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Pontiac 12646457 Piston Kit

2006-2010 Pontiac

Customer Questions & Expert Answers (3)
GM 12646457 Piston Kit
  • Part Description
    PISTON KIT, Engine Piston
  • Replaces
    89018112, 12608531, 12631102, 19180835
  • Manufacturer
    General Motors
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  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine Pontiac
    Manufacturer Part Number12646457
    Part DescriptionPISTON KIT, Engine Piston
    Other NamesPiston, Pistons
    Item Dimensions5.9 x 5.4 x 2.9 inches
    Item Weight0.90 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces89018112, 12608531, 12631102, 19180835
    ManufacturerGeneral Motors
    SKU12646457
    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
    2007-2008 Pontiac G54 Cyl 2.4L2 DOOR, 4 DOOR, GT 2 DOOR, GT 4 DOOR, LS 2 DOOR, LS 4 DOOR, SPORT 2 DOOR, SPORT 4 DOOR
    2006-2010 Pontiac G64 Cyl 2.4LGT 2 DOOR CONVERTIBLE, GT 2 DOOR NOTCHBACK, GT 4 DOOR NOTCHBACK, GTP 2 DOOR CONVERTIBL, GTP 2 DOOR NOTCHBACK, GXP 2 DOOR NOTCHBACK, GXP 4 DOOR NOTCHBACK, SE 4 DOOR NOTCHBACK, SE1 2 DOOR NOTCHBACK, SE1 4 DOOR NOTCHBACK
    2006 Pontiac Pursuit4 Cyl 2.4L2 DOOR, 4 DOOR, LEVEL 4 PERFORMANCE/SC (SS) 2 DOOR, LEVEL ONE (LS) 2 DOOR, LEVEL ONE (LS) 4 DOOR, LEVEL THREE (SS) 2 DOOR, LEVEL THREE (SS) 4 DOOR, LEVEL TWO (LT) 2 DOOR, LEVEL TWO (LT) 4 DOOR
    2006-2010 Pontiac Solstice4 Cyl 2.4L2 DOOR CONVERTIBLE, 2 DOOR COUPE(TARGA), TURBO 2 DOOR CONVERTIBLE
  • 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 12646457 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove and reassemble piston/connecting rod assemblies in an engine? Posted by Customer
    A:
    Prior to removing the piston/connecting rod assemblies, check for ridges formed at the upper limit of ring travel and remove them if necessary. Turn the engine so the crankshaft is facing up. Check the connecting rod endplay with feeler gauges and consult an automotive machine shop if necessary. Mark the connecting rods and caps for identification. Remove the connecting rod cap bolts and the number one connecting rod cap and bearing insert. Push the connecting rod/piston assembly out through the top of the engine. Repeat this procedure for the remaining cylinders. Reassemble the connecting rod caps and bearing inserts and install the cap bolts finger tight. Check the piston ring end gaps and adjust if necessary. Install the rings on the pistons, starting with the oil control ring. Check that the upper and lower side rails can rotate smoothly. Install the number two and number one rings. Repeat this procedure for the remaining pistons and rings. Clean the cylinder walls, chamfer the top edge of each cylinder bore, and ensure the crankshaft is in place. Clean the bearing surfaces of the connecting rod and cap. Lubricate the piston and rings and use a piston ring compressor to compress the rings. Rotate the crankshaft and apply oil to the cylinder walls. Insert the piston/connecting rod assembly into the cylinder bore. Check the connecting rod bearing oil clearance using Plastigage. Clean the bearing faces and apply grease or engine assembly lube. Slide the connecting rod back into place, install the rod cap, and tighten the bolts. Repeat this procedure for the remaining pistons/connecting rods. Rotate the crankshaft to check for any binding and check the connecting rod endplay.
    Posted by GMPartsGiant Specialist
    Q:
    Are .010 or .020 over pistons available? Posted by Customer: 2010 Chevrolet Equinox
    A:
    12646457 PISTON KIT, ENG
    Posted by GMPartsGiant Specialist 10/11/2021
    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 12646457, the Right Choice

To ensure reliability, purchase GM part # 12646457 Piston Kit. It is sometimes referred to as Pontiac Piston. 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 Pontiac G5, G6, Pursuit models.

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