MAZDA Cylinder Head Naturally Aspirated 2.5L 27K PYY4-10-SJ0 2021 2022

( Manufacturer Part Number: PYY410SJ0 ), ( Type: Cylinder Head Assembly ), ( Year: 2021, 2022, 2023 ), ( Manufacturer Warranty: 1 Month ), ( Oe/oem Part Number: Pyy410sj0, Pyy4-10-sj0 ), ( Items Included: Oem ), ( Material: Aluminum )

Review MAZDA 2.5l 27k Cylinder Head Naturally Aspirated Oem fits CX-5 2021–2023

The **Mazda PYY410SJ0 (2021 2023) 2.5L Naturally Aspirated Cylinder Head** is a precision-engineered component designed for the high-performance and reliability-focused **CX-5 2.5L Skyactiv-G engine**, representing Mazda s commitment to balanced power delivery, efficiency, and durability. This cylinder head, part of the **PYY4-10-SJ0** series, features a **four-valve, dual-overhead camshaft (DOHC) design** with **intake and exhaust valves** strategically positioned for optimal airflow and combustion efficiency. The **cast aluminum construction** ensures a lightweight yet robust structure, reducing inertia while maintaining structural integrity under high RPM and thermal loads. The **Skyactiv-G architecture** incorporates **shorter, wider valves** and a **shorter combustion chamber**, enhancing volumetric efficiency and reducing pumping losses for improved fuel economy without sacrificing performance. The **hydraulic valve lifters** eliminate the need for manual adjustment, ensuring smooth operation and minimizing wear over time. Additionally, the **integrated exhaust ports** are contoured to promote a **turbulent yet controlled airflow** into the combustion chamber, supporting a **leaner burn** and reducing emissions while maintaining robust power output. This cylinder head is compatible with the **2.5L Skyactiv-G engine** found in the **2021 2023 Mazda CX-5**, delivering **250 horsepower and 186 lb-ft of torque** with a **naturally aspirated** configuration, making it ideal for both daily driving and spirited performance. Whether used in a **restoration project, engine rebuild, or performance upgrade**, this cylinder head exemplifies Mazda s engineering philosophy **blending efficiency, responsiveness, and longevity** into a single, high-performance component.

### **Pros and Cons of Buying a 2021-2023 Mazda CX-5 (PYY410SJ0) 2.5L Naturally Aspirated (NA) Cylinder Head**

#### **Pros**

1. **Reliability and Durability**

The Mazda CX-5, particularly the 2.5L Skyactiv-G engine, is well-regarded for its robustness and longevity. Mazda s Skyactiv technology improves fuel efficiency and torque while maintaining durability. Many owners report minimal issues with the engine and transmission if maintained properly.

2. **Good Fuel Economy**

The naturally aspirated 2.5L engine offers decent fuel efficiency for its class, averaging around **20-22 MPG in the city and 28-30 MPG on the highway** (varies slightly by model year and transmission). This is competitive for a midsize SUV, especially compared to turbocharged alternatives.

3. **Smooth and Responsive Driving Experience**

The NA 2.5L engine provides a linear power delivery without the lag or stress of a turbocharged setup. The Skyactiv-G engine is known for its smooth operation, making it enjoyable for daily driving and highway cruising.

4. **Lower Maintenance Costs Compared to Turbocharged Engines**

Naturally aspirated engines typically require less frequent maintenance than turbocharged ones. There s no risk of turbo failure, intercooler issues, or carbon buildup on intake valves, which can be costly to address.

5. **Strong Resale Value**

Mazda holds its value well, and the CX-5 is one of the most reliable midsize SUVs on the market. A well-maintained 2021-2023 model should retain its value better than many competitors.

6. **Comfortable and Practical Interior**

The CX-5 offers a spacious cabin with good seating comfort, a user-friendly infotainment system (though some users find the touchscreen less intuitive than competitors), and ample cargo space (37.6 cu. ft. behind rear seats, 69.8 cu. ft. folded).

7. **Available AWD (Optional)**

The AWD version provides better traction in snow and wet conditions without the complexity or cost of a turbocharged engine. The part-time AWD system is reliable and easy to engage.

8. **Lower Risk of Engine Damage from Poor Fuel**

Turbocharged engines are more sensitive to low-quality fuel, which can cause carbon buildup and long-term damage. The NA 2.5L is less prone to these issues.

9. **Good Handling and Ride Quality**

Mazda s engineering gives the CX-5 a balanced ride comfortable over bumps but still responsive enough for spirited driving. The suspension tuning strikes a good balance between on-road comfort and off-road capability (for a midsize SUV).

10. **Warranty Coverage**

If purchased new or from a dealer with remaining warranty, the 2021-2023 CX-5 comes with a **5-year/60,000-mile basic warranty** and **10-year/100,000-mile powertrain warranty**, which provides peace of mind.

---

#### **Cons**

1. **Lower Power Output Compared to Turbocharged Alternatives**

The 2.5L NA engine produces **187 horsepower and 176 lb-ft of torque**, which is adequate but not as strong as turbocharged rivals (e.g., Ford EcoBoost, Toyota 2.5T, or Honda V6). This can make acceleration feel slightly sluggish, especially when towing or passing on highways.

2. **Slower Acceleration in Higher Trims**

While the base and Sport trims feel adequate, the **Turbo models (2.5T) or higher-trim CX-5s with AWD** offer better performance. If you prioritize quickness, a turbocharged version or a different SUV (e.g., Subaru Forester, Honda Pilot) might be more appealing.

3. **Less Powerful Than Some Competitors**

In the midsize SUV segment, rivals like the **Subaru Forester (2.5L NA), Honda Pilot (3.5L V6), or Toyota Highlander (2.5T)** offer more power or better towing capacity. The CX-5 s NA engine is fine but not the most exciting in its class.

4. **Infotainment System Limitations**

Mazda s **i-Connect infotainment system** is functional but lacks the polish of competitors like Apple CarPlay/Android Auto integration (available only on higher trims as an option). The touchscreen can feel dated compared to newer systems.

5. **Higher Trim Levels Can Be Expensive**

While the base and Sport trims are reasonably priced, higher trims (e.g., Touring, Signature) add up in cost, and some features (like wireless CarPlay/Android Auto) are optional rather than standard.

6. **Resale Value Not as High as Some Competitors**

While the CX-5 holds its value well, some rivals like the **Subaru Forester or Honda Pilot** may retain slightly more value due to stronger brand loyalty or perceived reliability in certain markets.

7. **Noisy Cabin at High Speeds**

Some owners report that the CX-5 can be slightly louder than competitors at highway speeds, though this is subjective and may not bother most drivers.

8. **Limited Off-Road Capability**

The CX-5 is not a true off-road SUV. While the AWD and available **Selectable Off-Road Mode** help, it lacks the ground clearance, approach/departure angles, and locking differentials of dedicated off-roaders like the Jeep Wrangler or Subaru Outback.

9. **Rear Seat Space Can Feel Tight for Tall Passengers**

While the CX-5 is spacious, rear legroom is adequate but not exceptional for taller passengers compared to some competitors (e.g., Toyota Highlander, Ford Edge).

10. **Potential for Higher Maintenance Costs Over Time**

While the engine is reliable, Mazda parts (especially for non-standard components) can be more expensive than those of more common brands like Toyota or Honda. Independent mechanics may charge premium rates for Mazda-specific work.

---

### **Conclusion**

The **2021-2023 Mazda CX-5 2.5L NA (PYY410SJ0)** is an excellent choice if you prioritize **reliability, fuel efficiency, and low maintenance costs** over raw power. It s a practical, comfortable, and well-built SUV that excels in daily driving and highway use. However, if you need **more power, better infotainment, or stronger off-road capability**, you may want to consider alternatives like the **Subaru Forester, Honda Pilot, or a turbocharged CX-5**.

For most buyers, the **pros outweigh the cons**, making this a solid mid-size SUV that offers a good balance of comfort, efficiency, and longevity. It s particularly well-suited for **urban commuters, families, or those who prefer a smooth, low-stress driving experience** without the complexity of a turbocharged engine.

---

### **Recommendation**

- You want a **reliable, fuel-efficient SUV** with minimal long-term maintenance concerns.

- You prefer **smooth, naturally aspirated power** over turbocharged performance.

- You prioritize **comfort, practicality, and good resale value**.

- You don t need extreme off-road or towing capabilities.

- You want **more power** (look at the **CX-5 Turbo or Subaru Forester 2.5T**).

- You need **better infotainment** (e.g., **Toyota Highlander, Honda Pilot with CarPlay/Android Auto**).

- You require **stronger off-road performance** (e.g., **Jeep Compass, Subaru Outback**).

- You plan to **tow frequently** (the CX-5 s max towing is **1,500 lbs**, which is decent but not exceptional).

**Final Verdict:** The **2021-2023 Mazda CX-5 2.5L NA is a fantastic choice for most buyers**, offering a perfect blend of reliability, comfort, and efficiency. It s one of the best midsize SUVs in its class for those who value a hassle-free ownership experience.

Details:

MILEAGE: 27,560. 2021 2023 MAZDA CX-5 2.5L 27K Cylinder Head Naturally Aspirated PYY4-10-SJ0 OEM. Weave OEM parts from a used vehicle. COLOR: BLACK PAINT CODE: 41W.

Might have Good condition or normal wear,maybe with scratches. We donor guarantee color matching on any parts. Model: 2023 MAZDA CX-5, Suva SELECT, 2.5L ALL Wheel Drive AWD, AUTOMATIC TRANSMISSION.

part #: pyy410sj0 prices

• $1068.44-$1316.31

specifications cylinderheapar:

• for models: Cx-5
• for makes: Mazda
• for years: 2021-2023
• mpn: Pyy410sj0
• type: Cylinder Head Assembly
• year: 2021, 2022, 2023
• manufacturer warranty: 1 Month
• oe/oem part number: Pyy410sj0, Pyy4-10-sj0
• items included: Oem
• material: Aluminum

seller cylinderheapar:

• rating: 99.9%
• # reviews: 1638
• city: Cleveland, Ohio

offer cylinderheapar:

• best offers: True
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• started: February 2, 2026
• sold: 0

returns cylinderheapar:

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

general cylinderheapar:

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

payments cylinderheapar:

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

shipping cylinderheapar:

• cost: $80.00
• type: Fixed
• class: Standard
• transit: 3-7 Days
• service: Standard

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