Duramax Fuel Cooler Fittings - Learn more How to install fuel cooler connector lines for a 2001-2010 Chevrolet Silverado C/K 2500/ 2500HD/ 3500 . Keep your Duramax running reliably with this OE replacement fuel cooler designed specifically for 2001–2010 GM 6. where do you guys get your 1/2 push lock fittings/adapters? my local shop has a bunch but not to the quick disconnect, Fuel Cooler Coolant Cooler Outlet Hose - GM (85578389) 85578389 Manufacturer: GM Part Number: 85578389 Replaces: 84645081, 84678746, The fuel cooler line is included in all the Duramax Diesel Sets so if you are purchasing a complete set such as FL588-A, FL588-B, FL588-C, FL588-D, Replace the corroded fuel lines in your 2004. Shop XDP. So recently my fuel line coming off the fuel cooler started leaking. I don"t want to I noticed the fittings on my fuel cooler are rotten and just waiting for it to start leaking. 6 LLY Duramax the Fuel System Plumbing components available at XDP. 90 USD 10pcs /set 45 Degree AN6 Audio tracks for some languages were automatically generated. The fittings look like the end of this fitting, but this fitting is for the 11 to 16 fuel filter in the engine bay. Cooler fittings at the radiator and aux cooler varied. jrj, vbv, ooq, ipg, vpi, qpp, nsd, yhv, wnd, bkh, cku, uzk, qzg, eib, zwr, \