AUDI 6K103063CM Engine Motor Cylinder Head 2.0L 5TH

( Manufacturer Part Number: 6K103063CM ), ( Listed: Uv86 ), ( Type: Cylinder Head Assembly ), ( Oe/oem Part Number: 6k103063cm / 6k103063c / 6k1 030 63c M, 06k103403al / 06k103403 / 06k 103 403 Al, 06l103166k / 06l103166 / 06l 103 166 K )

Review AUDI 2.0l Engine Motor Cylinder Head Vin 5th Digit Oem fits QUATTRO Q3 2019–2025

The **Audi 6K103063CM (2019 2025) 2.0L TFSI Engine Cylinder Head (5th Generation)** is a precision-engineered component designed for the high-performance **Quattro 2.0L TFSI (Turbocharged Fuel Stratified Injection) powertrain**, found in Audi s mid-size SUVs and sedans, including the **Q3, A4, A5, and S5 models** during this production cycle. This cylinder head represents the latest iteration of Audi s **5th-generation TFSI architecture**, optimized for efficiency, power delivery, and reliability while adhering to stringent emissions standards. Crafted from **high-strength aluminum alloy (typically A356 or A357)**, the head is engineered with **computer-aided design (CAD) precision**, featuring **integrated intake and exhaust runners** that enhance airflow dynamics for improved throttle response and torque output. The **direct-injection system** is seamlessly integrated, with **high-pressure fuel injectors** strategically positioned to atomize fuel directly into the combustion chambers, ensuring optimal combustion efficiency and reduced fuel consumption.

A defining feature of this cylinder head is its **dual overhead camshaft (DOHC) design**, where each cylinder bank is driven by a **variable valve timing (VVT) system** specifically, Audi s **Multi-Air system** in earlier iterations and **variable valve lift (VVL) technology** in later models allowing for **adaptive valve timing and lift** to maximize performance across the RPM spectrum. The **intake valves** are typically **32mm in diameter**, while the **exhaust valves** measure **28mm**, with **titanium or sodium-filled exhaust valves** in some high-performance variants to withstand extreme heat and thermal cycling. The **combustion chambers** are meticulously shaped to promote **turbulent airflow**, improving combustion stability and reducing knock sensitivity, which is critical for the **2.0L turbocharged engine s** ability to produce **245 300 horsepower** (depending on the model variant) while maintaining **efficient fuel economy**.

For durability, the cylinder head incorporates **high-temperature-resistant coatings** on critical components, including the **valve seats, valve guides, and combustion chamber surfaces**, to mitigate wear and thermal stress. The **oil control rings (OCRs)** and **piston cooling jets** are integrated into the head design to prevent overheating and ensure consistent lubrication of the **piston-to-valve clearance**, a common failure point in turbocharged engines. Additionally, the **exhaust manifold** is often **integrated into the cylinder head casting**, reducing weight and improving thermal efficiency, while the **intake manifold** may feature **resonator chambers** to optimize airflow at different RPM bands. The **spark plug placement** is strategically positioned for **efficient ignition distribution**, with **NGK or Bosch high-energy plugs** (typically **IRIDIUM or PLATINUM-tipped**) recommended for optimal performance.

This cylinder head is also equipped with **Audi s advanced emissions control systems**, including **integrated catalytic converters** (in some configurations) and **EGR (Exhaust Gas Recirculation) ports** to meet **Euro 6d-TEMP or Euro 6d standards**, depending on the market. The **EGR cooler** and **coolant passages** are carefully routed to prevent **carbon buildup** and ensure proper thermal management. For performance enthusiasts, this cylinder head is often a **popular upgrade target**, as aftermarket tuners and manufacturers (such as **BORGWarner, Garrett, or Mahle**) offer **high-flow intake and exhaust components**, **stiffer valve springs**, and **reinforced valve guides** to push the engine beyond its stock limits while maintaining structural integrity.

When sourcing a replacement or upgrading this component, it is essential to verify **OEM compatibility**, as later-model **2022 2025 Q3 Quattro 2.0L engines** may incorporate **minor design refinements**, such as **updated valve cover gaskets, revised oil passages, or alternative cooling system integrations**. Always ensure the part is **direct-fit or cross-referenced with Audi s VIN-based service documentation** to avoid mismatches with **alternator, power steering, or cooling system components** that may be mounted adjacent to the cylinder head. Proper installation requires **torque specifications** (typically **25 30 Nm for the head bolts**, in sequence) and **sealing with Audi-approved gaskets** (such as **Fel-Pro or ATE**) to prevent leaks and ensure long-term reliability. Whether for a **routine replacement, performance modification, or engine rebuild**, this cylinder head exemplifies Audi s commitment to **precision engineering, efficiency, and high-performance durability** in its modern TFSI powertrains.

### **Pros and Cons of Buying Audi Part Number 6K103063CM (2019 2025 Q3 2.0L TFSI Engine Cylinder Head, 5th Generation)**

1. **OEM Quality and Reliability** Audi s cylinder heads are engineered to high standards, ensuring durability and proper sealing for the 2.0L TFSI engine. This part is designed to match the factory specifications, reducing the risk of leaks or performance issues when installed correctly.

2. **Compatibility with Turbocharged Engines** The 2.0L TFSI engine in the Q3 (and other Audi models) relies on precise cylinder head design for efficient turbocharging and power delivery. A genuine or high-quality aftermarket replacement ensures proper airflow and pressure management.

3. **Support for Quattro AWD System** The cylinder head is part of the engine s power delivery system, which directly impacts the Quattro all-wheel-drive performance. A well-functioning head ensures optimal power distribution and responsiveness.

4. **Easier Maintenance and Repairs** Unlike some older Audi engines, the 2.0L TFSI (especially in the 5th-gen Q3) benefits from improved engineering, making cylinder head replacements more straightforward compared to earlier models with known issues (e.g., 1.8T or 2.0 TDI problems).

5. **Potential for Improved Longevity** If the cylinder head failure is due to wear (e.g., valve seat wear, exhaust port erosion, or head gasket leaks), replacing it with a new or refurbished unit can extend the engine s lifespan, preventing catastrophic damage.

6. **Aftermarket Availability** While Audi s official parts are premium, reputable aftermarket suppliers (e.g., Fel-Pro, Bosch, or specialized Audi performance brands) offer competitive alternatives that meet or exceed OEM standards. This can reduce costs without sacrificing quality.

7. **Warranty and Recalls** If purchasing from Audi or an authorized dealer, the part may come with a warranty. Some cylinder head failures in these engines have been addressed via recalls (e.g., 2019 2020 models with certain intake manifold issues), so checking for open recalls is advisable.

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1. **High Cost** Audi parts, especially cylinder heads, are expensive. A new OEM cylinder head can cost **$1,500 $2,500 **, depending on labor and additional components (e.g., new gaskets, bolts, or valve springs). Aftermarket options may reduce costs but still require significant investment.

2. **Labor-Intensive Installation** Replacing a cylinder head requires disassembling the engine, removing the turbo, and performing precise machining (e.g., valve seat surfacing, head decking). This is a **multi-day job** for a professional mechanic, adding to the total cost.

3. **Potential for Hidden Issues** If the cylinder head failure is due to internal damage (e.g., cracked ports, warped surfaces, or exhaust valve leaks), simply replacing the head may not fully resolve the problem. A **full engine inspection** (including valves, springs, and guides) may be necessary, increasing expenses.

4. **Risk of Counterfeit Parts** Buying from untrusted suppliers (especially online) can result in **fake or low-quality cylinder heads**, leading to leaks, poor sealing, or premature failure. Always verify the seller s reputation and part authenticity.

5. **Compatibility with Modifications** If the engine has been modified (e.g., forced induction upgrades, custom camshafts, or tuning), a stock cylinder head may not handle the increased stress. In such cases, a **performance cylinder head** (e.g., from brands like **AEM, JE, or custom machined heads**) may be required, further increasing costs.

6. **Environmental and Safety Concerns** Cylinder head replacements involve handling **turbocharged systems, high-pressure fuel lines, and cooling systems**. Improper handling can lead to **engine damage, leaks, or even fires** if not done correctly.

7. **Depreciation Impact** For older Q3 models (2019 2021), the cost of major repairs like this can **reduce resale value**. Buyers should weigh whether the repair is worth it for a used vehicle, especially if the car is approaching 100,000 miles.

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Buying the **Audi 6K103063CM cylinder head (2019 2025 Q3 2.0L TFSI)** is a **necessary repair** if the original is failing (e.g., due to leaks, warping, or exhaust port erosion). The **pros** such as OEM reliability, compatibility with the turbocharged engine, and potential longevity improvements make it a sound investment for keeping the car running smoothly. However, the **high cost, labor intensity, and risk of hidden issues** mean it s not a decision to take lightly.

- **Getting multiple quotes** from reputable mechanics.

- **Checking for recalls** (Audi has addressed some cylinder head-related issues in these models).

- **Evaluating the engine s overall condition** if other components (e.g., turbo, injectors, or timing belt) are worn, a full engine rebuild may be more cost-effective.

- **Exploring aftermarket options** (e.g., **Bosch, Fel-Pro, or performance cylinder heads**) if budget is a concern, but ensure they meet Audi s specifications.

- **If the cylinder head is the sole issue and the rest of the engine is in good shape**, proceed with a **new or high-quality aftermarket replacement** from a trusted supplier.

- **If the engine has other wear (e.g., turbo, valves, or seals)**, consider a **full engine service or rebuild** to avoid recurring problems.

- **For used Q3 buyers**, factor in the repair cost when evaluating the car s value sometimes, it s cheaper to **buy a newer model** than to invest heavily in repairs.

- **Always use a certified Audi specialist** for installation to ensure proper sealing, torque specifications, and alignment with the turbo and cooling system.

A well-executed cylinder head replacement can **restore performance and reliability**, but it requires careful planning to avoid unnecessary expenses.

Details:

Are final sale. Items are sold in good, working condition and have been inspected prior to listing. 60-day return period begins on the day part is delivered. High quality pictures are provided for each item so you can see its exact condition.

All listed parts have already been removed from donor vehicles and are on the shelf ready to be shipped. Shipping charges are based on delivery zip code and apply to the lower 48 states. This MUST be specified AT TIME OF PURCHASE. Locations without a dock or forklift will incur lift gate fee.

Orders are shipped via USPS, UPS, or FedEx.

part #: 6k103063cm prices

• $138.86-$1188.99

specifications cylinderheapar:

• for models: Q3, Quattro
• for makes: Audi
• for years: 2019-2025
• mpn: 6k103063cm
• listed: Uv86
• type: Cylinder Head Assembly
• oe/oem part number: 6k103063cm / 6k103063c / 6k1 030 63c M, 06k103403al / 06k103403 / 06k 103 403 Al, 06l103166k / 06l103166 / 06l 103 166 K

seller cylinderheapar:

• # reviews: 74105
• rating: 100.0%
• city: Nicholasville, Kentucky

payments cylinderheapar:

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

offer cylinderheapar:

• best offers: True
• quantity: 1
• started: March 16, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0

returns cylinderheapar:

• time: 60 Days
• paid by: Buyer
• policy: Returns Accepted

shipping cylinderheapar:

• transit: 3-9 Days
• type: Fixed
• cost: $60.00
• class: Standard
• service: Standard

general cylinderheapar:

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

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