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Description
Merchant Automotive 450401C Engine Gasket Set (W/Bolts & Head Gaskets)Get the Merchant Automotive 450401C Engine Gasket Set (W Bolts & Head Gaskets) from GAP for rebuilding your GM Duramax LML engine. When replacing blown head gaskets or rebuilding an LML Duramax diesel engine, you are going to need a wide variety of gaskets and seals to get the job done. Merchant Automotive has put together a complete LML Duramax Diesel engine gasket kit. Featuring OE style and upgraded parts, this kit will help to ensure that your LML
Get the Merchant Automotive 450401C Engine Gasket Set (W/Bolts & Head Gaskets) from GAP for rebuilding your GM Duramax LML engine. When replacing blown head gaskets or rebuilding an LML Duramax diesel engine, you are going to need a wide variety of gaskets and seals to get the job done. Merchant Automotive has put together a complete LML Duramax Diesel engine gasket kit. Featuring OE-style and upgraded parts, this kit will help to ensure that your LML gaskets perform as well as the factory gaskets did.
Kit Includes:
OE-Style Head Bolts
Grade C Head Gaskets
(1) - Injector Copper, LLY LBZ LMM LML, 2004.5+, Pack of 8
(1) - LML Injector Body Seal, 2011+, 8 Pack, Duramax
(1) - LML Injector Fuel Return Line Seal, 2011-2016, 8 Pack, Duramax
(1) - EGR Coolant Pipe Drain Seal, LML LGH, 2011-2016 Duramax
(2) - Upper Valve Cover Gasket, LML LGH, 2011-2016 Duramax
(1) - PCV Valve Seal, LML, 2011 Duramax
(1) - Upper Bypass Pipe Seal at Thermostat Housing, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(1) - Bypass Pipe Seal, LB7 LLY LBZ LMM LML, 2001-2016 Duramax
(2) - Oil Level Indicator Tube Seal, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(2) - Gasket - Exhaust Manifold To Up Pipe, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(2) - Gasket - Turbo To Up Pipe, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(2) - Intake Y Bridge Gasket, LBZ LMM LML LGH, 2006-2016 Duramax
(1) - RTV Sealant, High Temp, Aluminum, 2.8oz LB7 LLY LBZ LMM LML, L5P 2001-2019 Duramax
(1) - Fuel Feed Pipe Gasket, LML LGH, 2011-2016 Duramax
(2) - Thermostat Housing Crossover At Head Gasket, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(1) - Turbo Oil Feed Pipe Gasket, At Engine, LML LGH, 2011-2016 Duramax
(1) - Upper Intake Y Bridge Seal, LML, 2011-2016 Duramax
(1) - Turbo Mouthpiece Inlet Seal, LML LGH, 2011-2016 Duramax
(2) - EGR To Y Bridge Gasket, LML LGH, 2011-2016 Duramax
(1) - Oil Fill Tube Seal, LB7 LLY LBZ LMM LML, 2001-2016 Duramax
(2) - EGR Valve Gasket, LML LGH, 2011-2016 Duramax
(1) - Up Pipe To EGR Gasket, Cooler Bypass, LML, 2011-2016 Duramax
(1) - EGR Valve Cooler Gasket, LML, 2011-2016 Duramax
(1) - EGR Valve Gasket, Between EGR Cooler Assembly, LML, 2011-2016 Duramax
(1) - EGR Recirculation Pipe Gasket, LML, 2011-2016 Duramax
(2) - Exhaust Manifold Gasket, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(2) - PCV Drain Ventilation Hose Fitting Seal, Hose Side And Block Side, LML LGH, 2011-2016 Duramax
(1) - Turbo Oil Return Pipe Gasket At Engine, LML LGH, 2011-2016 Duramax
(1) - PCV Oil Separator Seal, LML LGH, 2011-2016 Duramax
(2) - PCV Valve Seal, LML, 2012-2016, Turbo Resonator, LML, 2011-2016 Duramax
(2) - Lower Valve Cover Gasket LLY LBZ LMM LML
Kit Includes:
OE-Style Head Bolts
Grade C Head Gaskets
(1) - Injector Copper, LLY LBZ LMM LML, 2004.5+, Pack of 8
(1) - LML Injector Body Seal, 2011+, 8 Pack, Duramax
(1) - LML Injector Fuel Return Line Seal, 2011-2016, 8 Pack, Duramax
(1) - EGR Coolant Pipe Drain Seal, LML LGH, 2011-2016 Duramax
(2) - Upper Valve Cover Gasket, LML LGH, 2011-2016 Duramax
(1) - PCV Valve Seal, LML, 2011 Duramax
(1) - Upper Bypass Pipe Seal at Thermostat Housing, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(1) - Bypass Pipe Seal, LB7 LLY LBZ LMM LML, 2001-2016 Duramax
(2) - Oil Level Indicator Tube Seal, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(2) - Gasket - Exhaust Manifold To Up Pipe, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(2) - Gasket - Turbo To Up Pipe, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(2) - Intake Y Bridge Gasket, LBZ LMM LML LGH, 2006-2016 Duramax
(1) - RTV Sealant, High Temp, Aluminum, 2.8oz LB7 LLY LBZ LMM LML, L5P 2001-2019 Duramax
(1) - Fuel Feed Pipe Gasket, LML LGH, 2011-2016 Duramax
(2) - Thermostat Housing Crossover At Head Gasket, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(1) - Turbo Oil Feed Pipe Gasket, At Engine, LML LGH, 2011-2016 Duramax
(1) - Upper Intake Y Bridge Seal, LML, 2011-2016 Duramax
(1) - Turbo Mouthpiece Inlet Seal, LML LGH, 2011-2016 Duramax
(2) - EGR To Y Bridge Gasket, LML LGH, 2011-2016 Duramax
(1) - Oil Fill Tube Seal, LB7 LLY LBZ LMM LML, 2001-2016 Duramax
(2) - EGR Valve Gasket, LML LGH, 2011-2016 Duramax
(1) - Up Pipe To EGR Gasket, Cooler Bypass, LML, 2011-2016 Duramax
(1) - EGR Valve Cooler Gasket, LML, 2011-2016 Duramax
(1) - EGR Valve Gasket, Between EGR Cooler Assembly, LML, 2011-2016 Duramax
(1) - EGR Recirculation Pipe Gasket, LML, 2011-2016 Duramax
(2) - Exhaust Manifold Gasket, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(2) - PCV Drain Ventilation Hose Fitting Seal, Hose Side And Block Side, LML LGH, 2011-2016 Duramax
(1) - Turbo Oil Return Pipe Gasket At Engine, LML LGH, 2011-2016 Duramax
(1) - PCV Oil Separator Seal, LML LGH, 2011-2016 Duramax
(2) - PCV Valve Seal, LML, 2012-2016, Turbo Resonator, LML, 2011-2016 Duramax
(2) - Lower Valve Cover Gasket LLY LBZ LMM LML
WARRANTY INFO:
1 Year Limited
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Very Comfortable
Size: 9, Color: Chestnut, Size: 9, Color: Chestnut
Good quality and very comfortable. Sizing is accurate.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
★★★★★ 4
Cute - change footbed please
Size: 8.5, Color: Dense Smoke
These are so comfy and fit my usually 8.5 foot great. It's the footbed of UGGs that I keep hoping they'll change. It's like our memory foam mattress - cushy and great UNTIL THE HEAT comes! Then it's a no for this hot 65 yo G'ma!
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Reviewed in the United States on May 20, 2026
★★★★★ 3
No me quedaron
Size: 8, Color: Dense Smoke
No son del # vienen más pequeños
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Super fun!
Size: 8.5, Color: Red Pepper
These are so fantastic! The color is amazing! It is a bit on the tomato-red side of the color-wheel. The fit is great. They are comfortable from the 1st step. Easy to walk in.
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Reviewed in the United States on March 17, 2026
★★★★★ 5
Nice so far.
Size: 6.5, Color: Molasses
Comfy. They were tight the first day across the toes but as I've worn them a couple times they are loosening up. The sole is forming to my foot. These are very much like Doc Martin's from the early 2000s. Not sure about quality since I haven't had them for very long.
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Reviewed in the United States on March 27, 2026