2003-2009 Lexus GX470 Auxiliary Fuel Tank System 18 Gallon

Description

The Helivue Design 18 Gallon Auxiliary Fuel Tank System is built for Lexus GX470 owners who refuse to compromise - whether you're a daily commuter covering long stretches or a hard-core overlander pushing deep into the backcountry. Designed, manufactured, and tested 100% in Colorado, this system has been beaten, bashed, and driven regularly between 5,000 and 13,000 feet of elevation without failure. The lightweight, high-clearance aluminum tank tucks neatly above the bumper line, staying almost completely invisible while keeping your KDSS, factory air ride suspension, and Class 4 receiver hitch fully intact.

Filling is seamless - the auxiliary tank connects through your factory filler neck and fills simultaneously alongside your main tank, so there's no extra steps at the pump. A programmable fuel transfer switch, fuel level gauge, quality fuel pump, and stainless steel fuel level sender are all included, giving you complete control over your extended range. This is a no-compromises solution for serious off-road and long-distance driving.

Key Features

• 18-Gallon Capacity: Adds significant fuel range, ideal for remote overland routes and long highway stretches.
• 1/8" 5052 Aluminum Construction: Thicker-gauge aluminum with superior corrosion resistance for long-lasting durability in harsh conditions.
• 100% USA Designed and Built: Designed, manufactured, and tested in Colorado - built to meet the demands of real-world off-road and overland use.
• OEM Split Fill Point: Fills through your factory filler neck - both tanks fill simultaneously with no extra steps or separate fill points.
• Preserves KDSS, Factory Air Ride, and Class 4 Hitch: Installs without removing or modifying your factory suspension systems or receiver hitch.
• High-Clearance, Low-Profile Design: Tucks above the bumper line and stays virtually invisible - no sacrifice to approach angle or aesthetics.
• Side-Corner Fuel Pickup: Allows "filling a friend" scenarios directly from the auxiliary tank when needed in the field.
• Reduced Leak Paths: Simplified design eliminates unnecessary complexity and hosing to minimize potential leak points.
• Keeps Factory Evap Systems Intact: All factory evaporative emissions systems remain in place - no compliance issues.
• Relocates Spare Tire: Yes - spare tire relocation is part of the install design.

Shipping

Please email us at service@omahasportsandgames.com for a delivery ETA or to confirm shipping details.

What's Included

• 18-gallon aluminum auxiliary fuel tank
• Programmable fuel transfer switch
• Fuel level gauge
• Quality fuel pump
• Stainless steel fuel level sender
• Stainless steel clamps
• Stainless steel hardware
• Bung

Why You'll Love It

Helivue Design built this system for people who actually use their rigs - not just on weekends, but on demanding multi-day overland trips and long daily commutes where running low on fuel isn't an option. The attention to detail is evident in every aspect, from the thicker 1/8" aluminum walls to the simplified hosing layout that reduces failure points before they become a problem. It's trusted by overlanders who push their GX470s hard across Colorado's high-altitude terrain, and that real-world testing means you can count on it when it matters most. The fact that it preserves every major factory system - KDSS, air ride, receiver hitch, and evap - makes this one of the most thoughtful auxiliary tank solutions on the market. With an estimated 5-hour install time and everything included in the kit, you'll be on the road with extended range sooner than you'd expect. Made in the USA, engineered for the long haul.

Product Specifications

FAQ