INFINITI 161025 Left Engine Motor Cylinder Head Q50 3.0L 72K LOT2724

( Manufacturer Part Number: 161025 ), ( Part Type: Engine Motor Cylinder Head ), ( Oe/oem Part Number: Oem )

Review INFINITI Q50 3.0l Left Engine Motor Cylinder Head 72k Oem Lot2724 fits 2016–2021

The **Infiniti Q50 (2016-2021) 3.0L V6 Engine Motor Cylinder Head (Part #161025, LOT#2724)** is a high-performance, factory-direct component designed to restore peak efficiency and reliability to the iconic twin-turbocharged V6 powerplant found in the Q50 s 3.0L engine family. Engineered by Infiniti s precision manufacturing team, this cylinder head is a critical assembly that houses the combustion chambers, intake and exhaust valves, and the spark plug wells, ensuring optimal airflow and thermal management for the twin-turbocharged V6 (VQ30VHR). Built to exacting specifications, it features a robust **aluminum alloy construction** with reinforced valve seats, precision-machined combustion chambers, and integrated **variable valve timing (VVT)** solenoids for the intake and exhaust camshafts, which enhance throttle response and fuel efficiency. The head is equipped with **four-valve-per-cylinder architecture**, allowing for improved scavenging and better scavenging of exhaust gases, which contributes to the engine s aggressive power delivery capable of producing **333 horsepower and 311 lb-ft of torque** in its standard form. This part is fully compatible with the **2016 2021 Infiniti Q50 (F53/F54 body styles)**, including both **3.0L V6 (VQ30VHR) models**, whether equipped with the **300-horsepower standard variant or the 333-horsepower performance-oriented trim**. The cylinder head is part of a **lot of 2724**, suggesting it has undergone rigorous quality control, including dimensional inspection, valve seat machining, and surface treatment to prevent corrosion and wear. Whether replacing a worn head due to overheating, valve train failure, or general wear, this component ensures seamless integration with the **turbocharged intake and exhaust manifolds**, **intercooler system**, and **fuel injection setup**, maintaining the Q50 s signature blend of sporty handling and refined luxury. Ideal for both **OEM replacement and performance upgrades**, this cylinder head is a must-have for enthusiasts seeking to restore or enhance the reliability and performance of their Q50 s powerplant.

### **Pros and Cons of Buying a 2016-2021 Infiniti Q50 3.0L (VQ30DE) with a Left Engine Motor Cylinder Head (Lot 2724)**

#### **Pros**

1. **Reliable Engine (VQ30DE)** The 3.0L VQ30DE is a well-regarded engine known for its durability, smooth operation, and strong performance. It is a naturally aspirated inline-six with a reputation for lasting well over 200,000 miles with proper maintenance.

2. **Good Handling and Driving Dynamics** The Q50 is a performance-oriented sedan with precise steering, responsive suspension, and a well-balanced ride. The 3.0L model offers a good mix of comfort and sportiness, making it enjoyable to drive.

3. **Infiniti s Build Quality** While not as refined as some luxury brands, Infiniti has improved its build quality in recent years. The Q50, especially in later model years (2018-2021), features solid construction, good interior materials, and a quiet cabin.

4. **AWD Capability (Available)** The Q50 offers an available all-wheel-drive system, which can be beneficial in adverse weather conditions, improving traction and stability.

5. **Moderate Maintenance Costs** Compared to some luxury brands, Infiniti parts and labor are generally more affordable. Routine maintenance (oil changes, timing belt, spark plugs) is reasonably priced.

6. **Resale Value** The Q50 holds its value better than many competitors in its class, especially the 3.0L variant, which is less expensive than the turbocharged 3.7L models.

7. **Left-Engine Motor (Lot 2724) Advantages**

- **Easier Access for Some Repairs** The left-engine configuration (driver s side) can make certain tasks (e.g., spark plug replacement, valve cover removal) slightly more accessible for DIYers.

- **Potential for Customization** Some enthusiasts prefer left-engine layouts for tuning or modifications, though this is rare for daily drivers.

8. **Infiniti s Warranty and Support** If the vehicle is still under warranty or has extended coverage, this can provide peace of mind. Infiniti dealerships are generally cooperative with service and repairs.

9. **Comfortable Interior** The Q50 offers a spacious, well-appointed cabin with good seating, a quiet interior, and modern infotainment (especially in later models with Apple CarPlay/Android Auto).

10. **Performance-Oriented Features** The 3.0L model comes with a 6-speed automatic transmission (or optional 7-speed in some trims) and offers a balanced power delivery, making it suitable for both daily driving and light spirited driving.

---

#### **Cons**

1. **Potential Cylinder Head Issues (Lot 2724)**

- The **Lot 2724 cylinder head** is known to have **warping or cracking** issues, particularly in the **left-engine (driver s side) configuration**. This can lead to:

- **Overheating** due to poor coolant flow.

- **Piston-to-valve contact** (knocking noise, catastrophic engine failure if not addressed).

- **Leaking coolant** from the head gasket or cylinder head itself.

- Excessive heat under the hood.

- Coolant leaks around the head or oil cap.

- Knocking or ticking noises at high RPM or under load.

- Check Engine Light (P0300-P0308 misfires, P0171-P0174 fuel trim issues).

- **Repair Costs**: Replacing a warped cylinder head or head gasket can range from **$1,500 to $3,500 **, depending on labor rates and whether the engine needs to be pulled.

- Ticking noise from the timing cover.

- Rough idle or misfires.

- Check Engine Light (P0016, P0017 timing chain tensioner issues).

- **Repair Cost**: Replacing the timing chain, tensioner, and guides can cost **$1,200 $2,500**.

3. **Transmission Issues (6-Speed Automatic)**

- Some owners report **rough shifting, delayed engagement, or slipping** in the 6-speed automatic.

- **Symptoms**: Jerky acceleration, delayed response when shifting, or the transmission staying in gear after turning off the engine.

- **Repair Cost**: Transmission rebuild or replacement can range from **$2,500 $4,500**.

4. **Oil Consumption** The VQ30DE is known to **burn oil**, especially in higher-mileage examples. Some drivers report consuming **1 quart every 1,000 2,000 miles**.

- **Symptoms**: Blue smoke from the exhaust, low oil levels between changes.

- **Solution**: Regular oil changes (synthetic blend or full synthetic) and monitoring oil levels.

5. **Infiniti s Dealer Network Limitations**

- Infiniti dealerships can be **less customer-friendly** than some luxury brands (e.g., BMW, Mercedes).

- Parts and service can sometimes be **slow or expensive** compared to independent shops.

- **Independent mechanics** may be more knowledgeable about VQ engines but could charge premium rates.

6. **Rear Seat Comfort** While adequate, the rear seats are **not as luxurious** as those in full luxury sedans (e.g., BMW 5 Series, Lexus GS). Legroom is decent, but shoulder room can feel tight for larger passengers.

7. **Infotainment System (Early Models)**

- The **2016 2017 models** have a **clunky, outdated infotainment system** with poor touchscreen responsiveness.

- **2018 models** improved with **Apple CarPlay/Android Auto**, but even these can be **slow or glitchy** compared to competitors.

- **Bluetooth connectivity** can also be unreliable in some units.

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

- The Q50 is not as rust-resistant as some Japanese sedans (e.g., Lexus). Owners in **snowy or salted-road areas** should inspect the **rocker panels, wheel wells, and undercarriage** for corrosion.

9. **Limited Aftermarket Support**

- While the VQ30DE is a popular engine, **aftermarket parts (e.g., performance chips, suspension upgrades)** are not as widely available as for BMW or Audi engines.

- **Tuning options** are limited compared to turbocharged Infiniti models (e.g., Q50 3.7T).

10. **Depreciation**

- While the Q50 holds value better than many competitors, it is **not a high-retainer value** like a Lexus or BMW. If you plan to sell later, depreciation will eat into your investment.

---

### **Key Considerations Before Buying**

1. **Verify the Cylinder Head Condition**

- **Get a pre-purchase inspection (PPI) from a VQ30DE specialist** (e.g., a shop experienced with Infiniti engines).

- Coolant leaks around the head gasket or head.

- Warping (use a straightedge to check the head surface).

- Knocking or ticking noises under load.

- Oil consumption history (ask for maintenance records).

- **If the head is warped or leaking**, the repair cost may not be justified unless you re prepared for a **$2,000 bill**.

2. **Transmission Health**

- **Test drive for smooth shifting** listen for grinding or hesitation.

- **Check for delayed engagement** when accelerating.

- **Review service records** for any transmission fluid changes.

3. **Oil Consumption**

- **Ask for oil change records** if the seller claims "no oil burning," verify with a **smoke test** (if possible) or check for blue exhaust smoke.

- **Budget for frequent oil top-ups** if the engine burns oil.

4. **Timing Chain Condition**

- **Listen for ticking from the timing cover** (especially at idle).

- **Check for misfires or rough idle** these can indicate chain stretch.

5. **Rust Inspection**

- **Check undercarriage, rocker panels, and wheel wells** for corrosion, especially if the car was driven in snowy or salted regions.

6. **Warranty and Extended Coverage**

- If the car is **under warranty or has extended coverage**, this can offset repair costs.

- **Infiniti s powertrain warranty** typically covers **5 years/60,000 miles** check if it s still active.

7. **Budget for Future Repairs**

- **Set aside $3,000 $5,000** for potential major repairs (c

Details:

Transmission: Automatic. Mileage: 72,472. This Is An OEM Left Cylinder Head For A 2016 2021 Infiniti Q50 Red Sport 4 item is in GOOD used condition. Exterior Color: Silver.

Interior Color: Black. Body Style: Sedan. Item# 149, Vehicle Info:Year: 2017. Brand: Infiniti.

Trim: Red Sport 400.

part #: 161025 prices

• $25.00-$229.00

specifications cylinderheapar:

• for makes: Infiniti
• for years: 2016-2021
• mpn: 161025
• part type: Engine Motor Cylinder Head
• oe/oem part number: Oem

seller cylinderheapar:

• # reviews: 3266
• rating: 99.3%
• city: High Point, North Carolina

payments cylinderheapar:

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

general cylinderheapar:

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

returns cylinderheapar:

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

offer cylinderheapar:

• started: May 12, 2026
• best offers: True
• options: Ship-to-home
• quantity: 1
• sold: 0
• availability: In Stock

shipping cylinderheapar:

• transit: 3-7 Days
• type: Fixed
• cost: $0.00
• service: FedEx Ground Economy
• carrier: FedEx
• class: Economy

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