This replacement UPPER radiator hose is among the highest quality replacements on the market!

Specifications:

  • UPPER Radiator Hose
  • Replaces dealer part number: 10421339
  • Direct replacement for a weakened or leaking hose
  • Made from high quality rubber for superb fit & function
  • Built to strict quality control standards
  • Small End Inside Diameter: 1-5/16"
  • Large End Inside Diameter: 1-5/16"
  • Length: 17"

Item Condition: New

Wear and Tear

This item is backed by a 60-day warranty against defects in materials and workmanship under its intended use. The warranty does not cover normal wear and tear. 

  1. step : Remove the upper radiator hose. (0:55)
    • Unbolt the brace with a 13 mm socket and ratchet.
    • Pull your coolant bottle hose aside out of the way.
    • Use a pair of pliers to unclamp the ends of the hose and pull the hose off.
    • Wipe down the area with a cloth and clean any corrosion on the fitting with a wire brush.
  2. step : Install the new upper radiator hose from 1A Auto (2:50)
    • Use the pliers to fit the clamps on the end of the hose.
    • Position the hose onto the fittings and use the pliers to slide the clamps down onto the fitting and tighten them.
    • Fill your coolant reservoir with the appropriate coolant for you vehicle (specified in the owner’s manual)
    • Plug the coolant bottle hose back in and bolt down the brace with your 13 mm socket and ratchet.

Tools needed for replacement:

    Pliers, Cutters & misc Wrenches

  • Slip-Joint Pliers

  • Ratchets & Related

  • Ratchet

  • Sockets - Metric

  • 13mm Socket

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Vehicle Fit

Year Make Model Description
2005-2008Buick Allure Buick Allure Upper Radiator Hose V6 3.8L (8th Vin Digit 2)
1998-1999Buick Century Buick Century Upper Radiator Hose V6 3.1L (8th Vin Digit M)
2000-2005Buick Century Buick Century Upper Radiator Hose V6 3.1L (8th Vin Digit J)
2005-2009Buick LaCrosse Buick LaCrosse Upper Radiator Hose V6 3.8L (8th Vin Digit 2)
1996-2004Buick Regal Buick Regal Upper Radiator Hose V6 3.8L (8th Vin Digit K)
1997-2004Buick Regal Buick Regal Upper Radiator Hose V6 3.8L (8th Vin Digit 1)
2005-2006Buick Terraza Buick Terraza Upper Radiator Hose V6 3.5L (8th Vin Digit L)
2000-2005Chevy Impala Chevy Impala Upper Radiator Hose V6 3.8L (8th Vin Digit K)
2000-2005Chevy Impala Chevy Impala Upper Radiator Hose V6 3.4L (8th Vin Digit E)
2004-2005Chevy Impala Chevy Impala Upper Radiator Hose V6 3.8L (8th Vin Digit 1)
1998-1999Chevy Lumina Chevy Lumina Upper Radiator Hose V6 3.8L (8th Vin Digit K)
1998-1999Chevy Lumina Chevy Lumina Upper Radiator Hose V6 3.1L (8th Vin Digit M)
2000-2001Chevy Lumina Chevy Lumina Upper Radiator Hose V6 3.1L (8th Vin Digit J)
1998-2005Chevy Monte Carlo Chevy Monte Carlo Upper Radiator Hose V6 3.8L (8th Vin Digit K)
1998-1999Chevy Monte Carlo Chevy Monte Carlo Upper Radiator Hose V6 3.1L (8th Vin Digit M)
2000-2005Chevy Monte Carlo Chevy Monte Carlo Upper Radiator Hose V6 3.4L (8th Vin Digit E)
2004-2005Chevy Monte Carlo Chevy Monte Carlo Upper Radiator Hose V6 3.8L (8th Vin Digit 1)
2005-2006Chevy Uplander Chevy Uplander Upper Radiator Hose V6 3.5L (8th Vin Digit L)
1998-1999Oldsmobile Intrigue Olds Intrigue Upper Radiator Hose V6 3.8L (8th Vin Digit K)
1997-2003Pontiac Grand Prix Pontiac Grand Prix Upper Radiator Hose V6 3.8L (8th Vin Digit K)
1997-2003Pontiac Grand Prix Pontiac Grand Prix Upper Radiator Hose V6 3.8L (8th Vin Digit 1)
1998-1999Pontiac Grand Prix Pontiac Grand Prix Upper Radiator Hose V6 3.1L (8th Vin Digit M)
2000-2003Pontiac Grand Prix Pontiac Grand Prix Upper Radiator Hose V6 3.1L (8th Vin Digit J)
2004-2008Pontiac Grand Prix Pontiac Grand Prix Upper Radiator Hose V6 3.8L (8th Vin Digit 2)
2004-2007Pontiac Grand Prix Pontiac Grand Prix Upper Radiator Hose V6 3.8L (8th Vin Digit 4)
2005Pontiac Montana Pontiac Montana Upper Radiator Hose V6 3.5L (8th Vin Digit L)
2005-2007Saturn Relay Saturn Relay Upper Radiator Hose V6 3.5L (8th Vin Digit L)

This part replaces:

  • OE # 10421339
Only 2 left in stock
Part #: 1ARHU00002


Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(05:40 min)