INFINITI 373003WU0B Drive Shaft Rear 370005UB0B

( Manufacturer Part Number: 373003WU0B ), ( Part Type: Driveshaft ), ( Ipn: 370005ub0b ), ( Partout Id: 33773 ), ( Fitment Notes: Rear ), ( Genuine Oem: Yes ), ( Donor Vehicle: 2017 Infiniti Qx50 )

Review INFINITI Drive Shaft Oem Rear fits QX50 AWD 2017

The **Infiniti QX50 (Model Year 2017) Rear Drive Shaft Assembly (Part Numbers: 373003WU0B and 370005UB0B for AWD configurations)** is a precision-engineered, high-performance drivetrain component designed to deliver seamless power transfer between the transmission and rear wheels in Infiniti s signature all-wheel-drive (AWD) system. Crafted from durable, high-grade materials, this drive shaft is engineered to withstand the demands of modern driving, including aggressive acceleration, sharp cornering, and varied road conditions, ensuring long-lasting reliability and optimal performance. The assembly features a robust **constant velocity (CV) joint design** at both the inner and outer ends, allowing for smooth articulation and flexibility as the suspension moves, which is critical for maintaining a stable and responsive driving experience. The inner joint connects to the transmission output shaft, while the outer joint drives the rear axle, with a protective **boot cover** made from reinforced rubber to shield internal components from debris, moisture, and road contaminants, thereby extending the lifespan of the shaft and preventing premature wear. This drive shaft is compatible with Infiniti s **QX50 (2017 model year)** equipped with the **Q45 or VQ37VHR engine** and the **AWD system**, ensuring seamless integration with the vehicle s powertrain architecture. Whether navigating city streets, winding mountain roads, or highway cruising, this drive shaft plays a pivotal role in maintaining the QX50 s dynamic handling, torque distribution, and overall driving dynamics, making it an essential component for preserving the vehicle s performance and longevity.

### **Pros and Cons of buying a Infiniti QX50 (2017) Rear Drive Shaft (Part Numbers: 373003WU0B and 370005UB0B for AWD)**

#### **Pros of purchasing a Drive Shaft**

1. **OEM Quality and Reliability** Infiniti (Nissan s luxury brand) parts are designed to meet or exceed factory specifications, ensuring proper fitment and durability. This reduces the risk of premature failure compared to aftermarket knockoffs.

2. **Compatibility with AWD System** The **370005UB0B** is specifically for the AWD rear drive shaft, meaning it integrates seamlessly with the QX50 s all-wheel-drive system, preventing drivability issues or sync problems.

3. **Long-Term Durability** Infiniti/Nissan parts are built to last, especially if the vehicle is maintained properly. A well-made drive shaft should handle the QX50 s weight and torque without excessive wear.

4. **Warranty Coverage** If purchased from an authorized dealer or reputable online retailer, the part may come with a warranty (e.g., 12 60 months), providing peace of mind against defects.

5. **Prevents Further Damage** A failing drive shaft can damage the CV joints, transmission, or differential if ignored. Replacing it proactively avoids costly secondary repairs.

6. **Resale Value Protection** Keeping the vehicle in good condition with genuine parts helps maintain its resale value, especially for luxury SUVs like the QX50.

---

#### **Cons of purchasing a Drive Shaft**

- **373003WU0B (rear drive shaft, non-AWD)** typically costs **$300 $600**.

- **370005UB0B (AWD rear drive shaft)** can range from **$500 $900 **, depending on the seller and condition.

- Labor costs for installation (if not DIY) will add **$150 $300 **, depending on the shop.

2. **Potential Counterfeit Parts** Buying from unverified sellers (e.g., eBay, Craigslist, or unknown online marketplaces) risks receiving **fake or mismatched parts**, leading to fitment issues or failure.

3. **Mismatched Part Numbers** Double-checking the exact part numbers is crucial. Using the wrong shaft (e.g., a **QX60** part instead of a **QX50**) can cause driveline vibrations, clunks, or even damage to the transmission.

4. **DIY Installation Difficulty** While possible, replacing a drive shaft in an AWD QX50 requires **specialized tools, torque specifications, and mechanical knowledge**. Improper installation can lead to **CV joint failure, boot leaks, or driveline noise**.

5. **Alternative Solutions May Be Cheaper** In some cases, **rebuilding the existing shaft** (if the issue is minor, like a worn yoke) or using a **high-quality aftermarket shaft** (e.g., **Dana, GSP, or ACDelco**) can be a more budget-friendly option without sacrificing quality.

6. **Potential for Hidden Damage** If the shaft was removed due to an accident or prior neglect, there may be **internal damage (bent shafts, cracked yokes, or worn bearings)** that isn t visible externally, requiring additional repairs.

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### **Key Considerations Before Purchase**

1. **Verify the Part Numbers** Ensure the **373003WU0B** (rear shaft) and **370005UB0B** (AWD rear shaft) match your **2017 QX50 s VIN**. Use Nissan s **part lookup tool** or consult a mechanic.

- **Authorized Infiniti/Nissan dealers** (highest quality, but most expensive).

- **Reputable online retailers** (e.g., **RockAuto, CarQuest, or eBay with verified sellers**).

- **Local junkyards** (may offer used OEM parts at a discount, but inspect for damage).

- **Bent or twisted shafts**.

- **Cracked or worn CV joints**.

- **Leaking or damaged boots**.

- **Rust or corrosion** (common in snowy climates).

4. **Budget for Installation** If not DIYing, factor in **labor costs** (typically **$150 $300 per shaft**).

5. **Consider Aftermarket Options** If the shaft is only **$200 $400**, a **high-end aftermarket shaft** (e.g., **Dana 44 or 46**) may offer similar durability at a lower cost.

6. **Check for Warranty** Some sellers offer **limited warranties** (e.g., 30 90 days). Ensure it covers **manufacturing defects**, not installation errors.

---

### **Conclusion & Recommendation**

You **prioritize reliability and long-term performance** over cost.

You **have access to a trusted seller** (dealer or verified online retailer).

The **part is within budget** (especially if labor is DIY or the vehicle is high-value).

You **need a warranty** for peace of mind.

The **existing shaft is severely damaged** (bent, cracked, or beyond repair).

The **cost is prohibitive** (aftermarket may suffice).

You **lack mechanical experience** (DIY installation is risky).

The **part is hard to find** (check for used OEM or high-quality aftermarket).

The **vehicle has other driveline issues** (address those first to avoid repeated repairs).

---

### **Final Recommendation**

- You **cannot find a reliable aftermarket equivalent**.

- The **vehicle is a daily driver** where longevity matters.

- You **have the budget** and **access to proper installation**.

- **Used OEM parts** from a junkyard (inspect thoroughly).

- **High-quality aftermarket shafts** (e.g., **Dana 46, GSP, or ACDelco**).

- **Rebuilding the existing shaft** if the damage is minor.

**Avoid cheap, unknown parts** they may save money upfront but lead to **premature failure, drivability issues, or transmission damage**, costing more in the long run.

1. **Confirm the exact part numbers** with your VIN.

2. **Get quotes from 2 3 sellers** (dealers, online, junkyard).

3. **Weigh cost vs. warranty** sometimes paying more upfront saves money.

4. **If DIYing, follow a step-by-step guide** (e.g., **ChrisFix or Haynes Manual**) to avoid mistakes.

5. **Have a mechanic inspect the new shaft** before installation if unsure.

**Bottom Line:** The **OEM Infiniti QX50 drive shaft is the safest choice** for most owners, but **aftermarket options can be viable** if sourced carefully. Always **prioritize quality over price** to avoid recurring issues.

Details:

WARRANTY: Premium Quality OEM Parts 90 Day Money Back Guarantee. Donor Vehicle: 2017 INFINITI QX50 Base 3.7V V6 - GAS FI. Part #: 373003WU0B: ABOUT THE PART: 2017 INFINITI QX50 Drive Shaft OEM 373003WU0B, 370005UB0B - AWD Rear.

part #: 373003wu0b prices

• $191.75-$640.41

specifications universajoin:

• for models: Qx50, Awd
• for makes: Infiniti
• mpn: 373003wu0b
• part type: Driveshaft
• ipn: 370005ub0b
• partout id: 33773
• fitment notes: Rear
• genuine oem: Yes
• donor vehicle: 2017 Infiniti Qx50

general universajoin:

• condition: Used
• Transmission Drivetrain > Driveshafts Parts > Driveshafts

payments universajoin:

• credit card: Visa
• other
• wallet: Paypal

offer universajoin:

• availability: In Stock
• quantity: 1
• options: Ship-to-home
• started: February 7, 2026
• sold: 0

returns universajoin:

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

shipping universajoin:

• transit: 4-10 Days
• class: Economy
• type: Fixed
• service: Economy
• cost: $49.99

seller universajoin:

• # reviews: 4238
• rating: 100.0%
• city: Oneida, Tennessee

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