DODGE TRUCK 303.CH8E12 Crankshaft 3.6L

( Brand: Dodge Truck ), ( Model: DURANGO ), ( Part Type: Crankshaft ), ( Conditions Options: 3.6, At ), ( Genuine Oem: Yes ), ( Ipn: 303.ch8e12 ), ( Manufacturer Warranty: 90 Day )

Review DODGE TRUCK Crankshaft 3.6l fits DURANGO 303 2012

The **Dodge 303 CH8E12 Crankshaft for the 2012 3.6L Pentastar V6 (Durango)** is a precision-engineered, high-performance component designed to deliver exceptional durability and reliability in one of the most robust and versatile powertrain setups in modern Dodge vehicles. This crankshaft is specifically crafted for the **3.6-liter Pentastar V6 engine**, which powers the 2012 Durango, offering a seamless blend of torque, efficiency, and longevity. Engineered from **high-grade forged steel**, this crankshaft is built to withstand the intense stresses of high-performance driving, towing, and heavy-duty applications, ensuring smooth operation even under demanding conditions. The **CH8E12 designation** indicates its compatibility with the **2012 model year**, where the Pentastar engine was at its peak of refinement, balancing fuel efficiency with robust power delivery. With **eight main journals** and **five counterweights**, this crankshaft is optimized for balanced rotational dynamics, reducing vibration and enhancing overall engine smoothness. Whether you're restoring a classic Durango, upgrading a high-mileage engine, or preparing for a performance build, this crankshaft serves as a critical upgrade to restore or enhance the engine s performance, longevity, and reliability. Perfect for mechanics, DIY enthusiasts, or fleet operators, this part is a testament to Dodge s commitment to engineering resilience into its powertrains, ensuring that your vehicle remains a dependable workhorse for years to come.

Buying a **Dodge 303 CH8E12 crankshaft for a 3.6L 2012 Durango** involves several considerations, as this part is critical to engine performance and longevity. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of Buying a Replacement Crankshaft**

1. **Restores Engine Performance**

A cracked or damaged crankshaft can cause catastrophic engine failure, leading to severe power loss, rough idling, or complete engine seizure. Replacing it restores proper engine function, allowing the vehicle to run smoothly and maintain its intended performance.

2. **Prevents Costly Engine Damage**

Driving with a failing crankshaft can lead to additional damage to connecting rods, pistons, bearings, and the block itself. Replacing the crankshaft early avoids secondary repairs that can cost significantly more than the crankshaft alone.

3. **Improves Reliability**

The 3.6L Pentastar engine (used in the 2012 Durango) is known for its durability, but crankshaft issues especially in high-mileage or heavily modified engines can compromise reliability. A new crankshaft ensures long-term dependability.

4. **Compatibility with Aftermarket Modifications**

If you plan to modify the engine (e.g., forced induction, high-performance camshafts, or increased displacement), a fresh crankshaft is often recommended to handle the additional stress. Aftermarket crankshafts (like the CH8E12) may offer improved strength or balancing for performance builds.

5. **Warranty Coverage (If Purchased from a Reputable Supplier)**

Some aftermarket crankshafts come with warranties, providing peace of mind against premature failure. Reputable suppliers (e.g., Crane, Eagle, or Ford Performance) often offer limited warranties on their parts.

6. **Potential for Improved Durability**

Some aftermarket crankshafts (like the CH8E12) are designed with enhanced materials or machining for better wear resistance, potentially extending the engine s lifespan beyond stock components.

7. **Resale Value Preservation**

A properly maintained engine with a new crankshaft can retain more of its value compared to one with known internal issues. This is particularly relevant if you plan to sell the vehicle later.

---

### **Cons of Buying a Replacement Crankshaft**

1. **High Upfront Cost**

A replacement crankshaft for a 3.6L Pentastar engine typically ranges between **$800 and $2,500**, depending on whether it s an OEM (original equipment manufacturer) or aftermarket part. Aftermarket options like the CH8E12 may be slightly more expensive but offer performance benefits.

2. **Labor-Intensive Installation**

Replacing a crankshaft requires a full engine teardown, including removal of the engine from the vehicle, disassembly of the lower end, and precision machining or replacement of related components (e.g., bearings, seals, rods). Labor costs can easily exceed **$1,500 $3,000**, depending on the shop and location.

3. **Additional Required Repairs**

If the crankshaft failure is due to neglect (e.g., lack of oil changes, poor maintenance), other components may also be worn out. This could require replacing:

- Connecting rods

- Bearings (main and rod)

- Pistons and rings

- Oil pump

- Timing chain/gear (if applicable)

These additional repairs can significantly increase the total cost.

4. **Risk of Counterfeit or Low-Quality Parts**

The aftermarket crankshaft market can be hit-or-miss. Some suppliers sell counterfeit or poorly machined parts that may fail prematurely, voiding warranties and causing further damage. It s critical to purchase from a trusted source with verifiable quality control.

5. **Time Off the Road**

The installation process can take **2 5 days**, depending on the shop s workload and whether the engine needs additional work. This downtime can be inconvenient for daily drivers.

6. **Potential for Overkill (If Engine is Near End of Life)**

If the vehicle has extremely high mileage (e.g., 200,000 miles) or other major issues (e.g., failing transmission, frame rust), investing in a crankshaft replacement may not be cost-effective. In such cases, a replacement engine or total write-off might be more practical.

7. **Specialized Knowledge Required**

Installing a crankshaft requires expertise in engine rebuilding. Mistakes during assembly (e.g., incorrect bearing clearance, improper balancing) can lead to premature failure. This is why professional installation is strongly recommended.

---

### **Conclusion**

Replacing a cracked or failing crankshaft in a 2012 Durango s 3.6L engine is a **necessary and often cost-effective solution** if the engine is otherwise healthy. The long-term benefits restored performance, reliability, and prevention of catastrophic failure far outweigh the short-term costs and inconvenience. However, the decision should be based on:

- The **condition of the rest of the engine** (are other components worn out?).

- The **vehicle s overall mileage and maintenance history**.

- The **source of the crankshaft** (OEM vs. aftermarket; ensure it s from a reputable supplier).

- The **budget for labor and potential additional repairs**.

If the engine is sound and the crankshaft is the primary issue, replacing it is a smart investment. If the vehicle is near the end of its useful life, the cost may not justify the repair.

---

### **Recommendation**

1. **Verify the Crankshaft Issue**

Before purchasing, confirm the exact nature of the problem (e.g., crack, wear, imbalance) via a professional inspection or ultrasound scan. This ensures you re addressing the root cause.

2. **Choose the Right Crankshaft**

- **OEM (Ford 303 CH8E12)**: Reliable but may be harder to source and slightly more expensive.

- **Aftermarket (Crane, Eagle, etc.)**: Often offers warranties and potential performance improvements. Ensure the part is **100% forged steel** and **precision-machined** to factory or better specifications.

- Avoid "remanufactured" crankshafts unless they come with a **full warranty** and are from a trusted supplier.

3. **Budget for Full Engine Rebuild**

If the crankshaft is being replaced, consider whether other components (bearings, rods, seals) need attention. A **full lower-end rebuild** (including new bearings, rods, and seals) is often recommended to maximize longevity.

4. **Use a Reputable Machine Shop**

- Dynamically balance the crankshaft.

- Use high-quality bearings and seals.

- Follow factory or aftermarket specifications for torque values.

5. **Consider Engine Swap or Replacement (If Applicable)**

If the vehicle has high mileage or other major issues, weigh the cost of a crankshaft replacement against a **used rebuilt engine** or a **new engine swap**. In some cases, this may be more economical.

6. **Maintain the Engine Post-Repair**

- Regular oil changes (synthetic oil recommended).

- Timing belt/chain inspection (if applicable).

- Coolant and filter replacements.

- Monitoring for unusual noises or performance issues.

---

### **Final Verdict**

- The engine is otherwise healthy.

- You have a trusted source for the part.

- You re prepared for the labor and potential additional repairs.

- The vehicle is worth the investment in longevity.

- The engine has extensive other damage.

- The vehicle s mileage or condition makes repair uneconomical.

- You re unable to source a high-quality, warranted part.

For most cases where the crankshaft is the primary issue, **replacing it is the best long-term solution** to avoid engine failure and preserve the vehicle s performance.

Details:

Transmissions: Transmissions will come with the torque converter and all sensors. The part is not a special order. The part has not been altered, modified, disassembled, overheated or damaged. Bumper assemblies DO NOT come with Upper Grilles unless stated.

Labor and Related Costs: This limited warranty does not cover labor, diagnostics, towing, rental car costs, or any other expenses related to the installation, testing, removal, replacement of a part. Check the Q A section for Business Support. Normal wear and tear from the previous use is expected.

The part is not a custom body cut. No expedited shipping is available. Convenience Items: Items attached to or included with the part, such as wiring, bulbs, sockets, sensors, coils, distributor caps, spark plugs, water pumps, filters, brake parts, backing plates, hoses, vacuum lines, u-joints, timing belts/components, similar items, are considered convenience items and not covered by this limited warranty.

Scope: This limited warranty covers defects in the purchased part that render it inoperable or defective within 90-day period. Axles Assemblies: Axle assemblies will not include any brake hardware: Calipers/Rotors/Shoes/Pads/Hoses/Brake Lines. Any bulbs or wiring still attached to the,Tail Light,assemblies are not warranted part of the listing in any way. All parts sold as is except expressly provided below.

Brokered/non-stocked parts ordered specifically for your request. Bolt-on items The part has not been installed. Sensors, valve covers, timing covers attached to core short/long blocks are not covered.

Please remember you are purchasing OEM Original Equipment Manufacturer USED parts. Exclusions from Limited Warranty. Dispute Resolution. Steering Columns: All steering columns sold will come without airbags.

Limited Warranty Coverage.

part #: 303.ch8e12 price

• $200.00

specifications cranshafengin:

• for models: 303, Durango
• for makes: Dodge
• for years: 2012
• brand: Dodge Truck
• model: Durango
• part type: Crankshaft
• conditions options: 3.6, At
• genuine oem: Yes
• ipn: 303.ch8e12
• manufacturer warranty: 90 Day

offer cranshafengin:

• availability: In Stock
• sold: 0
• quantity: 1
• started: April 29, 2026
• options: Ship-to-home

payments cranshafengin:

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

general cranshafengin:

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

returns cranshafengin:

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

shipping cranshafengin:

• cost: $55.00
• class: Standard
• type: Fixed
• service: Standard
• transit: 3-6 Days

seller cranshafengin:

• # reviews: 46279
• city: Annandale, Minnesota
• rating: 99.7%

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