MOPAR 864248 Connecting Rod Bearing Standard

( Brand: Mopar ), ( Manufacturer Part Number: 864248 ), ( Type: Connecting Rod Bearing ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review MOPAR New Old Stock Connecting Rod Bearing Pair Standard Plymouth #864248 fits 1934–1941

The **Mopar 864248 Connecting Rod Bearing** is a meticulously engineered, high-performance aftermarket bearing designed specifically for the classic **1934 1941 Plymouth straight-six engine**, including models like the **Plymouth Special, Deluxe, and Roadster**. Crafted to exacting standards, this bearing is a direct replacement for the original factory components, ensuring seamless integration with the engine s crankshaft and connecting rods while maintaining the integrity of the engine s original design. Constructed from premium **lead-indium bronze**, this bearing offers an optimal balance of durability, wear resistance, and load-bearing capacity, making it ideal for both restoration projects and high-mileage applications. The **standard size** designation ensures compatibility with the engine s original specifications, allowing for a precise fit without the need for modification, whether you're rebuilding an engine for classic car shows or restoring a vintage vehicle to its former glory. Engineered to withstand the demands of modern lubricants and operating conditions, this bearing helps minimize friction, reduce wear on the crankshaft journals, and extend the overall lifespan of the engine. Whether you're a meticulous restorer, a performance enthusiast, or a mechanic maintaining a beloved classic, the **Mopar 864248** is a reliable choice that delivers the performance and longevity expected from a genuine Mopar part.

**Pros and Cons of buying a Mopar 864248 Connecting Rod Bearing (Standard, 1934 1941 Plymouth)**

1. **Direct Fitment** This bearing is specifically designed for the 1934 1941 Plymouth engines, ensuring compatibility without modification. It matches the original specifications, reducing the risk of clearance issues or improper installation.

2. **OEM Quality** Mopar (Chrysler s aftermarket division) produces parts that meet or exceed original equipment manufacturer (OEM) standards. The bearing is likely made from high-quality materials, such as lead-bronze or similar alloys, which provide durability and resistance to wear.

3. **Reliability** Connecting rod bearings are critical components that support the crankshaft and piston assembly. A genuine or high-quality aftermarket bearing reduces the risk of catastrophic engine failure due to bearing wear or failure.

4. **Ease of Installation** Since it is a standard replacement part, installation is straightforward for someone with basic mechanical skills. No special tools or machining are typically required beyond what comes with the bearing kit.

5. **Cost-Effective for Repairs** Compared to rebuilding or replacing an entire engine, replacing just the connecting rod bearings is a relatively inexpensive fix. This makes it a practical solution for restoring or maintaining an older Plymouth engine.

6. **Compatibility with Classic Engine Projects** For enthusiasts restoring or modifying vintage Plymouth engines, using OEM or Mopar parts helps maintain authenticity and performance. It also ensures that the engine runs smoothly without unnecessary modifications.

7. **Widely Available** Mopar parts are widely distributed through auto parts stores, online retailers, and specialty classic car shops. This makes it easier to source the part quickly, even if you need to order it.

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1. **Age and Wear of Other Components** While the bearing itself may be new, the rest of the engine (crankshaft, pistons, oil passages, etc.) could be worn or damaged. Replacing just the bearings may not fully resolve underlying issues, such as oil starvation or misalignment, which could lead to premature failure of the new bearings.

2. **Potential for Counterfeit or Low-Quality Parts** Even though Mopar is a reputable brand, there is a risk of purchasing counterfeit or substandard parts, especially if buying from untrusted sellers. Always verify the authenticity of the part and the seller s reputation.

3. **Limited Longevity Without Proper Maintenance** If the engine lacks proper lubrication, cooling, or is operated under heavy loads (e.g., high RPM, towing, or extreme heat), the new bearings may wear out faster than expected. Regular oil changes and engine checks are essential.

4. **Skill Dependency** While installation is relatively simple, improper handling (e.g., cross-threading, incorrect torque, or debris in the bearing surfaces) can damage the new bearing or other engine components. Those without mechanical experience may need professional assistance.

5. **Cost of Additional Repairs** If the engine has other issues (e.g., worn crankshaft journals, oil leaks, or timing problems), addressing those may require additional time and money. A bearing replacement alone may not be a complete fix.

6. **Availability of Original Parts** While Mopar parts are reliable, some classic car enthusiasts prefer using original or restored parts for historical accuracy. In that case, sourcing an original bearing from a junkyard or restoration shop might be preferable, though it could be more expensive or harder to find.

7. **Potential for Over-Torquing** Connecting rod bolts (or studs) must be tightened to the manufacturer s specification. Over-torquing can strip threads or damage the bearing surface, while under-torquing can lead to loosening under load. Precision is required.

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The Mopar 864248 connecting rod bearing is a **highly practical and reliable choice** for restoring or maintaining a 1934 1941 Plymouth engine. Its direct fitment, OEM-quality construction, and ease of installation make it an attractive option for both DIY enthusiasts and professionals. However, it is not a standalone solution it should be part of a broader engine inspection and maintenance plan. Before purchasing, ensure that the rest of the engine (crankshaft, oil system, pistons, etc.) is in good condition to maximize the bearing s lifespan.

If the engine has been neglected or shows signs of wear (e.g., oil leaks, unusual noise, or poor compression), it may be wise to address those issues simultaneously or consult a mechanic to assess the full scope of repairs needed.

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1. **Verify Engine Condition** Before buying the bearing, inspect the crankshaft journals, oil passages, and rod bolts for wear or damage. If the crankshaft is worn or the oil system is compromised, consider replacing the crankshaft or addressing leaks first.

2. **Purchase from a Trusted Source** Buy the bearing from an authorized Mopar dealer, a reputable classic car parts supplier, or a well-reviewed online retailer to avoid counterfeit or low-quality parts.

3. **Follow Installation Guidelines** Use the manufacturer s instructions or a trusted repair guide (e.g., Haynes or Chilton manuals) for proper installation. Pay special attention to torque specifications for the rod bolts.

4. **Monitor Engine Performance** After installation, monitor the engine for unusual noises, oil pressure drops, or overheating. If issues arise, address them promptly to prevent further damage.

5. **Consider Professional Help if Needed** If you lack mechanical experience or confidence in the repair, consult a mechanic familiar with vintage Plymouth engines to ensure the job is done correctly.

**Final Verdict:** The Mopar 864248 connecting rod bearing is a **solid, cost-effective choice** for restoring a 1934 1941 Plymouth engine, provided the rest of the engine is in decent condition. With proper installation and maintenance, it will provide reliable service and help extend the life of your classic engine.

Details:

Plymouth: All model's. Years 1934-1941. Standard size. For 6-cylinder engines.

Part Type: New Old Stock. Original Mopar parts in original packaging. Make: Plymouth. Model: All model's.

Year: 1934-1941. Connecting Rod Bearing Pair Standard.

part #: 864248 prices

• $14.95-$16.99

specifications pistonrinro:

• for makes: Plymouth, Mopar
• for years: 1934-1941
• brand: Mopar
• mpn: 864248
• type: Connecting Rod Bearing
• vintage part: Yes
• country of origin: United States

offer pistonrinro:

• availability: In Stock
• started: April 9, 2026
• options: Ship-to-home
• quantity: 1
• sold: 0

seller pistonrinro:

• rating: 100.0%
• city: West Newbury, Massachusetts
• # reviews: 1526

shipping pistonrinro:

• transit: 4-8 Days
• type: Fixed
• service: USPS Ground Advantage
• class: Standard
• cost: $5.00
• carrier: USPS

returns pistonrinro:

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

general pistonrinro:

• condition: New other see details
• Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts

payments pistonrinro:

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

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