Best Auxiliary Fuel Line Connection Kit Options for Gravity-Fed Systems
Choosing the right auxiliary fuel line connection kit is essential for reliable gravity-fed fuel transfer in diesel applications. The kits below are designed to work with gravity-fed auxiliary tanks, offering corrosion resistance, secure fittings, and compatibility with popular diesel engines from Ford, Dodge, Chevy, and GMC. This guide surveys five well-regarded kits, highlighting compatibility, installation notes, and key features to aid in an informed purchase.
| Product | Brand | Engine Compatibility | Fill Line | Notes |
|---|---|---|---|---|
| Auxiliary Fuel Tank Install Kit (11025) | RALZAOTO | Ford (1999-2025 Diesel); Dodge (1999-2012); Chevy/GMC (2011-2022) | 1 1/2″ | Aluminum & rubber construction; gravity-fed, corrosion resistant |
| Dee Zee DZ97960 Kit | DEE ZEE | Diesel transfer to fuel line; general truck bed setup | — | Includes hoses and hardware; some OEM hose trimming may be required |
| RALZAOTO 11025 (Second Listing) | RALZAOTO | Ford (1999-2025); Chevy/GMC (2011-2022); Dodge (1999-2012) | 1 1/2″ | Same OE part number guidance; robust aluminum/rubber build |
| 11025 1 1/2″ Diesel Installation Kit | nipponAsia | Ford (1999-2025); Chevy/GMC (2011-2022); Dodge (1999-2012) | 1 1/2″ | Diesel-specific valve control to prevent spillage |
| LVOUP 11025 Kit | LVOUP | Ford; Chevy/GMC; Dodge (general compatibility) | — | High-quality aluminum & rubber; notes to keep valve closed during install |
RALZAOTO Auxiliary Fuel Tank Install Kit (11025)
The RALZAOTO kit is designed to deliver a stable gravity feed from an auxiliary tank to the OE system. Its construction uses aluminum and rubber components to resist corrosion and extend service life. It is specified for a broad range of diesel applications, including Ford models from 1999 through 2025, Dodge trucks from 1999 to 2012, and Chevy/GMC from 2011 to 2022. The kit is intended to be gravity-fed, helping maintain consistent fuel levels with minimal pump involvement. Always verify the OEM part number 11025 or 011025 to ensure compatibility with your truck’s fuel system before purchasing.
Key considerations: verify engine type (diesel only) and fitment window; ensure 1 1/2″ fill line aligns with your auxiliary tank. Installation emphasis is on corrosion resistance and a stable fuel supply, rather than high-pressure transfer.
Dee Zee DZ97960 Auxiliary Transfer Kit
The Dee Zee DZ97960 kit focuses on direct diesel transfer from the truck bed into the fuel line, encapsulating all hoses and hardware required for installation. While some trimming of the OEM fuel hose may be necessary, the kit is designed to enable a relatively straightforward setup for diesel systems. This option is particularly appealing for users seeking an all-in-one solution that reduces on-truck diesel routing complexity and provides a direct connection pathway from an auxiliary tank to the fuel line.
RALZAOTO 11025 Diesel Installation Kit (Second Listing)
This listing reiterates the 11025 part, emphasizing a gravity-fed connection with a 1 1/2″ fill line designed for diesel engines. Compatibility spans Ford, Chevy/GMC, and Dodge across specified years. The kit’s aluminum and rubber parts aim to resist corrosion and deliver a reliable fuel supply from the auxiliary tank to the primary tank, reducing potential fuel slosh or supply interruptions during operation. As with other listings, confirm OEM part numbers to ensure exact fitment.
11025 1 1/2″ Diesel Installation Kit (NipponAsia)
This kit highlights the same part number—11025—with a focus on diesel compatibility and a 1 1/2″ fill line. It covers Ford from 1999-2025, Chevy/GMC from 2011-2022, and Dodge from 1999-2012. A notable feature is a built-in valve control designed to close during installation, reducing the risk of fuel spillage as lines are connected or disconnected. Look for precise OEM references to ensure a precise match in your vehicle’s fuel system configuration.
VASTAUTO Auxiliary Fuel Tank Install Kit
The VASTAUTO kit is marketed as compatible with Ford, Dodge Ram, Chevy Silverado, and GMC models spanning late 1990s to early 2020s. It uses 3/8″ female drain fittings and includes the essential fittings, hoses, clamps, and hardware needed for a gravity-fed connection. The design emphasizes corrosion resistance and long service life, with a focus on straightforward installation for diesel applications. It aligns with 11025 and related part numbers to facilitate cross-compatibility with common gravity-fed tank configurations.
2″ 11029 Redrock RDS Kit
The Redrock RDS 2″ kit expands the system with a larger fill line suitable for certain diesel gravity-fed setups. It includes mounting hardware designed for compatibility with Dodge, Ford, Chevy, and GMC vehicles in the diesel category. The kit’s design focuses on ease of installation and a stable gravity feed, with attention to corrosion resistance and anti-seize thread treatment to improve longevity. The kit is advertised as compatible with various Dodge model years and newer Chevy/GMC configurations, making it a versatile option for appropriate diesel installations.
LVOUP 11025 Auxiliary Fuel Tank Install Kit
The LVOUP kit emphasizes a complete aluminum and rubber construction designed to resist corrosion and provide a long-lasting solution for gravity-fed fuel systems. It supports Ford (1999-2022), Chevy/GMC, and Dodge applications within the specified range, with a note to keep the valve closed during installation to avoid fuel leakage. This kit is positioned as a practical, robust option for users seeking a straightforward installation path with durable materials that align with OEM-style compatibility signals.
Auxiliary Fuel Tank Install Kit Fit for Ford, Dodge, Ram, Chevy Silverado, GMC Replaces 11025
This kit is marketed as a replacement or compatible option for the standard 11025 setup, with a gravity-fed auxiliary tank and a 1 1/2″ fill line. It is presented as a versatile solution suitable for Ford, Dodge, Ram, Chevy Silverado, and GMC models within the implied range. The features emphasize a steady gravity-fed fuel supply and materials designed to withstand harsh vehicle environments, making it a practical alternative for owners looking to match or replace a previous installation.
Buying Guide: Key Purchase Considerations And Comparisons
When selecting an auxiliary fuel line connection kit for gravity-fed systems, consider these factors:
- Engine compatibility: Verify diesel-only design and the exact year ranges for Ford, Dodge, Chevy, and GMC models to ensure proper fitment.
- Fill line size: Most kits use a 1 1/2″ line, while some offer 2″ variants. Confirm the fill line matches your auxiliary tank and vehicle inlet fittings.
- Materials and corrosion resistance: Look for aluminum and rubber components that resist corrosion in diesel environments, extending service life.
- Valve behavior during installation: Some kits include valves designed to close to prevent spillage during assembly; this is a critical safety feature.
- Hardware inclusions: Kits that include hoses, clamps, and fittings reduce separate purchases and simplify installation.
- OEM part numbers: Cross-check part numbers (e.g., 11025, 011025) to confirm compatibility with the vehicle’s fuel system.
- Installation complexity: Some kits require trimming OEM hoses or cutting; ensure you have the right tools and JIC or NPT fittings as needed.
- Brand reliability and warranty: Choose brands with solid track records in diesel accessories and check warranty terms for corrosion and hardware.
- System compatibility: If you already have an auxiliary tank (gravity fed), verify the kit’s suitability with that tank’s outlet size and thread type (commonly 3/8″ or similar).
- Safety considerations: Proper routing, secure mounting, and leak checks are essential to prevent fuel leaks and fire hazards.
In comparing options, prioritize kits that provide durable metal housings, corrosion-resistant fittings, and complete hardware packs. If you seek flexibility across Ford, Dodge, and GM platforms, options labeled with OE part numbers and broad diesel compatibility tend to offer the best long-term value. Always follow installation instructions carefully and perform a thorough leak test after assembly.