Results 1 to 6 of 6

Thread: Radiator hose ID

  1. #1
    Join Date
    Dec 2000
    Location
    Hawaii/Arizona
    Posts
    259

    Default Radiator hose ID

    Does anyone know what the ID is for the lower radiator hose on my 2006 LBZ? The OD measures about 2.25" so I am guessing that the ID is around 2.0", possibly a little smaller.

    I am going to cut the lower hose and splice in a piece of pipe with a drain so it isn't such a PIA to drain the coolant system. There is no factory drain on the 2006 LBZ trucks.
    If I can find out the size of the lower hose I can make up the drain in advance and avoid down time.

    Thanks in advance
    John
    *2006 Chevy, 3500, 4X4, DRW, (LBZ) D/A, CC, LT, 252K Miles, 19.5" Wheels, Mag Hytec Transmission Pan and Differential Cover, SS Grill Guard, Racor 2 micron aux fuel filter, 100 Gallon Aux Fuel Tank, using Edge Evolution, Predator Diablosport, Kennedy ECM tune, Fitch Fuel Catalyst.

    *2006 Four Winds, Dutchman, 36', RV, D/A, 5500 Kodiak.
    *1993 Harley Davidson, Turbo charged, Springer Softail.
    *2007 Pontiac Solstice.
    *2005 Jeep, Liberty, CRD (diesel).
    *Full-timing in USA, see America first.

    BUY AMERICAN or CANADIAN, NOTHING from CHINA .

  2. #2
    Join Date
    Mar 2000
    Location
    Owego, NY
    Posts
    1,929

    Default

    John, if no one reply's with the ID of the lower hose another option would be to buy a new replacement hose, modify it with the drain, then R&R the existing hose. That should minimize down time but it would add the cost of a new hose.

    Bill
    03 2500HD D/A CC/SB/4WD,OilGuard, MegaFilter,LiftPump/PreFilter, Bilsteins,RetraxRollTop,J&J Boards,Coolant Filter,AlliDeepPan,FastIdle,AllHeadLightsOn,
    98 K3500 6.5,SOLD

  3. #3
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,382

    Arrow

    Be aware that a new OE lower radiator hose replacement cost is quite high... It was about $150 some years ago when I assembled our Duramax conversion.

    There is a heater hose (or surge tank connection, I don't remember for sure) connection about mid-point on the lower rad hose. I'd look at splicing a "T" into that smaller/cheaper hose.

    Alternately, you could just remove the clamp and then loosen the lower radiator hose from the radiator to drain the coolant. A bit messy, but a lot less costly - for such an infrequent service.

  4. #4
    Join Date
    Dec 2000
    Location
    Hawaii/Arizona
    Posts
    259

    Default

    In the last 24 months I have needed to drain the coolant three times. First time was just drain and flush maintenance, the second time was water pump replacement, the third time was the EGR coolant hose replacement. Every time it was a nasty mess draining the coolant and no chance to save any coolant for reuse. I am not worried about cutting the lower hose and installing a sleeve with a drain to avoid getting another shower with coolant. A new ACDelco lower radiator hose p/n 26570X is $70.00 from Amazon and free shipping. Thanks for your thoughts Jim and I am going to order a new hose today. I am sure that If I install the drain in the original hose it will start to leak next week.

    In my opinion there are only two vehicle manufactures GM and all of the others. But GM is starting to take short cuts to save money that will hurt them long term with customer satisfaction. Things like removing the coolant drain and using standard 5/8" heater hose in stead of a high quality silicone hose on the EGR cooler (it is VERY HARD to access) can get even a diehard GM customer like me upset.





    .
    *2006 Chevy, 3500, 4X4, DRW, (LBZ) D/A, CC, LT, 252K Miles, 19.5" Wheels, Mag Hytec Transmission Pan and Differential Cover, SS Grill Guard, Racor 2 micron aux fuel filter, 100 Gallon Aux Fuel Tank, using Edge Evolution, Predator Diablosport, Kennedy ECM tune, Fitch Fuel Catalyst.

    *2006 Four Winds, Dutchman, 36', RV, D/A, 5500 Kodiak.
    *1993 Harley Davidson, Turbo charged, Springer Softail.
    *2007 Pontiac Solstice.
    *2005 Jeep, Liberty, CRD (diesel).
    *Full-timing in USA, see America first.

    BUY AMERICAN or CANADIAN, NOTHING from CHINA .

  5. #5
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,382

    Arrow

    I hear you. I need to replace the water pump in my truck too.... Just getting organized for the job.

    This is sorta like the cabin filter GM used in the 2001 & 2002 models, then dropped the feature in later trucks. Cleaning the incoming air seems pretty important to me. Anyone with allergies or if you're concerned about incoming crud, a cabin filter should be a vehicle selling point.

  6. #6
    Join Date
    Mar 2000
    Location
    Loyal WI US
    Posts
    10,792

    Default

    I have not really been that much of a fan of Mishimoto, but you might look at their silicone replacement hose. It has an aluminum adapter for the quick release and I wonder if there is maybe a spot that guy could drill and tap it for a drain? It looks like that may not be the case, but...
    Kennedy Diesel-owner
    More than just a salesman-I use and test the products that I sell on a daily basis!
    Superflow Lie Detector in house
    2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
    2005 Chev K3500SRW D/A CC Long LT(SOLD)
    2007 Chev K2500 Classic EC Short LT (Sold)
    2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.
    2016 GMC K3500SRW D/A CC short LTZ

    Custom tuning in house using EFI Live tuning software!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •