1. Antique, Vintage, Historic Motorcycle Parts For Sale
  2. sku: 20403124717431741
  3. TWIN 30-0105

V-TWIN MANUFACTURING 30-0105 Weld Exhaust Flange Repair

fits model: Shovelhead. make: Harley.

30-0105 V-twin Manufacturing Harley Shovelhead Weld On Exhaust Flange Repair Parts

( Brand: V-twin Manufacturing ), ( Manufacturer Part Number: 30-0105 ), ( Part Type: Exhaust Flange )

Review V TWIN MANUFACTURING Harley Weld On Exhaust Flange Repair Parts fits SHOVELHEAD

The **V-Twin 30-0105 Harley Shovelhead Weld-On Exhaust Flange Repair** is a meticulously engineered, high-quality replacement component designed specifically for Harley-Davidson s legendary Shovelhead V-Twin engines, spanning models from the mid-1970s through the early 1980s. Crafted from durable, heat-resistant **mild steel**, this flange is precision-machined to ensure a seamless fit with the stock exhaust manifolds, cylinder heads, or aftermarket headers, eliminating the need for costly custom fabrication or welding errors. The weld-on design allows for a clean, professional installation, whether you're restoring a classic Sportster, Electra Glide, or Panhead-inspired bike, ensuring optimal exhaust flow and structural integrity. Engineered with a **smooth, tapered profile**, this flange minimizes stress points where the exhaust meets the engine, reducing the risk of cracks or leaks that often plague aftermarket conversions. Its **universal compatibility** makes it ideal for both stock and modified setups, accommodating everything from stock headers to high-performance exhaust systems, while maintaining the original aesthetic of the Shovelhead s iconic exhaust architecture. Whether you're tackling a full restoration, addressing a leaky manifold, or upgrading your bike s exhaust, this flange provides a reliable, factory-like solution that restores performance and durability without compromising the timeless character of the Shovelhead engine. Built to withstand the extreme temperatures and vibrations inherent in high-revving V-Twins, it s a must-have for any serious enthusiast seeking a hassle-free, long-lasting repair.

### **Pros and Cons of buying a V-Twin 30-0105 Harley Shovelhead Weld Exhaust Flange Repair**

#### **Pros:**

The **30-0105 exhaust flange repair kit** is a popular aftermarket solution for restoring or reinforcing the exhaust flange on Harley-Davidson Shovelhead engines. Here are the key advantages:

1. **Cost-Effective Fix** Replacing a damaged or cracked exhaust flange with a new OEM part can be expensive, especially for older Shovelheads. This repair kit provides a budget-friendly alternative that can extend the life of your existing flange.

2. **Easy Installation** Designed for DIY mechanics, the kit typically includes pre-drilled holes and welding instructions, making it accessible for those with basic welding skills. No major engine disassembly is usually required beyond removing the exhaust system.

3. **Strengthens Weak Points** Shovelhead flanges are notorious for cracking due to heat, stress, or age. This repair reinforces the flange, reducing the risk of future failures, especially in high-mileage or modified engines.

4. **Compatibility** The **30-0105** is specifically engineered for Shovelhead models (1970 1985), ensuring a proper fit with the factory flange pattern. It works well with stock and some aftermarket exhaust setups.

5. **Prevents Leaks and Noise** A failing flange can cause exhaust leaks, which not only waste power but also create loud hissing noises. This repair seals the flange properly, improving performance and reducing noise.

6. **Long-Term Solution** While not a permanent replacement, a well-executed weld repair can last for years, especially if the engine is not heavily modified or subjected to extreme stress.

7. **Available from Reputable Brands** Companies like **V-Twin, J&P Cycles, or Harley-Davidson Performance Parts** offer this repair, ensuring quality materials and instructions.

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#### **Cons:** Despite its benefits, there are some drawbacks to consider before purchasing:

1. **Welding Skill Required** While the kit is designed for simplicity, proper welding is critical. A poorly executed weld can weaken the flange rather than strengthen it, leading to future failures. If you lack welding experience, hiring a professional may be necessary, adding to the cost.

2. **Not a Permanent Fix** This is a **temporary repair**, not a full replacement. Over time, the original flange material may still degrade, especially if the engine runs hot or experiences excessive stress (e.g., high-performance modifications).

3. **Potential for Improper Fit** If the flange is severely warped or the original mounting holes are damaged, the repair may not align correctly. In such cases, a full flange replacement might be the only reliable solution.

4. **Limited Longevity Under Heavy Use** If the engine is modified with high-performance exhausts, headers, or forced induction, the stress on the flange increases. The repair may not hold up as long in these scenarios.

5. **Risk of Overheating** If the exhaust system is not properly insulated or if the engine runs too hot, the weld can weaken over time. Ensuring proper heat management is essential.

6. **Resale Value Impact** If you plan to sell the bike later, a repaired flange may not appeal to buyers as much as a fully restored or replaced part. Some enthusiasts prefer OEM or high-quality aftermarket flanges for authenticity.

7. **Material Quality Variability** While most reputable brands use durable materials, cheaper knockoffs or low-quality kits may fail prematurely. Always purchase from trusted suppliers.

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### **Conclusion:**

The **V-Twin 30-0105 Shovelhead exhaust flange repair** is a **practical, cost-effective solution** for restoring a cracked or damaged flange on a Harley-Davidson Shovelhead engine. It is ideal for **budget-conscious riders, DIY mechanics, and those who want a quick fix** without replacing the entire flange. However, it is **not a permanent solution** and requires **proper welding skills** to execute correctly.

If you are comfortable with welding and the flange is not severely damaged, this repair can **extend the life of your exhaust system** and prevent leaks. For **high-performance or heavily modified engines**, a **full flange replacement** may be a more durable long-term option.

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### **Recommendation:** - **Buy the repair kit** if:

- You have **basic welding experience** (or access to a professional welder).

- The flange is **cracked but structurally sound** with minimal warping.

- You want a **low-cost, temporary fix** to avoid a full flange replacement.

- Your engine is **stock or lightly modified**, with no extreme heat or stress.

- **Consider a full flange replacement** if:

- The flange is **severely warped or beyond repair**.

- You have a **high-performance or modified engine** that will put excessive stress on the flange.

- You plan to **keep the bike long-term** and want a more permanent solution.

- You are **not confident in your welding skills** and cannot hire a professional.

- **Alternative Options:**

- **J&P Cycles Flange Repair Kit** Another well-regarded option with similar benefits.

- **OEM or Aftermarket Flange Replacement** If budget allows, brands like **Harley-Davidson Performance Parts, J&P, or V-Twin** offer high-quality replacements.

- **Exhaust System Inspection** If the flange is part of a larger exhaust issue (e.g., rust, leaks, or damaged headers), address those problems simultaneously.

**Final Verdict:** The **30-0105 repair kit is a smart choice for a quick, affordable fix** when done correctly, but it should not be considered a permanent solution. Always weigh the **cost, effort, and long-term reliability** against your riding needs.

Details:

Bead Blasting Sand. Custom Chrome. Powder Coating. 11:00 am to 7:00 pm, Thur.

Fits: Harley Shovelhead. Parts Unlimited. Specializing in Obsolete Harley Parts and Services, Retro cycle Services: Motorcycle Restoration. Drag Specialties.

Eastern Motorcycle Parts. Aluminum exhaust repair ports are to be welded on broken or damaged heads. Harley Shovelhead Weld On Exhaust Flange Repair Parts 30-0105. , Currently unavailable from V-Twin at the time of this listing. Pictures speak a thousand words, so please know what you are buying on by looking at the pictures.

These prices are reflected in the calculated postage rate shown for this listing. USA Shipping quotes apply only to Continental.

part #: 300105 prices

  • $19.99-$24.95

specifications cyclevintagee:

  • for models: Shovelhead
  • for makes: Harley
  • brand: V-twin Manufacturing
  • mpn: 30-0105
  • part type: Exhaust Flange

general cyclevintagee:

  • Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories
  • condition: Used

shipping cyclevintagee:

  • carrier: USPS
  • service: USPS Ground Advantage
  • transit: 3-7 Days
  • class: Standard
  • type: Calculated
  • cost: $9.30

offer cyclevintagee:

  • options: Ship-to-home
  • started: February 3, 2026
  • quantity: 1
  • availability: In Stock
  • sold: 0

payments cyclevintagee:

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

returns cyclevintagee:

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

seller cyclevintagee:

  • rating: 100.0%
  • # reviews: 9606
  • city: Boonton, New Jersey
for models: shovelhead, for makes: harley, part type: exhaust flange,
category: motorcycle parts > motorcycle scooter parts accessories, sku: 20403124717431741,
V-twin Manufacturing 30-0105 Is Similar To:
cyclevintagee logo
2 offers $19.99–$24.95 USD
  • New other (see details). Offer #1 priced at $19.99 + $6.37 shipping estimate = $26.36* total. New old stock BB.+$6.37 shipping
  • Used. Offer #2 priced at $24.95 + $9.95 shipping estimate = $34.90* total. Eastern Motorcycle Parts Harley Shovelheads.+$9.95 shipping

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