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Your cart is empty.A leaking coolant hose can lead to serious engine damage if not quickly identified.Upgrade your cooling system with the Mishimoto 6.6L Duramax silicone coolant hose kit for the perfect combination of performance and durability.Mishimoto coolant hoses are manufactured with high-grade silicone and four layers of heat-resistant embedded fibers to provide increased pressure and temperature tolerance.The Mishimoto coolant hose kit is ideal for use on both stock and modified trucks for any environment or terrain.The Mishimoto 6.6L Duramax silicone coolant hose kit includes our signature lifetime warranty and is offered in black, blue, and red.
Denein C.
2025-08-20 18:41:09
Great fit and easy to install. The only issue I had with the install was the hose clamps were too big so I had to get the correct size. I've been running them for about 5 months and haven't had any problems.
Josh
2025-08-18 20:14:56
You have to reuse the clamps for the two smaller lines which is not fun and the lower radiator connection Is a VERY tight fit. Seems like good quality but a bit expensive for rubber. It's either this or OEM. Do not recommend PPE
Alyssa Pierotti
2025-08-01 15:56:19
Aluminum piece that goes in the radiator is machined wrong and will not go on. Junk.
Not Happy customer
2025-06-17 14:38:01
Everything fit as expected. Total install time with two people was around 1.5 hours. That is with removing the old hoses as well.
Heidi C.
2025-05-24 17:59:36
Good quality. Note to stay away from the PPE hoses. Wasted alot if money and after suffering with leaks around the T from the water pump replaced this brand. Only issue is the band clamp was too small at the water pump side.
Bri Cole
2025-02-21 16:20:44
This is a exact fit item and well made. I am happy with my purchase.
EJ B.
2025-01-27 14:25:52
Probably the best replacement hose set you can buy for a DuraMax happy that these are avalible.
Jeremy
2024-11-13 14:00:03
Worked great
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