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GM 12703898
Water Pump

2003-2006 GM

Customer Questions & Expert Answers (6)
GM 12703898 Water Pump
GM 12703898 Water Pump
GM 12703898 Water Pump
GM 12703898 Water Pump
GM 12703898 Water Pump
GM 12703898 Water Pump
GM 12703898 Water Pump
GM 12703898 Water Pump
GM 12703898 Water Pump
  • Part Description
    Pump Kit-Water *Use Together With Gask
  • Replaces
    12681184, 12686763, 19256261
  • Manufacturer
    General Motors
Make sure this part fits
$187.62 MSRP: $364.18
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  • 12703898 Water Pump is Ref No. 1 in the diagram below

    2004 Chevy Express 1500 Water Pump Diagram for 12703898
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 12703898

  • Vehicle Fitment

    Year Make Model Trim Engine
    2003-2006 Chevrolet Express 1500Base, LS, LT8 Cyl 5.3 L GAS
    2003-2006 Chevrolet Express 2500Base, LS, LT8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
    2003-2006 Chevrolet Express 3500Base, LS, LT8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
    2003-2006 GMC Savana 1500Base, LS, LT, SLE8 Cyl 5.3 L GAS
    2003-2006 GMC Savana 2500Base, SLE8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
    2003-2006 GMC Savana 3500Base, LS, LT, SLE8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
    Warning: California's Proposition 65

  • Customer Questions & Expert Answers

    Q:
    Is this 12703898 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 12703898 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the water pump on 4.8L, 5.3L, and 6.0L engines on GMC Savana 1500? Posted by Customer
    A:
    Before working on water pumps for 4.8l, 5.3l, and 6.0l engines drain the cooling system then detach air cleaner, fan clutch, and accessory Drive Belt pieces. You need to disconnect the inlet hose first at both clamps before pulling it free from the Water Pump. Next remove the outlet hose by unclipping its clamps. After that take off the heater inlet hose clamp and disconnect the hose from the heater. Take out the Water Pump by removing the bolts first and then taking out the unit with its gaskets for proper disposal. Apply new gaskets when you install the Water Pump while keeping all components clean from oil and other debris. Apply new Water Pump gaskets before installing the Water Pump. Secure its bolts at 15 nm and tighten them to 30 nm during final torque. Fasten the heater hose inlet first then add the outlet and inlet clamp. Reattach the belt for the accessories, fan and compressor parts, and place the air filter unit back in place. Also add fluid to the cooling system.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the water pump on 4.8L, 5.3L, and 6.0L engines on GMC Savana 2500? Posted by Customer
    A:
    You need to empty the cooling system first then uninstall the air cleaner, fan blade, heaters' hoses before taking off their brackets from the Water Pump. Take out the Water Pump assembly by first removing its bolts and then the accessory tensioner pair. Discard the used gaskets while installing new ones over the pump. Before installing the Water Pump with new gaskets ensure all gasket contacts are clean. Then use Water Pump bolts to fasten the parts first to 15 nm (11 ft. Lbs.) and then to 30 nm (22ft lbs.). Fasten the heater inlet hose to its clamp then connect both outlet and inlet hoses to their clamps. Place back the accessory Drive Belt tensioner and bolts while tightening them to 50 nm (37 ft. Lbs.). Install the accessory Drive Belt, fan blade, and air cleaner assembly. Finally, fill the cooling system.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to Ensure Proper Installation of a Water Pump on GMC Savana 2500? Posted by Customer
    A:
    The first step to replace a Water Pump is draining the cooling system while also removing air cleaner assembly components including Fan Clutch and accessory Drive Belt. Move the inlet hose clamp aside and detach the inlet hose before transferring the outlet hose clamp and taking out the outlet hose. You should now relocate the heater inlet hose clamp to disconnect the hose. Take out the Water Pump while removing its bolts and discard the original gaskets. Put new gaskets on the Water Pump before installation and make sure all sealing surfaces stay dry. Put on the Water Pump with new gaskets first, screw in all Water Pump bolts, but leave them at 15 nm (11 ft. Lbs.) before torquing them to their final value of 30 nm (22 ft. Lbs.). Reposition the heater inlet hose with its clamp before connecting the outlet hose with its clamp and finally installing the inlet hose and its clamp. After these pieces you reattach the accessory Drive Belt, fan blade, clutch assembly, air cleaner assembly and complete filling the cooling system.
    Posted by ChevyPartsGiant Specialist
    Q:
    What is the torque specification for the water pump bolts for the 2006 Chevrolet Express 1500? Posted by Customer
    A:
    Tighten them first to 15 Nm (11 ft. lbs.) and then to a final torque of 30 Nm (22 ft. lbs.).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Water Pump
    Q:
    How do you install the water pump pulley for the 2005 Chevrolet Express 2500? Posted by Customer
    A:
    Use the Fan Clutch Remover and Installer (J 41240) to hold the water pump pulley while installing and tightening the pulley bolts to 25 Nm (18 ft. lbs.).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Water Pump
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Water Pump 12703898 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 12703898 Water Pump is available in the market under the name GM Water Pump. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 12703898 Water Pump fits certain Chevrolet Express 1500, Express 2500, Express 3500 models, as well as GMC Savana 2500, Savana 3500, Savana 1500 models.
The original GM component designated by manufacturer part number 12703898 maintains top performance when functioning as the Pump Kit-Water *Use Together With Gask unit. The component 12703898 is constructed from durable material and its dimensions span 21.5 x 16.1 x 9.4 inches while weighing 11.50 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Pump Kit, Engine Coolant. The part 12703898 has available replacement options 12681184, 12686763, 19256261. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
If you want to save money in the long run on maintenance and repairs, you should choose OEM products because they're of the top level of durability. Are you on the quest of finding GM parts, our site is worth a visit. We stock an endless selection of high-quality GM components including things like ignition coils all the way through to fan shrouds and all at prices that can not be matched. You have nothing to worry about because all our OEM parts are covered with a manufacturer warranty, which guarantees superior quality and value.