ACDelco 20382S | Upper Radiator Coolant Hose

Part Number
Radiator Coolant Hose

Fits: 02-09 Chevrolet Trailblazer, 02-06 Chevrolet Trailblazer EXT, 02-09 GMC Envoy, 02-06 GMC Envoy XL, 02-04 Oldsmobile Bravada, 03-08 Isuzu Ascender, 04-07 Buick Rainier, 04-05 GMC Envoy XUV, 05-09 Saab 9-7x

Special Price $18.00 Regular Price $21.99
In stock
Only 4 left
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Estimated Ship Date: 1 Business Day or Less
Molded Upper Radiator Hose



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Branch Quantity0
Contains SpringNO
End 1 Inside Diameter1.30
End 2 Inside Diameter1.30
FAQ - A1Yes, make sure the hose clamps are screwed on tightly when installing.
FAQ - A2Yes - when there's water in the hose. That's why it's important to follow the vehicle manufacturer's recommendation on the use of engine coolant.
FAQ - A3No, use the hose in the way it's listed in the ACDelco belts and hoses catalog.
FAQ - A4Yes, this requires inspection, though. When the engine is cool, squeeze the hoses with your thumb and forefinger near the clamps. Feel for soft or mushy spots. A good hose will have a firm yet pliant feel. Also, Inspect for cracks, nicks, bulges (usually while hot), or a collapsed section in the hose and oil contamination, or fraying near the connection points.
FAQ - A5No
FAQ - A6No
FAQ - Q1Can an automotive hose detach during use?
FAQ - Q2Can an automotive hose freeze in the winter?
FAQ - Q3Can I use the same automotive hose for multiple uses?
FAQ - Q4Will I know when it is time to replace an automotive hose?
FAQ - Q5Are there steps I can take to ensure a longer automotive hose life?
FAQ - Q6Will a worn automotive hose affect gas mileage?
Features & Benefits - B1Has a heat and ozone resistant cover to increase the life of the hose
Features & Benefits - B2Comes with a protective sleeve to help duplicate GM OE designs for proper fit and function
Features & Benefits - B3Made of re-engineered materials to resist vacuum collapse and also reduce the need for internal springs in many applications
Features & Benefits - B4Installs without buckling, bending out of shape, or straining at the connection for easy installation
Features & Benefits - B5Inside diameters ranges from 1/4 in to 1 in to fit different types of vehicles
Good Maintenance Practices - S1 B1Examine hoses every 12 months. Look for leaks, cracks, or rot. Replace when showing signs of wear.
Good Maintenance Practices - S1 B2Tighten any loose clamps. Replace clamps when replacing hoses.
Good Maintenance Practices - S1 B3Have cooling system inspected immediately if instrument panel-mounted temperature gauge indicates engine overheating.
Good Maintenance Practices - S1 B4Periodically remove bugs, leaves, and other debris from the front of the radiator. They can block airflow and substantially reduce cooling efficiency.
Good Maintenance Practices - S1 B5Though electrochemical degradation occurs from the inside out, you can feel for voids, cracks, or weak spots. Squeeze the hose with your thumb and two or three fingers. If you're not sure, remove the hose and check it visually.
Marketing Statement - Product LineBuilt to meet the latest demands, ACDelco's Belts and Hoses line includes automotive belts and hoses, tensioners, pulleys, and kits. ACDelco offers a wide variety of Professional premium, aftermarket parts, and a select offering of GM Original Equipment Belts that fit a variety of vehicles on the road today.
Marketing Statement - Sub BrandWhen it comes to replacing your Belts, ACDelco offers a full line of Professional, premium aftermarket Belt products. To help make part replacement simple and precise, ACDelco also offers pulleys, tensioners, and kits. ACDelco Professional, premium aftermarket belts fit both GM and Non GM vehicles.
MaterialReinforced Rubber
Measurements1 5/16 in x 10 3/32 in
Mkt_State_Warranty_CALimited Lifetime Warranty as long as original purchaser still owns vehicle (Parts Only).
Mkt_State_Warranty_USLimited Lifetime as long as original purchaser owns vehicle. (Parts Only)
Product DescriptionACDelco Professional, premium aftermarket Molded Coolant Hoses are composed of specially blended materials to help resist electrochemical degradation (ECD), the leading cause of hose failure. They are specially designed, GM OE style factory-molded hoses to fit today's smaller, tighter-fitting engine compartments. ACDelco Professional Molded Coolant Hoses are temperature rated from -40 degrees Fahrenheit to 275 degrees Fahrenheit (-40 degrees Celsius to 135 degrees Celsius) and are approved for Marine applications. Do not use for fuel or oil transfer applications. These premium aftermarket replacement molded coolant hoses are manufactured to meet your expectations for fit, form, and function.
Programming RequiredNO
Protective Sleeve AttachedNO
Signs of Wear & Troubleshooting - S1 B1Signs of electrochemical degradation include voids, cracks, or weak spots on the inside of the hose.
Signs of Wear & Troubleshooting - S1 B2Signs of internal heat damage include slight swelling of the hose cover.
Signs of Wear & Troubleshooting - S1 B3Signs of external heat damage include hardening or cracking of the hose cover.
Signs of Wear & Troubleshooting - S1 B4Other signs of wear include oil damage, abrasion damage, brittleness, lack of heat/cooling within the cabin, ozone damage, and leakage of the hose.
Usage ChartPL35_UC_AutoHoses.jpg



  • 2004-2007 Buick Rainier - Position: Upper
  • 2002-2009 GMC Envoy - Position: Upper
  • 2002-2004 Oldsmobile Bravada - Position: Upper
  • 2002-2006 GMC Envoy XL - Position: Upper
  • 2005-2009 Saab 9-7x - Position: Upper
  • 2002-2009 Chevrolet Trailblazer - Position: Upper
  • 2003-2008 Isuzu Ascender - Position: Upper
  • 2004-2005 GMC Envoy XUV - Position: Upper
  • 2002-2006 Chevrolet Trailblazer EXT - Position: Upper
Customer Questions
Does AC Delco make Ford parts?
No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.
Can I use AC Delco parts to replace OEM parts?
Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.
What AC Delco oil filter do I need?
AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.
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