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  1. #1

    Default 2013 Sub - Difference between regular and heavy duty radiator

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

  2. #2

    Default

    The hd radiator is p/n #20935856 while the reg radiator is p/n # 22840117.

    I'm not fully sure, look for something like a built in tranny cooler going into bottom. Thats more of a guess than anything actualy. I'll look at this more later.

    Edit: hard to see what the difference is in the radiator.

    http://www.gmpartsclub.com/parts-cat...ystem/radiator
    Last edited by Steve; 11-09-2013 at 09:35 AM.

    Steve
    10 Chevy Traverse LT AWD
    02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
    62 GMC 3/4 ton Pickup (350 police interceptor)

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  3. #3

    Default

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

    Looking at the radiator.

    Steve
    10 Chevy Traverse LT AWD
    02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
    62 GMC 3/4 ton Pickup (350 police interceptor)

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  4. #4

    Default

    Quote Originally Posted by Steve View Post
    The hd radiator is p/n #20935856 while the reg radiator is p/n #20935856.

    I'm not fully sure, look for something like a built in tranny cooler going into bottom. Thats more of a guess than anything actualy. I'll look at this more later.
    Steve, those are the same part numbers!

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

  5. #5

    Default

    Edited the first post.

    Steve
    10 Chevy Traverse LT AWD
    02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
    62 GMC 3/4 ton Pickup (350 police interceptor)

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  6. #6

    Default

    Quote Originally Posted by Steve View Post
    Edited the first post.
    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.

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

  7. #7

    Default

    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.

    Steve
    10 Chevy Traverse LT AWD
    02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
    62 GMC 3/4 ton Pickup (350 police interceptor)

    Remember: Search Before Posting | Fill out Your Profile & Signature
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  8. #8

    Default

    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 by 99'HEARTBEAT; 11-09-2013 at 10:31 AM.

    MIKE


    99"SILVERADO
    5.3 l 3.73 l G80
    BLACK BEAR CUSTOM TUNE
    SNUGTOP l COLORMATCH l KATZKIN










  9. #9

    Default

    Yes there is...
    This is the list and also a screen snip.Click image for larger version. 

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    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. #10

    Default

    Quote Originally Posted by Steve View Post
    I think the hd radiator is thicker ... .
    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.
    Ray

    '09 Avalanche LTZ - Black
    '05 Envoy XL (sold)

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