MAZDA 303.MZ1222 Engine Crankshaft Crank Shaft 2.5

( Model: CX-5 ), ( Part Type: Engine Crankshaft Crank Shaft ), ( Conditions Options: 4, 2.5, At, Awd ), ( Genuine Oem: Yes ), ( Ipn: 303.mz1222 ), ( Year: 2022 ), ( Manufacturer Warranty: 60 Day )

Review MAZDA Engine Crankshaft Crank Shaft 2.5 fits CX-5 303 2020–2023

The **Mazda 303.MZ1222 CX-5 2.5L Engine Crankshaft** is a precision-engineered component designed to deliver uncompromising performance, durability, and reliability for Mazda s iconic 2.5-liter Skyactiv-G inline-four engine, found in models spanning from 2020 through 2023. Crafted from high-grade forged steel, this crankshaft is meticulously balanced and machined to exacting tolerances, ensuring smooth operation and optimal power transfer while maintaining the engine s signature balance of efficiency and responsiveness. The **MZ1222** designation identifies it as part of Mazda s advanced Skyactiv-G architecture, which emphasizes lightweight construction, improved combustion efficiency, and reduced friction key factors that contribute to the engine s impressive torque delivery and fuel economy. With a robust main journal and crankpin design, this crankshaft is engineered to withstand the stresses of high-revving performance, whether in daily driving, spirited acceleration, or extended high-load conditions. Its precise counterweight configuration minimizes vibration, enhancing both drivability and longevity, while the optimized stroke-to-bore ratio ensures a harmonious powerband that caters to both torque at lower RPMs and spirited top-end performance. Whether used in the **CX-5** or other Mazda applications, this crankshaft is a critical element in maintaining the engine s reputation for smooth, linear power delivery and dependable operation across a wide range of driving conditions. Built to Mazda s exacting standards, it is a vital replacement part for engines requiring restoration, performance tuning, or routine maintenance, ensuring that the engine continues to perform with the same level of precision and efficiency for which Mazda s Skyactiv technology is renowned.

### **Pros and Cons of Buying a Used Mazda 303.MZ1222 CX-5 Engine (2.5L, 2020 2023 Models)**

#### **Overview**

The **Mazda 303.MZ1222** is the 2.5L Skyactiv-G engine found in the **CX-5 (2020 2023)**. It is a well-regarded inline-4 engine known for its reliability, efficiency, and smooth performance. However, like any used engine, it has advantages and potential drawbacks depending on its condition, mileage, and maintenance history.

---

### **Pros of Buying This Engine**

1. **Proven Reliability**

- The **Skyactiv-G 2.5L** is part of Mazda s **Skyactiv** lineup, which emphasizes efficiency and durability. It has a **low compression ratio (10.5:1)**, reducing stress on components and improving longevity.

- Many owners report **fewer issues** compared to older Mazda engines (e.g., pre-2010 models with timing chain problems).

- The **crankshaft (MZ1222)** is forged and designed for **high durability**, reducing the risk of catastrophic failure from wear.

2. **Good Fuel Efficiency**

- The **2.5L Skyactiv-G** delivers ** 25 30 MPG combined** in the CX-5, making it cost-effective for daily driving.

- Mazda s **direct injection and variable valve timing** improve efficiency without sacrificing power.

3. **Smooth Power Delivery**

- The engine produces ** 187 190 hp and 175 181 lb-ft of torque**, providing **responsive acceleration** without excessive vibration.

- The **direct injection system** reduces knocking and improves throttle response.

4. **Lower Maintenance Costs Compared to V6s**

- Unlike some **3.5L V6 engines** in other SUVs, the **2.5L inline-4** has **fewer moving parts**, leading to **lower long-term maintenance expenses**.

- **No timing belt issues** (unlike some older Mazda engines) because it uses a **timing chain**, which lasts much longer.

5. **Aftermarket Support & Availability**

- The **MZ1222 engine** is widely available in the **used market**, with **rebuilt units, remanufactured parts, and aftermarket support**.

- **Common issues (if any) are well-documented**, making repairs easier for mechanics.

6. **Good for High Mileage (If Well-Maintained)**

- With **proper maintenance (oil changes, cooling system checks, timing chain inspection)**, this engine can easily exceed **200,000 miles**.

- Mazda s **Skyactiv engines are known to last longer than many competitors** in similar classes.

7. **Compatibility with CX-5 (2020 2023)**

- The **2.5L engine fits seamlessly** into the **CX-5 platform**, with no major compatibility issues when swapping or rebuilding.

- **Transmission options (6-speed automatic or 6-speed manual)** are well-supported.

---

### **Cons of Buying This Engine**

1. **Potential Timing Chain Issues (If Neglected)**

- While **better than timing belts**, **timing chains can stretch or wear** over time, leading to **valve train noise (ticking/ratcheting)**.

- **Rattling noise** from the engine bay (especially at idle).

- **Check Engine Light (CEL)** for **P0016 (timing chain tensioner) or P0017 (camshaft position timing over-advanced)**.

- **Replacement cost:** **$1,200 $2,000** (labor-intensive, requires **removing the intake manifold and camshaft covers**).

2. **Oil Consumption (Minor but Possible)**

- Some owners report **slight oil burning**, especially in **high-mileage examples**.

- **Not as severe as some V6 engines**, but **regular oil changes (every 5,000 7,500 miles)** are recommended.

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

3. **Carbon Buildup in Direct Injection Systems**

- **Rough idle or misfires**.

- **Reduced engine responsiveness**.

- **Solution:** **Intake valve cleaning (every 60,000 100,000 miles)** or **using fuel system cleaners**.

4. **Water Pump & Cooling System Wear**

- The **water pump is belt-driven** (not thermostatically controlled), meaning it runs **continuously**, increasing wear.

- **Failure can lead to overheating**, which is **more critical in a 2.5L engine** than in larger V6s.

- **Replacement cost:** **$500 $900** (labor-heavy).

5. **Suspension & Drivetrain Wear in High-Mileage Examples**

- **Worn bushings (subframe, sway bar links)**.

- **CV axle wear** (greasy boots, clicking noises).

- **Transmission fluid condition** (automatics can fail if fluid isn t changed).

- **Not engine-related, but adds to repair costs** if the vehicle is neglected.

6. **Limited Power Compared to V6 Options**

- The **2.5L is less powerful** than Mazda s **3.5L V6 (250 hp)**, which may be a drawback for **towing or aggressive driving**.

- If power is a priority, a **V6 swap** (from a **CX-9 or CX-5 Turbo**) is an option, but **not straightforward**.

7. **Used Engine Market Risks**

- **Salvage-title engines** may have **hidden damage** (bent crankshaft, warped block).

- **Rebuilt engines** can be **cheap but unreliable** if not done by a **reputable shop**.

- **Engine history (no flood damage, no major accidents)**.

- **Compression test results** (should be **consistent across all cylinders**).

- **No signs of **pre-ignition (knocking) or **valve float** (high RPM ticking).

---

### **Key Considerations Before Purchase**

1. **Inspect the Timing Chain & Tensioner**

- **Listen for rattling** (especially at cold start).

- **Check for oil leaks** around the **timing chain cover**.

- **Ideal:** **Replace the tensioner and guides** as a **preventative measure** ( $500 $800).

2. **Check for Oil Leaks**

- **Valve cover gaskets** and **oil pan gaskets** are common leak points.

- **Front crankshaft seal** can leak oil into the **timing chain area**.

3. **Verify Cooling System Health**

- **Test the water pump** (should spin smoothly when the engine runs).

- **Check for coolant leaks** (hoses, radiator, thermostat housing).

4. **Review Maintenance Records**

- **Oil change intervals** (synthetic every **5,000 7,500 miles**).

- **Timing chain inspection** (Mazda recommends **every 105,000 miles**).

- **Spark plugs & coils** (should be replaced **every 60,000 100,000 miles**).

5. **Test Drive & Listen for Issues**

- **Idling should be smooth** (no ticking, rattling, or misfires).

- **Acceleration should be linear** (no hesitation or rough spots).

- **Check for vacuum leaks** (common in direct injection engines).

---

### **Final Recommendation**

**Reliable daily driver** If well-maintained, this engine will **last 200,000 miles** with minimal issues.

**Budget-conscious buyers** **Cheaper to own than a V6** in the long run.

**Those who prioritize efficiency** **Good MPG and smooth power delivery**.

**DIY mechanics** **Common issues are fixable** with basic tools.

**You want high performance** The **3.5L V6 or turbo options** provide more power.

**You find a high-mileage example with neglected maintenance** **Timing chain, water pump, and oil consumption** will be major concerns.

**You don t want to deal with minor direct injection issues** **Carbon buildup and oil burning** require attention.

**You re buying a used engine without verification** **Always get a compression test and engine history**.

- **Buy from a trusted seller** (private

Details:

Donor Vehicle - 2022 CX-5. It is stored in doors and ready to be shipped. Stock Number - 2589. 4 ,2.5,AT,AWD.

Warranty: All parts come with our standard 60 day warranty.

specifications cranshafengin:

• for models: Cx-5, 303
• for makes: Mazda
• for years: 2020-2023
• model: Cx-5
• part type: Engine Crankshaft Crank Shaft
• conditions options: 4, 2.5, At, Awd
• genuine oem: Yes
• ipn: 303.mz1222
• year: 2022
• manufacturer warranty: 60 Day

general cranshafengin:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts

payments cranshafengin:

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

shipping cranshafengin:

• service: UPS Ground
• transit: 3-5 Days
• carrier: UPS
• class: Standard
• type: Fixed
• cost: $0.00

seller cranshafengin:

• # reviews: 27557
• city: Sauk Centre, Minnesota
• rating: 99.6%

offer cranshafengin:

• sold: 0
• started: February 28, 2026
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• best offers: True

returns cranshafengin:

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

Mazda CX-5 Is Similar To:

• 029600-0130 Mazda Denso Eccentric Shaft Sensor Crankshaft (30.3% similar) Mazda dens part number. Dens made in japan. Warranty: all JD of Miami parts have 30 day warranty...(April 11th, 2018)
• 029600-0132 Mazda Denso Crankshaft Position Sensor Genuine Oem Renesis (34.5% similar) Mazda part number. Sale may be canceled at any time due to walk in sales. Shipping in the us is 10 flat rate. Warranty: all JD of Miami parts have 30 day warranty. Shipping worldwide is made in japan...(February 26th, 2018)
• 12931474 Unbranded Mazda Crankshaft Crank Position Sensor Connector Plug Repair Pigtail (35.8% similar) Up for sale is a brand new crank position sensor connector the model mazda RX-7. There are two crank position sensors on the RX-7. This connector has been wired to match the signal sensor wiring harness. Includes 2 heat shrink butt connectors. Need it fast. Its been assembled by hand in the USA with...(May 27th, 2018)
• 13189367 Aftermarket Products New Crankshaft Position Sensor Ford Ranger Mazda Truck (27.7% similar) The items are brand new parts that look and fit same as original, except at a much better price...(March 22nd, 2018)
• 16320 Standard Crankshaft Ford Focus Contour Mercury Cougar Mystique Mazda Tribute (28% similar) This crankshaft has been turned and micro polished includes both main rod bearings in federal mogul brand...(October 21st, 2018)
• 1908052851 Lfr5 Mazda Engine Harmonic Balancer (28.1% similar) Most parts sold have been washed in an industrial washer and checked for damage. Has sticker with number LFR5 good usable part. Has 2/6 groove pulleys and rector ring. Has been washed and no damage seen. Buyer should compare part numbers, photos, and to ensure fit...(March 22nd, 2019)
• 3l5g-6k360-a Ford Mazda 2.3 Engine (25.7% similar) Buyer should compare part numbers, photos, and to ensure fit. Gears have good teeth. Most parts sold have been washed in a industrial washer and checked for damage. Has good bearings with no scaring. Has been washed and no damage seen. Has casting number 3L5G-6K360-A good usable part...(November 3rd, 2017)
• 594-218 Dorman Engine Harmonic Balancer Fits Mazda (25.6% similar) About the brand doorman: doorman is a leading supplier of original equipment dealer exclusive automotive replacement parts hardware and brake fasteners to aftermarket household organizational products mass merchandisers. Doorman designs packages and markets over different products manufactured to ...(March 9th, 2019)
• 5m1627 Std 5m1627std Acl New Engine Crankshaft Main Bearing Set Mazda (36.1% similar) To protect product integrity, some items are not returnable once the packaging has been opened. New ACLU engine crankshaft main bearing set 5M1627STD misdirect fit and function meets or exceeds oe specification important automotive parts have specific fitment requirements. Best warranty we remain ...(June 30th, 2018)
• 9590800 Aftermarket Replacement New Crankshaft Position Sensor Mazda Ford Probe Aspire (27.3% similar) The items are brand new parts that look and fit same as original, except at a much better price...(September 14th, 2018)
• Aftermarket For Mazda Miata Crankshaft Position Sensor New (34.6% similar) The images shown are not actual item and for your reference only. Total amount due includes the final offer price plashing and handling. Condition: brand new cross reference: ZL0118221A, J5T27072, PC390, ZL0118221, J5T27072 warranty: one year unlimited miles package includes: 1PC x crankshaft ...(May 24th, 2018)