RDS MFG INC 11025 Diesel Install Kit — Gravity‑Feed Complete Fittings & Hardware

The RDS MFG INC 11025 Diesel Install Kit is a complete, economy-minded parts kit that lets you connect an RDS auxiliary fuel tank to your vehicle’s OEM diesel system for reliable gravity-fed fueling.

When you add an auxiliary transfer tank from RDS, you often need a few specific fittings and components to integrate that tank with your vehicle’s existing fuel system. The 11025 Diesel Install Kit bundles the essential items to make the installation straightforward and cost-effective for diesel applications, enabling gravity feed from the bottom of the tank. If you plan to use gasoline from an RDS tank, note that gasoline must be drawn from the top using an electric pump and is not gravity-fed like diesel.

What parts come with the 11025 Diesel Install Kit and why do they matter?

The kit contains the fittings and hardware required to create a secure connection between an RDS transfer tank and your vehicle’s factory fuel tank. Each component is chosen to match common RDS tank outlets and standard diesel fuel plumbing, reducing the need to source extras.

• Correctly sized fittings to mate the auxiliary tank outlet to vehicle fuel lines.
• Clamps and seals to prevent leaks and maintain a durable connection.
• Hardware that supports gravity-fed diesel siphoning from the tank bottom.

How does the kit enable gravity feed diesel fueling?

RDS transfer tanks designed for diesel commonly allow fuel to flow out from a bottom-mounted outlet by gravity. The 11025 kit supplies the necessary couplings and seals to create a continuous, downward path from the RDS tank to the OEM fuel filler or inlet point so diesel can transfer without an electric pump.

• Bottom outlet fittings designed to align with RDS tank drain points.
• High-quality seals to maintain vacuum-free, leak-resistant flow.
• Installation hardware sized for stable, long-term gravity siphoning.

Can I use this kit for gasoline or other fuels?

The 11025 kit is configured for diesel gravity feed; gasoline is permissible only when drawn from the top of an auxiliary tank using an electric fuel pump. Because gasoline requires a pump-based draw to meet safety and venting needs, this kit alone won’t provide the correct top-pump configuration.

• Diesel: compatible with gravity-feed installations from the bottom outlet.
• Gasoline: allowed only with a separate electric pump and top-siphon setup.
• Confirm fuel compatibility and local regulations before installation.

What should I know about compatibility and installation before buying?

RDS offers tanks in multiple sizes and shapes; ensure your selected transfer tank and your vehicle’s inlet accept the kit fittings. The kit is intended to simplify installation, but vehicle-specific line routing or additional adapters may be required for some applications.

• Check RDS tank outlet type and vehicle inlet thread/pattern before purchase.
• Some vehicles may need extra hose lengths or adapter fittings not included.
• Installation typically requires basic hand tools and standard mechanical skills.

Who is this for? The RDS MFG INC 11025 Diesel Install Kit suits truck owners, service fleets, contractors, and anyone adding an RDS auxiliary transfer tank who wants an economical, ready-made parts package to connect diesel fuel for gravity-fed refueling. If you plan on carrying gasoline, prepare to pair this kit with an electric pump and top-siphon plumbing, or consult RDS for the correct gasoline-specific components.