GM GENUINE PARTS 12586531 Afm Camshaft Lmg Iv 5436 5.3 LC9 Gen

( Brand: Gm Genuine Parts ), ( Manufacturer Part Number: 12586531 ), ( Type: Camshaft ), ( Items Included: Bolt ), ( Material: Steel )

Review GM GENUINE PARTS Oem 5.3 Afm Camshaft Lc9 Lmg Gen Iv fits SILVERADO SIERRA TAHOE YUKON

Introducing the GM 12586531 5436 5.3 AFM Camshaft, an essential component for LC9, LMG engines found in select Silverado, Sierra, Tahoe, and Yukon models from the Gen IV series. This part is designed to provide optimal engine performance and reliability.

This camshaft is engineered using Advanced Fuel Management (AFM) technology. AFM is a system that utilizes a secondary intake runner and a secondary injector to improve fuel efficiency and combustion efficiency. The AFM camshaft enables the engine to switch between conventional and AFM operation based on engine load and RPM.

The 5.3-liter camshaft is manufactured with precision to ensure accurate valve timing and duration. This component is made of durable materials, capable of withstanding the rigors of daily driving and harsh conditions. Its precise design and construction contribute to improved engine response, increased power, and enhanced fuel economy.

This particular GM part includes the camshaft, camshaft position sensor, and camshaft phaser. The camshaft position sensor monitors the position of the camshaft relative to the crankshaft, while the camshaft phaser adjusts the timing of the intake and exhaust valves based on engine temperature and load.

Installing this genuine GM camshaft is a straightforward process. It is recommended to follow the instructions provided in your vehicle's service manual or consult with a professional mechanic to ensure proper installation. Using a high-quality camshaft, such as the GM 12586531 5436 5.3 AFM Camshaft, can lead to improved engine performance and increased longevity.

In summary, the GM 12586531 5436 5.3 AFM Camshaft is a crucial upgrade for LC9, LMG engines found in Gen IV Silverado, Sierra, Tahoe, and Yukon models. Its Advanced Fuel Management technology and precise design contribute to improved engine performance, increased power, and enhanced fuel economy. This genuine GM part includes the camshaft, camshaft position sensor, and camshaft phaser, ensuring a complete and effective solution for your vehicle.

Pros and Cons of Buying a GM 12586531 5436 5.3 AFM Camshaft for LC9 LMG Engines in Silverado, Sierra, Tahoe, and Yukon

The GM 12586531 5436 5.3 AFM Camshaft is a performance part designed for the LC9 LMG engines used in various models such as Silverado, Sierra, Tahoe, and Yukon. This camshaft is intended to improve engine performance, but like any aftermarket part, it comes with its advantages and disadvantages. In this article, we will discuss both the pros and cons of investing in this specific camshaft.

1. Increased Horsepower and Torque: The primary reason for installing a performance camshaft is to enhance engine power. This GM camshaft is known to deliver noticeable improvements in horsepower and torque, resulting in better acceleration and overall performance.

2. Improved Throttle Response: The camshaft's design leads to better throttle response, making the engine more responsive to driver inputs. This can result in a more enjoyable driving experience.

3. Customizable: This camshaft is an aftermarket part, meaning it can be used to fine-tune the engine to individual preferences. For those who want a more aggressive driving style or increased performance, this camshaft offers the flexibility to achieve those goals.

4. Durability: The GM 12586531 5436 5.3 AFM Camshaft is made from high-quality materials, ensuring it can withstand the rigors of daily driving and the demands of high-performance applications.

1. Installation Complexity: Installing a performance camshaft can be a complex process, requiring specialized tools and knowledge. This can result in increased labor costs and potential for errors during the installation process.

2. Increased Fuel Consumption: Due to the increased power output, the engine may consume more fuel, which can lead to higher operating costs.

3. Potential Engine Noise: Performance camshafts can result in increased engine noise, which some drivers may find unpleasant or intrusive.

4. Potential Emissions Increase: The increased power output may lead to an increase in exhaust emissions, which could potentially result in failed emissions inspections or fines.

The GM 12586531 5436 5.3 AFM Camshaft offers several advantages, including increased horsepower and torque, improved throttle response, and customizability. However, it also comes with some disadvantages, such as installation complexity, increased fuel consumption, potential engine noise, and increased exhaust emissions. Ultimately, the decision to invest in this camshaft depends on an individual's priorities and preferences. If the desire for increased performance outweighs the potential downsides, then this camshaft could be a worthwhile investment.

1. Consult with a professional mechanic or engine tuner to ensure the installation process is carried out correctly and safely.

2. Evaluate the potential impact on fuel consumption and consider the long-term costs associated with increased fuel usage.

3. Be prepared for increased engine noise and consider whether this is an acceptable trade-off for the increased performance.

4. Consider the potential impact on emissions and ensure the vehicle will still pass emissions inspections or regulations in your area.

Overall, the GM 12586531 5436 5.3 AFM Camshaft can be a valuable investment for those seeking increased performance from their LC9 LMG engine in Silverado, Sierra, Tahoe, or Yukon models. However, it is essential to carefully weigh the advantages and disadvantages and make an informed decision based on individual priorities and circumstances.

Details:

This is a used engine component, so cosmetic wear should be expected. See photos for the stamp verification. The camshaft is stamped 5436, which corresponds to GM part number 12586531. Feel free to message with any questions OEM GM 5.3 AFM Camshaft Part #12586531 Stamped 5436.

This is the factory Active Fuel Management AFM camshaft, not an aftermarket replacement.

part #: 12586531 prices

• $52.71-$315.00

specifications cashalif:

• for models: Silverado, Sierra, Tahoe, Yukon
• brand: Gm Genuine Parts
• mpn: 12586531
• type: Camshaft
• items included: Bolt
• material: Steel

general cashalif:

• condition: Used
• Engines Engine Parts > Valvetrain Components > Camshafts

offer cashalif:

• quantity: 1
• started: March 7, 2026
• best offers: True
• sold: 0
• options: Ship-to-home
• availability: In Stock

payments cashalif:

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

shipping cashalif:

• transit: 4-9 Days
• type: Calculated
• cost: $8.65
• carrier: USPS
• service: USPS Ground Advantage
• class: Standard

seller cashalif:

• # reviews: 10
• city: Murfreesboro, Tennessee
• rating: 100.0%

returns cashalif:

• policy: No Returns

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