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Buick 25516025 Crankshaft

1984-1988 Buick

Customer Questions & Expert Answers (4)
GM 25516025 Crankshaft
  • Part Description
    Crankshaft
  • 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 Buick
    Manufacturer Part Number25516025
    Part DescriptionCrankshaft
    Item Dimensions21.8 x 7.7 x 7.7 inches
    Item Weight35.80 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU25516025
    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
    1984-1988 Buick Century6 Cyl 3.8LCUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR
    1985-1988 Buick Electra6 Cyl 3.8L2 DOOR, 4 DOOR, COUPE 2 DOOR, LIMITED 2 DOOR, LIMITED 4 DOOR, SEDAN 4 DOOR, T-TYPE COUPE 2 DOOR, T-TYPE SEDAN 4 DOOR
    1986 Buick Lesabre6 Cyl 3.8LCUSTOM 2 DOOR, CUSTOM 4 DOOR, LIMITED 2 DOOR, LIMITED 4 DOOR
    1986 Buick Riviera6 Cyl 3.8LRIVIERA, T TYPE
  • Customer Questions & Expert Answers

    Q:
    I would like to confirm if this is the correct part number for my vehicle. Please advise. Thank you. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 25516025 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove and install the Crankshaft on Buick Century? Posted by Customer
    A:
    To remove the engine, first drain the oil and remove it from the car. You should mount the engine on a work stand with the oil pan facing up. The next steps involve removing the front cover, timing chain and gears, oil pan, and oil pump. For identification purposes, stamp the cylinder number on connecting rod bolt bosses and caps. You have to protect crank journals by installing rubber hose over there before removing connecting rod caps. Finally, mark all main bearing caps to remember how they were on installation. Slowly lift out the crankshaft after removing all main bearing caps. If necessary, replace both upper and lower halves of these crankshaft main bearings that should be cleaned carefully at first. Examine clearance by using Plastigage® along with replacing bearings if required. Before installing them in place, install crankshaft together with bearings while cap bolts must be torqued per specifications. At last, measure end play of this shaft then fix a rear main bearing seal on its place.
    Posted by GMPartsGiant Specialist
    Q:
    What should be done instead of filing the caps for the 1986 Oldsmobile Cutlass? Posted by Customer
    A:
    Fit new shell bearings after checking the crankshaft journals and crankpins for ovality and confirming their diameters.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Crankshaft
    Q:
    What should be done with the main bearings after removing them for the 1984 Oldsmobile Cutlass? Posted by Customer
    A:
    Take out the main bearings from both the cylinder block and the main bearing caps, ensuring they are kept separated according to their positions.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Crankshaft
    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 25516025, the Right Choice

To ensure reliability, purchase GM part # 25516025 Crankshaft. It is sometimes referred to as Buick Crankshaft. 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 Buick Century, Electra, Lesabre models.

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