MOPAR 68317350AA Crankshaft Kit

( Manufacturer Part Number: 68317350AA ), ( Part Type: Crankshaft ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included ), ( Replaces Part Number: 68229261aa, 68232672aa )

Review MOPAR Genuine Crankshaft Kit

The **Mopar 68317350AA Crankshaft Kit** is a high-performance, precision-engineered replacement solution designed exclusively for Ford 302 and 351 Cleveland V8 engines, ensuring optimal power delivery, durability, and reliability for both street and performance applications. Crafted from **forged 4340 steel**, this crankshaft kit delivers exceptional strength and resistance to fatigue, making it ideal for high-RPM applications, forced induction builds, and heavy-duty street machines. The kit includes a **fully balanced, ground, and polished crankshaft** paired with a **new main bearing set** (typically 7507 or equivalent, depending on engine configuration), ensuring smooth operation and extended component life. The crankshaft features **precision-machined journals** and **counterweights** that have been dynamically balanced to minimize vibration, reducing wear on the engine s supporting components and enhancing overall drivability. Whether you're restoring a classic muscle car, building a high-performance street machine, or preparing a competition engine, this kit provides the structural integrity and performance characteristics needed to handle aggressive power levels while maintaining longevity. Backed by Mopar s reputation for quality and compatibility, this crankshaft kit is a trusted choice for enthusiasts and professionals alike, offering a seamless upgrade that restores or enhances the performance of your Cleveland-powered engine.

### **Mopar 68317350AA Crankshaft Kit: Pros and Cons**

The **Mopar 68317350AA** is a crankshaft kit designed for certain Chrysler engines, including the **3.6L Pentastar (F2XX) and 5.7L/6.4L Hemi (5.7L V8, 6.4L V8)**. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **OEM Quality and Fitment**

- Mopar parts are built to factory specifications, ensuring proper fitment and performance in original equipment applications. This reduces the risk of compatibility issues with aftermarket components.

2. **Durability and Reliability**

- The crankshaft is forged from high-quality steel, designed to withstand high RPMs, torque, and stress. This makes it suitable for both stock and modified engines, including those with forced induction or high-performance tuning.

3. **Balanced and Precision-Machined**

- The crankshaft undergoes strict balancing and machining processes to minimize vibration and ensure smooth operation. This is critical for engines running at high speeds or under heavy loads.

4. **Compatibility with Aftermarket Upgrades**

- Many performance builders and tuners trust Mopar for critical components like crankshafts. The 68317350AA is often used in builds with turbocharging, supercharging, or aggressive camshafts, as it can handle increased stress.

5. **Warranty and Support**

- Mopar parts come with a warranty (typically 12 months or 12,000 miles), providing peace of mind in case of manufacturing defects. Chrysler/Mopar dealerships and authorized service centers can assist with installation and troubleshooting.

6. **Cost-Effective for Replacement**

- While not the cheapest option, it is often more affordable than aftermarket alternatives from lesser-known brands. It strikes a balance between price and quality for a critical engine component.

7. **Support for High-Performance Applications**

- The crankshaft is designed to handle the demands of modern engines, including those with direct injection, variable valve timing, and high-redline applications. It is a preferred choice for builders pushing power beyond stock limits.

8. **Ease of Installation (With Proper Tools)**

- While installation requires specialized tools (crank puller, alignment tools, etc.), Mopar provides clear documentation and technical support to guide the process. Many mechanics are familiar with working on Mopar cranks.

---

### **Cons**

1. **High Upfront Cost**

- The 68317350AA crankshaft kit is not cheap, often ranging between **$500 and $800**, depending on the engine application and retailer. This can be a significant investment, especially if the crank is being replaced due to failure rather than proactive maintenance.

2. **Requires Professional Installation**

- Crankshaft replacement is a labor-intensive job that demands precision. Improper installation can lead to engine damage, misalignment, or premature wear. Most DIYers will need to rely on a mechanic with experience in engine rebuilds.

3. **Limited Availability Outside Chrysler Dealerships**

- While Mopar parts are widely available, some specialty retailers or online marketplaces may not stock this specific crankshaft. Purchasing from unauthorized sellers could risk counterfeit or substandard parts.

4. **Potential for Overkill in Stock Applications**

- If the crankshaft is being replaced purely for routine maintenance (e.g., as part of a standard rebuild), a high-quality aftermarket crankshaft (from brands like **Crankshafts.com, JE, or Scat**) may offer similar performance at a lower cost. However, Mopar remains a safe, reliable choice.

5. **Weight Considerations**

- Some aftermarket cranks are lighter than OEM parts, which can improve engine balance and reduce reciprocating mass. The Mopar crankshaft is heavier, which may not be ideal for extreme high-RPM applications where weight reduction is prioritized.

6. **Compatibility with Modified Engines May Require Additional Work**

- If the engine has been heavily modified (e.g., stroked, custom block, or aggressive tuning), the Mopar crankshaft may still require additional balancing or machining to ensure optimal performance.

7. **Lead Time for Delivery**

- Like many OEM parts, the 68317350AA may have longer lead times, especially if ordered directly from Chrysler or Mopar. This could delay engine rebuilds or performance projects.

8. **Not a "One-Size-Fits-All" Solution**

- While versatile, this crankshaft is specific to certain Chrysler engines. Mixing it with non-Mopar components (e.g., aftermarket rods, pistons) may require additional engineering to ensure compatibility.

---

### **Conclusion**

The **Mopar 68317350AA crankshaft kit** is a **high-quality, reliable, and durable** choice for Chrysler engine applications, particularly in **stock, modified, or high-performance builds**. Its OEM backing ensures proper fitment, and its ability to handle stress makes it a trusted component for builders pushing power limits. However, its **high cost, professional installation requirement, and limited availability** may deter some users.

For **stock or lightly modified engines**, the Mopar crankshaft is an excellent investment in longevity and performance. For **extreme builds** (e.g., extreme turbocharging, custom engine projects), a **high-end aftermarket crankshaft** (from reputable brands) might offer advantages in weight reduction or custom machining but at a lower cost.

If **reliability, warranty support, and OEM compatibility** are priorities, the Mopar crankshaft is a **strong recommendation**. If **budget or weight reduction** is more important, a well-researched aftermarket alternative could be worth considering.

---

### **Final Recommendation**

- You are rebuilding a **Chrysler 3.6L Pentastar, 5.7L Hemi, or 6.4L Hemi** engine.

- You prioritize **OEM quality, warranty coverage, and long-term durability**.

- Your build involves **moderate to high-performance modifications** (turbocharging, aggressive tuning).

- You have access to a **skilled mechanic** for installation.

- You are on a **tight budget** and can find a **high-quality aftermarket crankshaft** (e.g., Crankshafts.com, JE) with similar specs.

- You are building a **custom or extreme high-RPM engine** where weight reduction is critical.

- You are replacing the crankshaft **solely for routine maintenance** in a stock or mildly modified engine.

For most **serious builders and enthusiasts**, the Mopar 68317350AA remains a **top-tier choice** just weigh the cost against your project s needs.

Details:

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Genuine Mopar Crankshaft Kit 68317350AA: Parts: ENGINE. Electrical parts are not returnable. Parts must be resalable and in the original packaging.

part #: 68317350aa prices

• $177.00-$1237.07

specifications cranshafengin:

• for makes: Mopar
• mpn: 68317350aa
• part type: Crankshaft
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• parts included: Only Part Reference 0 On The Diagram Is Included
• replaces part number: 68229261aa, 68232672aa

shipping cranshafengin:

• transit: 4-9 Days
• cost: $0.00
• type: Fixed
• service: Standard, Expedited, Overnight
• class: Standard, Expedited, One-day

offer cranshafengin:

• options: Ship-to-home
• quantity: 4
• started: March 12, 2026
• availability: In Stock
• sold: 0

general cranshafengin:

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

returns cranshafengin:

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

seller cranshafengin:

• city: Orlando, Florida
• rating: 100.0%
• # reviews: 94

payments cranshafengin:

• other
• wallet: Paypal
• credit card: Mastercard

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