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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
Merchant Automotive 450000C Engine Gasket Set (With Head Gaskets)The Merchant Automotive 450000C Engine Gasket Set (With Head Gaskets) from GAP is the kit you need when rebuilding your Duramax engine. If you are replacing blown head gaskets or rebuilding an LB7 Duramax diesel engine, you are going to need quite a few parts to get the job done. Merchant Automotive has put together a kit that includes components you need to help you get the job done. Kit Includes: Grade C Head Gaskets (1) Injector Cup O ring Kit,
The Merchant Automotive 450000C Engine Gasket Set (With Head Gaskets) from GAP is the kit you need when rebuilding your Duramax engine. If you are replacing blown head gaskets or rebuilding an LB7 Duramax diesel engine, you are going to need quite a few parts to get the job done. Merchant Automotive has put together a kit that includes components you need to help you get the job done.
Kit Includes:
Grade C Head Gaskets
(1) - Injector Cup O-ring Kit, LB7, 2001-2004 Duramax 16 Pack of GM 94051259
(1) - Fuel Line Banjo Seal at FICM, Duramax, 2 per package
(1) - Small LB7 Injector Return Line Seal, Duramax Pack of 3
(2) - LB7 Injector Seal Kit 2001-2004
(2) - Red Threadlocker
(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) - Gasket - Exhaust Manifold To Up Pipe, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(2) - Lower Valve Cover Gasket, LB7, 2001-2004 Duramax
(1) - RTV Sealant, High Temp, Aluminum, 2.8oz LB7 LLY LBZ LMM LML, L5P 2001-2019 Duramax
(2) - Injector Return Line Kit, LB7, 2001-2004 Duramax 1x 98065992 and 4x 97228933
(1) - Upper Radiator Pipe Seal, LB7 LLY LBZ LMM, 2001-2010 Duramax
(2) - Thermostat Housing Crossover At Head Gasket, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(2) - Intake Pipe Seal, LB7 LLY, 2001-2005 Duramax
(1) - Turbo Inlet Gasket, LB7, 2001-2004 Duramax
(1) - Oil Fill Tube Seal, LB7 LLY LBZ LMM LML, 2001-2016 Duramax
(2) - Exhaust Manifold Gasket, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(1) - Heater Pipe Seal, LB7 LLY LBZ, 2001-2007 Duramax
Kit Includes:
Grade C Head Gaskets
(1) - Injector Cup O-ring Kit, LB7, 2001-2004 Duramax 16 Pack of GM 94051259
(1) - Fuel Line Banjo Seal at FICM, Duramax, 2 per package
(1) - Small LB7 Injector Return Line Seal, Duramax Pack of 3
(2) - LB7 Injector Seal Kit 2001-2004
(2) - Red Threadlocker
(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) - Gasket - Exhaust Manifold To Up Pipe, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(2) - Lower Valve Cover Gasket, LB7, 2001-2004 Duramax
(1) - RTV Sealant, High Temp, Aluminum, 2.8oz LB7 LLY LBZ LMM LML, L5P 2001-2019 Duramax
(2) - Injector Return Line Kit, LB7, 2001-2004 Duramax 1x 98065992 and 4x 97228933
(1) - Upper Radiator Pipe Seal, LB7 LLY LBZ LMM, 2001-2010 Duramax
(2) - Thermostat Housing Crossover At Head Gasket, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(2) - Intake Pipe Seal, LB7 LLY, 2001-2005 Duramax
(1) - Turbo Inlet Gasket, LB7, 2001-2004 Duramax
(1) - Oil Fill Tube Seal, LB7 LLY LBZ LMM LML, 2001-2016 Duramax
(2) - Exhaust Manifold Gasket, LB7 LLY LBZ LMM LML LGH, 2001-2016 Duramax
(1) - Heater Pipe Seal, LB7 LLY LBZ, 2001-2007 Duramax
WARRANTY INFO:
1 Year Limited
Note: Head Gaskets Included & Head Bolts NOT Included
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
4.3 ★★★★★
Based on 1093 reviews
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Product Reviews
★★★★★ 5
Durable, fun, and safe for my dog
Size: 10.5 inch Rubber Flex Tread
I have a 10 month old, 50 lb mutt who has the musculature of a pit bull and the muzzle of a GSD. Buttercup’s favorite past-time is shredding toys into teeny tiny bits, but sometimes those bits don’t come back out of her mouth. She can’t have tennis balls, stuffies, anything with a squeaker, silicone toys, plastic toys, rubber toys with spikes or small appendages, anything with rope, or most chews & bones. She chewed her first and only $8+ XL bully stick like a corn chip. Finding indoor enrichment is a challenge. Buttercup is extremely pleased with this tire tug thingy, it is very ergonomic for both her and me to get a handle on it, it has more movement than any other toy she can safely have, and it’s very durable. After more than a week, there’s only a little bit of tread missing, which is definitely the best-case outcome with a super chewer. I think this is a good alternative to GoNut toys because it’s solid & dense while also a little bit easier & more interesting to play with, and very unlike GoNuts, this Tonka toy is very reasonably priced. I also think this it’s a good size for almost any breed of dog—I could definitely picture a little Boston or Frenchie dangling from one end. Highly recommended!
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Reviewed in the United States on December 20, 2024
★★★★★ 5
Dog loves it
Size: 10.5 inch Rubber Flex Tread
I would buy this again and again. It’s extremely durable and has held up great with my 9 month old Saint Bernard puppy. We even call it his “pacifier” because every night he grabs it and chews on it until he falls asleep. Definitely a favorite in our house!
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Reviewed in the United States on March 20, 2026
★★★★★ 4
Tough toy, but the yellow tire broke at the seam
Size: 10.5 inch Rubber Flex Tread
It was fun while it lasted and it got a lot of use, but it finally gave out after 6+/- months? Great tug toy. My dog is a 70# mutt with a strong bite and he's chewed through pretty much every other toy he's ever had. This one lasted longer than any of the others by quite a bit. He did zero chew damage to the tires, but the yellow tire in the middle broke at the seam. No tear, the seam just came undone at 90 degree angles. I'm going to look for something else this time but this wasn't bad considering how long it lasted and it wasn't very expensive. If I don't find anything tougher, I may purchase another one of these down the road.
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Reviewed in the United States on March 18, 2024
★★★★★ 1
Not for tough chewers at all!!!
Size: 10.5 inch Rubber Flex Tread, Size: 10.5 inch Rubber Flex Tread
5 minutes in and it's destroyed. Very disappointing.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Great chew toy
Size: 10.5 inch Rubber Flex Tread
This is my second time buying the Tonka rings. My dog loves this chew toy. It does take him a bit to destroy them. I give this toy to him as a reward otherwise it be destroyed in 3 days. I have a pitty. So other dogs it should last longer. They are shin whackers and hurt when they connect. So I make sure to watch the dog and toy around small kids and elderly to be safe. They are heavy and made well.
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Reviewed in the United States on October 29, 2025
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