2001-2010 Duramax Coolant Bypass Tube (119000XXX)

I ordered this part on a Sunday, as well as the 400 dollar radiator hose kit. And some other items that were actually spec’d wrong because of the ai chat bot. Hours before they opened on Monday morning I emailed requesting my shipment be put on hold until the parts got straightened out because I realized they were wrong. That day at lunch I got an email saying the bypass tube was on back order for 6 weeks. So I replied immediately to have my order cancelled. I could not wait 6 weeks. I knew they would ship half the order just to make a sale on the items they had in stock. Tuesday afternoon after wasting two business days, I got an email saying my radiator hoses and other 3 items that were sourced incorrectly were shipped. Go figure. Oh but don’t worry, we added extra stickers in there to smooth things over. Two years ago I ordered the PPE stainless steel coolant return pipe and they shipped me the wrong item. I was down for 3 weeks because I had to send it back. They had to receive it before they would send the proper part. Luckily when I spent 7k on injectors and lift pumps I bought it all through the dmaxstore. I will never order here again.

Adam 1/5 September 15, 2026

2001-2010 Duramax Coolant Bypass Tube (119000XXX)

Did not ever see this. Part. Ordered this part because you said you had this part in stock. Which you did not I can’t wait for part s that long. Found one on e bay. Bought an. Installed it On the truck.

Brian P. 1/5 Verified August 28, 2026

2001-2010 Duramax Coolant Bypass Tube (119000XXX)

Fits!

Cory B. 5/5 Verified July 17, 2026

2001-2010 Duramax Coolant Bypass Tube (119000XXX)

Works good It’s not the easiest job to install, but it fit like factory, which was very nice

Griffin F. 5/5 Verified February 10, 2025

2001-2010 Duramax Coolant Bypass Tube (119000XXX)

Great replacement for the factory GM lines which are prone to rust.

Shawn P. 5/5 Verified October 16, 2024

2001-2010 Duramax Coolant Bypass Tube (119000XXX)