MAZDA NBSB118817R Engine Motor Crankshaft Crank Shaft CX-50 2.5L

( Manufacturer Part Number: NBSB118817R ), ( Oe/oem Part Number: Px1711300 / Px17-11-300, Px1311300 / Px13-11-300 ), ( Items Included: Undefined ), ( Material: Steel ), ( Vintage Part: No )

Review MAZDA 2.5l Engine Motor Crankshaft Crank Shaft Oem fits 2024

The **Mazda NBS-B11-8817R 2024 CX-50 2.5L Skyactiv-G Engine Crankshaft** is a precision-engineered component designed to deliver exceptional performance, reliability, and durability within Mazda s advanced Skyactiv-G powertrain architecture. Crafted from high-grade forged steel, this crankshaft embodies Mazda s commitment to lightweight yet robust construction, ensuring optimal power transfer and minimal vibrational loss during operation. The design incorporates a **five-main-bearing journal configuration**, a hallmark of Mazda s engineering philosophy, which enhances structural integrity while reducing friction and wear critical factors for maintaining the engine s efficiency and longevity. The crankshaft s **counterweighted design** is meticulously balanced to minimize torsional vibrations, contributing to a smoother driving experience and reduced stress on the engine s supporting components, such as the timing system and connecting rods. Engineered to operate seamlessly within the **2.5L Skyactiv-G inline-four engine** found in the 2024 Mazda CX-50, this crankshaft supports the engine s **direct-injection fueling system** and **variable valve timing (VVT)** technology, allowing for precise control over airflow and combustion efficiency. The **nitrided surface treatment** applied to critical bearing surfaces further enhances wear resistance, ensuring prolonged performance even under high-stress conditions. Whether installed in a new vehicle or as a high-quality replacement part, this crankshaft exemplifies Mazda s dedication to performance engineering, blending cutting-edge materials with time-tested mechanical principles to deliver a component that meets the demands of modern driving while adhering to the brand s reputation for precision and craftsmanship.

### **Pros and Cons of Buying a 2024 Mazda CX-50 with a 2.5L Engine (NBSB118817R) and Crankshaft Issues**

#### **Pros**

1. **Strong Brand Reputation** Mazda is known for reliability, fuel efficiency, and a well-engineered lineup. The CX-50, in particular, has received positive reviews for its refined ride, modern tech, and practicality.

2. **2.5L Skyactiv-G Engine** The 2.5L engine in the CX-50 is a well-regarded unit, offering a good balance of power (187 hp, 186 lb-ft torque) and efficiency (around 22-25 MPG combined, depending on transmission). It is also turbocharged in some trims, providing better performance without excessive fuel consumption.

3. **Modern Features and Tech** The CX-50 comes with advanced driver aids (adaptive cruise control, blind-spot monitoring, lane-keeping assist), a high-quality infotainment system (with wireless Apple CarPlay/Android Auto), and a comfortable interior with premium materials in higher trims.

4. **SUV Practicality** The CX-50 offers a spacious cabin, a high seating position, and a versatile cargo area (up to 55.5 cu. ft. with seats folded). It is also available with a choice of wheelbases (standard and extended), making it adaptable for different needs.

5. **Resale Value** Mazda vehicles generally hold their value well, and the CX-50 is no exception. This means you may recover a significant portion of your investment if you decide to sell or trade it in the future.

6. **Reliability and Warranty** The 2024 CX-50 comes with Mazda s standard warranty (3-year/36,000-mile basic, 5-year/60,000-mile powertrain), which provides peace of mind. Mazda s Skyactiv engines are also known for longevity if maintained properly.

7. **AWD Option** The CX-50 offers an available AWD system, which can be beneficial for all-weather driving or light off-road use, though it is not as capable as dedicated off-road SUVs.

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#### **Cons**

1. **Crankshaft Concerns (NBSB118817R)** The specific VIN (NBSB118817R) suggests a potential issue with the crankshaft, which could indicate a manufacturing defect, premature wear, or a recall-related problem. Crankshaft failures are serious and can lead to catastrophic engine damage if not addressed promptly. If this is a known issue, it may require costly repairs (potentially $3,000 $5,000 depending on labor and parts) or even a full engine replacement.

2. **Potential Dealer or Owner Neglect** If the crankshaft issue is not disclosed by the seller (e.g., a private party or dealer), it could be a hidden problem. Always verify the vehicle s service history and confirm that the crankshaft has been inspected or replaced if necessary.

3. **Turbocharged Models May Have Higher Maintenance Costs** While the 2.5L engine is generally reliable, turbocharged versions may require more frequent oil changes and turbo inspections to prevent issues like carbon buildup or turbo failure.

4. **Limited Off-Road Capability** The CX-50 is a lifestyle SUV, not a rugged off-roader. Its AWD system is not as capable as those in vehicles like the Subaru Forester or Jeep Wrangler, and it lacks features like locking differentials or high ground clearance.

5. **Competition in the Market** The CX-50 competes with well-regarded SUVs like the Honda CR-V, Toyota RAV4, and Subaru Forester. Some of these alternatives may offer slightly better fuel economy, reliability ratings, or resale value in certain markets.

6. **Higher Trim Costs** The CX-50 s premium trims (e.g., Signature, Grand Touring) come with a significant price tag, which may not be justified if you don t need the extra features like leather seats, premium audio, or advanced driver aids.

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### **Conclusion**

Buying a 2024 Mazda CX-50 with a 2.5L engine is generally a smart choice if the vehicle is free of major mechanical issues like crankshaft problems. The CX-50 offers a compelling blend of practicality, efficiency, and modern tech, and Mazda s reputation for reliability supports its long-term value. However, the crankshaft concern associated with the specific VIN (NBSB118817R) is a red flag that cannot be ignored. If this issue is confirmed, the repair cost could outweigh the vehicle s benefits, especially if you are on a tight budget.

### **Recommendation**

1. **Verify the Crankshaft Issue** Before purchasing, obtain a detailed inspection from a trusted Mazda dealer or independent mechanic. Request records confirming that the crankshaft has been checked, replaced, or that the vehicle is covered under a recall or warranty for this issue.

2. **Check for Recalls or Service Campaigns** Visit Mazda s official website or contact a dealer to see if there are any open recalls or service bulletins related to the crankshaft in this model year and VIN.

3. **Negotiate or Walk Away** If the crankshaft issue is confirmed and not addressed, either negotiate a significant price reduction to cover potential repair costs or consider another vehicle. The risk of a catastrophic engine failure is not worth it unless you are prepared to pay for the fix upfront.

4. **Consider Alternatives** If the CX-50 s price is justified by its features but the crankshaft issue is unresolved, look at similar SUVs with proven reliability, such as the Honda CR-V, Toyota RAV4, or Subaru Forester, which may offer better peace of mind.

5. **Budget for Maintenance** Even if the crankshaft is fine, factor in the cost of regular maintenance (oil changes, tire rotations, etc.) and potential future repairs, especially if the vehicle is turbocharged.

**Final Verdict:** Only proceed with purchasing this CX-50 if the crankshaft issue is fully resolved and documented. Otherwise, prioritize a vehicle with a clean history and no unresolved mechanical concerns.

Details:

Shipping FREE SHIPPING available for most items within lower 48 states. Color: BLUE 48B-INGOT METALLIC EXTERIOR / BLACK/GRAY VA5-BLACK W/GRAY INTERIOR. Please verify it fits and is compatible with your specific model before purchasing. This item has been previously used.

Donor vehicle: 2024 MAZDA CX-50 2.5s SELECT PACKAGE 2.5L AWD AUTOMATIC TRANSMISSION. Mileage: 18K MILES.

part #: nbsb118817r prices

• $249.99-$4012.10

specifications cranshafengin:

• for makes: Mazda
• for years: 2024
• mpn: Nbsb118817r
• oe/oem part number: Px1711300 / Px17-11-300, Px1311300 / Px13-11-300
• items included: Undefined
• material: Steel
• vintage part: No

general cranshafengin:

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

seller cranshafengin:

• # reviews: 93050
• rating: 99.9%
• city: Traverse City, Michigan

returns cranshafengin:

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

payments cranshafengin:

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

shipping cranshafengin:

• class: Economy
• transit: 4-6 Days
• type: Fixed
• cost: $50.00
• service: Economy

offer cranshafengin:

• quantity: 1
• options: Ship-to-home
• best offers: True
• sold: 0
• availability: In Stock
• started: May 8, 2026

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