2013 Sub - Difference between regular and heavy duty radiator

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by yogi799, Nov 9, 2013.

  1. yogi799

    yogi799 New Member

    I have the towing package which lists a heavy duty radiator, among others. Anyone know how to tell the difference?
  2. ChevyFan

    ChevyFan Administrator Staff Member

    Last edited: Nov 9, 2013
  3. ChevyFan

    ChevyFan Administrator Staff Member

    From Edmunds " heavy-duty towing package (with an integrated trailer brake controller, trailer sway control and hill start assist)"

    Looking at the radiator.
  4. Pikey

    Pikey Moderator Staff Member

    Steve, those are the same part numbers!
  5. ChevyFan

    ChevyFan Administrator Staff Member

    Edited the first post.
  6. Pikey

    Pikey Moderator Staff Member

    Thanks! I tried to look at pictures of the parts but they were the same. It took me a second to figure out the issue.
  7. ChevyFan

    ChevyFan Administrator Staff Member

    They don't have two photos for the radiator in any case. Have to find it somewhere else. I think the hd radiator is thicker ... but that only helps if you have both to look at.
  8. 99'HEARTBEAT

    99'HEARTBEAT Moderator Staff Member

    The Factory Tow Package, RPO Code Z82.....this Package includes....."Trailering Equipment HD" includes Trailer Hitch Platform. 7 Wire Harness, K47 High Capacity Air Cleaner, (KNP) Cooling External Transmission Cooler,


    This Information below is from Chevy's Web Site....under 2013" 1500 Suburbans "Build your Own"

    Heavy-Duty Trailering Package: If you plan to haul or tow heavy loads, select the Heavy-Duty Trailering Package, which consists of an auxiliary external engine oil cooler, an auxiliary external transmission oil cooler, a 2-speed active transfer case on 4WD models and a 3.42 rear axle ratio. This critical feature protects your engine and transmission by helping prevent overheating and is available on 1/2-ton models only.

    There is no mention, that a "Heavy Duty Radiator" comes with the Heavy-Duty Trailering Package.
    Last edited: Nov 9, 2013
  9. yogi799

    yogi799 New Member

    Yes there is...
    This is the list and also a screen snip. rad.jpg

    Heavy-Duty Trailering Package
    Includes:

    • External engine oil cooler
    • Auxiliary external transmission oil cooler
    • Power steering cooler
    • High output electric fan
    • Heavy-duty radiator


  10. RayVoy

    RayVoy Active Member

    I think one of the differences is an engine oil cooler built into the rad. It is like the transmission cooler, one is on the left side of the rad, the other cooler is on the right side.

    I don't know if it's thicker. I can measure mine (I have the heavy duty trailer option), if someone wants to check the rad in a truck without HD.
  11. yogi799

    yogi799 New Member

    Ray, yeah, pls tell me the thickness of yours. I will compare to mine. It would be great if someone without the towing package could measure the thickness of theirs. Thanks in advance.

    Also, are you sure the engine oil cooler is built into the rad? I hope not... Would that mean that three different fluids are cooled via the rad (coolant, ATF and oil)? That's asking for trouble if it fails.
  12. RayVoy

    RayVoy Active Member

    The oil cooler is a coil inside one of the side tanks of the rad. I think the transmission oil cooler is in the passenger side tank and the engine oil cooler is in the driver's side tank.

    Is it "asking for trouble if it fails"? One side may fail, but both would not, risk no higher than using a rad with one cooler. The rad is a very efficient method of cooling.

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