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GM 10421339
Upper Hose

1994-2005 GM

Customer Questions & Expert Answers (26)
GM 10421339 Upper Hose
GM 10421339 Upper Hose
  • Part Description
    Hose, Radiator Inlet (Upper); Multi Purpose Hose; Radiator Hose; Cooling Hose
  • Position
    Upper
  • Replaces
    10233201, 10401999
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number10421339
    Part DescriptionHose, Radiator Inlet (Upper); Multi Purpose Hose; Radiator Hose; Cooling Hose
    Item Dimensions5.7 x 5.2 x 17.3 inches
    Item Weight1.30 Pounds
    PositionUpper
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces10233201, 10401999
    ManufacturerGeneral Motors
    SKU10421339
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Trim Engine
    1997-2005 Buick CenturyCustom, Limited, Special Edition6 Cyl 3.1 L GAS
    1994-2004 Buick Regal25th Anniversary Edition, Custom, GS, GSE, LS, LSE6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS
    2000-2003 Chevrolet ImpalaBase, LS, LS Sport, Police6 Cyl 3.4 L GAS, 6 Cyl 3.8 L GAS
    1995-2001 Chevrolet LuminaBase, LS, LTZ6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS
    1995-2003 Chevrolet Monte CarloIndianapolis 500 Pace Car, LS, LS Competition, LS Sport, SS, SS 35th Anniversary Edition, SS Dale Earnhardt Signature Edition, SS High Sport, SS Pace Car, Z346 Cyl 3.1 L GAS, 6 Cyl 3.4 L GAS, 6 Cyl 3.8 L GAS
    1997 Oldsmobile CutlassGLS6 Cyl 3.1 L GAS
    1994-1997 Oldsmobile Cutlass SupremeBase, S, SL6 Cyl 3.1 L GAS, 6 Cyl 3.4 L GAS
    1998-1999 Oldsmobile IntrigueBase, GL, GLS, GX6 Cyl 3.8 L GAS
    1994-2003 Pontiac Grand PrixBase, GT, GTP, SE6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS
  • Customer Questions & Expert Answers

    Q:
    Is this 10421339 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 10421339 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the outlet radiator hose on Buick Regal? Posted by Customer
    A:
    The procedure to replace outlet Radiator hoses begins with draining the cooling system after removing lower Radiator air deflector components. You need to use hose clamp pliers (J 38185) to direct the hose clamp from the Radiator position and after that disconnect the outlet hose from the Radiator surface. Lower the vehicle before using hose clamp pliers (J 38185) to reposition the hose clamp from the water pump housing and then disconnect the outlet hose from this housing and remove the outlet hose. The installation process requires you to place the marked sections on the new hose to the water pump housing while employing hose clamp pliers (J 38185) to install the hose clamp on the water pump housing. Before installing the outlet hose to the Radiator you must raise your vehicle and perform the hose clamp installation with hose clamp pliers (J 38185) on the Radiator outlet hose. The maintenance procedure ends with installing the lower Radiator air deflector while also completing the cooling system fill.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the outlet radiator hose on Chevrolet Lumina? Posted by Customer
    A:
    The first step to replace an outlet Radiator Hose requires drainage of the cooling system. Apply hose clamp pliers j38185 to move the water pump housing hose clamp before removing the outlet hose from this location. Reposition the hose clamp at the Radiator using hose clamp pliers (J38185) to disconnect the outlet hose from Radiator before removing it. Installation requires aligning marks on the new hose before installing the outlet hose to the Radiator section. The hose clamp pliers (J38185) must be used to clamp the Radiator Hose before attaching its outlet to the water pump housing. Use the pliers once more to install the new hose clamp at the water pump housing. The process ends with filing the cooling system followed by leak inspection.
    Posted by ChevyPartsGiant Specialist
    Q:
    What is the next step after disconnecting the hose from the thermostat housing for the 2002 Buick Century? Posted by Customer
    A:
    Use the Hose Clamp Pliers (J 38185) to reposition the hose clamp at the radiator and disconnect the radiator inlet hose from the radiator.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the next step after reinstalling the lower radiator air deflector for the 2004 Buick Century? Posted by Customer
    A:
    Connect the outlet hose to the water pump housing.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the next step after securing the outlet hose to the radiator for the 2000 Buick Century? Posted by Customer
    A:
    Install the outlet hose to the water pump housing and use the Hose Clamp Pliers (J38185) to reposition and install the hose clamp at the water pump housing.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the final step after installing the outlet hose and securing the clamps for the 2002 Buick Century? Posted by Customer
    A:
    Finally, fill the cooling system.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the next step after disconnecting the outlet hose from the water pump housing for the 2005 Buick Century? Posted by Customer
    A:
    Remove the lower radiator air deflector.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the next step after securing the new radiator hose for the 2003 Buick Century? Posted by Customer
    A:
    Reinstall the lower radiator air deflector.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    How do you secure the outlet hose to the radiator for the 2001 Buick Century? Posted by Customer
    A:
    Use the Hose Clamp Pliers (J 38185) to reposition and install the hose clamp at the radiator.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the first step to replace the outlet radiator hose for the 2003 Buick Regal? Posted by Customer
    A:
    First, drain the cooling system and remove the lower radiator air deflector.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the next step after securing the new hose at the water pump housing for the 2001 Buick Regal? Posted by Customer
    A:
    Install the outlet hose to the radiator.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the final step after installing the outlet hose for the 2002 Buick Regal? Posted by Customer
    A:
    Fill the cooling system.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the first step to replace the outlet radiator hose for the 2000 Buick Regal? Posted by Customer
    A:
    First, drain the cooling system.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the next step after disconnecting the hose from the radiator for the 2004 Buick Regal? Posted by Customer
    A:
    Use the Hose Clamp Pliers (J 38185) to reposition the hose clamp at the thermostat housing.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    How do you secure the new radiator inlet hose for the 2003 Buick Regal? Posted by Customer
    A:
    Reposition and install the hose clamp at the thermostat housing with the Hose Clamp Pliers (J 38185), then connect the radiator inlet hose to the radiator.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the process for installing the new hose for the 2000 Chevrolet Impala? Posted by Customer
    A:
    Align the marks on the new hose and install it to the radiator, using the Hose Clamp Pliers (J 38185) to reposition and install the hose clamp at the radiator.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What should you do after removing the hose from the water outlet housing for the 2001 Chevrolet Impala? Posted by Customer
    A:
    Use the Hose Clamp Pliers (J 38185) to reposition the hose clamp from the radiator before removing the radiator inlet hose from the radiator and the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the final step in the process for the 2000 Chevrolet Monte Carlo? Posted by Customer
    A:
    Use the Hose Clamp Pliers (J 38185) to reposition and install the hose clamp at the water pump housing, fill the cooling system, and inspect for leaks.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    How do you install the new radiator inlet hose for the 2003 Chevrolet Impala? Posted by Customer
    A:
    Align the marks on the hose and install the radiator inlet hose to the radiator, using the Hose Clamp Pliers (J 38185) to reposition and install the hose clamp to the radiator.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What should be removed after draining the coolant for the 2000 Chevrolet Monte Carlo? Posted by Customer
    A:
    Remove the left diagonal brace.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the next step after securing the inlet hose clamp at the radiator for the 2001 Chevrolet Lumina? Posted by Customer
    A:
    Connect the inlet hose to the thermostat housing.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the first step to replace the radiator outlet hose on a 3.4L engine for the 2003 Chevrolet Monte Carlo? Posted by Customer
    A:
    First, drain the cooling system.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What should be done after installing the outlet hose to the radiator for the 2002 Chevrolet Monte Carlo? Posted by Customer
    A:
    Reinstall the lower radiator air deflector, lower the vehicle, and install the radiator outlet hose to the water pump housing.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What is the next step after removing the radiator outlet hose from the water pump housing for the 2001 Chevrolet Monte Carlo? Posted by Customer
    A:
    Raise and support the vehicle, and remove the radiator lower air deflector.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    Q:
    What should be done after installing the inlet hose to the water outlet housing for the 2002 Chevrolet Impala? Posted by Customer
    A:
    Reinstall the left diagonal brace and fill the cooling system.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Radiator Hose
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM 10421339, Excellent Performance and Perfect Fitment

To ensure reliability, purchase GM part # 10421339 Upper Hose. It is sometimes referred to as GM Cooling Hose, GM Radiator Hose. Choosing OEM parts is the optimal decision for guaranteeing superior quality and perfect performance. These components undergo stringent quality checks and are carefully constructed to comply with GM's factory specifications, ensuring a smooth installation process.

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