INA 55563957 Sonic Trax Rocker Arms Lifters Incomplete 1.4L

( Brand: Ina ), ( Manufacturer Part Number: 55563957 ), ( Type: Rocker Arm And Lash Adjuster Set ), ( Oe/oem Part Number: 12656486 ), ( Material: Steel ), ( Vintage Part: No ), ( Country Of Origin: Germany )

Review INA Chevrolet Sonic Trax 1.4l Rocker Arms And Lifters Incomplete fits CRUZE 2011–2022

The 2011-2012 Chevrolet Cruze Sonic Trax 1.4L Rocker Arms and Lifters are essential components of the engine's valvetrain system. These parts are located at the top of the engine cylinders and are responsible for transferring the reciprocating motion of the pistons to the intake and exhaust valves.

The rocker arms are basically lever arms that convert the linear motion of the pushrods into the rotational motion needed to open and close the engine valves. They are mounted on the top of the cylinder head and connected to the lifters and pushrods.

The lifters, also known as hydraulic lifters, are designed to reduce the engine's noise and wear by using hydraulic oil pressure to automatically adjust the valve clearances as the engine runs. These incomplete lifters, with the part number 55563957, are designed specifically for the 1.4L engine found in the Chevrolet Cruze Sonic Trax.

Each rocker arm kit includes six rocker arms, six lifters, and all necessary hardware for installation. However, it's important to note that this kit does not include the pushrods, which must be purchased separately if they are not already in good condition.

The rocker arms and lifters are critical to the proper functioning of the engine and should be inspected and replaced if they show signs of wear, such as excessive noise, rough idling, or poor performance. Installing new rocker arms and lifters can help improve engine efficiency, reduce noise levels, and extend the engine's lifespan.

It's recommended that these parts are replaced as part of a routine maintenance schedule or when performing a larger engine overhaul. Installing new rocker arms and lifters can be a complex job and may require specialized tools and knowledge, so it's recommended that the installation is performed by a certified mechanic or engine builder.

In summary, the 2011-2012 Chevrolet Cruze Sonic Trax 1.4L Rocker Arms and Lifters (part number 55563957) are essential components of the engine's valvetrain system. They transfer the reciprocating motion of the pistons to the intake and exhaust valves, and the hydraulic lifters automatically adjust the valve clearances for smooth engine operation. These incomplete parts include six rocker arms and six lifters, but do not include the pushrods, which must be purchased separately. These parts should be inspected and replaced if they show signs of wear, and their installation is recommended to be performed by a certified mechanic or engine builder.

Buying aftermarket rocker arms and lifters for a 2011-2012 Chevrolet Cruze Sonic with the 1.4L engine and incomplete rocker arm setup comes with its own set of advantages and disadvantages. Here's a breakdown of each:

1. Cost-effective: Aftermarket rocker arms and lifters are generally less expensive than their OEM counterparts. This can be an attractive option for those looking to save money on repairs.

2. Performance: Aftermarket parts can sometimes offer better performance than OEM parts. This may be due to improved materials, design, or manufacturing processes.

3. Availability: Aftermarket parts are often more readily available than OEM parts, especially for older or less common vehicles. This can save time and hassle when trying to source the necessary components for a repair.

1. Quality concerns: Aftermarket parts may not always meet the same quality standards as OEM parts. This can lead to issues with fit, function, or durability.

2. Compatibility: It's important to ensure that the aftermarket rocker arms and lifters are compatible with the specific model and engine of the Cruze Sonic. Incomplete kits may require additional parts or modifications to function correctly.

3. Warranty: OEM parts typically come with a manufacturer's warranty, while aftermarket parts may not. This can leave the consumer without recourse if the parts fail or cause further damage.

Considering the pros and cons, buying aftermarket rocker arms and lifters for a 2011-2012 Chevrolet Cruze Sonic with the 1.4L engine and incomplete rocker arm setup can be a viable option for those seeking cost savings and potential performance gains. However, it's crucial to thoroughly research and verify the compatibility, quality, and warranty of the aftermarket parts before making a purchase.

If you decide to go with aftermarket rocker arms and lifters for your Cruze Sonic, be sure to source them from a reputable supplier with a good track record for quality and compatibility. Make sure to read reviews and consult with knowledgeable mechanics or automotive forums to ensure that the parts will meet your needs and expectations.

Details:

Parts are in original factory tray packaging as shown. Condition: NOS. 2011 2022 Chevrolet Cruze Sonic Trax 1.4L INA Rocker Arms and Lifters. These are the factory-correct components for 1.4L Exotic Turbo engine.

Genuine INA OEM GM valve train components featuring the Clamor-Y anti-friction coating. New and unused. This lot includes 11 roller rocker arms GM 12656486 and 16 hydraulic lash adjusters. Item comes ONLY with what is pictured, NO other materials available.

Note: A full engine set requires 16 rockers; this lot contains 11.

specifications rockeareng:

• for models: Cruze
• for makes: Chevrolet
• for years: 2011-2022
• brand: Ina
• mpn: 55563957
• type: Rocker Arm And Lash Adjuster Set
• oe/oem part number: 12656486
• material: Steel
• vintage part: No
• country of origin: Germany

general rockeareng:

• Engines Engine Parts > Valvetrain Components > Rocker Arms Parts
• condition: New other see details

payments rockeareng:

• wallet: Google-pay
• credit card: Visa
• other

offer rockeareng:

• sold: 0
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• started: February 27, 2026

seller rockeareng:

• # reviews: 16739
• city: Athens, Georgia
• rating: 99.3%

shipping rockeareng:

• service: Economy, USPS Priority Mail, UPS Next Day Air Saver, UPS 2nd Day Air
• class: Economy, Expedited, One-day
• transit: 4-8 Days
• cost: $0.00
• carrier: USPS, UPS
• type: Fixed

returns rockeareng:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

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