Can-Am Maverick R 9 Gallon Auxiliary Fuel Tank Kit
Eliminate range anxiety, stay out on the trail longer, and keep the throttle pinned in Sport Mode with the RPM SXS Can-Am Maverick R 4.5-Gallon Under-Seat Auxiliary Fuel Tank System! The high-output 240HP Rotax 999T engine is thirsty—especially when running aggressive tunes, elevated boost, or E85. Designed to mount low in the chassis directly underneath the factory seats, these modular tanks let you run a single side for a +4.5-gallon boost or pair driver and passenger units together for an incredible +9 gallons of auxiliary capacity, all without sacrificing handling or cabin space.
Mounting the fuel volume low under the seat bases keeps vehicle center of gravity low and centered, preserving sharp turn-in and eliminating the body roll caused by roof-mounted cans or high rear-bed fuel jugs. Because each tank is engineered as a dedicated "per-side" unit, all plumbing, tanks, and electrical lines sit completely clear of the rotating center driveshaft and hot exhaust components.
Refueling your primary fuel tank happens on the fly at an impressive 1.3+ gallons per minute via an included high-flow transfer pump and a pre-wired, plug-and-play wiring harness. The system is operated by a safety-focused momentary rocker switch, guaranteeing you never accidentally leave the pump running, drain your battery, or burn out the pump motor. If you install dual tanks, a single momentary switch operates both pumps simultaneously.
Safety and fail-safe design lead every aspect of this setup: unlike risky universal fuel cells, RPM’s system retains the factory tip-over check valve to stop leaks in rollover situations. Additionally, an intelligent closed-loop overflow routing circuit returns excess fuel directly back into the auxiliary tanks once your OEM tank reaches capacity—allowing you to hold the transfer switch on the move without fear of pressurizing or overfilling the primary tank.
System Specifications & Architecture:
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Capacity: 4.5 Gallons per side (Up to 9 Gallons combined with dual-tank configuration)
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Transfer Speed: High-Flow Electric Transfer Pump rated at 1.3+ Gallons Per Minute (GPM)
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Construction: 6mm Thick Seamless Cross-Linked Rotomolded Polymer (Nearly 3x thicker than OEM)
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Hardware & Fittings: Molded-In Stainless Steel Threaded Inserts & Stainless Fittings (No brittle brass)
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Fuel Cap: CNC-Machined Billet Aluminum Threaded Fill Cap
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Electrical: Plug-and-Play Relay Harness with Dash-Mounted Momentary Toggle Switch
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Safety Integration: Fully functional factory tip-over rollover check valve & automatic overflow return loop
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Chassis Location: Under-Seat Floor Pan Integration (Under front seats on 4-seat MAX models)
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Sales Configuration: Sold individually "per side" (Driver or Passenger) for a fully customizable setup
Features:
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Modular 4.5 or 9-Gallon Expansion: Run one side for +4.5 gallons or both sides for a massive +9-gallon total capacity increase to tackle long Baja pre-runs and remote desert loops.
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100% Non-Invasive Bolt-On Install: Installs cleanly under the factory seats with zero chassis cutting, welding, drilling, or custom bracket fabrication.
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Low Center of Gravity (CoG): Positions heavy fuel weight low beneath the seat frame, maintaining factory suspension dynamics and preventing high-speed cornering lean.
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On-The-Fly Rapid Transfer: High-volume transfer pump transfers fuel into the main tank at over 1.3 GPM while driving.
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Momentary Safety Switch: Spring-loaded momentary switch ensures the pump only operates while pressed, eliminating accidental battery drain and dry pump burn-out.
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Fail-Safe Anti-Overfill Routing: Engineered overflow system safely cycles excess fuel back to the auxiliary cell if the main tank tops out during transfer.
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Factory Rollover Protection: Integrates with OEM tip-over check valves to ensure zero fuel spillage in the event of an off-camber rollover.
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Severe-Duty Rotomolded Shell: 6mm seamless polymer shell delivers exceptional impact and puncture resistance against harsh desert roost and trail debris.
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Premium Billet & Stainless Trim: Precision CNC-machined billet aluminum filler caps and molded-in stainless steel fittings eliminate corrosion, cross-threading, and fuel leaks.
What's Included:
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(1) RPM SXS 4.5-Gallon Heavy-Duty Rotomolded Auxiliary Fuel Tank (Driver or Passenger side, based on selection)
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(1) CNC-Machined Billet Aluminum Fuel Fill Cap
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(1) High-Flow 1.3+ GPM Electric Fuel Transfer Pump
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(1) Plug-and-Play Wiring Harness with Momentary In-Cab Rocker Switch
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(1) Complete Fuel Line, Rollover Vent, and Return Plumbing Assembly
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(1) Complete Stainless Steel Mounting Hardware and Fitting Pack
Fitment:
Direct bolt-on under-seat fitment across all 2-seat and 4-seat Can-Am Maverick R platforms:
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Can-Am Maverick R (2-Seat): 2024–2026 (Base, X, X RS, X RS with Smart-Shox — Driver and/or Passenger Side)
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Can-Am Maverick R MAX (4-Seat): 2024–2026 (All trims — Mounts under Driver and/or Front Passenger Seats only)
Have a buddy who doesn't have an RPM Auxiliary fuel tank? Worry no more, with the RPM Fill A Buddy.
All orders typically ship within 2-4 business days of order being placed. Weekends, holidays, and weather may slow fulfillment down on order processing. Unless otherwise noted, backordered items will ship according to their estimated shipping times.