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Lower Radiator Pipe O-rings At Radiator, 2006-2010

7 Reviews
SKU: 10406


Replacement O ring seal fits in lower hose at connection to radiator. A leak at this spot is commonly just the seal and does not require replacement of the entire hose assembly. GM used 2 different size o-rings, kit comes with both to insure you have the one you need.

Lower hose retainer clip also available - Part Number 25806515


2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel:
2006, 2007, 2008, 2009, 2010

Ratings & Reviews

7 Reviews

  • 4 stars
  • 0 reviews
  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews

Coolant oring

Clint - | 09/14/2018 12:01:00 pm

Totally beats buying the whole lower radiator hose assembly well worth the money solved my coolant leek


ALAN - | 11/27/2019 12:01:00 pm

Awesome Service, Correct Fit !

Duramax O Ring

John - | 09/10/2018 12:01:00 pm

Great Oring comes with first and second design. Great fit and it fits snug on my 2008 duramax. Fixed my coolant leak without having to buy the 200 hose for just the o ring!

Saved me from replacing a perfectly good radiator hose

Matthew - | 04/09/2019 12:01:00 pm

Smaller of the two O rings fit my LMM perfectly

Wrong O-ring put in bag

Daniel - | 06/01/2018 12:01:00 pm

Might have been a good product had the right O-rings been put in the bag. At least I was told that's what happened. Fortunately the original didn't appear damaged and I with some gasket grease I was able to reuse as opposed to waiting for the hopefully correct item to be shipped. Was given a refund but had to eat shipping cost which was nearly as much as the O-rings.

Over sized

Kevin - | 08/27/2019 12:01:00 pm

They are over sized 0.165 In and would not fit my 2006 chevy with the LBZ. I had to reorder from Mr-Oring size 0.139 in. and this worked perfect, fixed my leak.

They worked the second time around

Douglas - | 11/22/2018 12:01:00 pm

I really do appreciate having this website for most of my duramax needs, I recieved my first set, had the right part number but they didn't fit quite right, started leaking again, I called, They were very understanding and said manufacturers must have had a mix up, so they sent me another set same part number pronto, they matched the original o-ring and it sealed up great.