SUBARU 306-10242 Left Driver Cylinder Head

( Manufacturer Part Number: 306-10242 ), ( Part : 306-l ), ( Items Included: Oem ), ( Material: Aluminum, Cast Iron ), ( Type: Cylinder Head ), ( Stock : Pk004 ), ( Manufacturer Warranty: 1 Month )

Review SUBARU Left Driver Side Cylinder Head Without Oem fits FORESTER TURBO 2012–2013

The **Subaru 306-10242 Cylinder Head (Turbo, Left Driver Side, 2012-2013 Forester)** is a precision-engineered component designed to deliver optimal performance and reliability for the high-revving, turbocharged FA20 engine found in Subaru s 2012 and 2013 Forester models. Crafted from high-grade cast aluminum, this cylinder head is meticulously machined to ensure perfect sealing and efficient heat dissipation, critical factors for maintaining peak engine performance under demanding conditions. The head features a robust **four-valve per cylinder design**, with precision-milled intake and exhaust ports optimized for improved airflow and turbocharged efficiency. The **left driver-side head** is specifically engineered to accommodate the turbocharged FA20 s aggressive power delivery, incorporating reinforced valve seats, high-flow valves, and a durable **intake manifold mount surface** to prevent warping or distortion under high thermal loads. The head is also equipped with **Subaru s signature dual overhead camshaft (DOHC) system**, allowing for precise valve timing control that enhances both power output and fuel efficiency. Whether used in a stock build, a tuned application, or a restoration project, this cylinder head is built to withstand the stresses of forced induction while ensuring smooth operation and longevity. Its compatibility with the 2012-2013 Forester s turbocharged engine lineup makes it an essential replacement for those seeking to restore performance, address leaks, or upgrade their vehicle s power output.

### **Pros and Cons of Buying a 2012-2013 Subaru Forester with a Left-Driver Cylinder Head Turbo (206-10242)**

#### **Pros**

1. **Reliability of the Base Engine (FB25)**

- The naturally aspirated 2.5L FB25 engine in the 2012-2013 Forester is known for its durability, especially when maintained properly. Many examples easily exceed 200,000 miles with basic upkeep.

- The turbocharged version (206-10242) is a more recent addition (introduced in 2012) and benefits from Subaru s experience with turbocharging in later models (e.g., WRX, Outback). The FA24 turbo engine is generally robust if built correctly.

2. **AWD Standard**

- Subaru s Symmetrical All-Wheel Drive is a major advantage in snow, mud, or off-road conditions, making the Forester a practical choice for drivers who need year-round capability.

3. **Good Safety Ratings**

- The 2012-2013 Forester received strong safety ratings from the NHTSA and IIHS, including standard stability control, multiple airbags, and a sturdy frame. Later models (post-2014) improved safety further, but these years are still well-equipped.

4. **Fuel Efficiency (Compared to V6 Alternatives)**

- The turbocharged 2.5L (FA24) offers better fuel economy than the older 2.5L naturally aspirated (FB25) or the 3.6L V6, making it a more efficient choice for daily driving without sacrificing power.

5. **Turbocharged Performance**

- The FA24 turbo engine produces **170 hp and 176 lb-ft of torque**, which is a noticeable improvement over the naturally aspirated FB25 (165 hp, 166 lb-ft). This makes the turbo model more engaging for city driving and highway passing.

- The turbocharged version also benefits from a revised exhaust system and slightly better throttle response.

6. **Lower Cost Than Newer Models**

- Compared to a new or even a 2020 Forester, the 2012-2013 turbo model is significantly cheaper, offering better value for the money.

- Parts and labor costs are also lower than on newer Subarus, though turbo-specific components (like wastegates, intercoolers, and fuel injectors) may wear out over time.

7. **Mod Potential**

- The FA24 turbo engine is a popular platform for tuning, with aftermarket support for cold air intakes, exhaust upgrades, and even forced induction (turbo or supercharger) builds.

- The turbocharged version is more appealing to enthusiasts who want a performance-oriented Subaru without the complexity of a later FA24 (e.g., 2015 models with direct injection).

8. **Decent Interior for the Price**

- The 2012-2013 Forester comes with a **7-inch touchscreen (2012) or 7-inch touchscreen with Bluetooth (2013)**, power-adjustable seats, heated front seats (higher trims), and a decent infotainment system for its time.

- While not as advanced as modern Foresters, it s functional and comfortable for daily use.

9. **Resale Value (Compared to Older Naturally Aspirated Models)**

- The turbocharged version holds its value slightly better than the older FB25 naturally aspirated models, as it represents a more modern upgrade.

---

#### **Cons**

1. **Turbo-Specific Reliability Concerns**

- **Oil consumption** Some owners report increased oil burn, which can lead to low oil levels if not monitored. This is more common in high-mileage examples.

- **Turbocharger failure** The stock turbo may wear out around **100,000 150,000 miles**, especially if the car was driven aggressively or maintained poorly. Replacement costs **$1,500 $2,500** installed.

- **Fuel injectors** Some FA24 engines develop **fouled or leaking injectors**, leading to rough idling, misfires, or poor performance. Replacement injectors can cost **$500 $1,200**.

- **Wastegate failure** The stock wastegate can wear out, causing turbo spool issues. Replacement is **$300 $800**.

- **Intercooler leaks** The stock intercooler can develop cracks or leaks, leading to power loss and poor efficiency. Replacement is **$500 $1,000**.

- **Solution:** Always check maintenance records for turbo-related services (oil changes, turbo inspections) and consider a **pre-purchase inspection (PPI)** focusing on these components.

2. **Higher Maintenance Costs Than Naturally Aspirated FB25**

- The turbocharged version requires **more frequent oil changes (every 5,000 7,500 miles)** to prevent sludge and turbo damage.

- **Timing belt and water pump replacement** (every **105,000 miles**) is critical skipping this can lead to catastrophic engine failure.

- **Cooling system issues** Some FA24 engines have had **thermostat or radiator problems**, leading to overheating. The cooling system should be flushed every **5 years or 60,000 miles**.

3. **Infotainment Limitations**

- The **2012 model** has a **basic 7-inch touchscreen with no Apple CarPlay or Android Auto** (introduced in 2014). While functional, it s outdated compared to modern Foresters.

- **No backup camera** (standard in 2014 models), which can be a safety concern in tight parking spots.

4. **Rust Concerns (Especially in Snowy Regions)**

- Subarus are notorious for **rust**, particularly in the **wheel wells, rocker panels, and subframe**. A thorough inspection of the undercarriage is **essential**.

- The **2012-2013 models** had some improvements over older Foresters, but rust can still be an issue if the car was driven in harsh conditions.

5. **Transmission Issues (CVT in Some Markets)**

- The **2012 Forester** was available with a **5-speed manual or a CVT** (in some markets). The **CVT can be less reliable** than the manual, with reports of **jerking, overheating, or failure** over time.

- **Solution:** If buying a CVT, check for **fluid leaks, strange shifting, or overheating** before purchasing.

6. **Less Power Than Later FA24 Models**

- The **2012-2013 turbo Forester** produces **170 hp**, which is **10 hp less** than the **2014 FA24** (which also introduced **direct injection** for better efficiency).

- Later models also had **improved turbochargers and intercoolers**, making them slightly more refined.

7. **Depreciation**

- While cheaper than new, the **2012-2013 Forester has already depreciated significantly**. If you plan to keep it long-term, the resale value may not recover much.

8. **Left-Hand Drive (LHD) Specific Considerations**

- If you're in a **right-hand drive (RHD) market**, an LHD Forester may be harder to sell later, increasing long-term holding costs.

- **Import duties and insurance** may be higher in some countries.

---

### **Ending Conclusion**

The **2012-2013 Subaru Forester with the FA24 turbo engine (206-10242)** is a **solid choice for buyers who want a balance of performance, reliability, and practicality** but **only if purchased and maintained correctly**. It offers **better fuel efficiency and power than the naturally aspirated FB25**, while still benefiting from Subaru s AWD system and decent safety features.

- Drivers who want a **turbocharged Subaru** without the complexity of later FA24 models (e.g., direct injection issues).

- Those who **enjoy modding potential** and don t mind occasional maintenance checks.

- Buyers in **snowy or rough-terrain regions** who value AWD.

- Those who **prefer a manual transmission** (if available) over a CVT.

- Buyers who **prioritize low maintenance** turbo engines require more attention than naturally aspirated ones.

- Those who **don t want to deal with potential turbo/fuel injector issues** down the road.

- People in **rust-prone areas** who won t inspect the undercarriage thoroughly.

- Buyers who **need the latest tech** (

Details:

You might need to get the item repaired, sanded, primed and/or painted. Also fits: FORESTER 12-13 w/o Turbo; L. Model: SUBARU FORESTER. PLEASE SEE ALL PICTURES: Unless stated otherwise all our body parts are used and may have some damage, scuff sand scratches.

All damage is shown in pictures. Paint color may be different then what it appears in photos. Also, make sure to compare this item with yours before buying as well please do your research will fit vehicle. Its a real easy process.

part #: 30610242 prices

• $75.00-$263.68

specifications cylinderheapar:

• for models: Turbo, Forester
• for makes: Subaru
• for years: 2012-2013
• mpn: 306-10242
• part : 306-l
• items included: Oem
• material: Aluminum, Cast Iron
• type: Cylinder Head
• stock : Pk004
• manufacturer warranty: 1 Month

seller cylinderheapar:

• rating: 99.4%
• # reviews: 1186
• city: Winston-Salem, North Carolina

shipping cylinderheapar:

• type: Fixed
• service: UPS Ground
• transit: 5-8 Days
• class: Standard
• cost: $0.00
• carrier: UPS

payments cylinderheapar:

• wallet: Apple-pay
• credit card: Diners-club
• other

returns cylinderheapar:

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

offer cylinderheapar:

• quantity: 1
• availability: In Stock
• started: June 4, 2026
• sold: 0
• best offers: True
• options: Ship-to-home

general cylinderheapar:

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

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