RPM Powersports Polaris RZR Pro XP Auxiliary Fuel Tank (2020-2026)
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The RPM Powersports 3.8 gallon auxiliary fuel tank mounts behind the seat of the Polaris RZR Pro XP, Pro S and Turbo R to add range without giving up cab space. It is a complete rzr pro xp auxiliary fuel tank kit with a dedicated fuel pump, wiring harness, momentary dash switch and all mounting hardware, for 2-seat and 4-seat models.
The tank is rotomolded from impact-resistant plastic built for off-road abuse and tucks in behind the seat. Fuel transfers to the main tank with a momentary dash switch, so the pump only runs while you hold it and can never be left on by accident, which protects it from cavitation and overheating.
This replaces RPM's earlier 4 gallon Pro XP 2-seat tank and now covers 4-seat models too. Choose the variant for your model year: 2020-2024 or 2025 and newer.
As a Polaris RZR Pro XP gas tank add-on, it extends the RZR Pro XP fuel tank on both the 2-seat and the RZR Pro XP 4 fuel tank setup, and doubles as a RZR Pro S auxiliary fuel tank and RZR Turbo R auxiliary fuel tank. If you are comparing any UTV auxiliary fuel tank or RZR Pro XP extra fuel tank, note that this RPM auxiliary fuel tank ships complete with pump and wiring.
Key Features
- 3.8 gallon capacity for rzr pro xp extended range
- Rotomolded, impact-resistant plastic construction
- Space-saving behind-the-seat mounting
- Momentary transfer switch so the pump cannot be left running
- Complete kit: fuel pump, wiring harness, switch and mounting hardware
- Fits 2-seat and 4-seat models
Built To Solve: Running Low on Fuel in the RZR Pro XP, Pro S and Turbo R
- Turning back early on long trail, desert or dune rides because of range
- Carrying loose fuel jugs in the bed or cab
- Auxiliary tank kits that need pumps and wiring sourced separately
- Transfer pumps accidentally left on and burned up
- Bulky tanks that take up cab space
Best For: Long-Range RZR Pro XP, Pro S and Turbo R Riders
- Desert and trail riders covering long distances between fuel stops
- Dune groups that want more seat time before heading back to camp
- 2-seat and 4-seat owners who want a behind the seat fuel tank with no cab intrusion
- Riders who need more capacity can look at RPM's 8.5 gallon dash tank or the 7.5 gallon Pro XP 4 floor tank
Specifications
- Brand: RPM Powersports
- Capacity: 3.8 gallons
- Construction: rotomolded plastic
- Mounting: behind the seat
- Included: fuel pump, wiring harness, momentary dash switch, mounting hardware
- Manufacturer Part Numbers: FTK-PO-15 (2020-2024), FTK-PO-16 (2025+)
Fitment
- 2020-2026 Polaris RZR Pro XP (2-seat)
- 2020-2026 Polaris RZR Pro XP 4 (4-seat)
- 2022-2024 Polaris RZR Turbo R, 2-seat and 4-seat
- 2025-2026 Polaris RZR Pro S, 2-seat and 4-seat
Select the 2020-2024 or 2025+ variant to match your model year. Fitment per RPM Powersports; not guaranteed on applications not listed.
FAQ
How much range does a RZR Pro XP auxiliary fuel tank add?
This tank holds 3.8 gallons of extra fuel. Actual added range depends on your machine, terrain and riding style.
Can the fuel pump be left running by accident?
No. The kit uses a momentary dash switch, so the pump only runs while the switch is held, which protects it from cavitation and overheating.
Does it fit the RZR Pro XP 4 and other 4-seat models?
Yes. RPM lists 2-seat and 4-seat fitment for the Pro XP, Turbo R and Pro S.
Which variant do I need?
Choose 2020-2024 for those model years and 2025+ for 2025 and newer machines.
Is everything needed to install it included?
Yes. The kit includes the fuel pump, wiring harness, switch and all required mounting hardware.
How does this compare to RPM's larger tanks?
This 3.8 gallon tank mounts behind the seat with no cab intrusion. RPM's 8.5 gallon dash tank and 7.5 gallon Pro XP 4 floor tank carry more fuel but mount elsewhere in the cab.
Why RPM Powersports
RPM Powersports designs auxiliary fuel tanks for most major turbo UTV platforms and supplies them as complete kits with pumps, harnesses and hardware rather than tank-only parts.
Extend the Range of Your RZR Pro XP, Pro S or Turbo R
Select the variant for your model year and confirm your machine is a Pro XP, Pro S or Turbo R. Add the RPM fuel tank add-on connection kit or a Fill-A-Buddy fuel transfer kit to round out your fuel setup, and see our Gas Tanks collection for higher-capacity options.
