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CL-0823-12656874-H14 2014-2021 Silverado Sierra 6.2 (1) Genuine GM Engine Piston 12656874
CL-0823-12656874-H14 2014-2021 Silverado Sierra 6.2 (1) Genuine GM Engine Piston 12656874
CL-0823-12656874-H14 2014-2021 Silverado Sierra 6.2 (1) Genuine GM Engine Piston 12656874
CL-0823-12656874-H14 2014-2021 Silverado Sierra 6.2 (1) Genuine GM Engine Piston 12656874
CL-0823-12656874-H14 2014-2021 Silverado Sierra 6.2 (1) Genuine GM Engine Piston 12656874
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2014-2021 Silverado Sierra 6.2 (1) Genuine GM Engine Piston

In stock
$ 43.40

2014-2021 Silverado Sierra 6.2 (1) Genuine GM Engine Piston

The price is for 1 Piston 

The Genuine GM Engine Piston 12656874 is specifically designed for 2014-2021 Silverado and Sierra vehicles equipped with a 6.2 engine. This piston is essential in the engine's internal combustion process, compressing the air-fuel mixture before ignition and then transferring the force from the combustion's expanding gases to the crankshaft. This OEM part comes straight from the manufacturer's packaging, ensuring it meets the high standards and quality synonymous with parts acquired from a new car dealership, setting it apart from aftermarket counterparts.

Installation Instructions

Tools Needed: - Socket set - Piston ring compressor - Rubber mallet - Engine hoist (if removing the engine)

1. Disconnect the vehicle battery to ensure safety during the process.

2. Using the engine hoist, carefully remove the engine from the vehicle, placing it on a secure platform or stand.

3. Remove the engine head to access the pistons inside the cylinder block.

4. Detach the connecting rod cap from the bottom of the intended piston using the socket set.

5. Push the piston gently from the bottom until it's free from the cylinder bore.

6. Before installing the new piston, ensure that the piston rings are correctly placed and secured using the piston ring compressor.

7. Carefully align the piston with the cylinder bore and gently tap its top using the rubber mallet, facilitating its descent into the bore until it's fully seated.

8. Reattach the connecting rod cap to the piston's bottom and secure it tightly.

9. Reinstall the engine head and ensure all components are reconnected and tightened securely.

10. Place the engine back into the vehicle using the engine hoist and ensure all connections, hoses, and wires are reattached.

11. Reconnect the vehicle battery and start the engine, checking for any abnormal sounds and ensuring the engine runs smoothly.

Time Required: Approximately 4-6 hours, depending on experience.

Skill Level: Expert

Vehicle Fitment

Year Make Model Engine
2014-2021 Silverado 6.2
2014-2021 Sierra 6.2
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Simply return your part in the exact same condition and packaging that you received it in within 30 days for a full refund of the purchase price of the part, minus the original shipping charges. You don't even have to contact us. Just be sure the read the requirements below and follow the instructions at the bottom of this page.



Any part that does not have all of the original packaging with the attached manufacturer part number label.

Believe it or not, this is super important! Don't throw away the packaging. Manufacturers won't accept returns on a part without the genuine OEM Packaging, so we won't be able to credit you. (Even if the part is brand new with no packaging, we would have to return it to you).


You have installed or attempted to install or disassemble the part
You have painted the part.
You have broken the part.
You have lost the original packaging.
You have gotten the part wet, or the part has greasy fingerprints.


Electrical parts can only be returned if they have not been installed, programmed, or plugged in. If the part shows signs, of an attempted install we will be unable to accept your return.

An electrical part is any part that plugs in, contains a switch, sensor, circuit board, or electrical wiring.


All Products are. covered by a 1-year Warranty.


Our Warranty Coverage

We will replace the parts free of charge for any reason not caused by collision or installation, other human intervention, incorrect application, modifications, use of the products outside the context of its normal, customary, and intended operating conditions (including without limitation, any form of commercial, fleet, rental or off-road use), or physical damage for 1 year and only for the vehicle in which the part was originally installed.

One Time replacement.

Warranty Covers only one replacement in the warranty period. Multiple Replacements are not covered, after one replacement warranty will no longer be in effect.

Warranty Is nontransferable and is only valid for the VIN number of the vehicle for which it was purchased. Warranty does not transfer to the new owner of the item purchased or the vehicle purchased with the item installed.

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