CHEVROLET 12576694 Rear Cylinder Head 3.5L

( Brand: Chevrolet ), ( Manufacturer Part Number: 12576694 ), ( Part Type: Cylinder Head ), ( Id: Ce4ebce5-d841-40c0-af3e-a6e3ffcff659 ), ( Interchange: 306-1901 ), ( Year: 2005 )

Review CHEVROLET Chevy New Rear Cylinder Head Assembly Oem 3.5l fits MALIBU 2004–2006

The **Chevrolet 12576694 OEM Rear Cylinder Head for the 2004 2006 3.5L V6 Engine (LS1/LS2 Family)** is a precision-engineered component designed to deliver optimal performance, reliability, and longevity for the iconic Chevrolet Malibu, as well as other applications within the LS platform, including the Pontiac G6, Saturn Aura, and Buick Regal. Crafted from high-quality cast iron, this cylinder head is meticulously machined to exacting specifications, ensuring proper sealing, cooling, and combustion efficiency. The head features a robust **four-valve-per-cylinder design**, with **intake and exhaust valves** strategically positioned for enhanced airflow and improved engine breathing, contributing to a smoother power delivery and better throttle response. The **LS1/LS2 family architecture** incorporates **hydraulic valve lifters**, eliminating the need for frequent valve adjustments, while the **pushrod-actuated rocker arms** ensure precise valve operation, reducing wear and maintaining optimal valve clearance over time. This cylinder head is equipped with **integrated spark plug bosses**, allowing for easy installation of standard NGK or Champion spark plugs, while the **exhaust ports** are optimized for efficient gas flow, helping to maximize horsepower and torque output. The **cooling passages** within the head are carefully engineered to prevent overheating, ensuring consistent performance even under demanding driving conditions. Whether replacing a worn or damaged head due to coolant leaks, warping, or internal failure, this **direct-fit OEM replacement** restores factory specifications, maintaining the engine s original power potential and fuel efficiency. Built to withstand the rigors of daily driving, high-performance applications, or even light modifications, this cylinder head is a critical component for restoring or maintaining the reliability of the 3.5L V6 in Chevrolet s mid-size sedans and related models. Proper installation, including the use of high-quality gaskets, torque specifications, and a thorough leak check, is essential to ensure long-term durability and peak performance.

### Pros and Cons of Buying a 2004-2006 Chevrolet Malibu Rear Cylinder Head (3.5L V6) with Part Number 12576694

1. **Direct OEM Fitment** This is an original equipment manufacturer (OEM) part, meaning it is designed specifically for your vehicle s make, model, and year. It will fit without modifications and should function as intended by Chevrolet.

2. **Reliability** OEM parts are built to the same standards as the parts that came with the car, ensuring durability and compatibility with the engine s internal systems. This reduces the risk of premature failure or performance issues.

3. **Warranty Coverage** If purchased from an authorized dealer or a reputable supplier, this part may still carry a limited warranty, providing peace of mind against defects in materials or workmanship.

4. **Performance Consistency** Since it is a genuine part, it will maintain the engine s intended performance, power output, and efficiency. Aftermarket parts may not always match these specifications.

5. **Ease of Installation** Being an OEM part, it is designed to integrate seamlessly with the existing engine components, reducing the likelihood of installation complications.

6. **Resale Value** If you ever decide to sell the car, having an OEM cylinder head ensures that potential buyers won t question the authenticity or quality of the part.

7. **Compatibility with Other OEM Components** Since it is designed for your specific vehicle, it will work harmoniously with other OEM parts like gaskets, bolts, and sensors, minimizing the risk of cross-contamination issues with aftermarket parts.

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1. **Higher Cost** OEM parts are typically more expensive than aftermarket alternatives. The price may be prohibitive depending on your budget, especially if you re looking to restore or repair an older vehicle.

2. **Limited Availability** While this part may still be available, OEM parts for older vehicles can become harder to source over time, particularly if the vehicle model is no longer in production. You may need to order it from a specialty supplier or a used parts dealer.

3. **Longer Lead Times** Even if the part is available, ordering it from a dealership or OEM supplier may result in longer wait times compared to aftermarket parts, which are often stocked and shipped quickly.

4. **Potential for Counterfeit Parts** When purchasing OEM parts from third-party sellers (e.g., online marketplaces), there is a risk of receiving counterfeit or refurbished parts that may not meet the original quality standards. Always verify the seller s reputation and authenticity.

5. **Overkill for Some Applications** If you re performing a minor repair or upgrade, an OEM cylinder head might be more expensive than necessary. In such cases, a high-quality aftermarket part could suffice without compromising performance or longevity.

6. **Weight and Size** OEM parts are often heavier and bulkier than aftermarket alternatives, which might not be a concern for most repairs but could be a minor consideration in space-constrained applications.

7. **Environmental Impact** OEM parts may contribute to higher production costs and environmental waste if they are not recycled properly. Aftermarket parts, while not always eco-friendly, often have a lower carbon footprint due to streamlined manufacturing processes.

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Buying an OEM rear cylinder head (part number 12576694) for your 2004-2006 Chevrolet Malibu s 3.5L V6 engine is a reliable choice if your priority is authenticity, performance consistency, and long-term durability. The part is designed to fit perfectly, ensuring compatibility with the rest of the engine and maintaining the vehicle s intended specifications. However, the higher cost and potential availability issues may make it less ideal for budget-conscious buyers or those looking for quick, cost-effective repairs.

If you re restoring the car to factory specifications or ensuring maximum reliability, the OEM part is the best option. For minor repairs or projects where cost is a major factor, a high-quality aftermarket alternative (from a reputable brand like Fel-Pro, Crane, or Melling) could offer a more affordable solution without sacrificing performance.

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1. **Verify the Part s Availability** Before purchasing, confirm that the part is in stock with a trusted supplier (e.g., RockAuto, PartsGeek, or a local Chevrolet dealer). Check for lead times and pricing to ensure it aligns with your project timeline and budget.

2. **Compare Prices** If possible, compare the OEM part s price with aftermarket alternatives. Look for reviews or warranties on aftermarket parts to ensure they meet your quality expectations.

3. **Purchase from a Reputable Source** If buying from an online retailer, choose a seller with positive reviews and a return policy. For maximum assurance, consider purchasing directly from an authorized dealer or a parts supplier with a history of selling genuine OEM components.

4. **Consider Professional Installation** Given the complexity of cylinder head work (e.g., sealing, gasket replacement, and torque specifications), it may be worth having the part installed by a mechanic experienced with Chevrolet engines. This ensures proper alignment, sealing, and avoidance of common mistakes like overtightening bolts.

5. **Inspect the Part Upon Arrival** When the part arrives, visually inspect it for damage, corrosion, or signs of wear. If it appears used or damaged, request a replacement or refund.

6. **Budget for Additional Components** Beyond the cylinder head, you may need new gaskets, bolts, seals, and possibly a torque wrench to ensure a proper installation. Factor these costs into your overall budget.

**Final Verdict:** If you value OEM quality and are willing to pay the premium for a part that guarantees compatibility and performance, the 2004-2006 Chevrolet Malibu rear cylinder head (part number 12576694) is a solid choice. However, weigh the cost against your project s needs and explore aftermarket options if budget is a constraint. Always prioritize quality over price to avoid costly engine issues down the line.

Details:

Search for more parts CHEVY MALIBU. Cylinder Head. MALIBU 06 3.5L. SATURN RELAY 06 3.5L.

part #: 12576694 prices

• $75.00-$391.88

specifications cylinderheapar:

• for models: Malibu
• for makes: Chevy, Chevrolet
• for years: 2004-2006
• brand: Chevrolet
• mpn: 12576694
• part type: Cylinder Head
• id: Ce4ebce5-d841-40c0-af3e-a6e3ffcff659
• interchange: 306-1901
• year: 2005

shipping cylinderheapar:

• transit: 2-7 Days
• type: Fixed
• cost: $0.00
• class: Standard
• service: Standard

offer cylinderheapar:

• started: February 11, 2026
• sold: 0
• quantity: 1
• best offers: True
• availability: In Stock
• options: Ship-to-home

payments cylinderheapar:

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

seller cylinderheapar:

• rating: 99.3%
• city: Brush, Colorado
• # reviews: 14269

returns cylinderheapar:

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

general cylinderheapar:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads

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