V-TWIN MANUFACTURING 10-0309 Right Roller Bearing Set .0004 Flathead Knuckle 9236

( Brand: V-twin Manufacturing ), ( Manufacturer Part Number: 10-0309 ), ( Part Type: Roller Bearing Case ), ( Oe/oem Part Number: 9236 ), ( Country Of Origin: Taiwan )

Review V TWIN MANUFACTURING Right Side Case Roller Bearing Set .0004 Harley Ul Flathead Knuckle #9236 fits FL

The **V-Twin 10-0309 Right Roller Bearing Set (Part #0004)** is a meticulously engineered replacement bearing assembly designed specifically for Harley-Davidson s classic **Flathead engine knuckle**, identified by the original part number **9236**. This high-performance bearing set is crafted to restore smooth operation and durability to the engine s right-hand side knuckle assembly, a critical component that supports the crankshaft and ensures proper alignment during engine operation. Engineered from premium-grade **chrome steel roller bearings**, this set is built to withstand the rigorous demands of vintage Harley-Davidson powerplants, delivering reliable performance even under high-stress conditions. The precision-machined rollers and hardened steel races are designed to minimize friction, reduce wear, and extend the lifespan of the knuckle assembly, making it an ideal upgrade for restorers, mechanics, and enthusiasts seeking to enhance the longevity and efficiency of their Flathead engines. Whether used in a carefully restored 1930s 1950s Harley-Davidson or a meticulously maintained classic cruiser, this bearing set ensures that the engine runs with the same fluidity and reliability as when it was new, helping to preserve the mechanical integrity of one of America s most iconic engines.

### **Pros and Cons of buying a V-Twin 10-0309 Right Roller Bearing Set (0004) for Harley-Davidson Flathead Knuckle 9236**

1. **Direct Compatibility** This bearing set is specifically designed for the Harley-Davidson Flathead engine s right knuckle (part #9236), ensuring a proper fit without modification.

2. **High-Quality Construction** V-Twin is a reputable manufacturer known for durable, precision-engineered bearings that reduce wear and extend engine life.

3. **Reduced Friction & Noise** Roller bearings are smoother than ball bearings, reducing vibration and operational noise in the knuckle assembly.

4. **Improved Reliability** Replacing worn or seized bearings prevents premature failure in the camshaft drive or timing components, which can lead to catastrophic engine damage.

5. **Easier Installation** The pre-packaged set simplifies the replacement process, reducing the risk of mixing incorrect parts.

6. **Cost-Effective Long-Term Solution** While the upfront cost is higher than some aftermarket alternatives, the longevity and performance benefits often justify the expense.

7. **Warranty & Support** V-Twin typically offers warranties on their products, providing peace of mind against defects.

1. **Higher Upfront Cost** Compared to generic or lower-quality aftermarket bearings, this set is more expensive, which may be a deterrent for budget-conscious buyers.

2. **Installation Complexity** Replacing the knuckle bearings requires disassembling the engine s lower end, which may be challenging for inexperienced mechanics. Professional labor could add significant cost.

3. **Limited Availability** As a specialized part for an older engine, sourcing may be difficult if not purchased from a trusted Harley-Davidson or performance parts dealer.

4. **Potential for Overkill** If the knuckle bearings are only slightly worn and the engine is otherwise in good condition, some riders might opt for a cheaper replacement instead.

5. **Compatibility Concerns** Ensure the bearing set matches your exact engine configuration (e.g., 74-cubic-inch vs. 80-cubic-inch Flathead) to avoid fitment issues.

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### **Conclusion**

The **V-Twin 10-0309 Right Roller Bearing Set (0004)** is a **high-quality, reliable upgrade** for the Harley-Davidson Flathead knuckle (9236), offering superior performance and longevity compared to OEM or lower-grade alternatives. While the cost is higher and installation requires mechanical skill, the benefits reduced friction, extended engine life, and improved smoothness make it a **strong recommendation** for riders who prioritize durability and performance.

**If your knuckle bearings are worn, noisy, or seizing, this is the best choice.** However, if you're on a tight budget or the engine is near the end of its life, weigh the cost against the potential return on investment.

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- Your Flathead s knuckle bearings are failing or worn.

- You want the best possible performance and longevity.

- You re comfortable with the installation process (or plan to use a professional mechanic).

- The engine is near the end of its serviceable life.

- You re working with a limited budget and the current bearings are only mildly degraded.

Details:

FL 1940-1954. Right Side Case Roller Bearing Set .0004 for Harley, Replaces OEM Part Number: 9263, Harrington roller bearings is a 12 piece set the right side crank case and measure .2504 x .600. Fits: UL 1937-1948.

part #: 100309 prices

• $1796.36-$1995.95

specifications bearingmotorcycleiz:

• for models: Fl
• for makes: Harley
• brand: V-twin Manufacturing
• mpn: 10-0309
• part type: Roller Bearing Case
• oe/oem part number: 9236
• country of origin: Taiwan

seller bearingmotorcycleiz:

• rating: 99.9%
• city: Seward, Nebraska
• # reviews: 26382

general bearingmotorcycleiz:

• condition: New
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Engine Bearings

shipping bearingmotorcycleiz:

• type: Calculated
• transit: 4-8 Days
• service: USPS Ground Advantage
• cost: $0.00
• class: Standard
• carrier: USPS

returns bearingmotorcycleiz:

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

payments bearingmotorcycleiz:

• credit card: Mastercard
• other
• wallet: Paypal

offer bearingmotorcycleiz:

• availability: In Stock
• quantity: 1
• options: Ship-to-home
• sold: 0
• started: March 5, 2026

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