1. Motorcycle Body-Frame Parts For Sale
  2. sku: 12570403825121773
  3. DRAG SPECIALTIES DS-391251

DRAG SPECIALTIES DS-391251 Gas Tank Mounting Frame Saver Big Kit Weld 41-84 El

fits model: Fl, Twin. make: Harley, Davidson.

Ds-391251 Drag Specialties Harley Davidson Gas Tank Mounting Kit Frame Saver Weld On 41-84 Big Twin El Fl U

( Brand: Drag Specialties ), ( Manufacturer Part Number: DS-391251 ), ( Part Type: Tank Mounting Frame ), ( Material: Steel ), ( Country Of Origin: United States )

Review DRAG SPECIALTIES Harley Davidson Gas Tank Mounting Kit Frame Saver Weld On 41-84 Big El fits TWIN FL

The **Harley-Davidson Specialties DS-391251 Frame Saver Weld Gas Tank Mounting Kit** is a meticulously engineered solution designed exclusively for the **1941 1984 Big Twin (EL/FL) models**, ensuring a seamless and structurally sound installation of your gas tank while preserving the integrity of your bike s frame. This premium kit eliminates the need for costly and potentially damaging frame modifications by providing a robust, factory-inspired mounting system that distributes weight evenly across the frame rails, reducing stress on critical welds and joints. Crafted from high-quality, heat-treated steel components, the kit includes precision-machined brackets, reinforced mounting plates, and carefully positioned gussets that mimic Harley-Davidson s original engineering principles, offering both durability and a classic aesthetic. The design incorporates a **weld-in frame saver** that anchors directly to the frame s main rails, preventing sagging or misalignment over time a common issue with aftermarket tanks that rely solely on clamps or improperly secured mounts. Whether you re restoring a vintage EL/FL or upgrading a classic with a new tank, this kit ensures a **clean, factory-like fit** without compromising the bike s structural integrity. Ideal for both DIY enthusiasts and professional mechanics, the DS-391251 combines functionality with heritage craftsmanship, making it an indispensable upgrade for any Big Twin owner seeking a permanent, stress-free solution.

### **Pros and Cons of buying a Harley-Davidson Specialties DS-391251 Frame Saver Weld Kit (for 41-84 Big Twin EL Fl)**

#### **Pros:**

1. **Prevents Frame Damage** The primary purpose of this kit is to protect the frame from heat damage caused by welding the gas tank directly to it. Harley-Davidsons from the 1941-1984 era (Big Twin EL Fl) are particularly susceptible to frame warping if not properly supported during welding.

2. **Includes Necessary Hardware** The kit comes with all required components, including brackets, bolts, and sometimes gaskets or spacers, ensuring a proper fit without additional purchases.

3. **Preserves Original Frame Integrity** Since the kit distributes the weight and heat away from the frame, it helps maintain the structural integrity of the motorcycle, which is crucial for long-term reliability.

4. **Easy Installation** Designed for DIYers, the kit typically comes with clear instructions and is relatively straightforward to install, though some mechanical experience is recommended.

5. **Cost-Effective Alternative to Full Frame Replacement** If installed correctly, this kit can save hundreds (or even thousands) of dollars compared to the cost of replacing a warped frame.

6. **Compatibility with Aftermarket Tanks** Many aftermarket gas tanks require proper mounting solutions, and this kit ensures a secure and safe installation.

7. **Reduces Risk of Future Issues** Properly installed, the kit minimizes the chance of frame cracks or misalignment, which can lead to handling problems or mechanical failures.

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#### **Cons:**

1. **Not a Permanent Fix for All Cases** While it prevents heat damage, if the frame is already warped or damaged before installation, the kit alone won t correct structural issues. A professional inspection may be needed first.

2. **Requires Proper Installation** Improper installation (e.g., incorrect alignment, loose bolts, or insufficient support) can negate the benefits and may still lead to frame damage. Cutting and welding must be done carefully.

3. **Limited to Specific Models** This kit is designed exclusively for the 1941-1984 Big Twin EL Fl models. Attempting to use it on other Harley-Davidsons may result in poor fitment or functionality.

4. **Additional Tools Needed** Installation requires welding equipment, a cutting torch, and basic mechanical tools. If these are not available, hiring a professional welder may add to the cost.

5. **Potential for Rust or Corrosion Over Time** If not properly sealed or maintained, the mounting points could develop rust, especially in humid or salty environments.

6. **May Not Be Necessary for All Builds** If you re not welding the gas tank directly to the frame (e.g., using a separate mounting system or a different installation method), this kit may be unnecessary.

7. **Weight Distribution Considerations** While the kit helps with heat, it doesn t address the overall weight distribution of the tank. An improperly balanced tank can still affect handling.

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### **Conclusion:**

The **Harley-Davidson Specialties DS-391251 Frame Saver Weld Kit** is a **highly recommended accessory** for anyone working on a 1941-1984 Big Twin EL Fl who plans to weld the gas tank directly to the frame. Its primary benefit preventing frame damage far outweighs the minor drawbacks, especially for DIY enthusiasts who value long-term reliability.

However, it is **not a universal solution** it must be installed correctly, and the frame should be in good condition beforehand. If you re unsure about your welding skills or the frame s current state, consulting a professional before purchase is wise.

For most riders looking to install an aftermarket or stock gas tank on these older Harleys, this kit is a **worthwhile investment** that can save significant trouble (and money) down the road.

### **Recommendation:**

- **Buy it if:** You re welding a gas tank to a 1941-1984 Big Twin EL Fl and want to avoid frame damage.

- **Skip it if:** You re using an alternative mounting method (e.g., a separate bracket system) or if the frame is already damaged.

- **Consider professional help if:** You lack welding experience or need additional frame work before installation.

Ultimately, this kit is a **practical and cost-effective precaution** for the right project.

Details:

NOS Fits 1936-1947 EL model's. Harley Davidson Gas Tank Mounting Kit Frame Saver Weld on Big Twin model's, saver mounting kit for gas tanks must be welded to 4-speed stock or custom frames. Fits 1941-1984 FL model's 1936-1947 EL 1937-1948 U model's, Original weld-on frame brackets for Fat Bob Tanks complete kt includes upper and lower front rear with bolts nuts.

specifications fendeframat:

  • for models: Fl, Twin
  • for makes: Harley, Davidson
  • brand: Drag Specialties
  • mpn: Ds-391251
  • part type: Tank Mounting Frame
  • material: Steel
  • country of origin: United States

offer fendeframat:

  • started: April 17, 2026
  • quantity: 1
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0

seller fendeframat:

  • city: Streetman, Texas
  • rating: 99.6%
  • # reviews: 4440

returns fendeframat:

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

payments fendeframat:

  • wallet: Google-pay
  • credit card: Diners-club
  • other

general fendeframat:

  • Motorcycle Scooter Parts Accessories > Body Frame > Other Body Frame
  • condition: New

shipping fendeframat:

  • transit: 5-8 Days
  • class: Standard
  • service: USPS Ground Advantage
  • cost: $7.25
  • carrier: USPS
  • type: Fixed
for models: fl, twin, for makes: harley, davidson, part type: tank mounting frame, country of origin: united states,
category: motorcycle parts > motorcycle scooter parts accessories > body frame, material: steel, sku: 12570403825121773,
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