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GM 12684590 Balancer Assembly, Crankshaft

2014-2020 GM

Customer Questions & Expert Answers (5)
GM 12684590 Balancer Assembly, Crankshaft
  • Part Description
    Balancer Assembly, Cr/Shf
  • Replaces
    12620312, 12662037
  • Manufacturer
    General Motors
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  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12684590
    Part DescriptionBalancer Assembly, Cr/Shf
    Other NamesCrankshaft Pulley, Vibration Damper
    Item Dimensions9.5 x 8.6 x 6.5 inches
    Item Weight12.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12620312, 12662037
    ManufacturerGeneral Motors
    SKU12684590
    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 Engine Important vehicle option details
    2015-2020 Cadillac Escalade8 Cyl 6.2L1/2 TON, 1500 4 DOOR, 1500 4 DOOR SUV, 1500 4 DOOR UTILITY, 1500 CREW CAB, 1500 CREW CAB STANDARD BOX, 4 DOOR 1/2 TON, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX
    2018 Chevrolet Express6 Cyl 4.3L1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS
    2014-2019 Chevrolet Silverado6 Cyl 4.3L, 8 Cyl 5.3L, 8 Cyl 6.2L1500 CREW CAB, 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON
    2015-2020 Chevrolet Suburban8 Cyl 5.3L, 8 Cyl 6.2L1500 4 DOOR UTILITY
    2015-2020 Chevrolet Tahoe8 Cyl 5.3L, 8 Cyl 6.2L1500 4 DOOR UTILITY
    2018 GMC Savana6 Cyl 4.3L1 TON CARGO SAVANA, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO SAVANA, 3/4 TON PASSENGER SAVANA
    2014-2019 GMC Sierra6 Cyl 4.3L, 8 Cyl 5.3L, 8 Cyl 6.2L1500 CREW CAB, 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON
    2015-2020 GMC Yukon8 Cyl 5.3L, 8 Cyl 6.2L1500 4 DOOR SUV, 1500 4 DOOR UTILITY, 4 DOOR, 4 DOOR SUV
  • Customer Questions & Expert Answers

    Q:
    I am wonder if this is complete and correct part for my vehicle. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 12684590 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How to install a harmonic balancer in V6 engine on Cadillac Escalade? Posted by Customer
    A:
    This procedure, as is the case with any balancer installation, needs a balancer installation tool, and a new harmonic balancer bolt hence, the reader is advised to go through the entire procedure and ensure that he has all the recommended tools and materials. First of: remove the cable from the grounding terminal of the battery. Next, jack up the front of the vehicle and position the jack stands correctly after which engage the parking brake. Take off the drivebelt, air conditioning compressor belt, and vacuum pump bell; then, the cooling fan and shroud assembly. First of all, and at the bottom of the car, unbolt and take out the stone shield if it is provided, and then take out the starter motor. Slot a driveplate holding tool onto the ring gear teeth and screw it to the engine block. The balancer can be removed using a puller; the jaws of which, should only rest on the hub of the balancer and not the outer ring. It is recommended to use the proper adapter or a long Allen-head bolt in the case inserted into the crankshaft nose to apply force on its smooth tapered tip to avoid destruction of the crankshaft thread. Place the crankshaft pulley/harmonic balancer over the crankshaft and slide it up as much as possible then use the Balancer Installation tool to tap it into place. Replace the old harmonic balancer bolt with the new one; tighten it to the required torque then measuring the distance from the crankshaft snout to the balancer hub it should go 3/32 in to 11/64 in beyond the crankshaft snout. If the indicated measurement is off, then refer to the balancer installation tool, place the balancer by pressing on the measurement until the correct measurement is displayed. Lastly, fit a new harmonic balancer bolt and, in turning the balancer to the tight position, apply the specified FIG torque and rotate to the specified angle of turn back, follow the reverse process of removing it.
    Posted by GMPartsGiant Specialist
    Q:
    How to install a harmonic balancer in V8 engine on Cadillac Escalade? Posted by Customer
    A:
    This procedure requires a special balancer installation tool and a new harmonic balancer bolt, so it is important to read through the entire process and gather the necessary tools and materials beforehand. Begin by disconnecting the cable from the negative terminal of the battery. Next, raise the front of the vehicle and support it securely on jackstands, then apply the parking brake. Remove the drivebelt, air conditioning compressor belt, and, for 5.3L/6.2L models, the vacuum pump belt, followed by the cooling fan and shroud assembly. Working under the vehicle, remove the stone shield from below the engine if equipped, and then remove the starter motor. Install a driveplate holding tool into the ring gear teeth and bolt it to the engine block. Use a puller to remove the balancer from the crankshaft, ensuring the puller jaws only contact the hub of the balancer and not the outer ring. Insert the proper adapter or a long Allen-head bolt into the crankshaft nose for the puller's tapered tip to push against, preventing damage to the crankshaft threads. Position the crankshaft pulley/harmonic balancer on the crankshaft and slide it on as far as it will go, then use the balancer installation tool to press it onto the crankshaft. Install the old harmonic balancer bolt and tighten it to the specified torque, then measure the distance from the snout of the crankshaft to the balancer hub; the hub should extend 3/32 to 11/64-inch past the crankshaft snout. If the measurement is incorrect, reinstall the balancer installation tool and press the balancer on until the measurement is correct. Finally, install a new harmonic balancer bolt and tighten it to the specified torque and angle of rotation, completing the installation by reversing the removal steps.
    Posted by GMPartsGiant Specialist
    Q:
    What precaution should be taken to avoid damaging the crankshaft threads for the 2018 Chevrolet Express? Posted by Customer
    A:
    Insert a long Allenhead bolt into the crankshaft nose for the puller's tapered tip to push against, or use an adapter on the end of the crankshaft.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Harmonic Balancer
    Q:
    What is the procedure for positioning the crankshaft pulley/balancer for the 2018 Chevrolet Express? Posted by Customer
    A:
    Position the crankshaft pulley/balancer on the crankshaft and slide it on as far as it will go.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Crankshaft Pulley
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine GM Part 12684590, the Right Choice

To ensure reliability, purchase GM part # 12684590 Balancer Assembly, Crankshaft. It is sometimes referred to as GM Crankshaft Pulley, GM Harmonic Balancer. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Cadillac Escalade models. It fits Chevrolet Express, Silverado, Tahoe. It also fits GMC Savana, Sierra, Yukon.

GMPartsGiant.com is a leading supplier of genuine GM parts and accessories such as GM 12684590 Balancer Assembly, Crankshaft. You're certainly in the right place if you're searching for the great cost-effective OEM GM parts. Look no further than our vast inventory of genuine GM parts offered at unbeatable online prices, all of which are backed by the manufacturer's warranty. Not to forget, our hassle-free return policy and quick delivery service ensure a smooth shopping experience for you. For detailed GMC parts information, click here.

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