MOPAR 68139993AA Sleeve

( Manufacturer Part Number: 68139993AA ), ( Part Type: Sleeve ), ( Manufacturer Warranty: 1 Year ), ( Genuine Oem: Yes ), ( Universal Fitment: Direct Replacement )

Review MOPAR Genuine Sleeve

The **Mopar 68139993AA Sleeve** is a precision-engineered, high-performance piston ring sleeve designed specifically for Ford and Mopar applications, ensuring optimal sealing, durability, and performance in demanding engine environments. Crafted from a proprietary blend of high-grade cast iron, this sleeve features a finely machined, smooth bore surface that minimizes friction and wear, allowing for smoother piston operation and extended engine life. The sleeve is engineered to fit seamlessly within the cylinder block, providing a tight, interference-free installation that prevents oil leakage and maintains proper compression. Its robust construction resists warping and distortion under high thermal and mechanical stress, making it ideal for both high-mileage restorations and performance builds where reliability is paramount. The 68139993AA sleeve is particularly well-suited for Ford engines, including those found in classic muscle cars, trucks, and modern performance applications, where precision and durability are critical. Whether used in a rebuild, upgrade, or maintenance project, this sleeve delivers consistent performance, helping to restore or enhance engine efficiency, power output, and longevity. Its compatibility with Mopar s rigorous quality standards ensures that it meets or exceeds factory specifications, providing peace of mind for mechanics and enthusiasts alike.

### **Pros and Cons of Buying a Mopar 68139993AA Cylinder Sleeve**

1. **Compatibility and Fitment** The Mopar 68139993AA is designed specifically for certain Chrysler, Dodge, and Jeep engines (such as the 3.6L Pentastar, 5.7L Magnum, and 6.1L Hemi). It is a direct replacement part, ensuring proper fitment without modifications.

2. **OEM Quality** Mopar is Chrysler s official aftermarket brand, meaning these parts are built to the same standards as original equipment manufacturer (OEM) components. This reduces the risk of premature failure compared to lower-quality aftermarket alternatives.

3. **Performance and Durability** The sleeve is made from high-quality materials, including cast iron or aluminum (depending on the engine application), which helps maintain engine compression, cooling efficiency, and long-term reliability.

4. **Warranty Coverage** Mopar parts typically come with a warranty (often 12 24 months), providing some protection against defects or premature wear.

5. **Ease of Installation** Since it is a direct replacement, installation is straightforward for a skilled mechanic or DIY enthusiast with basic engine repair experience. Proper gasket sealing and torque specifications must still be followed.

6. **Prevents Further Damage** If an engine has a worn or cracked cylinder sleeve, replacing it early can prevent catastrophic failure (such as a blown head gasket, coolant leakage, or engine seizure).

7. **Maintains Resale Value** Keeping an engine in good condition with OEM or high-quality aftermarket parts can help preserve the vehicle s resale value, especially for classic or high-demand models.

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1. **Cost** Mopar sleeves are more expensive than generic aftermarket alternatives. Prices typically range from **$100 $300 per sleeve**, depending on the engine application, and labor costs for installation can add significantly (especially if the engine needs disassembly).

2. **Labor-Intensive Installation** Replacing a cylinder sleeve often requires removing the engine from the vehicle, which can be time-consuming and costly if professional labor is needed. Some engines may also require additional work, such as replacing head gaskets, seals, or cooling system components.

3. **Potential for Additional Repairs** If the engine has been neglected, replacing just the sleeve may not be enough. Other components (such as pistons, rings, or bearings) may also need replacement, increasing the overall cost.

4. **Limited Availability for Older Models** While Mopar parts are widely available for modern Chrysler/Dodge/Jeep vehicles, some older or less common engines may have limited stock or longer lead times.

5. **Risk of Improper Installation** If not installed correctly (e.g., incorrect torque, improper sealing, or misalignment), the sleeve could leak or fail prematurely. This risk is higher for DIYers without experience in engine rebuilds.

6. **Wear on Other Components** If the engine has been running with a damaged sleeve, other parts (such as the crankshaft, camshaft, or cylinder head) may have been affected by coolant contamination or excessive wear, requiring additional repairs.

7. **Environmental and Safety Concerns** Engine disassembly involves handling fluids (oil, coolant, fuel) and dealing with potential leaks, which can be messy and require proper disposal.

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### **Conclusion**

Replacing a **Mopar 68139993AA cylinder sleeve** is a **necessary repair** if the original sleeve is cracked, worn, or leaking coolant. The decision to proceed depends on the **engine s condition, budget, and whether additional repairs are needed**.

- **If the engine is otherwise healthy**, the sleeve replacement is a **cost-effective way to restore performance and prevent further damage**.

- **If the engine has extensive wear**, the repair may turn into a **full rebuild**, making it wise to get a professional inspection first.

- **For DIYers**, this is a **challenging but rewarding** project if you have experience with engine work. Otherwise, professional installation is recommended to avoid costly mistakes.

### **Recommendation**

1. **Verify the Need** Confirm that the sleeve is indeed the issue (via inspection or a compression test) before purchasing.

2. **Check for Bundled Parts** Some Mopar kits include gaskets, seals, or other necessary components, reducing additional costs.

3. **Compare Prices** While Mopar is reliable, check for **aftermarket alternatives** (such as **Fel-Pro, Sealed Power, or OE equivalents**) that may offer similar quality at a lower cost.

4. **Get a Professional Opinion** If unsure about the engine s overall condition, consult a **trusted mechanic** to assess whether a sleeve replacement is sufficient or if a full rebuild is needed.

5. **Budget for Labor** If not doing the work yourself, factor in **shop labor costs**, which can range from **$500 $1,500 ** depending on the engine s complexity.

**Final Verdict:** The **Mopar 68139993AA sleeve is a solid choice** for reliability and fitment, but weigh the **cost vs. benefit** against the engine s overall health before proceeding. For most cases, **replacing it early prevents more expensive failures later**.

Details:

Parts must be resalable and in the original packaging. OEM Excellence Trusted Service. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. OEM Authentic Parts FAST Quick Shipping.

Customer Commitment: Focused on long-term customer relationships and enthusiast-level support. Genuine Mopar Sleeve 68139993AA: Parts: PROTECTIVE. Electrical parts are not returnable.

part #: 68139993aa prices

• $15.21-$18.22

specifications ocoosys:

• for makes: Mopar
• mpn: 68139993aa
• part type: Sleeve
• manufacturer warranty: 1 Year
• genuine oem: Yes
• universal fitment: Direct Replacement

payments ocoosys:

• other
• credit card: Mastercard
• wallet: Paypal

general ocoosys:

• Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components
• condition: New

returns ocoosys:

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

shipping ocoosys:

• cost: $10.50
• type: Fixed
• class: Standard, Expedited
• service: UPS Ground, UPS 2nd Day Air
• carrier: UPS
• transit: 4-9 Days

seller ocoosys:

• # reviews: 174
• rating: 100.0%
• city: Nashua, New Hampshire

offer ocoosys:

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

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