramax 2001-2010

Select Options

Duramax Lower Valve Cover Gasket GM 97321295 — Duramax Lower Valve Cover Gasket GM 97321295 $130.36
Fits: LLY|LBZ|LMM|LML Duramax 2004.5-2016

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LLY/LBZ Duramax StreetPro Top End Gasket Kit Cometic PRO3009T — LLY/LBZ Duramax StreetPro Top End Gasket Kit Cometic PRO3009T $616.36
Fits: LLY|LBZ Duramax 2004.5-2007

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Duramax Head Install Kit Without Studs Alliant AP0063 — Duramax Head Install Kit Without Studs Alliant AP0063 $533.84
Fits: LLY | LBZ | LMM Duramax 2004.5-2010

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LLY/LBZ Duramax Head Gasket Set Powerstroke Products PP-HGS-LBZ — LLY/LBZ Duramax Head Gasket Set Powerstroke Products PP-HGS-LBZ $375.00
California Restricted

Fits: LLY|LBZ Duramax 2004.5-2007

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LB7 Duramax Head Gasket Set Powerstroke Products PP-HGS-6.6DMAXLB7 — LB7 Duramax Head Gasket Set Powerstroke Products PP-HGS-6.6DMAXLB7 $375.00
Fits: LB7 Duramax 2001-2004.5

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LBZ Duramax Head Gasket Set Powerstroke Products PP-HGS-6.6DMAXLLY — LBZ Duramax Head Gasket Set Powerstroke Products PP-HGS-6.6DMAXLLY $375.00
Fits: LBZ Duramax 2004-2007

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Duramax 2001-2016 Wave-Stopper Cylinder Head Gasket (Grade C) MAHLE 5459X — Duramax 2001-2016 Wave-Stopper Cylinder Head Gasket (Grade C) MAHLE 5459X $138.83
Fits: Duramax 2001-2016

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Duramax 2001-2016 Wave-Stopper Cylinder Head Gasket (Grade C) MAHLE 5459X — Duramax 2001-2016 Wave-Stopper Cylinder Head Gasket (Grade C) MAHLE 5459X $138.83
Fits: Duramax 2001-2016

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Duramax 01-16 Left Side Cylinder Head Gasket 5458X (Grade C 1.05 Thickness) MAHLE 55027 — Duramax 01-16 Left Side Cylinder Head Gasket 5458X (Grade C 1.05 Thickness) MAHLE 55027 $58.71
Fits: Duramax 2001-2016

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Duramax Engine Timing Cover Gasket Set Mahle JV5278 — Duramax Engine Timing Cover Gasket Set Mahle JV5278 $82.23
Fits: Duramax 2001-2016

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Duramax 01-16 Right Side Cylinder Head Gasket 5458X (Grade C 1.05 Thickness) MAHLE 55026 — Duramax 01-16 Right Side Cylinder Head Gasket 5458X (Grade C 1.05 Thickness) MAHLE 55026 $58.71
Fits: LB7/LLY/LBZ/LMM/LML Duramax 2001-2016

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