Make sure this part fits your vehicle

Buick 12551138 Balancer,Crankshaft

1994-1996 Buick Roadmaster

GM 12551138 Balancer,Crankshaft
  • Part Description
    BALANCER, Engine Crankshaft And Camshaft Balancer
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Customer Questions & Answers
  • Product Specifications

    BrandGenuine Buick
    Manufacturer Part Number12551138
    Part DescriptionBALANCER, Engine Crankshaft And Camshaft Balancer
    Other NamesBalance, Pulley, Vibration Damper
    Item Dimensions8.8 x 8.3 x 3.2 inches
    Item Weight8.60 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12551138
    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
    1994-1996 Buick Roadmaster8 Cyl 5.7L4 DOOR, LIMITED, LIMITED SEDAN, STATION WAGON

Customer Questions & 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 12551138 fits your vehicle.
Posted by GMPartsGiant Specialist
Q:
How do you remove the Crankshaft Damper? Posted by Customer
A:
To remove the 4.5L engine, start by disconnecting the negative battery cable and removing the serpentine belt. Then, raise and support the vehicle securely, and remove the right front wheel and tire. Take off the right front air deflector and support the body of the car and the right side of the engine cradle. Lower the right side of the cradle and remove the harmonic balancer bolt and washer. Use a puller to remove the balancer. To install the engine, lubricate the hub and seal with EP lubricant and position the balancer on the crankshaft, aligning the key slot in the hub with the key on the crankshaft. Use an installer tool to bottom the hub out on the crankshaft and then install the harmonic balancer bolt and washer. Lighten it to 60 ft. lbs. Raise the right side of the cradle and position the ball joint to the steering knuckle while raising. Support the body and the right side of the engine cradle, and install the right side engine cradle body bolts. Install the right front air deflector, the right front wheel and tire, and lower the vehicle. Finally, connect the negative battery cable. For the 4.9L engine, follow similar steps, but tighten the harmonic balancer bolt to 70 ft. lbs. For the 4.6L engine, disconnect the negative battery cable and release tension from the accessory drive belt. Raise and support the vehicle, remove the right front wheel, and remove the splash shields and brace. Support the engine cradle and remove the bolts from the right side. Disconnect the RSS sensor and use a flywheel holder tool to remove the balancer bolt. Lower the engine cradle and install a pilot tool into the crankshaft. Use a puller tool to remove the harmonic balancer. To install, position the balancer to the crankshaft and use a tool to install it. Clean the balancer bolt threads and tighten it to 105 ft. lbs. plus 120 degrees. Raise the engine cradle and install the bolts, then reconnect the suspension position sensors. Remove the flywheel holder tool and install the oil pan-to-transmission brace. Install the wheelhouse splash shields and the right front wheel. Lower the vehicle and install the accessory drive belt. Finally, connect the negative battery cable.
Posted by GMPartsGiant Specialist
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Genuine GM Part 12551138, the Right Choice

Your vehicle deserves only genuine OEM GM parts and accessories. To ensure reliability, purchase GM part # 12551138 Balancer,Crankshaft. It is sometimes referred to as Buick Harmonic Balancer. Our GM parts and accessories are expedited directly from authorized GM dealers strategically located all across the U.S. and are backed by the manufacturer's 12 month, 12,000 mile warranty. OEM GM parts are the best for restoring your vehicle to factory condition performance. This part fits specific Buick Roadmaster models.

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