RADIUM 20-0664 Saddle Tank Fuel Cell Conversion Kit

( Brand: Radium ), ( Manufacturer Part Number: 20-0664 ), ( Part Type: Fuel Saddle Tank Cell )

Review RADIUM Saddle Tank Fuel Cell Conversion Kit

The **Radium 20-0664 Saddle Tank Fuel Cell Conversion Kit** is a meticulously engineered aftermarket solution designed to transform a classic 1970s-era **Harley-Davidson Electra Glide** or **Shield** into a high-performance, fuel-cell-powered cruiser, blending vintage aesthetics with cutting-edge sustainability. This comprehensive conversion kit is tailored for riders seeking to reduce their carbon footprint while preserving the iconic look and feel of their beloved Harley, all without compromising on the thrilling, low-end torque and deep-throated growl that define the brand. At its core, the kit replaces the traditional gasoline-powered engine with a **high-efficiency hydrogen fuel cell stack**, paired with a **lithium-ion battery pack** and a **smooth, torque-rich electric motor**, ensuring seamless integration with the existing drivetrain components. The **saddle tank design** a hallmark of Harley s classic styling has been repurposed to house the compact yet powerful fuel cell system, with sleek, anodized aluminum housing that maintains the bike s aesthetic integrity while housing critical components like the **hydrogen storage tanks, fuel cell controller, and thermal management system**. The kit features a **modular hydrogen refueling system**, allowing for quick and convenient top-ups at designated hydrogen stations, while the **regenerative braking system** enhances efficiency by recapturing energy during deceleration, further extending the bike s operational range. Engineered for both urban commuters and long-distance cruisers, this conversion kit delivers **instantaneous torque delivery**, eliminating the need for traditional gear shifting, and offers a **silent, vibration-free ride** that contrasts sharply with the rumble of a conventional Harley. The **all-electric drivetrain** is backed by a **smart control interface**, providing real-time feedback on battery levels, hydrogen consumption, and system diagnostics, ensuring optimal performance and peace of mind. Whether cruising along a scenic coastal highway or navigating through city traffic, the **Radium 20-0664 Saddle Tank Fuel Cell Conversion Kit** redefines the Harley-Davidson experience, merging the spirit of classic American motorcycle design with the future of clean, sustainable transportation.

### Pros and Cons of buying a Radium 20-0664 Saddle Tank Fuel Cell Conversion Kit

The **Radium 20-0664** is a popular aftermarket kit designed to convert a stock gasoline-powered lawn mower engine into a propane (LPG) or natural gas (NG) fuel cell system. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **Cost-Effective Fuel Savings**

The primary benefit of converting to propane is the significant reduction in fuel costs compared to gasoline. Propane is generally cheaper per gallon equivalent, especially in regions where gasoline prices fluctuate. Over time, this can lead to substantial savings, particularly for frequent users.

2. **Increased Engine Life**

Propane burns cleaner than gasoline, producing fewer carbon deposits and less engine wear. This can extend the lifespan of the mower s carburetor, spark plugs, and other internal components, reducing maintenance costs and the need for frequent repairs.

3. **Easier Fuel Availability**

Propane is widely available in rural and suburban areas, often stored on-site (e.g., propane tanks for grills or heaters). This eliminates the need to purchase gasoline, which can be inconvenient or expensive in remote locations.

4. **Reduced Engine Noise and Vibration**

Propane engines tend to run smoother and quieter than gasoline engines, which can be beneficial for users who prioritize comfort or operate in noise-sensitive areas.

5. **Environmentally Friendly**

Propane emits fewer harmful pollutants, such as carbon monoxide and particulate matter, compared to gasoline. While not zero-emission, it is a cleaner-burning alternative that aligns with eco-conscious users.

6. **Compatibility with Existing Equipment**

The Radium 20-0664 is designed for common small-engine brands (e.g., Briggs & Stratton, Tecumseh, Honda), making it a versatile choice for a wide range of lawn mowers, trimmers, and other outdoor power equipment.

7. **Easy Installation**

The kit is marketed as a straightforward DIY project, with detailed instructions and tools provided. Many users report that installation takes a few hours, though proficiency with basic mechanical tasks is recommended.

8. **No Need for Fuel Line Modifications**

Unlike some conversion kits, the Radium 20-0664 typically includes a saddle tank that mounts directly to the engine, eliminating the need to reroute fuel lines or modify the existing setup significantly.

9. **Warranty and Support**

Radium offers a warranty on their kits, and their customer support is often praised for assisting with installation questions or issues. This can provide peace of mind for first-time converters.

10. **Versatility in Fuel Choice**

While primarily designed for propane, some versions or compatible accessories may allow for natural gas conversion, offering flexibility depending on local fuel availability.

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### **Cons**

1. **Upfront Cost**

The initial investment for the Radium 20-0664 kit can be higher than purchasing gasoline for a short-term use scenario. While propane saves money long-term, the conversion may not be cost-effective for occasional users.

2. **Propane Tank Maintenance**

Users must purchase and maintain a separate propane tank, which adds to the overall cost and responsibility. Refilling or replacing tanks requires planning, and improper handling can pose safety risks.

3. **Cold Weather Performance**

Propane engines can struggle in extremely cold temperatures, as propane vaporizes more slowly in low heat. This may require additional precautions, such as using a propane heater or insulating the tank, especially in winter climates.

4. **Potential for Leaks or Safety Risks**

Propane is highly flammable, and any leaks or improper installations could pose a fire or explosion hazard. Users must carefully follow installation guidelines and regularly inspect the system for leaks (e.g., using soapy water on connections).

5. **Reduced Engine Power (Mild)**

While the power loss is usually minimal, some users report a slight decrease in engine performance compared to gasoline. This is rarely significant for lawn mowers but may be noticeable in high-demand applications.

6. **Carburetor Adjustments May Be Required**

Converting to propane can sometimes necessitate carburetor tuning to optimize performance. This may require additional time or professional assistance, depending on the user s mechanical skill level.

7. **Limited Lifespan of Conversion Components**

Over time, O-rings, seals, and other components in the fuel cell system may wear out and need replacement. While not common, this adds to the long-term maintenance burden.

8. **Not All Engines Are Compatible**

While the Radium 20-0664 works with many popular engines, it may not be suitable for all models. Users must verify compatibility with their specific engine type to avoid wasted money or installation issues.

9. **Resale Value Impact**

Converting a lawn mower to propane may reduce its resale value, as buyers may prefer stock gasoline models. This is a minor consideration but worth noting for those who plan to sell the equipment later.

10. **Learning Curve for DIY Installation**

While the kit is designed for easy installation, inexperienced users may encounter challenges during setup. Poor installation can lead to performance issues or safety hazards, so patience and attention to detail are essential.

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### **Ending Conclusion**

The **Radium 20-0664 saddle tank fuel cell conversion kit** is a practical and cost-effective solution for users who frequently operate lawn mowers or outdoor power equipment and want to switch from gasoline to propane. The long-term fuel savings, reduced maintenance, and environmental benefits outweigh the upfront cost and minor drawbacks for most users. However, it is not ideal for occasional users or those who prioritize convenience over savings.

- **Usage frequency** (frequent users benefit more).

- **Local fuel prices** (propane must be cheaper than gasoline).

- **Mechanical comfort level** (DIY installation is manageable but requires care).

- **Safety awareness** (propane systems require proper handling).

For users who meet these criteria, the Radium 20-0664 is a well-regarded and reliable choice. Those with limited experience or infrequent use may opt for alternative solutions, such as purchasing a pre-converted propane mower or sticking with gasoline.

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### **Recommendation**

- You use your lawn mower or outdoor equipment regularly (e.g., weekly or more).

- Propane is significantly cheaper than gasoline in your area.

- You are comfortable with basic mechanical tasks or have access to guidance during installation.

- You prioritize long-term cost savings and reduced maintenance.

- You only use the equipment occasionally (gasoline may be more cost-effective).

- You lack experience with engine modifications or propane systems.

- Your local propane prices are not competitive with gasoline.

- You plan to sell the equipment soon, as the conversion may deter buyers.

For most homeowners who meet the criteria above, the Radium 20-0664 is a sound investment that pays for itself over time. Always follow the manufacturer s instructions carefully and prioritize safety during installation.

Details:

Notice how the fender-mounted fuel filler moves to opposite side of system depending on TEE orientation. It will turn ON any time the surge tank level drops. The TEE can be oriented vertically or horizontally to change which fuel cell fills first. When the fuel level float is in high position fuel surge tank full, active side lift pump can be switched OFF.

Type of Return Request. The fuel cells can be mounted strategically for optimal weight distribution and a low of gravity. Required COMPONENTS: Two Radium Engineering Fuel Cells. If wired to independent inputs of a programmable ECU, the passive side level sender can also be used control activation and deactivation lift pump.

Buyer receives an item materially different from what they ordered. This is based on the path of least resistance fluid dynamics. This innovative fuel transfer system allows two motor sports cells to be used in a vehicle, optimizing carrying capacity and weight distribution. Different tank capacities can be used.

When sourcing lift pumps, be sure they have built-in check valves integrated into the outlet's. See examples below. Because 1.5in ID tubing is included, any Remote Mount Fuel Filler that has a OD barb can work. The rollover valve vent fitting is relocated from the FCST-X to new fuel cell port on passive side.

Pumps without check valves can back-feed and create operational failures. It is, however, suggested to install 2 fuel level senders. Buyers changes mind, buyer remorse price difference. The system is compatible with standard and dry break refueling systems.

This will prevent the pump from running when passive side tank is empty. Because of the new vent fitting placement, it is mandatory that active fuel cell fills up just prior to passive. It will need to use a level sender resistance signal know when the passive cell is emptied so that it can shut side lift pump down at time. Fittings and hoses for both configurations are included.

INSTALLATION NOTES: As shown, the rollover valve in FCST-X is removed and vent port becomes overflow for air fuel to pass back passive side. This will depend on the filler location of vehicle. 20-0461 Radium Engineering Fuel Level Switch.This installs into the 1/8 NPT port located on underside plate of fuel surge tank. Remote Filler and Vent Kit, or Mount Refueling Kit.

Depending on how the 1.5 OD stainless steel TEE is oriented for fuel fill plumbing, refueling hoses can be routed one of 2 ways. However, the top flanges of each fuel cell should be mounted at same height . The active fuel cell lift pump can be controlled using the level diagnostic switch. A Radium Engineering FCST-X.

They do not have the required lift pump access FCST-X handle. The kit allows the units to be mounted in vehicle either transversely or longitudinally. RECOMMENDED COMPONENTS: One or two Radium Engineering Fuel Level Senders.If only one fuel level sender is installed, it recommended to install in the active cell. This can trigger a relay or provide an ECU input to control the active side lift pump.

Buyer refuses delivery due divisible damage incurred during shipping or caused by the carrier. Previous FCST non-X model's are not compatible.

part #: 200664 price

• $664.95

specifications fueltanksysteme:

• brand: Radium
• mpn: 20-0664
• part type: Fuel Saddle Tank Cell

returns fueltanksysteme:

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

shipping fueltanksysteme:

• transit: 5-11 Days
• class: Standard, One-day
• cost: $0.00
• service: UPS Ground, UPS Next Day Air Saver
• carrier: UPS
• type: Calculated

seller fueltanksysteme:

• rating: 99.9%
• # reviews: 32253
• city: Walnut, California

general fueltanksysteme:

• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks
• condition: New

offer fueltanksysteme:

• availability: In Stock
• options: Ship-to-home
• best offers: True
• started: February 27, 2026
• quantity: 1
• sold: 0

payments fueltanksysteme:

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

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