🚘 5% off on orders of $299+ 🚘
Discount Applied in Cart ****due to snow and ice in our area we cannot ship anything out until 1/30/26*****
  Order Parts
  Contact Us
  Help Menu
No Vehicle Selected
Search Bar 3
Contact Us: (432) 699-4619
Search All Vehicles
Search Bar 5
Buick Cadillac Chevrolet Ford GMC Hummer Lincoln Mercury Oldsmobile Pontiac Saturn
Air Filters Alternators Assembly Kits Belts Body Parts Brake Calipers Brake Pads Brake Rotors Brakes Engine Parts Harnesses Ignition Parts Induction Parts Maintenance Parts Oil Filters Radiator and Cooling Parts Shocks and Struts Spark Plugs
Bumpers Cargo Organizers Cargo Trays Consoles Emblems Exterior Accessories Floor Mats Grilles Interior Accessories Knobs Lighting Components Mud Guards Roof Racks Wheel Accessories Wheels
About Us Contact Us Order Status Login Shipping Policy Return Policy
Home Categories Engines & Components Complete Engines GM 12556121

Short Block - GM (12556121)

1984-2000 GM - 12556121

Short Block - GM (12556121)

Image is not a representation of the actual product

Short Block - GM (12556121)

1984-2000 GM - 12556121

Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts
  • GM
  • 12556121
  • 12568757, 14101311

Details

  • Brand:

    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts

  • SKU:

    12556121

  • Other Names:

    Engine Short Block,

  • Description:

    All. 5.7l. (k). Vin (k). All. 5.7l. (l). Under 8500lb gvw. Under GVW 8,500 lbs.
  • Notes: Includes Block, Piston & Pin Assembly, Crankshaft Bearings & Rear Seal.
  • Applications: 8 CYLINDER - 5.0L, 5.7L.
  • Replaces:

    12568757, 14101311

Warning WARNING: California Proposition 65
Make sure this part fits your Car
OR

Discontinued Product

No Longer Available For Purchase

Packages shipped within the U.S. and Puerto Rico will automatically be protected from any loss, damage, and theft. Learn More

Manufacturer Warranty Minimum of 12 Months
Guaranteed Fitment Always the correct parts
Shop with Confidence Your information is safe
In-House Experts We know our products

PLEASE NOTE: SOME PARTS ARE SUBJECT TO AVAILABILITY, and some may require special ordering from the manufacturer.

Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts
  • GM
  • 12556121
  • 12568757, 14101311

Details

  • Brand:

    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts

  • SKU:

    12556121

  • Other Names:

    Engine Short Block,

  • Description:

    All. 5.7l. (k). Vin (k). All. 5.7l. (l). Under 8500lb gvw. Under GVW 8,500 lbs.
  • Notes: Includes Block, Piston & Pin Assembly, Crankshaft Bearings & Rear Seal.
  • Applications: 8 CYLINDER - 5.0L, 5.7L.
  • Replaces:

    12568757, 14101311

Warning WARNING: California Proposition 65

Short Block - GM (12556121)

1984-2000 GM - 12556121

Vehicle Fitment

Vehicle Fitment
Year Make Model Body & Trim Engine & Transmission
( more fitments)
No fitment data available

Details

  • Brand:

    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts

  • SKU:

    12556121

  • Other Names:

    Engine Short Block,

  • Description:

    All. 5.7l. (k). Vin (k). All. 5.7l. (l). Under 8500lb gvw. Under GVW 8,500 lbs.
  • Notes: Includes Block, Piston & Pin Assembly, Crankshaft Bearings & Rear Seal.
  • Applications: 8 CYLINDER - 5.0L, 5.7L.
  • Replaces:

    12568757, 14101311

Warning WARNING: California Proposition 65
Manufacturer Warranty Minimum of 12 Months
Guaranteed Fitment Always the correct parts
Shop with Confidence Your information is safe
In-House Experts We know our products

GM

When you order your Short Block (12556121) for your 1984-2000 vehicle from Parts for Sale Online, you can be assured you are getting the best parts on the Market. This Short Block, and all of the products featured on our site are genuine OEM backed by a 2 year limited warranty. If you have any questions please Contact Us.

Shop more GM parts by selecting your make below:

| Buick Models | Cadillac Models | Chevrolet Models | GMC Models |

| Hummer Models | Oldsmobile Models | Pontiac Models | Saturn Models |